Document ZJbEVMw041N1eOjwb2gK19140

/T- ' We are Intrigued with this night photograph of the semi-outdoor Hawthorn Station of Kansas City Power A Light Company. All the more do we like it because it shows a couple of Elliott outdoor splasbproof . (weather-protected) motors driving forced- and Induced-draft fans. The 250-hp motor driving the . forced-draft fan is.not too easy to make out at the left, but plainly shown at the right is the 600-bp * motor on the induced-draft fan. This station was written up in the Summer 1932 issue of Potcerjax* When the fourth unit is completed in 1955, the $50,000,000 Hawthorn Station, named after MiasourH state flower, will represent one of the largest single private investments in the history of Kansas CftT* / . ; .. ; r. ... - ' -. X POWERFAX VOLUME THIRTY-TWO NUMBER 1 Hw Publication* . Bulletin N-18, Deaeration by Elliott. A new if 24-page bulletin that covers fully the ** principles of deaeration. Bulletins .VI9. $ ***d ^'20 4 PaScS> cover respectively Elliott Tray-type, and Elliott Spray-type Deaerating Heaters. Bulletin PBllOOO-1- Elliott Crocker Wheeler Flexible Couplings--4 pages. Includes coupling dimensions and table for easy selection of proper size. Bulletin H-21. "Fundamentals of Turbine Speed Control/' A generously illustrated educational booklet on theory and oper ation of various types of speed control systems. Bulletin PB6000-4, 2 pages, Elliott C-W S^aUdpoaer Type TP taconite-dustproof Motors. Bulletin Q-14A. Elliott Equipment for Power Plant and Industry--16 pages. Powerfax Index A new Pwerjax index covering articles that have appeared in issues of the last three years is now available and will gladly be sent to you upon request. Speakers On January 6, R. N. Williams, manager of the centrifugal compressor department of Elliott Company, addressed the regular monthly meeting of the Pittsburgh Section of the American Institute of Chemical Engineers on the subject "Compressor Ap plications in the Chemical Industry." Philip Scarola, Pittsburgh office, and. C. C. Brandt, electrical department super intendent, Bethlehem Pacific Coast Steel Corp., Los Angeles, jointly presented a PaPcr before the Western meeting of the in Los Angeles during- February. ^The subject was Bethlehem Pacific's com- .taxation bar and rod mill at Los Angeles. H. Steen-Johnsen, chief turbine engineer ComPany spoke before the 'w~ Johnstown section, January 26. 8/ ** Cameron, Elliott Company chief urgist, was on the program of the '. annual conference of the National ;"*ioo . of Corrosion Engineers at .CSty, Missouri on March 19. CONTENTS FOR SPRING 1954 IN* AMERICAN ENKA CORPORATION'S LOWLAND PLANT................................................... 4 THE REBEL WARRIOR................................... 9 LONE STAR'S MODERN PIPE MILL................................................................................. ...................10 LION CHEMICAL PLANT INSTALLS TURBIXE-CENERaTOR............................................... 14 BEAVER CREEK SUBSTATION--KEY LINK IN NORTHEASTERN COLORADO TRANSMISSION SYSTEM........................................................................................................................16 TOTALLY-ENCLOSED IXERT-GaS OR INSTRUMF.NT-aIR-COOLED MOTOR............19 POWER MODERNIZATION AT DOWNINGTOWN PAPER COMPANY................................20 UNDERGROUND GAS STORAGE .AND THE OAKFORD STATION...................................... 24 TIRE PLANT REFRIGERATION TURBINE........................................................................................26 ON THE JOB IN CUBA.......................................................... ...27 STEAM JET EJECTORS IN THE MANUFACTURE OF ANTIBIOTICS......................:____ 28 l ELLIOTT GENERATOR IN MUNICIPAL PLANT............................................................................ 30 POWERCRAX.................................................. 