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The America Ceramic Society February 15,1993 I hereby certify that the attached copies of American Ceramic Society Bulletin, Volume 28,1949, are true and accurate copies, which are maintained in the normal course of business at the American Ceramic Society, 735 Ceramic Place, Westerville, Ohio 43081. Christine Schnitzer Product Manager Ceramic Information Center 735 Ceramic Place Westerville, Ohio 43081-8720 614 890 4700 TWX: 7101109409 The American Ceramic Society BULLETIN A Monthly Publication Devoted to Proceedings of The Society, Discussions of Plant Problems, Discussions of Technical, Scientific, and Art Questions, and Promotion of Cooperative Research Volume 28, 1949 Charles S. Pearce, Editor Harold L. Dakin, Assistant Editor Luther E. Ohrstedt, Advertising Manager Committee on Publications: Karl Schwartzwalder, Chairman; R. E. Birch, J. J. Canfield, C. H. Hahner, and C. S. Pearce (ex officio). Contributing Editors: Officers of Industrial Divisions and Local Sections (For names, tee back of Title Page) Executive, Editorial, and Advertising Offices: 2525 North High Street, Columbus 2, Ohio Publication Office: 20th and Northampton Streets, Easton, Pa. DUST CONTROL IN THE CERAMIC INDUSTRIES* By W. C. L . Hemeon f This subject will never be more timely than at the pres ent period of unprecedented plant expansion and plant improvement. When plans of this nature are under con Looking at the problem, for the moment, from the stand point of the small plant operator who believes that he can not justify the capital expenditure for mechanical convey,^ LINE FROM kinyon UNLOAl of* PNEUMATIC CONVEYOR UNLOADED sideration, dust control aspects should also be considered. r unloaders and silo storage bins, what practical, efficacioyj Will the new equipment be more or less dusty than the methods are available? process it. will replace? What plans should be made to In considering this question it is necessary to recognj^ Flint eliminate dust? that the minimum requirement for success is that the du^ that may cause silicosis be completely controlled. This I. Dust Control in Relation to Modernization Plans means that if the dust from pulverized silica and from siljjj The cost of dust control causes many a plant manager to sand can be completely suppressed, the minimum require hesitate when he is fundamentally dissatisfied with the offending process itself from the production standpoint. He is concerned1 with the expense of a dust control system that may be obsolete when the process itself is eliminated. In any progressive company modernization is a continual process, and if needed dust control were to be postp'oned wherever there is thought of changing the equipment it would wait forever. The . three possible courses of action in these circum stances are (1) postpone the dust control expenditure until the new process has been installed, (2) install a first-class system which would be discarded when the process change developed, and (3) install makeshift dust control. If it appears that none of these policies fit a given situa tion and, particularly, if the costs would really be ex cessive for the time period before reconstruction, it is well ments are satisfied. (2) Flint Dust Control There is no way of eliminating the silicosis hazard ia manual unloading of box cars of flint by exhaust ventila. tion. If there were a procedure whereby such hazardous dusty materials could be made dustless by incorporating an addj. tion agent at the point of shipment it would be advag. tageous. Water is such an agent and it has, in fact, beeg the practice in some sections of the dinnerware pottery industry for more than 10 years to require the supplier to incorporate small quantities of water in flint at the point of shipment: Some extensive measurements have indicated that wheg properly done the effects of 2 to 3% moisture in dust sup. B t. I l k, r j III. Over Overhead storage equipment. Some of viously outlined are overhead bins, but any would employ, for silic; a car unloading procedescape of any dust. T to re-examine the particular plans for dust control to see if pression are literally marvelous. This procedure is eg. per bottom cars which they are not unduly elaborate for the circumstances. II. Raw Materials Handlins pable of completely suppressing flint dust to concentrations below the hazardous level--as applied to the manual car unloading operation. veys it to the bins, or it a pneumatic pipe line . Use of these arrange Car unloading, storage, removal from storage to weighing and mixing equipment are operations that are common to all ceramic industries and these operations are inherently dusty. They are taken up in order. The procedure is of much broader importance than for this particular material. It will be useful in suppressing the dust in similar handling of feldspar and of such tna- terials as silica cement for use in refractory furnace con struction. . in car unloading of flin flowing material that i the clays that cannot t: is not related to the i formed in removal fron (1) Car Unloading, Manual ..The commonest method of shipment of clays, flint, and spar is by bulk in box cars with unloading commonly done nianually by wheelbarrow. By modern industrial standards this is a crude method of handling, but it is easily understood on the basis of rela tive costs of raw materials and of product. A cost of 40 to 50 cents per ton to unload a raw material by hand is an extremely small proportion of the selling price of about $300 to $400 per ton, using figures of the dinnerware in dustry. Economic incentives, therefore, for installation of silo storage and mechanical handling have not been great for the small plant, i.e., one handling small tonnages. From the same facts it follows that the cost of the pro duct could not be greatly affected by an ordinary increase in handling costs in this department. Nevertheless, we think it is fairly obvious that manual handling methods will continue to be common for a long time. (3) Bag Shipment It might be thought that shipment, of flint in paper bags would be of great advantage in eliminating dust in car unloading, but in most instances this is not true. Sifting of material from bag openings and breakage of bags in transit distribute dry dust throughout the pile and this results in excessive concentrations of flint dust during car unloading. For ordinary handling methods, therefore, bag shipment of flint is no solution to the problem of preventing serious silica dust exposure in raw material handling. In summary, we know of no practical method tor ade quate control of flint dust in manual unloading methods, I those that require a man to go into the car, other than by r rendering the material dustless. Any arrangements that lessen or eliminate the time spent in the car are, of course, aids in reduction of total dust eiposure. These include bin conveyors where wheelbarro* travel ends at the car door and a drag line scoop which \ j. ! j. of by separate measure In glass plants, distri or with trippers, above Belt conveyors are favi to resist the abrasive a they do not simplify t are definitely not the materials like soda ash, is readily controlled by transfer from elevator t and exhausted sand bin: IV. We Dust caused by witl bins into a weigh car m point of discharge; its I available space and the car, etc. It may be done by * Presented at the 49th Annual Meeting of The Ameri can Ceramic Society, Atlantic City, N. J., April 24, 1947 (Materials and Equipment Division, No. 11). t Engineering Director, Industrial Hygiene Foundation, Mellon Institute, Pittsburgh, Pa. scrapes material from the car interior to a conveyor, some |r weigh car and surroum requiring an inside scoop operator and others only an oat- - partially enclosed weigh side operator. The miniature power shovel development the charging tunnel as tl is in a similar general category but, obviously, with many , Scale cars in some cas superior features. and dust collector moun i 94 Vol. 28, No. 3 (1949) I Dust Control in the Ceramic Industries 95 III. Overhead Bins, Silos, Etc. Overhead storage bins mean mechanical conveying equipment. Some of the methods of car unloading pre viously outlined* are often used in conjunction with overhead bins, but any modern installation of storage bins would employ, for silica or other free flowing dust material, a car unloading procedure that would prevent formation or escape of any dust. The material may be shipped in hop per bottom cars which discharge into equipment that con veys it to the bins, or it may be unloaded from box cars by a pneumatic pipe line or by pump. Use of these arrangements eliminate the silicosis hazard in car unloading of flint and sand as well as any other free flowing material that may contain free silica. Dust from the days that cannot be so handled is unchanged, but this is not rdated to' the problem of silicosis control. Dust formed in removal from the storage bin must be taken care of by separate measures. In glass plants,; distributing belts in shuttle arrangement or with trippers, above open-top bins, are not uncommon. Belt conveyors are fa vored because they are best adapted to resist the abrasive action of ceramic raw materials but they do not simplify the problem of dust control. They are definitely not the conveyor of choice for fine dusty materials like soda ash, spar, etc. For other materials dust is readily controlled by installation of exhaust at points of transfer from elevator to belt or from belt to bin. Covered and exhausted sand bins are a primary necessity. IV. . Weighing and Charging Dust caused by withdrawal of material from overhead bins into a weigh!car may be controlled by exhaust at the point of discharge;; its physical form will be determined by available space and the arrangements of bin spouts, weigh car, etc. i It may be done by a booth-type hood fixed over the veigh car and surrounding the chute, by exhausting the Partially enclosed weigh car directly, or even by exhausting *be charging tunnel as though it were a large booth. Scale cars in some cases may be exhausted by a small fan aud dust collector; mounted on the carrying frame. (1949) (1) Morris System The Morris patent describes an ingenious arrangement for exhausting the weigh car of a whiteware plant re gardless of its position on the tracks. Since nearly all of the dust in shoveling material from one point to another occurs at the receiving pile (in this case the weigh car), it is apparent that it provides an effective measure for dust control at that point, and this applies to the clays that are shoveled. In the case of flint and feldspar, all dust is controlled because the weigh car is filled from storage silos by screw feeders and dust originates only at the point of screw discharge. (2) Exhausting Charging Point Exhausting the point where weigh material is discharged is not a difficult problem, using conventional design proce dures, whether it be dropped by gravity into an elevator boot, or shoveled into a blunger or into a skip hoist. (3) Wet Methods Anyone who has watched the back-breaking, laborious and primitive methods of charging a mixer or blunger in a pottery plant is given to the thought, "There must be a better way of doing this." The -problem of weighing a continuous stream of dry materials accurately has not been solved in any simple and foolproof way. On the other hand liquids are easily measured accurately. This suggests, for certain ceramic industries, incorporating the dry raw materials with water during unloading of the car and storing them as water sus pensions. Proportioning the raw materials without dust and accurately is, then, a simple procedure of liquid meter ing based on the solids content. Methods of this general nature should be particularly applicable to whiteware manufacturers in which the raw material mixing process ends up with considerable excess water anyway. This principle is employed in wet process cement plants, in English potteries, and recently in a far western sanitaryware plant (see Fig. 1). . (4) Periodic Kilns In the setting and drawing of periodic kilns, dust con- 96 American Ceramic Society Bulletin--Hemeon eentrations usually do not exceed 5 to 10 million, less in the dust collector. Cloth type dust collectors are some. setting than in drawing. Rarely, concentrations may at times so overloaded, unnecessarily, as to vitiate the effec. E&houtt 0 tain 15 to 20 million in brick kilns. This dust exposure, therefore, where dust contains little or no free silica, is un important. It may be important, however, in the case of silica brick. ; tiveness of the entire exhaust system. If various dusty materials are served by the same exhaust system, the dust is an unknown mixture and hence waste. An important rule is to arrange the exhaust intake so 6"" \f fWRONCj The only control method applicable to control of this that the only material removed in the air stream is that dust is exhausting air from the kiln interior (by means of a already suspended in the air and locate the ends of exhaust portable unit) at a very high rate. Success in reduction of ducts connected to enclosures at remote points. This point XJ dust will depend upon the dustiness of the particular opera is illustrated in Fig. 2. tion, i.e., whether the rate of dust production is small The exhaust system is the most important element in enough to be effectively diluted by practically attainable the engineering of dust control and adequate design is im_ ventilation. perative. Nothing is more discouraging than the expends ture of large sums of money for a system which does not do Table I Estimated Relative Dustiness in Box Gar Unloading The figures are related to an arbitrary scale where 1 a good job or which requires constant attention for cleaning out. On the other hand, an equally distressing design is one that is unduly extravagant and which consequently costs Fig. 2.--Needless prc represents clean industrial air; 5 the limit of permissibility for highly toxic dusts like flint; 25 is mildly disagreeable though tolerable for nuisance dusts; and 50 to 100 is intolerable as a dust nuisance. . Unloading method Moist materials Dry materials Wheelbarrow into' bin Wheelbarrow to conveyor Drag line scoop--in car Drag line scoop--outside operator Power shovel Bag shipment 5 5* 5* 0-5* . 5* 50-100. 50* 75* 0-25* 25* 25-50 * The indicated method, by reducing the labor time, may reduce the dust exposure in some instances. too much, exhausting twice as much air as required, and having also, perhaps, a dust collector of double the neces sary size. V. Nuisance Dust and Silicosis Dust From time to time in the preceding discussion the writer has referred to silicosis hazards and to excessive dust. This is an important distinction. Silicosis is a pathological condition that may lead to disability and results from years of exposure to certain concentrations of dust that contain free silica. Excessive concentrations of other dusts con stitute a nuisance, are intolerable and not excusable on any economic grounds. It is imperative to clear thinking that ; diffraction.) Furthern - critical since only dust j; {cw microns in diamei : contains particles of la I sample from the stand ' give misleading results. To ensure that the f - -cared for, enlightened i L tain information as to t'. ~ and arrange for periodic | workers. VII. Nature Table II this distinction be made, because while it is agreed that both types of dust exposures must be eliminated, the two Table III attempts hazard from dust in rai Estimated Relative Dustiness in Weighing (From are separate problems and have altogether different degrees common ceramic indusi Storage) and Charging of urgency. the hazard in a given c Figures are based on the same dust concentration scale If there is a silicosis hazard there can be no question of as in Table I. .. .. economics or of economic balances; the hazard must be (I) the inherent toxicit silica content of the mat Moist Dry Control method eliminated with the least possible delay. Handling method Gravity discharge (overhead bins) - Shoveling (floor, bins) materials (Not ap plicable) 2 materials 50-100 50-100 (dry material) Local exhaust (a) High ex haust rate If there is not a silicosis hazard but dust is still present in such concentrations as to constitute definitely disagree able working conditions, plans for its control should also be instituted, but studies planned for maximum economy The silicosis hazard i plants is variable. In s J` on whether the methoc L batching operations it h Bags from bins (and possibly stepwise installation of dust control equip total dust exposure (noi (only in sum mer) ment) may proceed with more deliberation. r ing measures for its contr (b) Scale exhaust car (1) What Is Excessive Dust? t In silica brick manuf; [ silicosis are high. In ref . , (Not ap 10-20 Definitions of excessive nuisance dust concentrations | hazard is usually very 1< Charging mixer, blunger, mill, . etc. Gravity, to . a plicable) 50-100 Exhaust hopper (the dust being inert) vary throughout industry generally pretty much proportionally to the difficulty of dust control. Continuous exposures in excess of 50 to 100 million cannot be considered acceptable anywhere. In ceramic plants, | l exposure may be very hazard is a direct functioi I hopper arbitrary limits varying from 25 to 50 million have been set Silicosis Dust Proble: Shoveling * 50-100 Exhaust mixer by some plant operators for plant cleanliness, and in at opening least one plant the management has set for themselves a Industry Material (5) Product If Dust Perhaps the most significant characteristic of the ceramic dust control problem is that the dust is a part of the prod limit of 10 million. VI. Measuring the Silicosis Hazard Nuisance dust exposure is readily measured by conven Glass Silica brick Clay brick Pottery Sand Ganister Refractory clays Flint (dry i uct, or the product itself is dust, and not an incidental tional dust counting methods. These techniques deter Flint (moi material as in some other dusty industries. Where ex haust systems 'are employed for dust contf-ol in the raw material handling, every effort should, therefore, be made to reduce unnecessary transportation of useful material to mine total dust. Measuring the silicosis hazard on the .other hand requires supplementary techniques to deter mine how much free silica is in that dust. (The most re liable determinations of free silica are made by X-ray I Vol. 28, No. 3 (1) Economics of Dust C In factories where, by i objective of dust control dust to below 5 or 10 milli i (1949) |MU*t Diet nri 1 1/ i/VRONC 1' Dust Control in the Ceramic'Industries Vjt1/ RIGHT \! 