Document Qk32Zm8ejp6eEQz7NkB4wzXD4

V': Pre*aem6ii/i^ the lead roughing-in for the plumbing in three low cost housing projects at East St. Louis, Illinois. See story page 2. LEAD .INDUSTRIES ASSOCIATION' N 1021 Prefabricated Lead Plumbing Avoids Construction Delays HE ease with which lead plumb T ing can be prefabricated has never been more aptiy shown than in two very large housing projects now underway .in the midwest and south western sections of the country. In both of these projects, practi cally the same operational methods oi prefabricating the lead work were used. In both, the lead roughing-m was prepared long in advance of ac tual construction needs in the plumb ing shops of the various contractors under ideal working conditions, a situation that permits of assembly line techniques that result in better work manship at lower cost. This pre-assemblv, of course, also allows for steady, all-weather work and a smooth how of units for quick installation when the buildings are sufficiently ad vanced, thereby further helping to lower costs by avoiding construction delays, delavs that can very often mean the difference between a profit able or losing venture. The two jobs are public housing projects totaling 4.200 units, 3,500 in West Dallas, Texas, and 700 in and near East St. Louis. 111. In the West Dallas project, lead drum traps for all baths with lead Lead work in process in the plumbing snop on the site of the 3-500 unit low cost housing protect in & est Dal las, T exas. waste and vent connections and lead bends for water closet connections were prefabricated for use throughout the 3.500 dwelling units. Individual apartments will have one to four bed rooms in groups of four, six, seven and eight apartments to the building. The total 3.500 units were divided into seven project contracts each havina approximately 500 units. The Farwell Co. Inc., mechanical contractors of Dallas. Texa?. secured the plumbing contracts for three ot these projects or approximatelv 1.500 units. The accompanving photoaraphs illustrate the assemble line technique used bv the companv in prefabricat ing the plumbing installations. The same pre-assemblv methods !or the plumbing in the remaining 2.000 units are beina used by the ilra. Keseling Plumbing Co. ot Houston. Texas, and the Russell Plumbing Companv of Oklahoma Cite. Okla homa. each of whom have the plumb ing contracts for approximately 1.0' n > units. Plans for the project were draw n up by the Associated West Dal las Housing Architects. In and adjacent to East St. Louis. Illinois. 700 apartment units are now under construction in three separate projects. Two of these. Roosevelt Homes and Villa Griffin will have 300 units apiece and the other, De Schields Homes, will have 100 units. E. J. Maag. plumbing and heatina contractor of East St. Louis, is install ing the plumbing for all three proj ects and the assembly line technique LIA?60 12 Lead bends, lead drum traps, lead wastes and vents prepared and ready for installation on the West Dallas job. Typical pre-assembled lead roughing-in installed for back-to-back bathrooms on the IPest Dallas public housing project. of preparing the lead roughing-in was used. The work was prepared in ad vance of construction needs and as a matter of fact, when the accompany ing photographs were taken, construc tion had not progressed sufficiently to secure photographs of the work in place. The plumbing was identical in each project and high quality, Lead Indus tries Association "Seal of Approval" lead pipe and fittings were used for all fixture connections, wastes and vents. Drum traps were fabricated in the plumber's shop from 4 in. lead pipe as were roof flanges made from 4-lb. sheet lead. Stacks were castiron soil pipe with lead calked joints. Approximately 96 tons of lead, in cluding 61 tons of lead pipe will be required for completion and the plumbers estimate that 20.000 wiped joints will be required. Even lead scrap accumulated from shop fabrica tion was utilized by the plumbing con tractor in making cast wall flange washers and for calking purposes, a form of economy that can only be practiced when lead is used. .Among the unusual assemblies that were prefabricated for these housing units were 67 harp-shaped waste and vent units, each with four iy2-in. vents and four ly-in. stubs to pro vide for back-to-back combination sinks and laundry trays. Lead Resists Corrosion In Newest Liquid Sulphur Dioxide Plant SULPHUR dioxide is an important