31 C-W General Manager S. K. Hostctter, Jr., sales manager of the Crocker-Wheeler Division for the past year is now general manager of the division. Mr. Hostctter joined Elliott Company in 1934. Before going to the Crocker-Wheeler Division he had been in the Washington office, first as a field engineer and then as district manager for ten years. Assistant Didrict Manager F. L. Humphrey, Jr., has been named assistant district manager in the Atlanta territory. Mr. Humphrey joined the com pany in 1938 after graduation from Georgia Tech as an electrical engineer. After train ing, he was assigned to the Atlanta office as a field engineer. In 1942 he entered the army and served four years, returning in 1946 to the Atlanta office. New Orleans Office A New Orleans office is now located at 256 Lee Circle Building, telephone Ray mond 2662, lo service southern Mississippi and Louisiana. It ts staffed by G. C. Bayles as manager and C. W. Britt, Jr., both formerly in the company's Atlanta office. District Office Men Meet * Powerfax readers might be interested in this group of Elliott Company district office men assembled at a recent meeting in Pittsburgh. Back row: Honcfcnger, St. Louis; Thayer, Cincinnati; Fox, Cleveland; Williams, Detroit; Crisman, Pittsburgh; Willcox, Houston. Front row: Hiller, Washington; Kinsel, Boston; McClure, Tulsa; Widau, Chicago; Dunn, San Francisco; Pahrcn, New York; Hoffman, Atlanta; Strickler, Pittsburgh; Lemmon, Philadelphia; Wilson, New York; Sicvcrt, Kansas City. Coaapaoy, Jeannette, Pa. POWERFAX. SPRING 19S* PAGE 3 The Lowland. I ennessee. plant of Anteruan Enka Cinpuratfon makes an wtpresMie usual mu. Hrt>nwiw> operation in I(A IK. it is \ equipped with the most modern niaihinery. 7 he power plant i.\ vr in the hackaround. I he other \larks handle process waste gas. I c IN AMERICAN ENKA CORPORATION S LOWLAND PLANT PERHAPS ever since the Chinese started using silk, nhoul 2640 B.C., scientific and curious people have been in- j_ trigued with the prospect of making "artificial silk." It is recorded that in 1664 an English naturalist and research '< scientist suggested that a way might be found to make an artificial composition resembling the substance spun by silk worms. A Frenchman, de Chardonnet, in 1878 began an extensive study of the life and habits of silkworms. Al ter many failures, he chemically ``digested'' mulberry leaves to produce nitrocellulose. He forced a syruplike solution through tiny holes in the end of a nozzle and patented his process in 1 884. His "artificial silk" was a sensation at the Paris World Exposition in 1889. Various other discoveries and developments caine along rather rapidly. In 1911 at Marcus Hook, Pa., Cottrtaulds and Company started the first viscose plant in the United States. In 1924 the term "artificial silk" was discarded in favor of "rayon." In a comparatively short time rayon has advanced from a laboratory curiosity to a vast industry employing PAGE 4 POWKltFAX. SI'HINU 1934 Hi/Jr gold and platinum spinneret might be ithe heart ofthe process of spinning or ; viscose into rayonfilament. The t i pumped into a glass tube and t'other end through this thimble-like py which is perforated with any118 to 720 microscopically small ffrom two- to three-thousandths of him diameter. The spinneret, in jSian, is immersed in a spinning bath tesulphuric acid and various salts. it*- Above and hetoiv ore the three FAlwU1SiXXFluv turbine-generator units which can u(>rratc straight condensing or condensing extraction at 20 f>sig to f>rocrss. The steam conditions are d()0 f`*ig. 720 Fr exhausting to 2 in. ffg ah adutc. Jb pi people. In America, the I production of rayon has rock^ i 97 million pounds in 1928 -and-a-quarter billion pounds ^a group of far-visioned ^founded the American ation .with. an eye to process for hal silk." The name fegwiram the initial itherDutch company, ^Ktihstzijdefabriek, ^Ca'iinDu tch). i?tiggnore than 50 ^ese';,industrial fey.'r- I'OWIJUKA.X. simii.v; 1`Ml PAGE 5 j pioneers decided to build their first production plant in western North Carolina, near Asheville. Several fac tors prompted this decision--acces sibility to ran- materials and markets, ill; al climate, abundance of pure water, and an ample supply of capa ble labor. By 1940 Enlca was providingjobs lor nearly 3000 people, and its annual production of 23,000,000 lb was four times the first year's output. At the outbreak of World War If. F.nkn quickly geared itself to produc tion of liigh-tenaciiv yarns requested by the L'niietl States Government. Etika rayon was used in airplane and truck tires, self-sealing tanks and hose, cargo parachutes, and other essential wartime items. After the war, the company ex panded even more. Since the Enka t.Asheville) plant had grown to its full