97 writer dust. logical Sears tain :s conon any 'g that d that oe two ^erge tion of ust be >resent lagreeId also #omy equip- rations nerally Strol. nnot plants, een set 1 in at jives a WRONG: RIGHT --Needless product removal by exhaust system tion) Furthermore, the sampling procedure is fital s.ince ooni jy dust whose particles are smaller than a . jjj in diameter are significant. If the sample c[(oWntaTMins particl.es orf tla__r_g__e___r__s__i_z_e_ za.iti~is-- a_n__u__n___r_e__p__r_e__s__e__n__t_a__t_i_v_e_ sample from the standpoint of the human lung and may jjye misleading rMeIsMutUltsc. Xo ensure that the welfare of the employees is being jmed for, enlightened management will take steps to obmm information as to the nature of present dust exposures gnd arrange for periodic X-ray and medical examination of .makers. j VII. Nature Silicosis Dust Problem Table III attempts to represent the over-all relative Knrgrd from dust in raw material handling in four of the common ceramic industries. This table emphasizes that the hazard in a given case is the product of two factors: (1) the inherent toxicity which is governed by the free silica content of the material, and (2) by its inherent dusti- Tbe silicosis hazard in raw material handling in glass plants is variable.. In sand car unloading it is dependent on whether the methods employed make dust. In the batching operations it is nearly always very low, but the total dust exposure (nonsiliceous) is high where engineer ing measures for its control have not been instituted. ~ In silica brick manufacture all dust factors respecting silicosis are high. [In refractories manufacture the silicosis hazard is usually very low or nonexistent, but total dust exposure may be j very high. In potteries the silicosis hazard is a direct function of the amount of flint dust. Table III Silicosis Dust Problem in Raw Material Handling Industry Class Silica brick Clay brick Pottery M1 aterial Sand Ganister Refractory clays Flint (dry) Flint (moist) Tox. idty High High Low High High Dusti ness Low High High High Low Toxicity X dustiness High-low High Low- medium High Low (') Economics of Dust Control In factories where, by reason of the silicosis hazard, the objective of dust control is to reduce concentrations of ^Bst to below 5 or id million, and where there are numerous AB C EFFORT - DOLLARS EXPENDED Fig. 3.--Diminishing returns in dust control. sources of dust, a state of diminishing returns is commonly evident. Stepwise accomplishments measured in reduced dustiness cost more for each successive reduction in dust. (See Fig. 3.) This is just another way of saying that money expended for control of major dust sources accomplishes more in dust reduction than the same amount expended in the next step for control of lesser sources. The arrival of stage A or B, where residual dust remains in undesirable amounts, often inspires the remark to visitors, "You should have seen it when--." The first steps are concerned with control of obvious sources of dust. Beyond that point, the problem often becomes obscure. Important remaining causes of dust may not be obvious and their relative importance may not be clear. At this stage it is highly advantageous to an intelligent procedure to have definite knowledge of the remaining sources of dust and the relative amounts each contributes to the atmosphere. For example, studies in the ceramic industries indicate that the debris on floors (dust kicked into the air by walk ing) contributes a very small proportion of dust where total dust concentrations are higher than 4 to 5 million. This data enabled concentration of attention on other dust sources of more importance. If the economic situation at this stage is difficult, relative to estimated costs of fur ther improvement, arrangements should be made for measurements of total dust and its composition relative to free silica and consequent capacity to produce silicosis. If the writer appears to stress unduly the factor of costs in relation to' dust control it is hoped that the distinction made between the two aspects of the problem will make clear the attempt to have them viewed in proper perspec tive, i.e., as separate problems. The writer is convinced that any remaining silicosis hazards in this industry could be eliminated within a couple of years if management were apprised of the facts. The silicosis hazard can be measured and methods for its elimination, practically, are available. Any ceramic plant with a dust hazard can eliminate it. All that is required is for the executive head to realize fully its importance to his company, to issue the orders that dust must go, and to maintain that interest through out the cleanup program. -ri ri Ef- Directory of Corporation Members The Directoiy of Corporation Members of The American Ceramic Society is presented in the following na The companies listed here are the ones which are interested in the technical development of the ceramic indust These companies hire the technically trained men, buy and sell the latest machinery and equipment, and u the lead in the development of new equipment and processes. In each listing is included a description of the company's products and processes or the services it offers industry.' Also included is the name of the member of the company management who represents the Compaq in Society affairs as Corporation Voter. ^ The support given to The American Ceramic Society by these Corporation Members helps make possihl much of the publishing activity and much of the help given the Local Sections. The Society is taking this mean' of recognizing those companies which assist in this important work. Abingdon Potteries, Inc. J. M. Lewis Abingdon, 111. Producers of vitreous china plumbing fixtures, vitreous china specialties, vitreous china art pottery, and kindred lines; also miners and grinders of the famous Abingdon feldspar. A C Spark Plug Div., General Karl Schwartzwalder Motors Corp. Flint 2, Mich. Manufacturers of automotive and aircraft products: spark plugs; ceramic insulators, thermistors, and resistors; oil filters, fuel pumps, air cleaners, speedometers, and other instruments. Adamston Flat Glass Co. Russell Rice Box 631, Clarksburg, W. Va. The products of this company, manufactured under the trade name Clearlite, are sheet glass of various thicknesses from thin (weighing approximately 14 to 16 ounces per square foot to 7/i inch) and bulb-edge glass for shelving, cabinets, and counter dividers. Akron Porcelain Co. F. W. Butler Akron 14, Ohio Manufacturers of special electrical porcelain parts which are made to the customers' specifications and blueprints by the dry-press process. More than half a century of experience in producing unglazed white porcelain, unglazed gray porcelain, and glazed porcelain for the electrical and communications industries. Alamo Pottery, Inc. W. H. Wallingford Box 4367, Station A, San Antonio, Texas Manufacturers of vitreous china and. sanitaryware, com modes, and lavatories. Plants in San Antonio and Hondo, Texas. AllianceWare, Ltd. R. E. Strain Vancouver, Canada Began operations in July of 1946. Makers of porcelain enameled sanitaryware, architectural porcelain panels, porcelain ! enameled signs, table tops, etc. Imports pressed steel bathtubs, sinks, etc. for enameling and dis tribution in four western Canadian provinces. Alton Brick Co. Eben Rodgers, Jr' Alton, 111. Manufacturers of fire-clay and shale face brick, common brick, load-bearing and partition structural tile, paving brick, chimney tile, and Haydite concrete masonry units. Dealers in Insulux glass block, blazed brick, and tile. Sales office 3832 West Pine Blvd., St. Louis, Mo. Aluminum Co. of America, Chemicals Div. J. R. Eckley. Pittsburgh 19, Pa. Makers of more than 60 chemical products made from bauxite and fluorspar; many are used in refractories, glass, enamels, and porcelains. Materials are supplied in a variety ?of grades and specifications, including hydrated, activated; calcined, tabular and calcium aluminas, alu minum and sodium fluorides, sodium bifluoride, and fl borates. ' Uo' American Clay Forming Co. Ross c* <r Tiffin, Ohio loffer Manufacturers of radiants and backwalls for gas heaters special refractories for oil- and gas-burning furnaces an special shapes of high-temperature refractories. ' n" American Colloid Co. Paul Bechtn Merchandise Mart Plaza, Chicago 54, 111. er Producers of bentonite, with special grades for the cerami industry. lc American Gas Association C. G. SeeeU 420 Lexington Ave., New York 17, N. Y. - The central trade association serving all branches of the gas industry, including gas companies, gas-equipment manufacturers, and several thousand individual members- maintains testing and research laboratories at Cleveland and Los Angeles where gas appliances are checked for compliance with American Standards Association require ments; carries on extensive research program in ceramic field through the Industrial Gas Research Committee. American Glassware Association H. L. Dillingham 19 West 44th St., New York 18, N. Y. An association of pressed and blown glassware manufac turers which provides statistical information for its mem- bers and represents them in governmental and public relations; maintains a traffic committee, a tariff committee, and other committees on special subjects. American Lava Corp. Paul J. Kruesi Chattanooga 5, Tenn. A pioneer manufacturer of steatite, titania, alumina, and other ceramic insulating materials for electrical, textile, chemical, and mechanical uses. Producers of AlSiMag by extrusion, dry-pressing, and casting processes, with special surface treatments and precision ground for close tolerances; also Lava bodies to especially close dimensions for similar uses. American Nepheline Corp. H. R. Deeth Rochester 12, N. Y. Engaged in the production of Lakefield nepheline syenite. A granular product is produced for the glass industry and a 200-mesh product for use in the whiteware and other ceramic industries. American Optical Co. E. D. Tillyer Southbridge, Mass. Manufacturers of ophthalmic instruments and equipment, spectacle frames and lfenses, sunglasses, and industrial safety equipment. Through their Scientific Instrument Division, Buffalo, N. Y., they produce microscopes, pro jectors and other scientific instruments. American Porcelain Enamel Co. Robert Long 1285 E. Keating Ave., Muskegon, Mich. Manufacturers of porcelain enamel frit for steel at tem- 298 Vol. 28, No. 8 oeratures of 15' enamels for appl gashing machii reSistant enarae- ^jnerican Potasl Corp. 122 Ea Producers of po cake, borax, Pyi asb, bromine, L phate. Borax, suppffed in large American Radia Sanitary Corp. 1541; Manufacturers < genuine vitreou: plumbing and h. American Refrac 1872 Railw. A national orga . promoting the in refractory mater; American Smelti 120 1 Engaged in the ferrous metals, f - junction with the arsenic, cadmiur, raw materials in American Stove 1641 S. Kii American Stove commercial gas combination ran and furnaces. 1 Louis. The coi Cleveland and L- American Windo Farmer Manufacturers < 0.033 to 0.250 in. purposes; specia the medical prof, decorative uses; Amsler Morton ( Chamber of Complete plants drawn, polished, manufacturing s enameling; prod: forming machine personnel. Anchor Hocking Anchorglass narr. tumblers; metal Fire-King Oveng' Azur-ite dinnerw; kitchen, hotel, b and premium gla Arketex Ceramic Manufacturers o [r Permanent a hospitals, food p nches; two-plani Annco Steel Cor; ^mco is one of (1949) following pages eramic industry, nt, and take ices it offers the its the company >s make possible ^ng this means luoride, and flUo. Ross Stoffer sJor gas heaters furnaces, and tories. Paul Bechtner ;o 54, 111. is for the ceramic C. G. Segeler 1Branches of the ! gas-equipmen t ividual membersties at Cleveland are checked for sociation requireJgram in ceramic ch Committee. ^L. Dillingham ;, N. Y. issware manufaction for its memmtal and public . tariff committee. ^Paul J. Kruesi lia, alumina, and electrical, textile, cers of AlSiMag . ; processes, with ground for close close dimensions 0 H. R. Deeth. lepheline syenite, lass industry and zeware and other E. D. Tillyer fcnd equipment. and industrial tific Instrument licroscopes, pro- Robert Long , Mich. or steel at tem- t Vol. 28. No. 8 American Ceramic Society--Directory of Corporation Members 299 tares of 1500, 1400, and 1300F., and cast iron l^els for application to stoves, refrigerators, signs, and machines; also acid-, heat-, and corrosionenamels. iron for porcelain enameling purposes. This company also produces a complete line of special-purpose iron and steel and stainless-steel sheets and strip as well as stainless-steel bars and wire. --r efican Potash & Chemical R. M. Curts Armstrong Cork Co. E. C. Emanuel Corp' 122 East 42nd St., New York 17, N. Y. .Inducers of potassium chloride, potassium sulfate, salt Ptp0 borax, Pyrobor--dehydrated borax, boric acid, soda (^'bromine, U.S.P. bromides, and crude lithium phos^te ' Borax, boric acid, soda ash, and salt cake are P^niied in large quantities to the ceramic industry. siipPu Research Labs., Lancaster, Pa. Producers of glass containers, cork stoppers, metal and molded closures, insulating firebrick, corkboard, pipe covering and other insulating materials, linoleum, asphalt tile and other floor materials; wall coverings, acoustical material, gaskets, seals, and many industrial specialties. Distributors of Foamglas and glass-wool insulation. erican Radiator & Standard . James S. Goodman ^conitary CorP1541 South 7th St., Louisville 8, Ky. . ufacturers of cast-iron enameled plumbing fixtures; " uine vitreous china plumbing fixtures; all types of *^mbing and heating equipment. Ashworth, George L., & Bros., Ltd. R. L. Evans Broad St. Works, Hanley, Stoke-on-Trent, England Sole manufacturers of Mason ironstone china, the original ironstone china first patented in 1813. This immensely, durable tableware is made in a comprehensive range of well-known imperishable underglaze stock patterns of .' erican Refractories Institute W. J. Westphalen unique period character. *in 1872 Railway Exchange Bldg., St. Louis 1, Mo. i oational organization of manufacturers of refractories Babcock & Wilcox Co. A. M. Kohler " noting the interests of manufacturers and consumers of 85 Liberty St., New York 6, N. Y. factory materials. Manufacturers of special refractories for high-temperature ._erican Smelting & Refining Co. L. G. Matthews , 120 Broadway, New York 5, N. Y. P -aged in the smelting, refining, and marketing of non- fprrous metals, primarily copper, lead, and zinc. In con junction with these activities, producers of antimony oxide, ijjenic, cadmium, and selenium, all of which are used as and heavy-load conditions, such as glass-tank superstruc tures, checkers, enameling-fumaee piers, and other indus trial furnace applications; also a complete range of insulating firebrick for temperatures from 1600 to 2900 F. and refractory mortars, plastics, and castables, both standard and lightweight. raW materials in the ceramic industry. Ball Brothers Co. G. A. Ball American Stove Co. G. F. Fiske 1641 S. Kingshighway Blvd., St. Louis 10, Mo. American Stove Co. manufactures domestic gas ranges; commercial gas cooking equipment; coal, wood, and combination ranges; oil cooking stoves, space heaters, and furnaces. Principal administrative offices are in St. Louis. The company operates factories in St. Louis, Cleveland and Lorain, Ohio, and Indianapolis, Indiana. Muncie, lnd. Manufacturers of a general line of glass containers, including Ball-Mason and Ideal fruit jars, at plants in Indiana, Illinois, Oklahoma, and Texas; makers of clos ures for glass containers at Muncie and by Aridor Corpora tion, a subsidiary, in Chicago; zinc rolling mills at Muncie and Greencastle, lnd., to produce the zinc porcelain-lined caps for fruit jars and drawn zinc shells for dry-cell batteries; mechanical rubber goods. American Window Glass Co. A. S. Crandon 1 Farmers Bank Bldg., Pittsburgh 22, Pa. Bartlett-Collins Co. D. C. Hamilton Manufacturers of clear sheet glass in thicknesses from Sapulpa, Okla. 0.033 to 0.250 inch for glazing and scientific and industrial Manufacturers of machine-made table glassware, both purposes; special glass for the photographic industry and blown and pressed; a goodly percentage of this line is tbe medical profession; colored glasses for sunglasses and tumblers, screen process and hand decorated; normal decorative uses; safety glass for the automotive industry. distribution in the entire United States as well as in Cen Amsler Morton Corp. tral apd South American countries. P. M. Offill Chamber of Commerce Bldg., Pittsburgh 19, Pa. Complete plants for manufacturing blown, pressed, rolled, drawn, polished, wire, laminated, and fiber glass and for manufacturing silicates of soda and rock wool; metal enameling; producer-gas systems; fuel-oil systems; glass forming machines. Furnish construction and operating personnel. Bausch & Lomb Optical Co. Murray Scott Rochester 2, N. Y. Established in 1853 in Rochester, N. Y., this company manufacturers optical glass, ophthalmic lenses, frames, and mountings, safety glasses, Ray-Ban sunglasses, micro scopes and accessories, binoculars, photographic lenses, magnifiers, and projectors, and a complete line of optical Anchor Hocking Glass Corp. Lancaster, Ohio W. V. Fisher . instruments for military use, education, research, industry, and eyesight correction and conservation. l Anchorglass narrow- and wide-mouth jars, jugs, bottles and tumblers; metal and plastic closures and sealing machines; Fire-King Ovenglass; Jade-ite restaurant and dinnerware; Azur-ite dinnerware; plane,.decorated and hand cut table, kitchen, hotel, bar and restaurant glassware; industrial and premium glassware. Bay State Abrasive Products Co. O. S. Buckner Westboro, Mass. Manufacturer of grinding wheels, Bayflex products, cylinder honing stones, oil stones, mounted wheels and points, terrazzo rubs, refractory products and abrasive specialties. Branch offices and warehouses in Detroit, Arketex Ceramic Corp. George W. Shoemaker Chicago, Cleveland, Pittsburgh. Distributors in all Brazil, lnd. principal cities. Manufacturers of ceramic glazed structural building tile for permanent and sanitary walls in buildings such as hospitals, food plants, etc.; standard size 5 by 12 by 4 inches; two-plant output. Bengal Electric Lamp Works, Ltd. N. C. Sen 126 Mollapara Rd., Jadavpur, India First of its kind in India, this plant manufactures vacuum, gas-filled, railway, street lighting, carbon-filament, and Mmco Steel Corp. F. G. Sutphen glow-discharge lamps under brand names Bengal and Middletown, Ohio Bengal (IS). Other products are glass shells and a.