industrial chemical, a large ton on a process perfected bv the Ameri can Smelting and Refining Company nage of which is obtained as b'-prod- at Selby. California ("Lead ". Vol. 18, uct from non-ferrous metallurgical No. 3). The process seri es as a prime operations. Purifyina and concentrat example of how modern chemical en ing sulphur dioxide for use in oil re gineering can take advantage of lead fining. paper pulp production, fruit to combat the corrosive action of wet curing, beet sugar refining, chemical, sulphur dioxide gas alone as well in wine and beer production, has be combination with a highly corrosive come an industrial process whose organic liquid, dimethylaniline satu growth in importance has paralleled rated with sulphur dioxide. the national concern with air pollu Briefly, the process involves absorb tion by waste sulphurous gases and. ing 7y> to 8 percent sulphur dioxide more recently, the decrease in avail gas in dimethylaniline (DMA), an ability of native sulphur, long a cheap organic solvent. The sulphur dioxide source of sulphur dioxide. is then stripped from the absorbent The Tennessee Copper Company at by means of indirect steam. Next it is Copperhill, Tennessee, recently con cooled, dried with 98 percent sul structed a new plant for the manufac phuric acid, compressed and stored ture of liquid sulphur dioxide based as a liquid under 30 to 40 lb. per sq. 3-- -- in. pressure until ready for shipment. Absorption of dilute sulphur takes place in a bubble cap tower. The shell of the tower is made of 12-lb. chemical lead erected in sections and supported bv steel columns and ring angles. Inside the tower are 19 travs made of Sho percent antimonial lead y in. thick and supported on bonded lead steel spiders. Antimonial lead bubble caps 4 in. in diameter are positioned on each tray. Stripping of the sulphur dioxide laden DMA and recovery of the ab sorbent are also accomplished in a bubble cap tower of smaller size. The shell in this case consists of bonded lead lined steel sections, the steel and lead each y in. thick. Supported on bonded lead lined steel bars welded to the tower shell are 29 antimonial lead bubble cap trays. Drying of the purified sulphur-di oxide gas is accomplished in a steel bubble cap tower, the lower portion of which is lined with 16-lb. lead to serve as a sulphuric acid storage ves sel. The first tray, subject to weaker acid and wet gas. is constructed of lead as in the other towers while the upper 6 trays and caps exposed to 98 percent acid are of steel. Also playing a prominent role in the DMA svstem of liquid.sulphur di oxide manufacture are a number of lead lined steel tanks and sheet lead tanks of cage type construction used for storing and separating various chemicals. DMA solutions to and from the circulating pumps are handled in lead pipe. Cooling of the DMA solu tion takes place in six lead pipe cool ers each consisting of 6 percent anti monial lead pipe 1 in. in diameter formed into two helical coils, one nested within the other. Cooling water is sprayed over the outer surface through a circular lead distributor. At one stage in the process it is nec essary to effect a heat exchange be tween hot. stripped DMA and rela tively cool, sulphur dioxide-laden DMA. The heat exchangers are illus trated herein and described in greater detail in a previous issue of ''Lead'' I'Vol. 18. No. 3). They consist of con centric lead pipes, the outer having a 2-in. I.D.. and being of 6 percent anti monial lead; the inner a 1-in. I.D. of finned cross section chemical lead. The coil is designed so that the area of the space between the two is approximately equal to the cross-sectional area of the inner pipe. This liquid sulphur dioxide plant is the second of its kind to be con structed in this country. It represents the very latest design in modern waste gas recovery and utilization systems with a capacity of 30 tons per day of pure water-white liquid sulphur di oxide. To achieve this production with a minimum of shut-down time due to corrosion-caused failure? approxi mately 95 tons of lead were used in .-fabricating the plant equipment. 