capacity, plans were drawn in 1946 for a second plant eight miles south of Morristown, Tennessee, in a community called Lowland. Equip ped with the industry's most modern machinery, the Lowland plant began operations early in 1948. This plant specializes in the high-tcnacity yarns which are used not only in auto mobile tires, but in high-pressure hose, fan and conveyor, belts, comprcssoidiaphragms, and other miscel laneous items which must endure rough treatment. Superior fabrics are also woven from Enka rayon by America's foremost weaving and knitting mills. Rayon yarn made by the viscose process consists of regenerated cellu lose, derived from refined bleached spruce, pine, and hemlock wood pulp, or from cotton linters. The cellulose is delivered u> the plant by the pulp manufacturer in rectangular white sheets resembling large desk blotters. Caustic soda is used in a soaking press. Now called alkali cellulose, the material is dropped through a chute to a shredder where cellulose fibers are turned into a mass of small fluffy particles. These'bvhite crumbs" are aged for about two days and are then placed in a churn and treated with liquid carbon disulfide. The white crumbs are thus changed to orange crumbs and the latter are dissolved in dilute caustic soda. The resultant solution is viscose, a goldenbrown sticky viscous liquid with the consistency of honey or lubricating oil. After the viscose is filtered and aged, it is spun through a gold and platinum spinneret which is perfo rated with anywhere from 18 to 720 microscopically small holes of from two- to three-thousandths of an inch 1-2 ?_' 5 w J> a a \ t One of three Elliott 300-hp turbines which are direct-con nected to three boiler-Jeed pumps serving the five boilers. iTgr- POWEHFAX. SPRING 19S4 PAGE 7 Geared turbines, with XE\IA '`.T' variable-speed governors, are used to drive drajtfans. .-1/ lejt is seen one oj three Elliott 201-hp geared turbines driving the induced-draftJans. At the right is shown one of the three Elliott 90-hp geared turbines which drive theforced-draft fans. - . in diameter. The spinneret is im now being installed) supply steam the necessity of an expansion member mersed in a spinning bath of dilute sulphuric acid and various salts. When the viscose is pumped through the spinneret into the spinning bath, for turbine throttle inlet conditions of 400 psig and 720 F and serve, also, pressure-reducing stations for process steam. The turbines may operate in the shell. Each condenser is equip ped with a twin two-stage steam jet ejector. The ejectors are so arranged that any stage may be isolated with f it coagulates because the chemicals straight condensing, or steam may be out interference with the operation otwi in the bath remove from the cellulose extracted for manufacturing processes of the other two-stage element. the caustic soda and carbon disulfide at 20 psig. A rayon plant requires Elliott mechanical drive turbines which heretofore rendered it soluble. large quantities of steam for process are driving the boiler-feed pumps, Thus the cellulose is again in a solid in addition to a nominal steam the forced- and induced-draft fans, state in the form of fine filaments. heating demand. At Lowland, ex and condensate pumps on Units 1 The filaments are twisted and wound traction steam from the turbine units and 2 in the power plant. Incidental on tubes or cones. Between 14,500 is the largest source of process steam, ly at the Asheville plant of American : and 17,000 yd of thread are wound augmented by pressure-reducing Enka Corporation, 10 Elliott steam onto beams approximately 2\A ft in make-up stations. When the Low turbines are employed to drive boiler diameter by 5 ft long for shipment. land plant went into operation, two auxiliary equipment and Elliott These processes, performed on a Elliott 5000-kw turbine-generator steam jet ejectors serve vacuum huge commercial scale, of course re units were installed. By 1951 a third equipment. quire a large amount of very reliable unit of essentially duplicate char Elliott Crocker-Wheeler motors electric power, process steam, and acteristics was installed. Each of these drive the condensate pumps on Low water 24 hours a day. The electric turbines is served by an Elliott 6500 land Unit 3. Seventeen Crocker power consideration assumes critical sq ft surface