-c. TMco is one of the oldest prime producers of enameling and d.-c. ceiling fans made under the brand name Belco. (1949) .300 American Ceramic Society--Directory of Corporation Members Benjamin ElectricMfg. Co. Hoyt P. Steele i Des Plaines, 111. Makers of porcelain enamel washing machine tubs and Crysteel porcelain enamel table tops. Fabrication and porcelain enameling of Benjamin porcelain enamel steel RLM dome reflectors for incandescent mercury vapor and fluorescent lamps. Bethlehem Steel Corp. W. M. Steinedce Bethlehem, Pa. Producers of intermediate and finished steel products of every type, pig iron, coke and coal chemicals, forgings, iron, steel, and brass castings. Bridges, buildings, tanks, transmission towers, and other fabricated steel construc tion. Shipbuilding and ship repairs. B. G. Corporation Frank J. Fallon Ridgefield, N. J. Manufacturers of spark plugs for aircraft and industrial types of operation; also industrial ceramic specialties, including low-loss alumina bodies. Associated items include thermocouples, spark-plug terminal sleeves, elbows, and spark-plug and ignition harness test sets. Binks Manufacturing Co. E. F. Watts 3136 Carroll Ave., Chicago 12, 111. Manufacturers of a complete line of standard and special spray-finishing equipment for ceramic and organic finishes; automatic spray finishing machines, Dynaprecipitor water wash and dry-type spray booths, exhaust and material handling systems.: Engineering service and consultation available without obligation. Blue Ridge Glass Corp. J. H. Lewis ' Kingsport, Tenn. Manufacturers of; rolled figured and wired lime glass; polished figured and wired glass; Aklo heat-absorbing glass; Securit (tempered) figured glass; special surface treatments; sandblasting, frosting, satinol; special rolled-glass products made to manufacturers' specifica tions. Blythe Colour Works, Ltd. Douglas R. Wildblood Cresswell, Stoke-on-Trent, England Manufacturers of vitreous enamels and colors for iron baths, electric cookers, refrigerators, hollow ware, kitchen utensils, and signs; colors and glazes for pottery, tile, sanitary ware, and glassware; dry .colors for paint, plas tics, rubber, and artists; enamels for badges and jewelry. Bonnot Company .. B. T. Bonnot Canton, Ohio _ Engineers, designers, and producers of. machinery for the ceramic industry, . the steel industry, and the chemical industry. This company also specializes in long-wearing dies for clay products manufacture and produces abrasion- resisting alloy irons and other iron alloy castings in its own foundry. Botfield Refractories Co. A. H. Engstrom Swanson and Clymer Sts., Philadelphia 47, Pa. Manufacturers of 'Adamant firebrick cement, a prepared, air-setting high-temperature bonding mortar; Adahearth, a plastic chrome-ore material for constructing hearths in billet heating and slag-tap boiler furnaces; AdachrOme supercement, a chrome-ore base, air-setting bonding mortar. Braun Corporation J. G. Stewart 2260 East 15th St., Los Angeles 21, Calif. Suppliers of industrial chemicals, scientific apparatus, laboratory chemicals, and equipment. Together with San Francisco house, the Pacific Coast agents for several large manufacturers, including B. F. Drakenfeld & Co., Inc. Brockway Glass Co., Inc. F. B. Hess Brockway, Pa. Manufacturers of glass containers in both flint and amber; a complete line of pharmaceutical, proprietary, and pre scription containers, also beers, whiskeys, foods, toilet and perfumes; three fully automatic machine plants. Buck Glass Co. R. a. BlUnt Fort Ave. and Lawrence St., Baltimore 30, Md. 1 One of the smaller companies which specializes in qualitv and service and has many "firsts" in the container induZ try; first deliberately to put alumina in milk-bottle glass- first to introduce commercially the square Space-Saver milk bottle; makers of a general line of flint-glass bottles Buffalo Pottery, Inc. R. E. Gonia 1456 Seneca St., Buffalo 10, N. Y. Manufacturers of plain and decorated vitrified hotel china for institutional uses. a Butcher, L. H., Co. 3628 E. Olympic Blvd., Los Angeles 23, Calif. Distributors of ceramic materials on the West Coast Cambridge Glass Co. W. L. Orme Cambridge, Ohio Manufacturers of a complete line of hand-made blown and pressed glassware of high quality and correct design- stemware, tableware, vases, candelabra, epergnes, and ali wanted pieces; lines complete in deep plate etchings rock crystal, gold encrustations, and plain ware; drug' gists', laboratory, and photographers' glassware. Carborundum Co. H. C. Martin Niagara Falls, N. Y. Manufacturers of a complete line of abrasives, including grinding wheels, abrasive paper and cloth, grains, and powders under the trade marks Carborundum and Aloxite- superrefractories under a Frax trade mark; resistance and heating elements under the trade mark Globar. Camegie-Illinois Steel Corp. J. C. Eckel 922 Carnegie Bldg., Pittsburgh 30, Pa. Manufacturers of a comprehensive line of steel products including sheets, tin plate, structural shapes, plates, bars! rails, and special sections in a complete range of chemical compositions; produce a special sheet for the porcelain enameling industry, USS Vitrenamel, and stainless steels. Carr-Lowrey Glass Co. Norman R. Beck Baltimore 3, Md. Manufacturers of flint containers and opal jars, machine- and hand-made, for cosmetics, perfumes, drugs, foods, and chemicals. Case, W. A., & Son Mfg. Co. Willard G. Young Robinson, 111. Manufacturers of a complete line of vitreous china plumb ing fixtures. Central Silica Co. E. C. Sawyer Zanesville, Ohio Producers of glass sand, enameling sand and flint, placing sand, and pottery flint. Ceramic Color & Chemical Mfg. Co. W. F. Wenning Box 297, New Brighton, Pa. Manufacturers and distributors of colors, chemicals, and equipment for all branches of the ceramic industry; oxides, screening colors, clays, frits; glazes, stains, decorat ing colors; vitrifiable colors; decorating supplies; mill- room supplies; refiners and producers of cobalt and cad mium compounds. Champion Spark Plug Co., Frank H. Riddle Ceramic Div. 8525 Butler Ave., Detroit 11, Mich. The Ceramic Division makes the ceramic insulators for the spark plugs which are manufactured and sold by the Champion Spark Plug Co. in its plants in Toledo, Ohio, Windsor, Canada, and Feltham, England. Chattanooga Glass Co. Joe G. Venable Chattanooga 10, Tenn. Manufacturers of glass jars, containers for soft dnnks( Vol. 28, No. 8 J , foods, toilets r line plants. R- A. Blunt rt30, Md. j. f-' aWes in quality container indus-" lilk-bottle glass ', are Space-Save^ int-glass bottles;; R. E.- GouldJ .4l.Y. rifled hotel china^ s 23, Calif, he West Coast: W. L. OrmV -made blown anc^ ^prrect design dPrgnes, and all] a plate etchings? ain ware; drug; issware. I H. C. Martij >f rasives, includin) loth, grains, ani_. iflhn and Aloxite; ` k; resistance and Globar. J. C. Eckel i 30, Pa. of steel products, tapes, plates, bars, range of chemical fr the porcelain stainless steels. Norman R. Beck >pal jars, machinemes, drugs, foods. ^illard G. Young reous china plumb- E. C. Sawyer id and flint, placing A W. F. Wenning *a. . , lors, chemicals, and ceramic industry, azes, stains, decorat- ting supplies; null- s of cobalt and cad- ^ Frank H. Riddle m11ic, Minsicuhla. tors for th. e :d and sold by the nts in Toledo. Ohio, <*nd. Joe G. Venable Is for soft drinks, Vol. 28, No. 8 American Ceramic Society--Directory of Corporation Members 301 plain, blown, lettered and ACL and other proprietary products in flint and green glass. Chicago Hardware Foundry Co. Robert J. Young i North Chicago, 111. Operators of ferrous and nonferrous foundries; enamel plant for enameling in both wet and dry processes on cast iron; machine shop and plating facilities. This company is engaged chiefly in jobbing work. i Chicago Pottery Co. * J. S. Clifford - I 1920-50 Clyboum Ave., Chicago 14, 111. Manufacturers of all types of vitreous china plumbing fixtures consisting of all types of lavatories, closet bowls and tanks, fountains, sinks, etc., for homes, industrial plants, and institutions; also various types of vitreous china specialties. Compania Mexicana de Refractarios, A. P. Green, S. A. Av. Marina Nacional 200 Bis, Apartado Postal 266, Mexico, D. F., Mexico Manufacturers of high-heat duty and superduty firebrick, refractory mortars, plastic refractories, and castables. Comptoir Tuilier du Nord Jean Delecourt 117, Rue Nationale, Marcq-en-Baroeul (Nord), France Consolidated Feldspar Corp. M. J. McHugh, Jr. 1403 Trenton Trust Bldg., Trenton 8, N. J. ` This company mines and grinds feldspar in several states for glass, pottery, porcelain enamel, and other ceramic products; also produces beryl, mica, amblygonite, lepido- lite, and flint. The feldspar is produced by the customary mining and grinding methods and by the flotation process. Chicago Retort & Fire Brick Co. C. S. Reed, Jr. i 208 S. La Salle St., Chicago 4, 111. Largest independent refractory manufacturer in Illinois, producing a complete line of fire-clay refractories from Missouri and Illinois clays. Products include Gibraltar, Anti-flux, Superior, Sterling, and Ajax brick, plastics, high-temperature cements, castables, and clays. Chicago Vitreous Enamel Product Co. William Hogenson 1 1407-47 South 55th Court, Cicero 50, 111. Manufacturers of porcelain enamel frits for steel and cast iron; clays; color oxides. Engineering service on new and existing porcelain enameling plants. Exclusive jjes representatives to the porcelain enamel industry for IMcSwiel porcelain grinding balls and mill lining brick, llnternational balls mills, Frantz Ferro Filters. Jobbers of a complete line of porcelain enamel shop supplies, i jChisholm, Boyd & White Co. B. T. Brennan j 610 West 57th St., Chicago 21, 111. [Manufacturers of brickmaking machinery. IClaycraft Company C. Forrest Tefft Box 866, Columbus 16, Ohio 'Manufacturers of structural and industrial clay products, including ceramic glazed and unglazed facing tile, buff, gray, and red face brick, acid brick, and floor brick; own land operate five large modem plants in Ohio. Colonial Insulator Co. R. W. Hemphill ; -- - 973 Grant St., Akron 11, Ohio- I Manufacturers of special electrical porcelain, porcelain I forms for dipped rubber goods, and refractory tubes and ) plates. | Columbia Fire Brick Co. M. L. Hamaker First National Bank Bldg., Canton 2, Ohio j Manufacturers of Columbia, No. 1 Savage, and Strasburg I firebrick at plant in Strasburg, Ohio. Commercial Decal, Inc. Alfred Duhrssen > Box 759, East Liverpool, Ohio | Manufacturers and suppliers of ceramic decalcomania | since 1902; overglaze and underglaze decal for chinaware j and semivitreous ware; special decalcomania for glassware |-and enamelware; open-stock patterns and exclusive de- | signs. Consolidated Glass Works, Ltd. I. Donen Pretoria and Germiston, South Africa Manufacturers of a complete line of glass containers for the food, pharmaceutical, beverage, and liquor trades. Consumers Glass Co., Ltd. E. J. Brunning Second Ave., Ville St. Pierre, Quebec, Canada Manufacturers of container glass; bottles, jars, tumblers, etc. Coors Porcelain Co. H. W. Ryland Golden, Colo. , Manufacturers of chemical and scientific porcelain; cook ing and tableware; pyrometer and combustion tubes, and tubes for other high-temperature uses; electrical insulators with extreme resistance to electrical, mechanical, and thermal demands; special ceramic products. Trade mark Coors U.S.A. Corhart Refractories Co., Inc. Frederick S. Thompson 1600 W. Lee St., Louisville 10, Ky. This company manufacturers and sells Electrocast refrac tories. Coming Glass Works J. T. Littleton Corning, N. Y. Manufacturers of consumer and technical glass products, including ovenware, flameware, tumblers and tableware, lighting ware, lamp chimneys, laboratory and pharma ceutical ware, optical glass and color filters, gauge glasses, glass piping, thermometer tubing, signal ware, incandes cent bulb blanks, exhaust tubing, neon tubing, fluorescent lamp tubing, radio insulators and tubes, and other elec trical parts. Coming Glass Works, Charleroi Plant Charleroi, Pa. (See Coming Glass Works, above). E. A. Spencer Crane Co., Chattanooga Div. Chattanooga, Tenn. Manufacturers of a wide range of porcelain enameled iron plumbing fixtures for use in homes, hospitals, schools, office buildings, and industrial plants, including sinks, bathtubs, lavatories, and special fixtures; also a complete line of boilers and radiators for steam and hot-water heating. j Commercialores, Inc. Henry S. Doty I 39 Cortlandt St., New, York 7, N. Y. i Producers of raw and calcined kyanite in grain sizes of i ~35, --48, --100, and --200 mesh. Refractory grade ^ lyanite of 56 to 58% alumina arid P.C.E. of 36-37. I Cosnpanhia Paulista de Eduardo C. Simonsen I Mineracao ; .. Caixa Postal 3008, Sao Paulo, Brazil, S. A. ! Ptoducers of raw materials for ceramic purposes. Cronin China Co. W. K. Cronin Minerva, Ohio Manufacturers of semiporcelain dinnerware, colored-glaze dinnerware, ovenware, and refrigerator ware. Crooksville China Co. Henry J. Bennett Crooksville, Ohio Producers of a high-grade line of semivitreous dinnerware .since 1902; now producing two complete shapes in Ivory Tone body with many .decorations and treatments, and Gray-lure, a gray glaze embossed and decorated. ] (1949) 302 American Ceramic Society--Directory of Corporation Members Crossley Machine Co. William J. Harris i Trenton 9, N. J. Manufacturers of a complete line of machinery for the making of general-ware pottery, sanitary pottery, elec trical porcelain, high-tension insulators, crucibles, and floor and wall tile, .......... Crown Potteries Co. J. P. Wendt - /Evansville 7, Ind. _ Manufacturers of Ihigh-quality semivitreous decorated ware in plain and embossed shapes; decorations follow authentic styling, using overglazed decalcomania; ad vantageously located for the trade in the South, South west, Central, and Central West States. sodium; used as a source of alumina for glass; also used in the manufacture of porcelain enamels, welding rods, and grinding wheels. 'a Douglas, John, Co. Krell BosW 71st Street and B. & O. R.R., Cincinnati 16, Ohio Manufacturers of vitreous china sanitary plumbing ware Drakenfeld, B. F., & Co., Inc. Scott J. Courtney . 45-47 Park Place, New York 7, N. Y. " Manufacturers of colors and coloring chemicals for giass clayware, and porcelain enamels; decorating supplies', grinding and screening equipment. Crunden Martin Mfg. Co. E. A. Schwartz Drammens Glassverk Ragnar Tanbere 760 South 2nd St., St. Louis 2, Mo. Drammen, Norway . Manufacturers of enameled kitchen utensils, galvanized Producers of 1,600,000 preserving jars and 1,500,000 sq m tubs, pails and cans, rubber fruit-jar rings, and various of window glass a year. Pressed and blown glass. Semi paper products. automatic machinery for jars and Fourcault machines for Curran, Edward, Engineering, Ltd. D. Ryan window glass. Plant for wire glass production. j Cardiff, Wales Builders of furnaces, pickling and washing plants, heavy machinery; makers of enameled ware. Davis Fire Brick Co. I Oak Hill, Ohio D. D. Davis Duncan & Miller Glass Co. James E. Duncan IrH Washington, Pa. 'a Manufacturers of blown and pressed table glassware- blown tumblers and stemware; etchings; decorated' novelties. Manufacturers of alcomplete line of all grades of fire-clay refractories in all shapes and sizes; also Sharon Brand Du Pont, E. I., de Nemours & H. C. Kuchler silica brick manufactured by the hand mold and power Co., Inc. press for open-hearth and electric furnaces, glass tanks, Electrochemicals Dept., Wilmington, Del. 