4-- -- LIA2 601A Synchrotron Employs Lead For Radiation Protection TSX 0 and one-half tons of lead varying from 2-in. to 10-in. in thickness eliminate stray radiation inThe new 70 million elec a new source of high energy X-rays known as the synchrotron. Recently tron colt synchrotron de leLoped and built by the General Electric Co. tor installed at the California School of the California School o' Medicine, the synchrotron is an X-ray- Medicine. deep therapy machine for combatting cancer. It consists essentially of a magnet and electron source capable of generating high energy X-rays able PHOTOS BY GENERAL ELECTRIC CC. to penetrate much greater depths than conventional vacuum tubes. tube located in the magnetic field and Developed and built by the General then accelerated to about 186.000 mi. Electric Company at Pittsfield. Mass., per sec. At this speed they strike a the synchrotron is suspended bv fixed target which causes them to pass means of a hydraulic-mechanical through the walls of the doughnut mechanism which permits elevating it and out into the air as highly pene fifteen feet over the floor above a trating X-rays. patient or lowering it directly over Protection of operating personnel the patient, it is also able to rotate as well as the patient from dangerous about fixed shafts, thus enabling the stray Tadiation is gained by confining X-ray to be directed at anv angle. the entire unit in large lead chambers, The main components of the me the lead being bonded directly to the chanism are a doughnut shaped vac steel casing of the sheathing. The com uum tube surrounded bv a large plete machine is operated bv remote laminated core which becomes mag control from a portable unit in the netized In high voltage coils. The X-r&y room which is lead lined to electrons are injected into the vacuum eliminate radiation in the adjoining rooms. After aligning the beam to the position of the patient, the technician leaves the room and operates the syn chrotron from a master control desk to avoid the possibility of exposing himself to excessive radiation. As distinguished from the betatron previously described in "Lead" (Vol. 18, No. 5i which is-capable of pro ducing 22 million electron volts for medical treatments, the synchrotron can generate higher energies and can be almost universally positioned. Both operate on the same principle, however, and require the density of lead to absorb dangerous rays emitted in directions other than desired. Grand Central Station Avoids Water Seepage With lead Pans e s t a u r a n t kitchens, soda R fountains, washrooms, rooms for certain industrial processes, bath rooms. shower rooms, wherever floor surfaces are subject to frequent or constant wetting or flooding, pose the problem of controlling seepage to protect the building structure and spaces below. The problem is solved bv the use of a sheet lead pan. called a safe pan. under the floor of the leak age source. The Grand Central Ter minal in New York Citv is somewhat unique in that it has several different installations requiring this type of protection. Experience has demon strated to engineers of the New York Central Railroad, which owns the Ter minal. that a lead pan best serves the purpose and prevents the expensive damage that might otherwise occur. Accordingly, all such installations in the Terminal are so equipped. A recent instance of this is the lead safe pan under the new fountain in the Terminal Luncheonette, operated bv the Union News Company on the concourse level of the station. The water problem here is caused bv the constant floor washing and the pres ence of such water-using equipment as soda dispensers, coffee urns and sinks, but beyond this is an extra cor rosion problem caused by spillage of An 8-lb. sheet lead pan, 46 jl. x 12 ft., installed under a luncheonette jountain on the upper level of Grand Central Terminal. acid-containing fruit syrups. The cor rosion resistance of lead admirably suits it to negating this hazard. The safe pan covers an area of ap proximately 46 ft. x 12 ft. and is made entirely of eight pound per square foot sheet lead. The individual lead sheets are welded together. All pene trating pipes are collared with a lead sleeve which is welded to the pan to prevent leakage at these breaks in the lead pan. Inverted A bleeders lead ing to weep holes in the floor drain are tack welded to the pan. An eight inch upstand surrounds the entire pan and a box-like opening in the floor for refrigerating lines. Of prime importance in the instal lation of a lead safe pan is the proper preparation of the lead surface before pouring concrete for the new floor. ITorkman uelding lead upstand around opening for reirigeratton lines. Aote lead sleet es in place around penetrating pipes, ready to be welded to pan. The surface is coated with asphalt paint. This is done because water which has seeped through cement, concrete or mortar containing free lime mav be corrosive to lead as it is to manv other common metal-. The asphaltum protects the lead during the curing period of the cement. After the cement has complelelv carbonated the danger no longer exists. In addi tion. for the Terminal Luncheonette a layer of roofers felt was nut down before pouring to protect against abrasion from the gravel. This, of course, is desirable. The proven dependabilitv of lead for this purpose is the reason for its long-time use in all sorts of applica tions where constant wetting is a problem. 