condenser of the hori Wheeler motors, in sizes from 3 to 40 importance since the Lowland plant zontal two-pass nondivided water- hp, are used in various plant drives, has no external source of power. The box type with fabricated steel shell such as rotary blowers, car shaker, 60-cycle electric power needed in the and cast-iron water boxes. In these conveyor, and numerous pumps manufacturing process is generated condensers, the tubes are rolled in handling viscose, brine, salt slurry, by three Elliott turbine-generator the tube plate at both ends by a etc. A 250-hp, 1765-rpm motor units. Four existing boilers (a fifth is special Elliott method, eliminating drives a refrigeration machine. PAGE 8 POWERFAX. SfHIMi 1954 THE REBEL WARRIOR THE Rebel Warrior is a powerful and compact diesel propelled towboat operating in the Intracoastal Waterway between Port Arthur, Texas, and New Orleans, and up the Mississippi to Greenville, Mississippi, pushing her barges loaded with crude oil from producer to market. Owned by the Black Warrior Tow ing Company of Harvey, Louisiana, she is 5S ft long, 20 ft wide, and draws IVi ft of water. She is powered by two 600-hp, 2100-rpm Cummins diesels, equipped with Elliott turbochargers. L'nder full load of three petroleum barges (10,000 bbl each) the Rebel Warrior has a cruising speed of five to six knots, making her 1300-mile round trip from Fort Arthur to Greenville and return in 12 days. She is one of the most powerful boa ts of her size out of New Orleans todav. Looking 'lown into the enoine room of the Rebel Warrior we see the two Cummins liicseh which are er/uififietl with FAhntt Im bftt'haroers. POWERF/VX. Splttxt; ViU PAGES m LONE STAR'S MODERN PIPE MILL by B. C. DOI.PHI.\ , C.hit f Rim,nth l\rtinitv. I th/rr ami R. F. KIRCH.XF.R, EHion Oi'iij'tmy. Chrtltmd, Ohio This photograph shows the leading end of a partiallyJ'armed pipe as it emerges from the fifth pass of the forming mill. 0_\ February 1. 1953, production of oil country pipe was begun at the new steel plant of I.one Star Steel Coittpanv, Lone Star, Texas. This completely integrated steel mill, representing a Sljn.OOOjOOO investment, includes blast furnaces, open hearths, slab and rolling mills, and two modern electric resistance weld pipe mills. Range of size produced is I Vi in. to 6 in. on the The forming section of the larger millfrom the entry * W. Drives include eight Elliott Crocker- f I 'heehr 75-hp. l !5<( U10rpm d-c motors. .1/ right may he seen a 15-hp. l^fbrpm totally-enclosed fan-cooled hydraulic pump driving motor. ' PAGE 10 :*Z. . Ik3gr . , * .ma]|cr mill, 4 in. to 16 in. on the larger mill. Pipe with wall X_ ihickness of fi in- or less is made from coiled stock, and heavier f i[M. uith walls up to % in. is made from plate. ; [ jnt. pipe, casing, and drill tubing arc manufactured in a , ontinuous line--including uncoiling or depiling, levelling, . cdeeirimming, shot blasting, funning, welding, cutting to ! length. normalizing, reducing, and straightening. Subsequent ' operations are performed in an adjacent building and include threading, trimming, upsetting, hydro-testing, etc. The most vital part of the entire pipe mill operation is performed by the resistance welding machines and associated ; equipment, which is manufactured by Yoder Company of Cleveland, Ohio. The material is formed by means of rolls into a circular section and passed under a pair of electrodes to effect the weld. After welding, the pipe is cut to length using a living cutoff machine. The cutoff machine for the large mill, manufactured by Win. K. Stamcis Company, Pittsburgh, is the first of its kind to accommodate diameters as large as produced on this mill. Drive power for the electric weld mill I hii photograph shows pipe being welded as it leaves the forming mill (to the extreme right) and travels toward the pullout section. Externalflash is cut at the extreme left of the photograph and collected on the "bead windershown darkly at upper left. The large wheels in the center of the photograph are the copper electrodes which effect the weld by passing a controlled current as high as 275,000 amperes through the seam edges. sections is supplied I\ leu :itl voltagcd-cgriier.uor.s lot ailing nearly 3000 kw. Weld power is supplied by two single-phase alternators. the larger one !K-invt 4tttx) kv a at 24tn> volts, 84 Cyril'S, driv en by a sv nchronous motor rated nt 4afi(> hp, 13,200 volts. A-c motors range in size from this 4500 hp down to ! hp, and have a total horsepower rating of over !l,(i(lll. All rotating eiptipmenl for the tune pipe was supplied by F.lliott Companv. with CullerHtuniner control. Ivlecirical engineering for this proj ect was accomplished by the Cuojtcrniivc cllurts of A. J. Hovnton Company of Chicago, Yoder Com pany, Cutler-Hammer. Inc., and Elliott Company. I.miking townft! tin- finish, mil uf tin- smaller /li/i,- m. Elliott motrir-grnerulots .