'copper reverberatory furnaces, arid coke ovens. Manufacturers of a complete line of ceramic colors, in. DeMuth Glass Works, Parkersburg H. A. Julian Div. Box 629, Parkersburg, W. Va. Manufacturers of blown and pressed glassware and lamp tubing; also pressed ware to individual specifications. Denison Engineering Co. W. C. Denison, Jr. eluding body stains, glaze stains, overglaze and underglaze colors, oxides for porcelain enamels, acid- and alkaliresistant glass colors for use on glass tableware and con tainers; precious metal decorations. A technically trained service staff is available for assistance in the use of these products. 1160 Dublin -Rd., Columbus 16, Ohio Eagle-Picher Co. J. S. Nordvke Manufacturers of oil-hydraulic power equipment; hy 1501 Oliver Bldg., Pittsburgh 22, Pa. draulic presses, car; propellers, pushers, including presses Manufacturers of a complete line of lead and zinc products especially designed for ceramic industry as well as the for the ceramic industry: litharge, red lead, lead silicate Multipress in capacities to 35-ton self-contained units Alsilox, basic carbonate white lead, and zinc oxides. with interchangeable components for high production needs. Denver Sewer Pipe & Clay Co. W. J. Geddes Box 2329, Denver 1, Colo. Established in 1889, manufacturers of vitrified salt-glazed sewer pipe, wall coping and conduit, clay flue lining and fireproofing blocks,'firebrick and special refractories, face brick, stiff-mud common hrick, salt-glazed brick and hollow Eastman Kodak Co. Rochester 4, N. Y. Manufacturers of film, photographic plates, papers chemicals; cameras, projectors, and accessories; mounts and albums; lenses, optical goods, Recordak units; cellu lose acetate yarn and staple, plastics, chemicals; vitamin concentrates, high-vacuum apparatus. building tile, common structural clay tile, and structural Electric Auto-Lite Co., Spark Robert Twells face tile. ! Plug Div. DeVilbiss Company E. F. Frey 1 Toledo 1, Ohio Engineers and manufacturers of complete spray finishing systems, specially! designed for ceramic and porcelain plants, dry and water wash spray booths, automatic and hand-operated spray equipment and accessories, air com pressors, hose and/ connections. Diamond Alkali Co. ' Painesville, Ohio L. T. Welshans Fostoria, Ohio Manufacturers in twenty-eight plants of automotive and aviation equipment principally in the electrical, lighting, control, protection, and ornamentation fields. The Spark Plug Division makes principally automotive and aviation spark plugs, fabricating and assembling all components. The Ceramic Department has six tunnel kilns and four decorating kilns. Canadian spark-plug plant, Sarnia, Ont. Manufacturers of soda ash, caustic soda, bicarbonate of Electro Refractories & Alloys Corp. Grant S. Diamond soda, liquid chlorine, carbon tetrachloride, silica of soda, 344 Delaware Ave., Buffalo 2, N. Y. bichromate of soda, and precipitated calcium carbonates Manufacturers of Electrocarb silicon carbide grain; for paint, rubber, arid industrial purposes; specialty cleans . Kellogg silicon carbide slabs, posts, setters, muffles and ers for the laundry, dairy, and bottling trades; refractory other special refractories; Tercod melting crucibles; and light-calcined magnesia. special high temperature refractory cements and ramming Dixon, Joseph, Crucible Co. Warren A. Zimmer I Jersey City 3, N. J. mixtures; stopperheads for steel ladles; resinoid grinding wheels and additive nonferrous alloys. Producers of graphite products, including crucibles, re torts, ladle stoppers, nozzles and sleeves, special refractory shapes, refractory cements; pencils and pencil leads; graphited paints arid lubricants. Dominion Minerals, Inc. ! Piney River, Va. V. V. Kelsey , English China Clays Sales Corp. D. E. Milne i 551 Fifth Ave., New York 17, N. Y. Importers and distributors of English clays for the pottery industry. Erie Resistor Corp. Byron B. Minruum Pioneer miners and refiners of aplite, a rock product con 644 West 12th St., Erie, Pa. sisting of silicates' of aluminum, calcium, potassium, and Manufacturers of carbon-composition resistors and radio- Vol. 28, No. interference suppress capacitors, and moldc navigatioHi- coramuni. ment. Eureka Flint & Spar ( 190 W. St Suppliers of Eureka g American sand flint, sand. Evans Lead Corp. Box 1467 Manufacturers of all 1 lead bisilicate, frittelead monosilicate. r nets is available. Exolon Company T< Manufacturers of sili aluminum oxide (Exc and fused aluminum ground form, graded t industries. Fabrica de Ladrillos I triales y Refractaric Apartado 390 Manufacturers of fire brick, all standard am cast refractories and names Flir and Silica. Fabrica de Porcelana c Largo da Biblioteca A 125-year-old manu tableware, now also : brand name VA. Bi ceramica, making insu Ltd., making tablewai Fairfacts Company, In Box 3'. Manufacturers of a 1 consisting of soap hold paper holders, towel b: Federal Glass Co. 515 E. Innit Producers of glasswai including tumblers, tal and lighting ware in a cal characteristics. Federal Seaboard Ten Per Manufacturers of Endi swimming pool overfl Factories at Perth Am Ferro Enamel Corp. 4150 East 56 Manufacturers of Ferr on metal products; Fei and other enameling n of porcelain enameling Allied Engineering Div pottery and clayware 1 Ferro Enamels (Aust) 27 Bourke Rd., I Enamel Division: M color oxides, opacifier: equipment. Pottery t etcPttery c^ays* cast' Ferro Engineering Co. . 1208 Hanna } ^nis company sells am American Ceramic Society--Directory of Corporation Members 303 : 4 i i1 %' -1l . ^gfference suppressors, mica and ceramic dielectric ^nacitors, and molded plastic parts; all for use in radar, ^^gation, communication, and similar electronic equip ment- eureka Flint & Spar Co., Inc. Herreld D. Thropp | 190 W. State St., Trenton 8, N. J. ,, ppljers of Eureka glaze feldspar. Eureka body feldspar, ^jnerican sand flint, English Cornwall stone, and placing sand- iCffans Lead Corp. R. M. Evans * ! Box 1467, Charleston 25, W. Va. Manufacturers of all types of red lead and litharge, fritted lead bisilicate, fritted lead monosilicate, and 300-mesh lead monosilicate. Detailed information on these prod ucts is available. Exolon Company William A. Harty I Tonawanda, N. Y. Manufacturers of silicon carbide (Carbolon) and fused aluminum oxide (Exolon) abrasives; also silicon carbide and fused aluminum oxide refractories in crude and ground form, graded to the requirements of the consuming industries. Fabrics de Ladrillos Indus- Salvador Odriozola Gomez triales y Refractarios, S.A. ' Apartado 390, Monterrey, N:*L., Mexico Manufacturers of fire-clay brick, high heat-duty and silica brick, all standard and special shapes, refractory mortars, ja^t refractories and insulating brick, under the brand names Flir and Silica. Fabrica de Porcelana da Vista Alegre Ld". largo da Biblioteca Publica No. 17, Lisbon, Portugal A 125-year-old manufacturer of fine porcelain art and tableware, now also making porcelain insulators, under brand name VA. Branch firms are Empresa Electro- ceramica, making insulators, and Sociedade de Porcelanas, Ltd., making tableware and low-voltage insulators. Fairfacts Company, Inc. M. P. Mitchell 1 Box 374, Trenton 3, N. J. Manufacturers of a line of china bathroom accessories, consisting of soap holders, toothbrush and tumbler holders, paper holders, towel bars, etc. Federal Glass Co. Henry H. Blau ; 515 E. Innis Ave., Columbus 7, Ohio Producers of glassware for domestic and hospital uses, including tumblers, tableware and kitchenware, stemware, and lighting ware in a variety of shapes, colors, and physi cal characteristics. Federal Seaboard Terra Cotta Corp. O. E. Mathiasen | Perth Amboy, N. J. Manufacturers of Enduro-Ashlar architectural terra cotta, swimming pool overflow rims, and ceramic specialties. Factories at Perth Amboy and South Amboy, N. J. Feno Enamel Corp. R. A. Weaver 4150 East 56th St., Cleveland 5, Ohio Manufacturers of Ferro frits for porcelain enamel finishes onimetal products; Ferro color oxides to be used with frits, and other enameling materials. Designers and installers of porcelain enameling furnaces and plant layouts. The Allied Engineering Division offers the same services in the pottery and clayware fields. Ferro Enamels (Aust.) Pty. Ltd. R. M. Mueller 27 Bourke Rd., Alexandria, N.S.W., Australia Enamel Division: Manufacturers of vitreous enamels, color oxides, opacifiers, alkali cleaner, and enamelling equipment. Pottery Supplies Division: Manufacturers of pottery clays, casting slip, glazes, overglazes, stains, etc. Ferro Engineering Co. Walter M. Charman 1208 Hanna Bldg., Cleveland 15, Ohio tais company sells and services the C&D Hot Top and (1949) advises on steel ingot and ingot handling problems. The C&D Hot Top increases yields,-safeguards quality, cuts costs, and systematizes and modernizes operations. Fiberglas Canada, Ltd. Oshawa, Ontario, Canada Fiberglas is glass in fiber form used as insulating material for all types of electrical, industrial, and construction uses, as well as in original equipment. Findlay Clay Products Co. John L. Leedi Washington, Pa. Manufacturers of vacuum cast tank blocks, refractories, and glassmelting pots usually high in silica; high-alumina refractories including sillimanite; specialists in compli cated and large shapes. Fletcher Enamel Co. J. Carroll Fletcher Dunbar, W. Va. Manufacturers of a complete line of porcelain enameled kitchenware. Foote Mineral Co. H. C. Meyer Eighteen West Chelten Bldg., Philadelphia 44, Pa. Manufacturers of lithium, strontium, and tungsten chemi cals. Processors of beryllium, lithium, manganese, tita nium, and-zirconium minerals; also chromite, natural iron oxides, ground glass, and pyrites. Fords Porcelain Works I. A. Hansen Perth Amboy, N. J. Manufacturers in porcelain of kitchen sinks, laundry trays, urinal stalls, bathtubs, and like items; in vitreous china of toilet bowls and tanks, lavatories, and urinal stalls. Foster-Forbes Glass Co. F. R. Motsch Marion, Ind. This company and its predecessor companies since 18 have specialized in the manufacture of quality containers in flint glass only. The major lines are toilets, cosmetics, prescription foods, catsup, liquor, wines, beers, and beverages. Fostoria Glass Co. W. F. Curtis Moundsville, W. Va. Manufacturers of handmade blown and pressed tableware and decorative glassware. Distribution is made through selected retailers in all principal cities and towns. Franklin Glass Corp. A. L. Pasquier Box 150, Butler, Pa. Manufacturers of polished plate glass of largest sizes, bent glass in all sizes, structural and colored plate glass, and ground and polished spectacle glass. Frantz, S. G. Co., Inc. S. G. Frantz 161 Grand St., New York 13, N. Y. Producers of FerroFilter magnetic separators for removing iron particles from slips, glazes, and powdered clays; vibrator types for non-free-flowing materials. Frazier-Simplex Inc. C. J. Frazier 436 E. Beau St., Washington, Pa. Contracting and consulting engineers to the glass industry offering plantwide service including window, plate, con tainer, tubing and sodium silicate plants; will design, furnish, and erect complete glassmaking operations and modernize existing plants. Simplex lehrs, blanket batch chargers, adjustable shadow walls. French Saxon China Co. W. V. Oliver Sebring, Ohio Manufacturers of dinnerware for home use in three exclu sive shapes and a variety of decorations. Funkhouser Company E. H. Nichols 138 W. Washington St., Hagerstown, Md. Miners and manufacturers of natural slate and stone roof ing granules, treated at high temperatures with fluxing materials, frits, glazes, and coloring oxides to produce more intense colors, for use in surfacing composition roofing. 304 'American Ceramic Society--Directory of Corporation Members Garco Products, Inc. N. S. Garbisch Box 351, Butler, Pa. Manufacturers of Garspar, an intimate mixture of chemi cally and mechanically processed pulverized silica and glass for use in vitreous and semivitreous ware, and Garsand, a specially formed siliceous product designed for use in all types of glass batches. Garfield Refractories Co. Kenneth A. Rugh Bolivar, Pa. IJ^nufacturers of Garfield, IXL, and Walbro firebrick; Cbrstex superduty firebrick; and Balgar 50% alumina and Balgar 60% alumina refractories. Gladding, McBean & Co., Inc. W. O. Brandt 2901 Los Feliz Blvd., Los Angeles 26, Calif. 1 Manufacturers of Franciscan china and earthenware Hermosa wall and floor tile, roof tile, face brick, ceratni' veneer, sewer pipe, and refractories. Ten plants. c Glen-Gery Shale Brick Corp. Gordon E Lewi Reading, Pa. ls Manufacturers of wire-cut face brick and colonial brick in eight plants in eastern Pennsylvania. A wide variety 0f textures and colors are produced at the rate of 144,000 000 brick a year. The company's slogan is "One.Hundredt One Million Quick." 0 General Ceramics and Steatite Corp. R. W. Fergusen ' Keasbey, N. J. Manufacturers of , electrical and industrial ceramics, steatite high- and low-tension porcelains, titanates, and ferrites (Ferramic), 'electrical refractories, solder seal and Sealex bushings. Tool and die shop facilities. Chemical stoneware and porcelain process equipment; pumps, pipe, fittings, towers, and vessels. Facilities for jiggering, casting, extruding, and pressing; research laboratory and service engineering! department. Glenshaw Glass Co., Inc. George W. Mev Glenshaw, Pa. r Manufacturers of glass containers for beer,liquors,and wines; packers; preservers; narrow-neck and wide mouth bottles. Globe Brick Co. East Liverpool, Ohio Manufacturers of firebrick, ladle brick, fire clay. S. C. Porte r andproducers of General Color & Chemical Co., Inc. HarryJ. Keener Box 7, Minerva, Ohio ;j. Manufacturers of a complete line of colors, -frits, and chemicals for ceramic processes; consultant engineers. General Electric Co1., Pitney Glass ^orks i W. S. Kahlson 1133 East 152nd St., Cleveland, Ohio Manufacturers of glass bulbs, clear and inside frosted for incandescent lamps and electronic tubes. Other G.E. plants at Cleveland, Niles, Bueyrus and Logan, Ohio, Bridgeville, Pa., Jackson, Miss., and Lexington, Ky., manufacture tubing for lamp and tube parts, lumiline and fluorescent lamps,, glass parts for sealed-beam lamps, ' opaque and clear quartz tubing and cane. General Glass Equipment Co. Victor A. Plumbo 5 S. Virginia Ave., Atlantic City, N. J. Complete glass plant installations for bottles, tableware, and window glass. ' Oil- or gas-fired furnaces; annealing and decorating lehrs; automatic lehr loaders and batch chargers; forming and pressing machines; refractory materials; glass fiber drawing machines. General Refractories Co. Russell P. Heuer 1520 Locust St., Philadelphia 2, Pa. Manufacturers of `refractories with tweqty-three plants operating in ten states; products include fire-clay, silica, magnesite, and chrome brick and acid, neutral, and basic bulk refractories; offices in all large cities. George, W. S., Pottery Co. W. C. George |East Palestine, Ohio Manufacturers of plain and fancy dinnerware in white, canarytone, and colored glazes; monogram sets with black and blue initials. Plants in East Palestine, Ohio, and Canonsburg, Pa. Georgia Kaolin Co. Wharton Jackson 433 N.'Broad St., Elizabeth 3, N. J. Producers of china clays for the ceramic industry since 1901 at Dry Branch', Ga. Pioneer--plastic, high green strength, excellent workability. Velvacast--controlled particle size, fast casting. Both are white-firing clays, available water washed and airfloated. Gillinder Brothers, Inc. J. Fletcher Gillinder Port Jervis, N. Y. Manufacturers of! all glass forms designed to collect, dis tribute, direct, refract, reflect, and/or diffuse light from any electrical source; instrument covers; kitchen mixing sets; specialties of crystal, opal, translucent, and colored glassware; during the war, spectrophotometrically con trolled colored glass. Graff-Kittanning Clay Products Co. John G. Frant, -Worthington, Pa. 4 Manufacturers of vitrified clay pipe, flue lining, wall coping, and clay products; owners of the Worthington Ceramics Co., Worthington, Pa., manufacturers of drain tile and hollow tile; a member of the Clay Sewer Pin. Association. * 1 Grand Enameling Co., Div. of Grand Industries, Inc. V. J. Cichowski 2335 E. 67th St., Cleveland 4, Ohio Vitreous enameling of both sheet steel and cast iron Producers of flatware for stoves and kitchen cabinets incinerator parts, washing machine tubs, sinks, refriger ator flatware, space heaters, reflectors, transformer eases building materials such as shingles, siding, etc., and hollow- ware items. Parent company produces Grand gas ranges Great Lakes Foundry Sand Co. C. L. Cruikshank 720 United Artists Bldg., Detroit 26, Mich. Exclusive sales agents for the American Nepheline Cor-" poration, miners and processors of Lakefield nepheline syenite, used as a flux in pottery or as a source of aluminum oxide in glass and enamel. Other products include placing sand, fire clay, flint, bentonite, and prepared low-tem perature bodies. Great Lakes Steel Corp. Conrad W. Given Ecorse, Detroit 18, Mich. A division of the National Steel Corporation, makers of Michigan Metal, widely used in many products as a base for porcelain enamel. Green, A. P., Fire Brick Co. R. S. Bradley Research Dept., Mexico, Mo. Manufacturers of a complete line of fire-clay brick, in cluding high alumina, super duty, high heat duty, and intermediate duty; refractory specialties including mor tars, plastics,' castables, coatings, and industrial insula tion; also insulating firebrick. ( Haeger Potteries, Inc. E. H. Haeger Dundee, 111. Manufacturers of a line of flower bowls, vases, fruit bowls, and figurines; a large number of planter items for florist Use ; war work equipping barracks and officers' quarters. Hall China Co. M. W. Thompson East Liverpool, Ohio . Manufacturers of a complete line of plain and decoratea teapots, casseroles, bowl sets, and other cooking an serving porcelain articles; also a small line of decoratea semivitreous dinnerware and soda-fountain jars. -- Vol. 28, No. 8 A Hampden Grinding Vi 118 Fisk A Incorporated in 1886 Corundum Wheel Con facture of grinding wh industry. Hancock Brick & Tile Box Manufacturers of com Hanley Company S Operators of modem and Lewis Run, Pa., brick and face tile; ; quarry tile, floor brick Hanovia Chemical & ! 