6-- -- Lead Helps Preserve Basie Documents Of The United States Method used for hand soldering protecnne sheets of tempered glass to the lead sepa ration strip to form a completely air-tight enclosure. the edges of the panes so as to seal the unit hermetically. A special me tallic coating is first applied to the glass surfaces at its edges so that a complete metal-to-giass bond is ef fected. Thus glass, lead separator strip, helium gas, and special leak de tectors, have been combined to pro vide the desired protection to these priceless parchments. At the same time the unit serves to give the public a better view of the documents. In commercial Thermopane the lead separator strip is either ^i-inch LIBBEY-OWtssroio CLASS CO. or t/2`>ncb in width. Large "picture windows" are normally fashioned of THE Declaration of Independence, the Constitution and the Bill of Libbev-Owens-Ford Glass Company were selected for the enclosures after Rights are precious and irreplaceableexhaustive tests by the Bureau of documents whose preservation for an Standards. The special panels for the indefinite number of centuries is vital. preservation of these documents con Even harmful effects that appear only sist of two panes of tempered plate slowly or to a slight extent become glass. There is also enclosed in the important in this instance. Hence the panels a cover glass which lies di Library of Congress requested the rectly on the documents, but has noth National Bureau of Standards to de ing to do with the sealing function. termine the best means of preserving The two panes of glass are separated the sheepskin parchments on which and held together in the unit by Tv- these historic statements are inscribed. inch lead separator strip soldered to The Bureau decided to enclose the two pieces of tA-inch polished plate glass separated by a 1^-inch dry air space. In many smaller windows Thermopane is composed of two pieces of t/g-inch glass with a 1^,-inch dehydrated captive air space. The lead separator strip, in addi tion to being a road-block to the in vasion of moisture, provides flexibil ity so as to accommodate the differ ences in expansion or contraction when the outer glass is exposed to ex treme cold and the inner glass to room temperature. documents within sealed glass enclo sures filled with helium. This protects Constructional details of type of enclosure :n which are encased the Constitution. Declaration of Independence, and the Bill of Rights. them against ehemicallv active gases such as oxygen and sulphur dioxide, inserts and microorganisms and con tamination with dirt or corrosive sub stances while, at the same time, thev can continue to be on display to the American people in a shrine at the Library of Congress. The Bureau of Standards deter mined. after tests, that the helium should contain between 25 and 35 percent moisture at room temperature. Too little moisture leads to brittleness and cracking of the parchment and too much to the growth of bacteria and hydrolytic reactions. Double glass panels made commer cially as "insulating" windows under the trade name "Thermopane" by L I A 26017 f I 4 THE FOLLOWING ARTICLE5 AND REPRINTS CONTAIN INFORMATION. DRAWINGS AND SPECIFICATIONS ON THE USE OF LEAD PRODUCTS HELPFUL TO ARCHITECTS. ENGINEERS AND OTHERS INTERESTED. THEY ARE AVAILABLE FREE OF CHARGE. EXCEPT WHERE OTHER WISE INDICATED. UPON REQUEST TO THE LEAD INDUSTRIES ASSOCIATION, A20 LEXINGTON AVENUE, NEW YORK 17, N. Y. LEAD IV MODERN INDUSTRY $1.50 Postpaid A fuilv illustrated. 230 page, doth bound book oe*cnciinr iJ) phases of tie production and u-e >f lead, lead alloys and lead compound*. Discusion of :be physical and chemical prnoerttes of lead and it.