1 W. Centra producers of bright : ladium, and silver in luster colors and staii also ceramic precious purposes and hermeti Harbison-Walker Ref 1800 Farmers I Producers of fire-clay silica, magnesite, chrbrick, insulating fireb silica clays, special f dead-burned grain m mortars, ramming mix Hardinge Co., Inc. Manufacturers of co mills; tube, rod, badriers; rotary kilns; mills; wet classifiers weight feeders; sen diaphragm sludge pui ters; circular and centrifugal clutches; Ear for automatic mi Harker Pottery Co. Ea: Continuously in busi produces decorated ( goods at its plant loc: Harshaw Chemical C< 1945 East 9 Producers and distrib branches of the ceram Hartford-Empire Co. Box 16 Better glassware at ; company's services a plant engineering, gla melting furnaces, f& annealing lehrs, decc devices, and mold eng Haviland, Theodore, i 26 West 23r Manufacturers and d Haws Refractories Cc 407 Ma Manufacturers of firel and silica refractories Hazel-Atlas Glass Co. Manufacturers of p; ^are, fruit jars and ca decorated ware, and {1949) American Ceramic Society--Directory of Corporation Members 305 s 26,WC.aOlif.. Brand*t and earthenware ace brick, ceramic 'en plants. %>rdon E. Lewis d colonial brick in A wide variety Qf -ate of 144,000,000 "One Hundred to ^orge W. Meyer beer, liquors, and v-neck and wide- S. C. Porter and producers of John G. Frantz flue lining, wall ; the Worthington ifacturers of drain : Clay Sewer Pipe v. J. Cichowski 4, Ohio eel and cast iron. kitchen cabinets, tbs, sinks, refrigertransformer cases, ig, etc., and hollow;^rand gas ranges. C. L. Cruikshank it 26, Mich, an Nepheline CorOakefield nepheline source of aluminum ucts include placing prepared low-tem- Conrad W. Given ich. ^oration, makers of products as a base R. S. Bradley fife-clay brick, in;h heat duty, and :ies including mor- industrial insula- E. H. Haeger rases, fruit bowls, r items for florist officers' quarters. VI. W. Thompson .in and decorated her cooking and line of decorated tin jars. Vol. 28, No. 8 % | % ?i 1' . -,,den Grinding Wheel Co. G. S. Emerson HUM' 118 Fisk Ave > Springfield 7, Mass. rporated in 1886 under the name of the Hampden r rundum Wheel Company; now specialists in the manu- f ture of grinding wheels used largely in the heavy goods industry- uancock Brick & Tile Co. J. Leo Child Box 59, Findlay, Ohio Manufacturers of common brick and drain tile. Hanley Company Charles E. Bates ** Summerville, Pa. Operators of modern tunnel kiln plants at Summerville nd Lewis Run, Pa., producing buff, gray, and red face Lick and face tile; glazed brick and face tile; vitreous quarry t,i*lie_, flo,,o_r_ brick _a_nad _a_ciiad ib__ri:c^ki.. Hanovia Chemical & Mfg. Co. W. Riehl 1 W. Central Ave., East Newark, N. J. producers of bright and burnished gold, platinum, pal ladium, and silver in liquid, paste, and powder form and luster colors and stains for decorating pottery and glass; also ceramic precious metal coatings for current-carrying purposes and hermetic sealing. Harbison-Walker Refractories Co. W. F. Rochow 1800 Farmers Bank Bldg., Pittsburgh 22, Pa. producers of fire-clay, superduty fire-clay, high-alumina, silica, magnesite, chrome, and forsterite brick, acidproof brick, insulating firebrick and bulk insulation, fire clays, silica clays, special furnace chrome, furnace magnesite, dead-burned grain magnesite, high-temperature bonding mortars, ramming mixtures, plastic firebrick, and castables. Hardinge Co., Inc. Harlowe Hardinge York, Pa. Manufacturers of conical or cylindrical ball or pebble mills; tube, rod, batch, ball, and pebble mills; rotary driers; rotary kilns; air classifiers for ball and pebble mills; wet classifiers; agitators; thickeners; constant- weight feeders; scrubbers; rotary tubular conveyors; diaphragm sludge pumps; automatic backwash sand fil ters; circular and rectangular clarifiers; automatic centrifugal clutches; automatic samplers; and Electric Ear for automatic mill-feed control. Harker Pottery Co. Robert E. Boyce East Liverpool, Ohio Continuously in business since 1840, this company now produces decorated dinnerware, ovenware, and juvenile goods at its plant located at Chester, W. Va. Harshaw Chemical Co. John W. Iliff 1945 East 97th St., Cleveland 6, Ohio Producers and distributors of chemicals and colors for all branches of the ceramic industry. Hartford-Empire Co. F. Goodwin Smith Box .1620, Hartford 2, Conn. Better glassware at lower cost is achieved through this company's services and equipment, which include glass plant engineering, glass technology, batch chargers, glass melting furnaces, feeders, forming machines, stackers, annealing lehrs, decorating lehrs and driers, inspection devices, and mold engineering. Haviland, Theodore, & Co., Inc. Theodore Haviland II 26 West 23rd St., New York 10, N. Y. Manufacturers and distributors of fine china dinnerware. Haws Refractories Company E. E. Slick, Jr. 407 Main St., Johnstown, Pa. Manufacturers of firebrick, foundry refractories, hot tops, and silica refractories. Hazel-Atlas Glass Co. Francis C. Flint Wheeling, W. Va. Manufacturers of packers', preservers', and druggists' ware, fruit jars and caps, jelly glasses, tableware, tumblers, decorated ware, and metal closures. (1949) Heisey, A. H., & Co. T. Clarence Heisey Newark, Ohio Manufacturers of Hand-Wrought Diamond-H Crystal, hand-blown and hand-cast stemware and tumblers; rock crystal stemware; etched ware, fine table. glassware, candlesticks, candelabras and figurines; all-glass cocktail shakers; quality glassware for hotels, restaurants, institu tions; everything for table and home. Higman, John W., Co. Robert J. Stone 24 State St., New York 4, N. Y. Importers of English china clays and English ball clays for all branches of the ceramic and paper industries. Manufacturers of Superundum silicon carbide and Oxalum aluminum oxide for the refractory and abrasive industries; also Hitex grinding cubes and mill-lining blocks. Im porters of Danish flint grinding pebbles and Belgian and Swedish silex lining blocks. Hommel, O., Co. E. M. Hommel 209 4th Ave., Pittsburgh 30, Pa. Makers of ceramic colors for art pottery, china, and tile; body and glaze stains; colors for glass (acid-, alkali-, and sulfide-resisting); liquid bright gold and burnish gold; porcelain enamel frit, coloring oxides and clays; chemicals for glasshouses and potteries; pebble grinding mills, por celain balls, and brick; aluminum, bronze and other metal powders. Service staff available. Houze, L. J., Convex Glass Co. Armand L. Houze, Sr. Point Marion, Pa. Manufacturers of micoquille and coquille goggle lenses and bent blanks; microscopic cover glass; welding glass; flashed sheet glass for X-ray and radar equipment; colored sheet glass for filters and signal equipment; aviation com pass bowls and Mirror blanks; Fresnel lenses; pressedglass specialties; lamp parts; and convex glass shapes. Hufford Machine Works, Inc. J. A. Helget 207 N. Broadway, Redondo Beach, Calif. Manufacturers of hydraulic automatic and manually operated tile presses ranging in size from 10- to 165-ton capacity. Hull, A. E., Pottery Co., Inc. Gerald F. Watts Crooksville, Ohio Producers of nationally advertised art pottery and kitchen ware in the medium- and low-priced field. Ware is avail able for delivery on a 30- to 45-day basis. Humphreys Mfg. Co. W. G. Moore 201 E. Fifth St., Mansfield, Ohio Manufacturers of sanitaryware. Illinois Clay Products Co. Otis L. Jones 214 Barber Bldg., Joliet, 111. Producers of Goose Lake plastic fire clays and firebrick and Therm-O-Flake high-temperature insulation products; specialists in bond clays for foundry requirements. Imperial Glass Corp. C. J. Uhrmann Bellaire, Ohio Established in 1903, this company manufacturers the nationally famous handmade Candlewick and Cape Cod crystal tableware; continuous, day-tank, and pot melting; 650 employees; nationwide and export trade. Indiana Glass Co. Charles L. Gaunt Dunkirk, Ind. Makers of a line of machine- and hand-made tableware and lenses, including ruby automobile lenses and spot lights; hand-made tableware, soda fountain, and barware; vaporproof globes, refrigerator trays, and mixing bowls. Specialists in special mould work. Industrial Ceramic Products, Inc. W. E. Cramer 965 W. Fifth Ave., Columbus 12, Ohio Manufacturers of refractory specialties, pin stilts, and cone plaques. Pins are made by a new improved patented process insuring proper contact points. Pins packed in cartons or barrels. I 306 American Ceramic Society--Directory of Corporation Members Industrias Reunidas F. Matarazzo S.A. F. Matarazzo Brazil Export (Corp., 50 Broadway, New York 4, N. Y. Manufacturers i of semivitreous dinnerware, wall tile, sanitaryware, mosaic paving tile, and anti-acid stoneware under the trade mark I.R.F.M. Two factories equipped with tunnel kilns and automatic machinery. Institut du Verfe Bernard Long 34 rue Michel-Ange, Paris (16) France Society devoted to the Glass Industry and having three main activities: research, control, and documentation. The Information Center publishes the review Verres el Refractaires containing original papers and abstracts of French and foreign papers. International Clay Machinery Co. R. H. McElroy 11451 Bolander Ave., Dayton 1, Ohio Manufactures of Vac-Aire pottery pug mills and heavy clay product extrusion machines; laboratory Vac-Aire experimental machines; complete clayworking equip ment for brick, Stile, and pottery, including kiln cars. Ironton Fire Brick Co. E. F. Myers 1112 Graham Building, P. O. Box 4728, Jacksonville 1, i Fla. This company; has served the metallurgical, chemical, power plant, coke, and glass industries, as well as a number of. railroads, for more than 32 years with high-quality Kentucky clay refractories; also refractory cements, plastic refractories, and siliceous ramming refractories; general offices, 'Ironton, Ohio. Jackson Vitrified China Co. Philip R. Distillator ! Falls Creek, Pa. Manufacturers! of dinnerware in sets and open stock for home use, using the trade name Royal Jackson, and hotel and institutional ware under the brand names Jackson and Jactan. 1 Johns-Manville Sales Corp. J. C. Crawford, Jr. 22 East 40th St., New York 16, N. Y. Producers of [insulating firebrick, refractory products, insulating blocks, and pipe covering; other insulating ma terials for all temperatures and service conditions; build ing materials;' packings; friction materials; Transite pipe; fillers, and filter aids. Services of contracting organizations a!re available to apply insulation. Jones Metal Products Co. Frank E. Jones i West Lafayette, Ohio Manufacturers' of porcelain on steel enameled hospital and surgical ware and industrial lighting reflectors and flood lights. ; Jova Brick Works j Roseton, N. Y. Producers of common brick. J. L. Jova Kentucky Clay Mining Co. W. J. Watkins Mayfield, Ky. Suppliers for the past 30 years of ball clays, sagger clays, and wad clays to leading plants in the United States, Canada and Mexico; ceramic engineer available for con sultation. Kentucky-Tenlnessee Clay Co., Inc. R. C. Meeker 807 City Savings Bldg., Alliance, Ohio Miners and shippers of ball, sagger, wad, enamel, and plastic fire clays; numerous grades are produced from mines in West!Kentucky, West Tennessee, and Mississippi; available in lump, disintegrated, and air-floated form. Kimble Glass [Division, Owens- H. R. Black Illinois Glass Co. j 2626 Dorr St., Toledo, Ohio Kimble Glass[Division, Owens- Kenneth M. Henry Illinois Glass Co. ! Vineland, N. J. Manufacturers of glass containers for chemical dairy. clinical, and pharmaceutical use; laboratory glasswar rods; tubing. e> Knight, Maurice A. M. A. Knight t Box 111, Akron 9, Ohio ' -*r- Manufacturers of acid- and alkali-proof chemical equi ment; full line of chemical stoneware items such as pipin' valves, towers, and large acid jars; functional equipm^f.' for specific uses such as acid absorbers, gas coolers anH washers, pickling tanks, and complete acid plants- ' ai, make several types of synthetic resins, paints, and center,*0 for corrosive service. Brand names: Knight-Ware Pyroflex, Permanite, Sealon. e,_ Knowles, Edwin M., China Co. J. W. Hepplewh;* Newell, W. Va. lte Manufacturers of semivitreous dinnerware and cookin ware in four different shapes, both in white and colored glazes and decorated patterns; cooking ware is known a* Knowles Utility Ware. Knox Glass Associates, Inc. R. R. Underwood Knox, Pa. Suppliers of glass containers in amber and flint glass in all sizes up to and including gallons; Affiliated manufacturing plants are located at Knox, Marienville, Oil City, Parkers Landing, Sheffield, and Pittsburgh, Pa.; Lincoln, 111 Jackson, Miss.; Denver, Colo.; and Palestine, Tex. ' ' Knox Glass Bottle Co. R. K. Webb Knox, Pa. Manufacturers of a general line of glass containers in the Knox organization.. Kohler Company Carl J. Kohler Kohler, Wis. Manufacturers of cast-iron plumbing ware, vitreous china plumbing ware, closet seats, brass plumbing fittings, and electric generating sets. Kolene Corporation .J. H. Shoemaker 3105 E. Grand Blvd., Room 217, Detroit 2, Mich. Suppliers of a process for preparing ferrous metals for applying ceramic coatings; one process for rolled stock another for scaled, rusted, or cast stock; fewer operations and less space are required than for conventional cleaning operations. Kopp Glass, Inc. C. E. Leberknight Box 8255, Swissvale, Pittsburgh 18, Pa. Producers of hand-pressed and blown ware to customer specifications; glass for railroad, traffic, and military signaling devices; heat-resisting and colored glassware for floodlighting and airplane and airport equipment; visible absorbing ultraviolet and infrared transmitting glasses; special items for stage and display lighting. Koppers Co., Inc., Research Dept Karl D. Ulmer Koppers Bldg., Pittsburgh 19, Pa. Designers, builders, and operators of by 'product-coke, gas, chemical, iron, and steel plants; producers of pig iron, coke, coal chemicals, including tar products and numerous derivatives; plastics; wood preservative; poles, ties, other timber products; heavy machine-work; piston rings; airplane propellers. Kraftile Company C. W. Kraft Niles, Calif. Manufacturers of structural clay products and acid brick; largest producers of glazed structural wall units in the West; headquarters for acid-proof floor and tank instal lations engineered to fit the job; distributors of special construction products Kyanite Mining Corp. Gene Dixon Cullen, Va. Producers, for general sale, of kyanite and mullite in --35, -- 48, --100, and --200-mesh grain sizes. Kyanite is recovered by flotation from quartz-kyanite schists- Mullite is produced by calcination of the raw kyanite. .. Vol. 28, No. 8 American Ceramic Society--Directory of Corporation Members 307 Laboratotirio Quimico National Jorge Ancizar-Sordo Ministerio de Minas y Petroleos j Apartado 2577, Bogota, Colombia, S. A. rgclede-Christy Co. W. W. Shipley ; 1711 Ambassador Building, St. Louis 1, Mo. Founded in 1844, manufacturers of a complete line of fire-clay refractories, including firebrick, special shapes, e|ass 'house refractories, arch and wall tile, refractory specialties, and vitrified clay products. TaoP Insulator Co., Inc. K. E. Stettinius TM| Le Roy, N. Y. Manufacturers of Lapp vitreous porcelains for power transmission, radio, electronic, and chemical industries; complete associated assemblies; feldspathic and steatite ceramics and others especially compounded for the in tended application. tatchford Marble Glass Co. W. R. Bennett Box 4707, Florence Branch, Los Angeles 1, Calif. Manufacturers of glass jars and bottles for all purposes from !4-oz. to gallon capacity, inclusive; made in flint, green, and amber colors. Taughlm, Homer, China Co. Joseph Wells I Newell, W. Va. Manufacturers of Fiesta, Harlequin, Jubilee, and Riviera ware in colored glazes; decorated Kitchen Kraft cooking ware;' eggshell semivitreous chinaware in the regular dinnerware lines. tee Clay Products Co., Inc. Martin S. Bowne i Clearfield, Ky. Manufacturers of the usual line of sewer-pipe products; also firebrick and drain tile. Shippers of high-alumina clay for the manufacture of aluminum sulfate and flint clay for firebrick. Libbey-Owens-Ford Glass Co. George B. Watkins 1701 East Broadway, Toledo, Ohio One of the world's largest manufacturers of flat glass, in cluding Thermopane insulating glass, Vitrolite structural glass, Tuf-flex or tempered glass, plate, window, heat absorbing, bullet-resisting, and automobile and aircraft safety glasses. Locke, Inc. E. M. Skipper Box 57, Baltimore 3, Md. Manufacturers and distributors of "clayramics" for elec trical, thermal, mechanical, and chemical applications; power insulators, hardware, and associated materials; radio' and electronic insulators; telephone and telegraph insulators; chemical porcelain and pipe; mill balls and linings; special "clayramic" bodies and designs. i Logan Clay Products Co. E. K. Sheffield i Logan, Ohio Manufacturers of clay sewer pipe, flue lining, and kindred products. I Louisville Fire Brick Works, Inc. E. W. Ernst | 4554 Louisville Ave., Louisville 9, Ky. Manufacturers of a complete line of refractories using the famous Carter County, Ky., clays; producing plants located at Louisville, Ky., and Grahn, Carter County, Ky. Louthan Mfg. Co. C. W. Gerster ; East Liverpool, Ohio Manufacturers of steatite, refractory, and electrical por celain as follows: gas backwalls and radiants; electrical- appliance porcelain, steatite resistor tubes, steatite pressed parts; zircon porcelain; pins, stilts, firing racks, and setters. Mansfield Sanitary Pottery, Inc. P. E. Draper Perrysville, Ohio Manufacturers of Mansfield quality vitreous china and brass plumbing fixtures. (1949) Maryland Glass Corp. L. C. Roche 2147-53 Wicomico St., Baltimore 30, Md. Manufacturers of blue and flint-glass containers for the perfume, pharmaceutical, and food-packing industries; all operations are fully automatic. Mason City Brick & Tile Co. C. F. Garland Mason City, Iowa Manufacturers of structural clay tile, including smooth and textured face tile, backup, partition, and floor tile; radial chimney brick; common brick; face brick; 4- by 12-inch drain tile; silo block and staves, and mortar mix. Maxson, Elwyn L. Elwyn L. Maxson 1208 Isabel Street, Burbank, Calif. Distributors of pottery clays; ceramic colors; slabs, setters, and saggers; standard pyrometric cones; Frantz Ferro- Filters; Lakefield nepheline syenite. McCoy, Nelson, Pottery Co. Nelson McCoy Melick Roseville, Ohio Manufacturers of popular-priced art pottery consisting of vases, jardinieres, and flowerpots; several items of under glaze decoration. Also utility items such as cookie,jars, pitchers, bean pots, pet feeders, teapots, and sugars and creamers, McHose, L. H., Inc. M. M. McHose ! Box 47, Perth Amboy, N. J. For more than 100 years L. H. McHose, Inc. and the Such Clay Co. have produced crude, terra cotta, fire and sagger clays; special sagger mixture for high and low temperatures; pulverizing plant, laboratory service, and engineering department. McKee Glass Co. Gerald Terrill Jeannette, Pa. Manufacturers of heat-resisting Glasbake, ovenware. Range-tec top-of-stove ware, Lumakee crystal and opal table and kitchenware and industrial ware. Machine and hand fabricating, decorating and special finishing facilities for standard and special mold work. McLain Fire Brick Co. W. A. Turner 1239 Gulf Bidg., Pittsburgh 19, Pa. Manufacturers of quality refractories. Specialists in pour ing-pit refractories, including Dando dry-press and Cham pion wire-cut ladle brick, McLain refractory :hot top sleeves, nozzles, runners, refractory ingot-mold plugs, and fire clay. Metal & Thermit Corporation. George C. Betz 120 Broadway, New York 5, N. Y. Manufacturers of a complete line of ceramic opacifiers, including sodium antimonate, antimony oxide, and zircon for enamels and tin oxide and Ultrox zirconium opacifier for use in ceramic glazes; laboratory staff available for consultation in the use of opacifiers. Metalloy Corporation Walter M. Fenton 2560 Rand Tower, Minneapolis 2, Minn. Specialists in lithium compounds. Several of these lithium compounds have been developed expressly for ceramic use, particularly in the field of low-temperature enamels and glazes. Such compounds as lithium manganite, cobaltite, silicate, and titanate were introduced by this company. Mexico Refractories Co. C. A. Smith Mexico, Mo. Producers of a complete line of high-quality Missouri re fractories: high-alumina, superduty, high heat-duty, and intermediate heat-duty firebrick; insulating firebrick; high-temperature bonding mortars, cements, castables, and coating materials; plastic firebrick; insulating fire brick cements; silica-base and chrome-base cements. Mississippi Glass Co. R. D. Humphreys 200 Fifth Ave., New York 10, N. Y. Manufacturers of plain and wired configurated and corru gated glass, and heat-absorbing glass. Brand names are Mississippi, Misco, and Protex. . ."I- :v. ' ' i >.r : j: .; ' I ?: '' - I ; v-; | 308 American Ceramic Society--Directory of Corporation Members Moler Products, Ltd., Hythe Works Colchester, Essex, England Manufacturers of a range of heat insulating bricks, slabs, aggregates and powders, suitable for temperatures up to 1350C. Comprising Fosalsil, Diatomite products, Medial insulating refractories, and Super H. T. Moore Enameling and Mfg. Co. Walter B. Moore West Lafayette, Ohio Producers of Bettsy Ann porcelain enameled utensils. Hydraulically extruded, bottoms are several times heavier than sidewalls, and are left bare for high conductivity. Features of this line are covered by patents. Moore & Munger , Murray Rushmore 33 Rector St., New York 6, N. Y. Since 1892 importers of china clay from Cornwall, Eng land, and ball clay from pits in Devonshire, produced largely by the same families. Morton Pottery Co. William Rapp Morton, 111. Manufacturers of art pottery and decorative specialties. Mosaic Tile Co. R. E. Jordan Zanesville, Ohio Manufacturers of ceramic wall and floor tile for all archi tectural and decorative purposes. Line comprised of glazed wall tile, unglazed ceramic mosaics, Granitex, and faience. Mount Clemens Pottery Co. Charles E. Doll Mount Clemens, Mich. Dinnerware manufacturers. Mullite Refractories Co. Charles W. Fyfe : Shelton, Conn. Manufacture superrefractories, special shapes, standard brick and cements of calcined kyanite, used by steel, glass, and allied industries where high softening point, good spalling resistance, and strength under load are required. Sold under trade name Shamva. National Ceramic Company J. A. Schermerhom 500 Southard St., Trenton 2, N. J. Manufacturers of steatite insulation, electrical porcelain, and small bathroom fixtures. National Engineering Co. ' E. A. Peterson 549 W. Washington Blvd., Chicago 6, 111. Manufacturers of the Simpson intensive mixer and auxil iary equipment. The Simpson mixer is a muller-type mix ing device and is widely used in dry- and wet-mixing proc esses in every branch of the ceramic industry, particularly electrical porcelain, tile, pottery, and refractories. National Fireproofing Corp. R. A. Shipley 202 E. Ohio St., Pittsburgh 12, Pa. Manufacturers of ceramic, salt, and unglazed facing tile, partitions, loadbearing wall, floor and back-up tile, flue lining, silo, bin and drain tile, underdrain blocks, sewer pipe, chimney blocks, face and common brick, flat arch and wide center floor tile, column and girder covering, clay conduit, raggle block, and filter tile. Also chemical tank tile and stove liners.' National Industrial Sand Assn. V. P. Aheara 1325 E Street, N. W., Washington 4, D. C. A national association of the producers of sand for indus trial purposes. National Lead Company Alexander Stewart 111 Broadway, New York 6, N. Y. Producers of a full line of lead products for the ceramic industry; litharge, red lead, white lead, and lead silicate frits (monosilicate and bisilicate) for glass, raw glazes, and glaze and enamel frits. ! National Lime and Stone Co. L. G. Love First National Bldg., Findlay, Ohio Large producers at! Carey, Ohio, of high-quality burned dolomitic lime and raw dolomite for glass manufacturing and dolomitic hydrated lime for neutralizing acid wastes* Plants located on three railroads which provide excellent shipping facilities. National Mortar & Supply Company E. F. Kearins 1807 First National Bank Bldg., Pittsburgh 22, .Pa. Manufacturers, producers, and suppliers of dolomitic line and limestone products to the industrial, construction, and agricultural fields. Specialists in a low-iron-content flm_ ing lime for the glassmaking industry. National Refractories Co., Inc. R. A. Hitchins 225 S. Fifteenth St., Philadelphia 2, Pa. Manufacturers of fire-clay brick and specialty refractory products at a subsidiary, the Big Savage Refractories Corp., Frostburg, Md., and silica brick at Van Dyke, Pa Sales agents for products of the Mexico Refractories Co and other brick manufacturers. National Research Corp. Philip Godley 70 Memorial Drive, Cambridge, 42, Mass. Industrial research specialists; makers of high-vacuum equipment National Sales Corp. Frank Koch 31-35 E. Thirteenth St., Cincinnati 10, Ohio Manufacturers of filter press cloths for the ceramic and chemical industry; importers of french flint grinding pebbles; distributors of pulverized and lump Georgia kaolin, quartzite' grinding cubes and mill liners, and bentonite. National Sanitary Co., Division of Erwin Sohn Eljer Co. Salem, Ohio Producers of enameled cast-iron plumbing fixtures and brass goods. Newbold General Refractories, Ltd. 26-30 Clarence St., Sydney, N.S.W., Australia Chief products:, silica, high alumina, kyanite, silicon carbide, chrome, magnesite, insulation refractories and cements; also assay ware and graphite crucibles. Works at Waratah, Port Kembla, Thirroul and Coniston, NewSouth Wales, Australia. New Castle Refractories Co. R. W. Rowland New Castle, Pa. Manufacturers in six plants of a complete line of kiln furniture including saggers, tile setters, slabs, dish setters, etc.; hot tops, fire brick, insulating brick for industrial furnaces, and special refractories of silicon carbide, silli- manite, and mullite. New Jersey Porcelain Co., Inc. J. M. Gilfillan New York Ave. and Plum St., Trenton 5, N. J. Established in 1920, this company manufactures electrical porcelain specialties and bathroom accessories under the brand names Monarch and Champion in a modem plant with two oil-burning tunnel kilns- Niles Fire Brick Co. J. R. T. Clingan 165 E. Park Ave., Niles, Ohio Established in 1872, this company makes silica brick from quartz, silica conglomerate and silica cements; high-heat duty fire-clay brick from Pennsylvania and Kentucky clays, and ground fire clays; blast furnace and stove linings. North American Refractories Co. E. M. Weinfurtner National City Bank Bldg., Cleveland 14, Ohio Manufacturers of all types of fire-clay and silica refrac- tones, including high-alumina and insulating firebrick; also a complete series of mortars, plastics, ramming mixes, castable refractories, and raw and calcined fire clay and ganister rock. North Carolina Feldspar Corp. W. F. Deneen Erwin, Tenn. Miners and grinders of feldspar for the ceramic industry either of the high-potash or the high-soda variety in any desired mesh;, also serve glass plants with any mesh or quality, including flotation feldspar. Vol. 28, No. S . > ,- j , | : j \ northwestern Glass * 5801 E. Ma Manufacturers of a gjnt and amber gla purposes; two fumai northwestern Terra 1 1750 Wrigl Manufacturers of ar Norton Company producers of grind manufacturers of prt bottle labeling mac special refractories f tory laboratory ware processes involving ; Ohio Brass Co. Manufacturers of wc voltage transmission stations; porcelain ei for electrical appars sulators for military Ohio Clay Co. Box 1 Manufacturers of coi Ohio Hydrate & Sup; Producers of dolomit g. by 30-mesh, 16hydrate and superfin by 30-mesh, 16- by carbonate. Old Hickory Clay Co; Box Miners and shippers c and plastic fire clayj form according to s] Ky- Onondaga Pottery Co 1858 W. Fa> Manufacturers of Sy: nonabsorbent ware us in decorated, plain-tir Orefraction, Inc. 7425 Thom; Manufacturers of thi ramie and electrical, ] mesh, and 400 mesh in granular and miller of Orfrax refractory w mortars and casting si Orton, Edward, Jr., C Foundation 1445 Sump A testamentary trust cones in large and sn Excess income from c laboratories of the Fo the benefit of the indu Owens-Coming Fiber) Manufacturers of glamineral wool, filter ar for thermal and acou: trical insulation, pla; service fabrics. Horn m Newark, Ohio; Ash ^ City, Kans.; Santa ark, Ohio, and Ashton, arins P litne . and flux- ihins tory Co. dley trial :nt. ^och d ding 'rgia and >ohn icon and irks 'Jew and kiln ers, rial rilli- l^i ical the iant gan om acck; sen try my or American Ceramic Society--Directory of Corporation Members 309 rthwestem Glass Company Edward S. Campbell 5801 E. Marginal Way, Seattle 4, Wash. . u{acturers of a complete line of jars and bottles in Owens-Illinois Glass Co. W. A. Mahaffy 601 36th Ave., Oakland 1, Calif. Manufacturers of a complete line of glass containers. j"8? and amber glass for foods, beverages, and general Owens-Illinois Glass Co. E. W. Summers p^poses; two furnaces. General Engineering Dept., Alton, 111. rthwestem Terra Cotta Co. Burnette Purcell 1750 Wrightwood Ave., Chicago 14, 111. Manufacturers * architectural terra cotta. Makers of Duraglas containers, wide and narrow mouth, for food products, pharmaceuticals, prescriptions, chemi cals, proprietary items, milk, cosmetics, beverages, wine, and liquor; tumblers and crystal; structural block; iffnrton Company O. J. Whittemore, Jr. Hemingray insulators; corrugated fiber containers; wood Worcester 6, Mass. cases; metal and plastic closures; molded products. producers of grinding wheels and abrasive products; Manufacturers of precision grinding and lapping machines, F'Hje labeling machines, ceramic surface plates, and soecial refractories for use at high temperatures; refracffLy laboratory ware and porous media for commercial processes involving aeration and filtration. Pacific Clay Products Roy Lacy Box 145, Station A, Los Angeles 31, Calif. Manufacturers of glazed floor and wall tile, sewer pipe, firebrick, fire clay, drain tile, stoneware, electrical conduit, ceramicweld clay pipe, hollow building tile, quarry tile, flue lining, chimney pipe, architectural terra cotta, and Ohio Brass Co. J. J. Taylor u Barberton, Ohio Manufacturers of wet-ware porcelain insulators for high- voltage transmission lines, distribution lines, and sub- nations ; porcelain entrance bushings and switch insulators for electrical1 apparatus; radio and communication in sulators for military use. ceramic veneers. Pacific Coast Borax Co. M. H. Pickard 51 Madison Ave., New York 10, N. Y. Manufacturers and distributors of borax, boric acid, anhydrous borax, boric anhydride (anhydrous boric acid), sodium borate ore concentrates (anhydrous rasorite and rasorite special concentrates) for the glass and ceramic industries. Bulletins and technical service offered. Ohio Clay Co. George W. Denison Paden City Pottery Co. Merrill C. Sondles J Box 1776, Cleveland 5, Ohio Paden City, West Virginia Manufacturers of common and facing brick. Manufacturers of three lines of semivitreous dinnerware l Ohio Hydrate & Supply Co. A. H. Nieman Woodville, Ohio Producers of dolomitic lime in the following forms: lump, g_ by 30-mesh, 16-mesh, dust ground burnt regular hydrate and superfine hydrate; kiln dried dolomite, 10- by 30-mesh, 16- by 120-mesh, filler dust, and 300-mesh in sets and open stock: (1) Shenandoah Ware, underglaze decalcomania in brilliant, colorful floral decorations and four solid colored glazes; (2) Tu-tone ware, wide underglaze ivory shoulder and plain ivory, with gold lines, stamps, and floral border decalcomania; and (3) Trend Ware, square shape in solid colored glazes and floral decorations. carbonate. Page-Madden Co., Inc. Jesse F. Madden 76-96 Second St., Mineola, N. Y. Old Hickory Clay Company L. F. Powell Manufacturers of whitewares, with facilities for dry-press Box 271, Paducah, Ky. ing, extruding, and casting. Superior porcelain, enamel Miners and shippers of high-quality Kentucky ball, sagger, guides, glass rods and syphons, glass pitons and dents; and plastic fire clays furnished in crude and air-floated other supplies for the textile trade. form according to specifications. Mines near Mayfield, Paper Makers Importing Co., Inc. Charles Brian Ky. Room 504, Drake Bldg., Easton, Pa. For 60 years im Onondaga Pottery Co. R. H. Pass porters of fine English china and ball clays. 1858 W. Fayette St., Syracuse 4, N. Y. Pass & Seymour, Inc. R. H. Pass Manufacturers of Syracuse china, a thoroughly vitrified, Solvay Station, Syracuse 9, N. Y. nonabsorbent .ware used in public eating places and homes, . Since 1890, manufacturers of electrical wiring devices in decorated, plain-tinted, and white. consisting of switches, lamp sockets, power outlets, etc.; Orefraction, Inc. John F. Hunt 7425 Thomas Blvd., Pittsburgh 8, Pa. Manufacturers of three grades of zircon, technical, ce ramic and electrical, produced in granular, 140 mesh, 200 mesh, and 400 mesh sizes; alloy and welding rod rutile in granular and miller forms, and ceramic rutiles. Makers of Orfrax refractory washes, Orelectric cements, refractory mortars and casting slips. Purity grinding. also of porcelain electrical fixtures and special electrical products made to customer needs; during the war de veloped and produced new types of land mines and fuses for the Ordnance Department; also produced for the Navy special electrical fittings for warships. Pearson, E. J. & J., Ltd. C. W. Thomas Stourbridge, England Established in 1860 to manufacture fire-clay, silicious, and high-alumina refractories of every description for all types Orton, Edward, Jr., Ceramic J. L. Carruthers Foundation 1445 Summit St., Columbis 1, Ohio of industrial furnaces, by the casting, dry-press, stiffplastic, pneumatic, and hand-molding processes. Five associated companies. A testamentary trust manufacturing standard pyrometric cones in large and small sizes from cone 022 to cone 42. Excess income from cone sales is used for research in the laboratories of the Foundation and in various schools for the benefit of the industry. Pemco Corporation Richard Turk 5601 Eastern Ave., Baltimore 24, Md. Manufacturers of porcelain enamel frits and clays; ce ramic glaze frits; colors for enamels, glazes, glass, plastics, and paints; special chemicals for the industry; plant and Owens-Coming Fiberglas Corp. A. C. Siefert Newark, Ohio Manufacturers of glass in fiber or filament form (glass mineral wool, filter and mat products, and glass textiles) for thermal and acoustical insulation, air filtration, elec trical insulation, plastics reinforcement, and industrial *rvice fabrics. Home office in Toledo, Ohio; factories laboratory layout and engineering service on request. Pennsylvania Pulverizing Co. William J. Woods Box 587, Lewistown, Pa. Producers of flint which over the past forty years has become the standard of quality for American ceramic industries; plants located at Mapleton, Pa., Hancock, W. Va., and Newport, N. J. in Newark, Ohio; Ashton, R. I.; Huntingdon, Pa.; Kan Pennsylvania Salt Mfg. Co. R. S. Roeller sas City, Kans.; Santa Clara, Calif. Laboratories in New , 1000 Widener Bldg., Philadelphia 7, Pa. ark, Ohio, and Ashton, R. I. Manufacturers of acids, pickling agents, acid and alkaline .1 Si $ Vi- I-* j ' i ; `i l :'l f-i J'm I. `.V~ ) % . ' ? ; , ;;; 'f. i' I '. ' . i. r- 310 American Ceramic Society--Directory of Corporation Members cleaners, aluminum hydrate, calcined alumina, and Kryolith (from natural Greenland cryolite ore) for use in the ceramic industry.' Pettinos, George F., Inc. George F. Pettinos, Sr. 1206 Locust St., Philadelphia 7, Pa. Pioneers in mining, importing, and refining of graphite; miners and producers of foundry sands, glass sands, indus trial sands, filter'and sandblast sands; foundry supplies; high-temperature cements and insulating cements; pul verized. and crude clay; massive quartzite. Plants at Millville, Manumuskin, Grenloch, Mt. Holley, Williams- town Jet., and Penbryn, N. J., and Honey Brook and Spring City, Pa. , Pfaudler Co. ' S. W. McCann 1000 West Ave., Rochester 3, N. Y. Engineers and fabricators of corrosion-resistant process equipment, consisting of glass-lined steel, stainless steels, and other metal alloys, including clad materials. mixers and the Amold-Creager and Martin line of br' u making machinery; plate and pipe work; refining ea ' ment, asphalt plants, rotary kilns and driers, furna^ industrial waste treatment plants and concrete f0r^?' Fabricating, foundry, and machine-shop facilities. I1ns' Potters Supply Co. William W. t--,- ' East Liverpool, Ohio r'VlI> Manufacturers of kiln room supplies. Products: pott pins, stilts, spurs, and thimbles. Distributors of domes?8 whiting, bitstone, modeling clay. estlc Precision Grinding Wheel Co., Inc. Roland T. pi. 8301 TorresdaleAve., Philadelphia 36, Pa. *** Established in 1920 to manufacture a complete line vitrified and organic bonded abrasive products, of out standing quality of performance, such as hi'gh-sp^j snagging wheels, and "cavity clearance" wheels f** tungsten carbide tools. 01 Phoenix Brick Yard A. R. Campbell 1814 South Seventh Ave., Phoenix, Ariz. Manufacturers of'common and face brick, structural tile, Promat Division, Poor & Co. A. E. Chest 851 S. Market St., Waukegan, 111. w Ceramic and electrometallurgical research. and roof tile. All ware burned in a continuous tunnel kiln # except common brick, which are burned in field kilns. Puerto Rico Clay Products Corp. David S. Ramin. Distributors in Arizona for Los Angeles Clay Products Box 2672, San Juan, Puerto Rico * Co. and Kraftile Co. Manufacturers of vitreous china sanitary ware, wall tile face brick, and structural clay tile. ' Pierce Glass Company J. G. Bozzo Port Allegany, Pa. Purinton Pottery Co. B. S. Purinton Manufacturers ofI glass containers for the food arid drug Shippenville, Pa. , trade, chemical and household products, and cosmetics Free-brush decorations on tableware, containers for pack and toiletries. ing, and miscellaneous items. Pittsburgh Coming Corp. Walter D. Ford j Port Allegany, Pa. Manufacturers of Istructural PC glass blocks of three basic sizes in fourteen different patterns. Also manufacturers of PC Foamglas, a purely inorganic, permanent, multi cellular quality glass insulating material. Pittsburgh Plate Glass Co. C. E. Fulton Creighton, Pa. Manufacturers and distributors of plate, window, and structural glass; a full line of paints and varnishes; heavy chemicals including soda ash, caustic soda, and chlorine; paint and industrial brushes; plastics, including the Selectron series of polyester resins and CR-39 Allymer. Pittsburgh Plate Glass Co., R W. Miller Columbia Chemical Div. Barberton, Ohio Producers of Columbia soda ash, made to the most exact ing standards, which is especially suitable for the prepara tion of frit; also alkalis; service to customers through offices in principal cities and distributors in every market area. Polynesian Arts 1 Hugh H. Gantt i Mayfield, Ky. Manufacturers of unusual art pottery and fine chinaware. Porcelain Metals Corp. P. B. McBride Louisville 10, Ky. Manufacturers of porcelain enameled stampings, metal parts, and shapes to order; deep drawn, formed, rolled or stamped to close tolerances; fabricated and welded as semblies; desigri, engineering, tooling service; other specified finishes and stainless.steel shapes. Porcelain Products, Inc. John G. Loy Box 300, Findlay, Ohio Manufacturers of: a complete line of electrical porcelain insulators ranging from the smaller types for low-voltage house wiring.to high-voltage insulators for power transmis sion ; also a limited line of porcelain wiring devices. Posey Iron Works, Inc. Frank A. Fix Lancaster, Pa. Manufacturers of; Lancaster counter-current rapid batch Pyro Refractories Co. O. E Miller Oak Hill, Ohio Organized in 1909, this company manufactures standard refractories, special shapes, and refractory specialties con sisting of Ohio select first-quality brick of Sciotoville flint and second-quality brick of Lower Kittanning clay; also cements, castables, plastics, and ladle-lining material. Ramtite Company Louis J. Jacobs 2563 West 18th St., Chicago 8, 111. Manufacturers of Ramtite plastic refractory, Fracto-crete castable refractory, and Esso Bond high-temperature bonding mortar; engineering and construction depart ments design and erect solid and suspended-type walls and arches and economy boiler baffles. Remmey, Richard C., Son Co. G. Bickley Remmey Hedley St. and Delaware River, Philadelphia 37, Pa. Manufacturers of fire-clay, silicon carbide, semisilicon carbide, mullite (clay bonded), Crystalite (recrystallized mullite), alumina (clay bonded), and alumina (99% plus) refractories; plastic firebrick; high-temperature cement; fire clay; alumina oxide cement; and silicon carbide cement. Republic Stamping & Enameling Co. P. A. Mallonn Box 471, Canton 1, Ohio Manufacturers of porcelain enameled kitchenware. Republic Steel Corp. Burton Longwell 1424 Republic Bldg., Cleveland 1, Ohio Manufacturers of iron and steel products. Of particular interest to the ceramic industry are the following products: flat-rolled products including Toncan iron enameling sheets; alloy and stainless steels; bolts, nuts, and rivets; tubular products, and pig iron. Riddell, W. A., Corp., American W. H. Merkel Clay Machinery Division Bucyrus, Ohio Manufacturers of a complete line of clay machinery to produce brick or tile and other clay products, either under the stiffmud wire cut process or dry press. Engineenng department is available for customer service. Vol. 28, No. 8 A Robeson Process Co. 500 5th A\ producers of binding n industries. Rookwood Division, S; ^ Beech and Kenilw pounded in 1880, Ro raxoic artware and is i \jjderglaze decorated i standards of quality, Ljned this enviable r Roseville Pottery, In^ in business for more t ,,rtware and decorated 0f underglaze decorati items of utility value si Ross-Tacony Crucible Tacony, Manufacturers of cruci bonded types) for mt beads for pouring stee refractory cements. Royal China, Inc. Manufacturers of hif for all classes of trade. Royal Copenhagen Poi Manufactory, Inc. Copenhagen F Founded 1779. Prod artistic stoneware, dim bagen underglaze de monumental ceramic ' Rustless Iron Co., Ltd. Trico Woi Vitreous enamel finish ers, comprising ranges, mg equipment, refrigei of similar articles for d Salem China Co. A medium-sized, well manufacture of mediu tionally advertised, employment over a lot Seaporcel Porcelain M 28-20 Borden A Manufacturers of art enamelware. Shenango Pottery Co. N Producers of Rimrol 1 and Castleton and Ha Simonds Worden Whii N. Summit St. ant Manufacturers of grim mill engine bars and pi S. I. R. M. A. Marg' Precision manufacture alumina brick. Natur Silica brick for coke ovt Blocks for glass ovens, magnesite refractories. Smith, A. O., Corporat 3533 North % Manufacturers of *a b consumer products su (1949) American Ceramic Society--Directory of Corporation Members 311 o/ibeson Process Co. 'Asgeir Riis *oD 500 5th Ave. New York 18, N. Y. _jucers of binding materials for the ceramic and foundry ^ustries. ; 0n0kwood Division, Sperti, Inc. Ralph A. Lostro Beech and Kenilworth Aves., Cincinnati 12, Ohio cnunded in ,1880, Rookwood Pottery produces fine ce- artware and is noted the world over for individual *jerglaze decorated items; pledged to maintain the high Godards of quality, craftsmanship, and beauty that jp-jed this enviable reputation for Rookwood. o/weville Pottery, Inc. Robert P. Windisch ZanesviUe, Ohio in business for more than fifty years as manufacturers of rtware and decorated utility ware; major output consists { underglaze decorated art pottery and- some decorated jtems of utility value such as teapots and pitchers. soss-Tacony Crucible Co. A. M. Johnson Tacony, Philadelphia 35, Pa. Manufacturers of crucibles (both clay graphite and carbon- bonded types) for melting metals and graphite stopper beads for pouring steel; also special refractory shapes and refractory cements. pipe, oil-well casing, welding electrodes and equipment, pressure vessels, heat exchangers, glass-lined storage tanks and automatic storage water heaters. Smith & Stone, Ltd. W. B. Ford Georgetown, Ontario, Canada Established in 1920, manufacturers of porcelain insulation, both wet and dry, and porcelain moldings of all types; refractory porcelain, phenolic moldings, and a complete range of wiring devices. Socony-Vacuum Oil Co., Inc. J. C. Dean 26 Broadway, New York 4, N. Y. Manufacturers of a line of wax emulsions for use as binders in ceramic bodies, particularly those that are dry- pressed or have low clay content, and in ceramic glazes for greater handling strength and more uniform applica tion. f Solvay Process Div., Allied Chemical L. W. Peterson & Dye Corp. Syracuse-1, N. Y. Manufacturers of dense soda ash, calcined potassium car bonate, hydrated potassium carbonate, and ammonium bicarbonate used in glass and ceramics; technical consult ing service for the ceramic industries. onval China, Inc. B. L. Miller Sovereign Potters, Ltd. W. G. Pulkingham Sebring, Ohio Hamilton, Ontario, Canada I Manufacturers of high-grade semiporcelain dinnerware Producers of dinnerware under the trade name Sovereign. for all classes of trade. Spinks, H. C., Clay Co. R. B. Carothers Koval Copenhagen Porcelain Chr. Christensen 1000 1st National Bank Bldg., Cincinnati 2, Ohio Manufactory, Inc. Producers of the following ball, sagger, and wad clays: Copenhagen F., 45 Smallegade, Denmark Bandy Black ball clay. Bandy Tan ball clay, Black Charm Founded 1779. Producers of porcelain, earthenware, ball clay. Black and Tan wad clays. Buckskin ball clay. artistic stoneware, dinnerware and hotel porcelain, Copen Champion and Challenger ball clay, Gizmo ball clay, hagen underglaze decoration, artware, sculpture, and Gleason clay and Old Whittier ball clay. monumental ceramic works. Square D Company H. S. Freeman Rustless Iron Co., Ltd. H. Whitaker 6060 Rivard St., Detroit 11, Mich. Trico Works, Keighley, England Manufacturers of an extensive line of safety switches, Vitreous enamel-finish is applied to goods made by custom motor controls, circuit breakers, panel boards, switch ers, comprising ranges, gas and electric cookers and wash boards, bus duct, pressure, float, and vacuum switches; ing equipment, refrigerators, reflectors, and a wide variety circuit breakers for airplanes and special shockproof of similar articles for domestic use. switches and molded insulation. Salem China Co. F. W. McKee Salem, Ohio A medium-sized, well-modernized plant devoted to the manufacture1 of medium-priced dinnerware, which is na tionally advertised. A splendid reputation for steady employment over a long term of years. Seaporcel Porcelain Metals, Inc. M. Jesse Salton 28-20 Borden Ave., Long Island City, N. Y. Manufacturers of architectural and marine porcelain enamelware. Shenango Pottery Co. James M. Smith New Castle, Pa. Producers of Rimrol hotel and restaurant vitrified china and Castleton and Haviland dinnerware. Simonds Worden White Co. ' F. R. Henry N. Summit St. and Negley Place, Dayton 7, Ohio Manufacturers of grinding wheels, machine knives, paper mill engine bars and plates', and butcher tools. Standard Brick and Tile Corp. H. C. Kleymeyer Fourth and Vine Sts., Evansville 19, Ind. Manufacturers of shale and clay rough-texture and smooth face brick, ranging from red to gun metal; common brick; structural clay tile and farm drain tile. Distributors of glass block, firebrick, glazed brick and tile; buff and gray face brick. Standard Ultramarine Co. L. F. May Huntington 18, W. Va. Manufacturers of ultramarine blues, organic reds, iron blues, alkali blue toners and methyl violet toners, and blanc fixe (barium sulfate) for the paint and printing ink indus tries. Also soluble and acid blues for writing inks and laundry bluing. Stangl Pottery J. M. Stangl Trenton, N. J. A flexible, modem, two-tunnel kiln ceramic plant en^ gaged in the manufacture of earthenware, dinnerware, and quality art ware. Trade name Stangl. S. I. R. M. A. U. Guido Ringler Marghera, Venice, Italy Precision .manufacturers of chamotte brick and high- alumina brick. Natural sillimanite and light refractories. Silica brick for coke oven, Siemens-Martin and arc furnace. Blocks for glass ovens. Magnesite, chrome, and chrome-. Magnesite refractories. Star Porcelain Co. H. Collin Minton, Jr. Muirhead Ave., Trenton 9, N. J. Manufacturers of electrical porcelain, electrical refrac tories, low-loss steatite, and semisteatite by pressing, casting, turning, and extrusion; complete toolmaking and diemaking facilities and research laboratory for special insulating problems. Smith, A. O., Corporation W. A. Deringer 3533 North 27th St., Milwaukee 1, Wis. Manufacturers of a broad variety of capital goods and consumer products such, as automobile frames, gas-line Stark Brick Co. J. H. Stewart Box 230, Canton 1, Ohio Manufacturers of ceramic glazed, clear glazed, salt glazed and unglazed facing tile; glazed and unglazed standard 312 -American Ceramic Society--Directory of Corporation Members and heavy-duty floor brick; acid resisting brick and block. Trade names: Brictile, Tribric, Sanitary Floor Brick. Stauffer Chemical Co. G. W. Poland, Jr. 420 Lexington Ave., New York 17, N. Y. Manufacturers of borax, boric acid, anhydrous borax and borax glass; potassium nitrate, and sulfur; also other industrial chemicals such as sulfuric acid, chlorine, caustic soda, carbon bisulfide, carbon tetrachloride, silicon tetra chloride, tartaric acid, cream of tartar, tartar emetic, and insecticides and fungicides. Steele, J. C., & Sons, Inc. J. C. Steele, Jr. Statesville, N. C. For sixty years makers of clay-working machinery. Complete line 'of feeders, disintegrators, and crushers for feeding and preparing clay; pug mills, auger machines, de-airing extrusion machines, extrusion dies, and cutting machines for extrusion production of building brick, structural tile, and refractory products. Sterling China Co. W. T. Pomeroy East Liverpool, Ohio Manufacturers iof vitrified china tableware for hotels, restaurants, steamships, hospitals, and other institutions, also for the armed forces. Wide variety of decorations, decals, priHts, and line treatments, offered on three dif ferent bodies, white, tan, and ivory. Sterling Grinding Wheel Div., A. E. Tulk Cleveland Quarries Co. Tiffin, Ohio Manufacturers of artificial abrasive grinding wheels, brick, sticks, and specialties since 1885; vitrified, silicate, resin and shellac-bonded products for use on standard and high speed grinding machines of all types and makes. Steubenville Pottery Co. W. J. Mould Steubenville, Ohio Manufacturers of high-quality semivitreous tableware dis tributed by the leading china departments of the country and including the Monticello ware by Herman C. Kupper and the American Modern by Russell Wright. 1 Stillwater Clay Products Co. J. P. Duffy 3334 Prospect Ave., Cleveland 15, Ohio Manufacturers of vitrified clay pipe, Interlok wall coping, standard coping, flue lining, liner plates, artistic chimney tops, refractory hot tops, and tile conduit for heat dis tribution piping. Plants at Urichsville, Dennison, and Junction City, Ohio. Streator Brick Co. D. P. Ogden Streator, 111. Producers of shale and fire-clay face brick in smooth and rough textures; shale building brick, oversize brick, and packing-house floor brick; tunnel-kiln and periodic-kiln production facilities; annual capacity 50 million brick. Strong Manufacturing Co. T. F. Shaffer Sebring, Ohio Complete, manufacturing facilities for black shapes for both hollow ware and flatware; modem enameling equip ment for producing fluorescent reflectors, incandescent reflectors, refrigerator equipment and accessories (pans, doors, panels, etc.), contract job enameling. Structural Clay Products Institute Harry C. Plummer 1520 18th Street N. W., Washington, D. C. A national association ` of brick and tile manufacturers which represents the industry before Government offices and on committees of national technical organizations. Its principal activities consist of education, engineering and research, advertising, publicity, and public relations. Stupakoff Ceramic & Mfg. Co. Semon H. Stupakoff Latrobe, Pa. Mass producers of precision-made ceramic and related products for electronic, electrical, and other applications. Alumina, capacitor ceramics, cordierite, magnesia, por celain, steatite, temperature sensitive resistors, tita and zirconia; plain, metallized, and assembled.' Ko*118' glass hermetic seals. Distributors of Kovar in all f0Var" Sfimerbank Ankara, Turkey Bulent Bukt^ Sur Enamel & Stamping Works, Ltd. MMc 9, Middle Rd,, Entally, Calcutta, India' &Ur Established in 1918. Producers of household ware of kinds, hospital ware, sign plates, reflectors, table tops aa industrial acidproof containers. 