* compound* is included. Sufficient!' technical to be of practical Tame to the engineer in industry, vet broad enough for those with a more casual interest. THE DEPENDABILITY OF FUTURE LEAD SUPPLIES \ leader cotitsinine a brief and nnn-teebnieaJ *iir-usMon of the lead situation. Tells why consumers in this country may depend on adequate supplies <>t lead in the future. METAL PROTECTIVE RED LEAD PAINTS The versatility of red lead is protective primers to meet a wide range of surface eonditiona. dryiag schedules and economic demaoda ia described. Reprinted from "Paint and Varsiah Production." January. 1951. RED LEAD TECHNICAL LETTERS A aeriaa of technical letter* Issued by the Bad Laad Division. Laad Industries Association. The number* and titles follow: (Available separately ) Teehafeai Letter No. 3--Red Lead Primer* for Atmoepherie Exposure Technical Letter No. 4--Red Lead Palms for Marine Exposures TerhnieaJ Letter No. j--Rfd Lend-Vlnyl and Coumarooe Type Paints Technical Letier No. 6 Red Lead Paint formula lions. Technical Letter No. 7--Paint Systems for 11'draulie Structure* FEDERAL SPECIFICATION TT.P-86* Paint: Red-Lead-Bane. Reedy.Mixed Cover? four tvpcs of Ted lead base paints including two fast drvmg formulations. Many intended application* lifted. AN INVESTIGATION OF PRIMERS FOR MARINE ATMOSPHERIC ENVIRONMENTS Results of an Investigation of synthetic vehicles and red lead mixed pigment primers over an expoaura period of three and one*half year* in a rigorous marine atmosphere. Reprinted from "Official Digest'* published by The Federation at Paint and Varnish Production Clubs, CONTROLLING CORROSIVE AIR POLLUTANTS A di>cu*>on of the various methods in use today to control corrosive air poilutanta. Reprinted from "Air Repair," May, 1952. LEAD IN MODERN CHEMICAL CONSTRUCTION U'bat vou should know about the yanoua type* of lead construction in the chemical field. Reprinted from "Chfimcal Engineering." Jao. 1952. NEW DEVELOPMENTS EXPAND USE OF LEAD CONSTRUCTION Improvement* in lead fabrication and installation methods are described and illustrated Is a re print from "Material* & Method* May. 1951. The article `how* how lead cont rue Don develop ments have continued to keep pace *ul) develop ments in the chemical sod process industries. THE USE OF LEAD IN THE PULP AND PAPER INDUSTRY Detailed description of various applications of lead in the modern puip and paper mill. Covers ail ph**ea of paper puip manufacture and treatment including sulphite acid manufacture, acid pulping, bleaching and stock haodling. Repnated from "Paper Trade Journal,'* Oct. 26, 1950. LEAD WELDING An tnformatlva a* well aa practical guida to lead elding, Reorlnved from tha "Welding Handbook, Third CdUloo" published by the American Welding Society. LEAD IN MODERN PLUMBING-- WHY, WHERE HOW IT IS USED A 24 page booklet contamiog descriptive informa tion aa well aa four page* of detailed drawings for plurooing installations in vanou? type hou.es. FEDERAL SPECIFICATION WW.p.325 For Pipe. Benda and Trapa. LEAD Part 5 of Section IV of the Federal Standards Stock Catalog, official-publication by the Government Print ing Office. MEMBERS OF THE LEAD INDUSTRIES ASSOCIATION .ALPHA METALS. INC......................... Bo, 34, Bcr'tn Simon. Je,..v Cu t 4. N J. THE t.MERICAN METAL CO.. LTD........................ t>l Broad*.,. York 6. .V 3. AMERICAN SMELTING 4 REFINING CO........ 120 Broaow.v. .V York 3. N Y . AN ACONDA COPPER MINING CO............................23 Broad..,. No. York 4. V > . BERS 4 COMPANY. INC.......................... 4'ti.cd 4 Lr.i, Sr. . PliiMripko 21. Pa. BROKEN HILL ASSOCIATED SMELTERS PROPRIETARY LTD. Collin, Hou-o. Mrlliouror Cl. Au-tr.ha BROKEN HILL SOUTH. LTD................ Boa 194-C. C.P.O. Melbourne. Auau.il. BLNKER HILL 4 SULLIVAN MINING AND CONCENTRATING CO Kellocg. Idaho CAMBRIDGE SMELTINC CO.................................... 100 Pactfic St. Cambridge. M*- CERRO DE PASCO CORP.......................................... 40 Wall St.. New 'lork 5. N. Y. CHIEF CONSOLIDATED MINING CO............................................................Eureka. Utah THE CONSOLIDATED MIN1NC A SMELTING CO OF CAN A D X LTD. Place D'Armes. Montreal 1, Canada DAY MINES. INC............................................................................................... Wallace. Idaho DICKSON WEATHERPROOF NAIL CO...............................Bos 590. Evanston 4. 111. DIVISION LEAD CO................................................836 W. Kinzir St.. Chicago 22. 111. E. !. DU PONT DE NEMOURS A CO.. INC............................ Wilmington 98. Del. THE E AGLE-PICHER CO............................. American Buudinc. Cincinnati I. Ohm THE ELECTRIC STORAGE BATTERY CO................ Bo* 8109. philaui Ipbia. Pa. ETHYL CORP............................................................ 100 Park Ave.. New York 17. N. Y. FUSION LEAD CO. (The Giidden Co. i................ 500 Penn .W. Scranton 1. Pa EVANS LEAD DIVISION (National Lead Co.) Box UbT. Charleston 25 W. V*. EVANS METAL CO..............................................Bo* 97. No Side 8r.. Atlanta. Ca. FEDERAL MINING A SMELTING CO................ 120 Broadway. New York 5 N. Y. FEDERATED METALS DIVISION OF AMERICAN SMELTINC A REFINING CO. 120 Broadwav. New A nrk 5. N. A. THE FIRESTONE TIRE A RUBBER CO. Box F. Fireione Perk. Akron 17. Ohio THE FLEMM LEAD CO.. INC. Bradley Ave. A School St.. Lone Gland Cu t 1. N. V V. r. FULLER A CO..................................... 301 Miion St.. San Franrivn 19. Cal. GARDINER METAL CO............................. 2Q S. Campbell Ave.. Chicaco 32. III. GLASER LEAD CO.. INC.................................31 Vvrkoff Ate.. Brooklyn 27. N. Y. GOLDSMITH BROS. SMELTINC a REFINING CO58 E. Wa-flingfor St.. Chicago 2. 111. HAMMOND LEAD PRODUCTS. INC..............5231 Hohman Ave.. Hammond. Ind. HECLA MINING CO...........................................................................................Wallare. Idaho HUDSON SMELTING A REFINING CO.............85-95 Hvatt A>e.. Newark 5. N. J. IMPERIAL TYPE METAL CO . . .3400 Aranuncn Ave.. Phtiau. ii-ma -1 Pa- I NT E R N A TIO N AL SMELTING A REFINING CO. (Anaconda .n ip - l -. Acent-/ 25 Broadwav. New Y rk N. 3. THE JOHNSTON FOIL MANL FACTl RING CO. t>yl6-M20 Broadway St. Loui* H M- KNAPP MILLS. INC........................ 23 15 Borden Av. . Lone Gland t.uv . N V LEAD PRODLCTS CO.................................................709 N \ eta-, Hou-mn 3 Tc y u - JOHN R. MacGRECOR LEAD CO. ....4520 W I5in m.. Chirac- 33. 111. METRO SMELTING CO........................Onrar/n A Bate Sr-. Phimari,,n.a '>4 Pi. MIKE HORSE MINING A MILLING CO................ 62" Power Bldu.. H<-|. ra M-n< NATIONAL LEAD CO...............................................Ill Broaowav New V-k - N Y. NEW PARK MINING CO.....................................................................................kre.,,M l:ah NORTH BROKEN HILL. LTD.. . .Sot 1903-R. C.P.O.. M.-ii-urn. >.u-itau,i NORTHWEST LEAD CO................................ 2700 loth Ave.. S * . p-mi' Ud.n THE OKONITE CO............................................................................................. Pa*aic. N. J. FARK LTAH CONSOLIDATED MJNEw CO. ( nniinrnial Bank Bldg , S.ih Lake Ciiv 1 L ral PENNSYLA A.M.A SMELTING A REFINING 1.1). Mlvt E. Oman,, -i.. Phiiadeli.i s.i 31 P.i. PHELPS DODGE CORP........................................ 40 nil N-w Urk 5. N I . RIVER SMELTINC A REFINING CO........Uos Bradlev K-o.d. cl.-vrian.i 1. 'min ROCHESTER LEAD VORkS. INC................. li Etrham:- M.. 1G*< n-.r r ft. N. 3. ST. JOSEPH LEAD CO........................................ 250 Park Air.. N.-w 3nrk !*. N V. SH ATrt'CK DENN MININC CORP....................120 Broadway New Y >rk 5. N 5. SIP1 METALS CORP.........................................1708-1720 El-in Mr.. Ch.cac- 22. III. STANDARD ROLLING MILLS. INC................14.3 JrHl 5... Brrmkhn 32. N V. SUNSHINE MINING CO.................................... 115 N. second St-- Yaiumj. UNITED AMERICAN METALS CORP..........1% Diamond St.. Brn-Uvn 22 N. 3 . UNITED STATES SMELTINC REFINING AND MINING CO.. JN< 57 Will,am 5:.. New York 5. N Y. THE VICTORY WHITE METAL CO............6100 Rnland Ayr Clev*ian.i 4 uh.o HYMAN VIENER A SONS...................................3300 Hatcher R.-hmonJ 5. A a. VULCAN LEAD PRODUCTS CO.......... 1545 W. Pi.-rcr St.. Milwaukee 4, W,. THE WEN5LEY MET.AL PRODUCTS CO..........1445 O^acr t . [)<--,,, 4. Colo WESTERN ELECTRIC CO. INC............................ 195 Broadwav Nr* V.rk 7 N. Y. WESTERN LEAD PRODUCTS CO-..4530 t. Pacific Wax. l,, Anc-G. 22, Cal. WHITE METAL ROLLING A STAMPING CORP. 80 Moultrie 5'.. Bro-ilin 22. N Y. WINCHESTER REPEATING ARMS CO....................................... New Haven G Conn. THE ZINC CORP. LTD........................5<> 384-D. C.P.O.. Melbourne. Australia * Aociate Member. UPON REQUEST. THE LEAD INDUSTRIES ASSOCIATION WILL BE GLAD TO MAIL "LEAD" REGULARLY, FREE OF CHARGE. TO THOSE INTERESTED. AND WILL COOPERATE WITHOUT OBLIGATION IN THE SOLUTION OF YOUR LEAD PROBLEMS PRINTED IN L S V PUBLISHERS PRt N ' N EW > OR K #A e lU 26018