1 an<* Surface Combustion Corp. Harvey c Wn 2375 Dorr St., Toledo 1, Ohio ' weUer Manufacturers of continuous annealing and decorat' lehrs, batch-type ovens, convexing and bending furnar special processing furnaces, continuous conveyer-tvS pottery decorating kilns, recuperative tanks for speril glasses; combustion engineering service. eaa` Swindell Brothers J. j teff . Bayard and Russell Sts., Baltimore, Md. nes Manufacturers of handmade and machine-made glass co tainers for foods, drugs, chemicals, pharmaceuticals nr* scriptions, wines, whiskies, toilets, perfumes, and cosmetic*" Swindell-Dressler Corp. Philip Drei. Box 1888, Pittsburgh 30, Pa. . ler Engineers and manufacturers; designers and builders of every kind of direct-fired, semi-muffle and full muffle circular and straight tunnel kiln, operating at tempera' tures from decorating to cone 32, fuel fired or electric heated; car, roller-hearth, and walking-beam conveyor types; recirculating radiant gas tube installations. Sylvania Electric Products, Inc. B. S. Ellefson 208-20 Cross Island Parkway, Bayside, Long Island ' N. Y. Manufacturers of radio receiving tubes, cathode-ray tubes transmitting tubes, incandescent lamps, fluorescent lamps and fixtures, fluorescent powders, tungsten powder and rod, tube parts, wire welds, and electronic equipment Research and Development laboratories at Flushing jjay- side, and Kew Gardens, New York; manufacturing plants and engineering laboratories in five states; main offices at 500 Fifth Ave., New York, N. Y. Taylor, Smith & Taylor Co. Charles R. Landback Chester, W. Va. Manufacturers of Lu-Ray pastels, underglaze prints, and overglaze decorations. The forty-ninth year of service to the trade with quality dinnerware. Tegellaboratoriet Christer Enberg Box 5073, Stockholm 5, Sweden Brick research laboratory. Thatcher Manufacturing Co. Roy S. Arrandalr 1901 Grand Central Ave., Elmira, N. Y. Manufacturers of glass containers for milk, foods, bever ages, beer, and liquors; also Fastpak, vacuum packing machine for food products in glass. Factories at Elmira, N. Y., and Streator, 111. Thermo Fire Brick Co. Howard Hicks Sulphur Springs, Texas Manufacturers of first-quality and intermediate heat-duty fire-clay brick and a 2600F. insulating firebrick; first- quality and intermediate brick are made by both the dry- press and stiff-mud processes; also special shapes, cupola blocks, wall and arch shapes, high-temperature cement, plastics, and castables. Titanium Alloy Mfg. Div., National Alex Stewart Lead Co. Ill Broadway, New York 6, N. Y. Manufacturers of zirconium oxide opacifiers, zircon for frits, zirconium silicates for glaze opacification, zircon tor bodies, zircon refractories, ferro titanium alloys fr "c steel industry, rutile and titanates for welding rods. Vol. 28, No 8 titanium compoum conium compound; zirconium compoui catalysis- Trenton Potteries ( plants No. 5 an Manufacturers of h -lumbing fixtures; fountain receptors geacy baths, auto; closet combination; fwyfords, Ltd., Cli Stc Manufacturers of ss china, and enamel. equipment for ever? fixtures required f. tories. Tygart Valley Glas: Manufacturers of jars to be used excl products. Tyler, W. S., Co. 3615 Superioi Largest weavers of square mesh, Ton-i cloth and testing si screening machinery Ty-Rocket screens, Union Electrical Po Works, Inc. Box Manufacturers of j neon accessories, in stitutes for metal facilities; during t armed services. Union Francaise de Refractaires 15 Rue A technical and co manufacturing aboi United Clay Mines Oakland and Producers of domes; industry; domestii Direct importers o: following materials Albany slip, vitrox. United Glass Bottl 8, Leicester Manufacturers of f flint, amber, blue, colors; pressed don and plastic closures. United States Glass Manufacturers of pi: bar, and restaurant scientific ware. United States Gyps; 300 W. Ac Manufacturers of U. strength gypsum ce Plasters, U.S.G. pis stone, dolomite and and terra alba thr world. (1949) 314 A merican Ceramic Society Bulletin--Directory of Corporation Members Walsh Refractories Corp. J. L. Crawford 101 Ferry Street, St. Louis 7, Mo. Manufacturers of a complete line of fire-clay refractories, including Walsh vacuum cast flux block, CSR (cast silli- manite refractory), and refractory grade upper structure, feeder parts, checker-brick, high-alumina, high-fired superduty, superduty, high heat-duty, and intermediate- duty firebrick, high-temperature bonding mortars, plastic refractories, and castable refractories. Walsh Walsh, John,.Ltd. W. G. Riley Soho & Vesta Glassworks, Birmingham 18, ! England Producers of firstfquality handmade decorative domestic crystal and tableware; special lighting glass for illuminat ing fittings; scientific reflectors for floodlighting shop windows and the cinema industry. Washington Brick; Co. Thomas Somerville, III Washington-Baltimore Blvd., Muirkirk, Md. Manufacturers of common and face brick; originators of the Circle System; cinder block and Spectra Glaze on cinder block; distributors in metropolitan Washington for firebrick, structural clay products, drain tile, sewer pipe, flue lining, glazed brick and tile, glass block and terra cotta. Washington Porcelain Co. C. H. Ackerson Willow St., Washington, N. J. Manufacturers since 1917 of electrical porcelain for the parent company. The Arrow Hart & Hegeman Electric Co., Hartford, Conn., which is engaged in the manufacture of electrical wiring devices and electrical controls. Watt Pottery Co. !. Loren M. Watt i Crooksville, Ohio Manufacturers of i matched kitchenware and ovenware, Peasant Ware with free hand underglaze decorations. Wild Rose with; underglaze decoration kitchenware. Past-L Kitchenware with five pastel colors. FlavrR- Bake Ovenware with two color bands, hand blown. Western Brick Co. I. R. Cline ' Danville, 111. Producers of face and common building brick in shades of red and buff; Haydite, a lightweight fired-clay aggregate; facilities for the manufacture of paving brick and hollow tile, not regularly produced. Western Electric Co., Inc. W. B. Tall 7810 Hawthorne Station, Chicago 23, 111. Bell System Supply Branch. Manufacturers of telephone, telephone-exchange, and outside-telephone-plant equip ment. Purchases | supplies and acts as distributor of telephone equipment and supplies. Western Feldspar Milling Co. J. W. Magnuson 1333 Wl Maple St., Denver 9, Colo. Producers of western feldspars for glass, pottery, and enamel plants. Westinghouse Electric Corp. John D. Hamish Derry, Pa. This plant makes electrical porcelain products. In par ticular, it manufactures high-tension porcelain for trans mission and distribution systems; also Prestite and zircon Prestite porcelains1 for special designs of the communica tions industry. ! Westinghouse Electric Corp., Glass Plant epb Early Fairmont, W. Va. This plant produces fluorescent tubes used in th facture of fluorescent lamps and exhaust stem and011' blowing tubing for making incandescent and lamps. "UWescen, West Virginia Brick Co. Claude F m- Charleston, W. Va. ' lseOaa Manufacturers of unglazed facing tile, face brick brick. ' ant) firi Wheaton, T. C., Co. Frank H. Wheats, 1118 N. High St., Millville, N. J. Wl' Jr. Manufacturers of borosilicate glass for the biological for packaging such items as blood plasma, penicillin**1 insulin; all types of industrial glassware, radar, and'?d tronic glass components; also a line of perfume andmetic containers, including glass-stoppered bottles cos- Wheeling Steel Corp. Ernest Tt c SteubenviUe, Ohio ' byd Manufacturers of semifinished and finished steel prodi Includes sheet steel for porcelain enamel ware atSl bodies, furniture stock, etc. Finished products inel Uj galvanized sheets and containers, tin plate, pipe u<"j expanded metal. Steel plants at Steubenville, Ohio an Benwood, W. Va. Manufacturing plants at YorkiHU and Martins Ferry, Ohio, Beech Bottom, Warwood/a Wheeling, W. Va.; General Offices at Wheeling, W. Va " Willson Products, Inc. Thomas A Willem. Box 622, Reading, Pa. ' "" Originators of Willsonite, Willson-Weld, Alubro-Weld Super-Tough, and other special glasses for eye protection- manufacturers of sunglasses and a complete line of eve' head, and respiratory protective devices; also air-analvsis apparatus for industry. Wisconsin Porcelain Co. L. A. Stohl Sun Prairie, Wis. Manufacturers of insulators, standard and special, high, heat refractories in colored glazes, steatite, and ceramic filtering material. Woodville Lime Products Co. J. Robert Cowell, Jr. 2140 Jefferson Ave., Toledo 2, Ohio For more than forty-five years producers of finest-quality high-magnesium lime, oxide and hydrated; consistently low iron content; prompt shipments can be made from plant of large capacity. Worcester Royal Porcelain Co., Ltd. Joseph F. Gimson Worcester, England Producers of fine bone china dinnerware, statuettes, and ornamental ware; hard felspathic porcelain laboratory ware and cooking hotel ware; alumina porcelain sparking- plug insulators and technical porcelains. Worthington Pump and Machinery Corp., J. C. Lukas Ransome Industrial Mixer Division Dunellen, N. J. Manufacturers of industrial mixers of all kinds for the ceramic industries; also welding and work positioning equipment. i Vol. 28, No. 8 The interests of a not only by its officers, mittees. Each of thes tions for the general gor 0f course, have comm work in their particul; be> in most instances, pointed by the Divisioi sion offices have, in e precedent of successio program chairman gem 0f the Division, and t mittee after so doing, program chairman is, portant appointment l is of course not manda tained, for if a poor cl stances arise which ma an appointee, he certain By experience and gformulated along sensib possible. The rules d responsibilities of the i way do they eliminatt people for our commits These are highly re; not always recognized appointee or a nomint considered from many p factors given the least is, whether the individ and willing to work oi Often a man is appoint qualified for the job t< interested in the job, i Very often the busy m work, is a poor ch< qualifications or his bu or less successful, but wil of time, may contribute Matters of experienc consideration. While t to serve they may not Pcred imagination needi t to a practical solutio: are composed of enougl to possess the required Continuity in our co couraged by reappointi Projects of one year will ; American Ceramic Society--Directory of Corporation Members 313 compounds in high dielectric applications, zir'uio compounds for water repellance of textiles and C^onium compounds for pigment lakes and toners and in nton Potteries Co. Leonard H. Hepner ^plants No. 5 and No. 6, Box 141, Trenton 1, N. J.' . ufacturers of high-grade vitreous china and Duraclay i fflbing fixtures; the line ranges from small drinking- < intain receptors to large hospital pieces such as emer- 'flry baths, autopsy tables, etc., including fine water- combinations, lavatories, bathtubs, and sinks. T,ivfords, Ltd., Cliffe Vale Potteries A. V. Pimble Stoke-on-Trent, England vfanufacturers of sanitary pottery in earthenware, vitreous Tina and enameled fire clay; patterns cover sanitary Tuipnient for every class of building, including specialized jxtures required for hospitals, clinics, schools, and fac tories- Tveart Valley Glass Co. O. C. Noble Washington, Pa. Manufacturers of narrow- and wide-mouth bottles and jars to be used exclusively by commercial packers of food -products. : Tyler, W. S., Co. C. E. Jenks 1 3615 Superior Ave., N.E., Cleveland 14, Ohio Largest weavers of precision wire cloth: Double-Crimped square mesh, Ton-Cap and Ty-Rod high-capacity screen doth and testing sieves. Pioneers in developing efficient screening machinery: Hum-mer, Tyler-Niagara, Ty-Rock, Xy-Rocket screens, and Ro-Tap testing sieve shaker. Union Electrical Porcelain F. W. Van Orden Works, Inc. Box 762, Trenton 5, N. J. Manufacturers of porcelain for electrical wiring devices, iieon accessories, industrial specialties, noncorrosive sub stitutes for metal parts, and special shapes; die-shop facilities; during the war, practically all production for armed services. Union Francaise des Produits Louise Halm Refractaires 15 Rue de Milan, Paris 9', France A technical and commercial association of 32 producers manufacturing about half the total of French refractories. United Clay Mines Corp. K. E. Ward Oakland and Prospect Sts., Trenton 6, N. J. Producers of domestic china and ball clays for the pottery industry; : domestic ball clays are available purified. Direct importers of English ball and china clays. The following materials carried at Trenton: clay, spar, flint, Albany slip, vitrox, artware clays. United Glass Bottle Mfgrs., Ltd. J. Tipping 8, Leicester St., London, W.C. 2, England Manufacturers of glass containers of all descriptions in flint, amber, blue, dark green, light green, and opal colors; pressed domestic tableware and tumblers; metal and plastic closures. United States Glass Co. C. W. Carlson Tiffin 15, Ohio Manufacturers of plain and decorated tableware; fountain, bar, and restaurant glassware; industrial specialties and scientific ware. United States Gypsum Co. J. S. Offutt 300 W. Adams St., Chicago 6, 111. Manufacturers of U.S.G. pottery plasters, Hydrocal super strength gypsum cements, AA dolomite, special polishing plasters, U.S.G. plate-glass plasters, raw dolomite lime stone, dolomite and high-calcium lime, glasshouse gypsum, and terra alba throughout the United States and the world. 1 Universal Clay Products Co. C. A. Bloor Sandusky, Ohio Manufacturers of dry-process electrical porcelain insula tors, standard and special electrical porcelains, glazed and unglazed; also specialists in producing items to customers' drawings and specifications. Universal Dental Co. Joseph Kohn 48th and Brown Sts., Philadelphia 39, Pa. Organized in 1917 for the manufacture of porcelain teeth exclusively, for use by dentists in making prosthetic res torations. Products are sold in every country of the world where business can be done. Universal Potteries, Inc. G. D. Agnew Cambridge, Ohio The products of this company consist of Ballerina colored glaze dinnerware in blue, yellow, green, and gray colors, Camwood shape dinnerware, with complete line of Oven proof cookingware in various colors and types of decorative treatments. Universal-Rundie Corp. J. R. Beam New Castle, Pa. Manufacturers of vitreous china and cast iron enamel plumbing fixtures, with factories at Camden, N. J., New Castle, Pa., Milwaukee, Wis., and Redlands, Calif. Cen tral Research D;yision at New Castle. Valentine Fire Brick Co. W. H. Peterson, Jr. Woodbridge, N. J. Manufacturers of firebrick, fire clays, refractory cements, etc. Modem, highly mechanized production methods. Burning facilities include tunnel kilns as well as standard periodic kilns. Valentine XX, a semisilica brick, is widely known for its production records in ceramic kilns and steel mill furnaces. Vanderbilt, R. T., Co., Inc. Ira E. Sproat 230 Park Ave., New York 17, N. Y. Sales agents for Nytal talc. Peerless kaolin, Pyrax pyro- phyllite, clay deflocculant, Rayox titanium dioxide, Re- dium selenium, cerium hydrate, and tellurium; research on new and old ceramic materials; assistance given to customer problems. Vesuvius Crucible Co. Francis L. Arensberg Box 8275, Swissvale, Pittsburgh 18, Pa. The products of this company are in three categories: (1).graphite stopper heads and nozzles for pouring steel ingots and castings, (2) graphite crucibles for melting all metals, and (3) special shapes such as stirrers, base blocks, covers, saggers, and pyrometer protection tubes. Victor Insulators, Inc. H. Failmezger Victor, N. Y. Producers of wet-process high-voltage porcelain insulators and chinaware; also special-design porcelain for manu facturers of transformers, switchgear, capacitors, fuse cutouts, potheads, junction boxes, and ceramic specialties. Vidriera Monterrey, S. A. Alfonso F. Rodriguez Apartado 162, Monterrey, N. L., Mexico Vitreous Steel Products Co. Edgar H. Weil - Box 1791, Cleveland 5, Ohio Manufacturers of porcelain enamel table tops and break fast sets; job enameling. (Factory at Nappanee, Ind.) Vitro Mfg. Co. A. J. Strod Corliss Station, Pittsburgh 4, Pa. Founded in 1909 to manufacture ceramic colors and spec ialty chemicals; producers of a complete line of colors for potteries, glass, and porcelain enamels; also owners and operators of an ore-refining plant in Canonsburg, Pa. Vollrath Company Jean C. Vollrath Michigan Ave. and 18th St., Sheboygan, Wis. Manufacturers of stainless steel, cast iron, and porcelain enameled utensils--for homes, restaurants, hospitals, and dairies--under the brands Vollrath and Vollrath Ware. (1949)