\hin,:ii in this /ilirilngrapli include, nt right foreground, the weld power motor-generator set fnt the smaller No. mill. In the center nf the photo graph are the main power motor-genetnlor sets with smaller exciter iris at left. At thefar end in the center is the weld power motor-generator set for the No. I larger mill. PAGE 12 POWERFAX, SWUNG W3I In this group of motor-genet atnr sets, the 1500-h/i we! power setfor the No. I mill seen in the right furegmun Four in-g sets, exclusive - excitation sets, sene this mil LION CHEMICAL PLANT INSTALLS TlIRBINE-GENERATORS by G. A. ROBGR'I'S, Senior Engineer, Lion Oil Company, El Dorado, Ark. EDITOR'S NOTE: The Autumn 19-SO Poicer/ax carried an article on Lioa Oil Company's refining and petro chemical plants located near El Dorado, Arkansas. The company is constantly making additions and improve ments designed to diversify, improve processes, or reduce operating costs. This article tells how the installation of two tlirhine-generators gives needed electric power with out increasing boiler load. The installation was under the jurisdiction of A. .M. Sprague, chemical superintendent, and F. L. Emert, chief engineer. L DORADO, the oil capital of E Arkansas, is in the midst of the oil- and gas-producing area of the state. Here Lion Oil Company has two manufacturing installations. One, a refinery, in the southwest por tion of the city, produces a wide variety of refined oil products from crude oil. The other, a chemical plant five miles north of the cite, uses natural gas, air, and water as the principal raw materials in the manufacture of nitrogen products. The basic product of the chemical plant is anhydrous ammonia, which is produced by combining atmos pheric nitrogen with hydrogen from steam and reformed natural gas. Although some of the anhydrous ammonia is marketed as such, mosc of the ammonia is processed into ammonium nitrate, ammonium sul fate, and aminoniatcd solutions. The acids used in the production of these agricultural and industrial chemicals are made at the Lion plant. Large quantities of steam are re quired for power and process in the production of these chemicals. At ! I The view atjar right shows the two EUiott noncontlensing I turbine-generator units. One turbine exhausts into the 65-psi header, the other into the 30-psi header, giving independent control and flexibility. Picture at near right shows governor end oj one of the turbines, with operational instruments. j PAGE 14 POWERFAX. SPRING 1954 i: several stages thermal energy is re covered by means of waste-heat boilers., all of which feed into the275j>>ic main steam system. However, most of the steam load is carried by four gas-fired integral-furnace boilers steam and electricity increased ac cordingly. The electric load exceeded the re liable capacity of the plant system. Part of the load was transferred to purchased power. Even with this One exhausts into the 65-psi header, and the other exhausts into the 30psi header. A pressure regulator station was installed between the 30psi header and the 20-psi header. The installation of the two units wider automatic control. Steam for process is used at several relief, the plant system was loaded to capacity. provided independent supply and control of the two process steam pressure levels. The gas reforming Lion's chemical plant engineers pressures, affording operating flexi < process uses steam at 65 psi and 20 showed that additional back-pressure bility and maintenance availability. psi, regeneration of purification solu turbine-generator capacity to pass The 30-psi unit was put in service tions at 30 psi, while feedwater heat- most of the process steam being sup in Decemlx'r, 1952. It has operated ins requires 20 psi. The users of intermediate and low- plied by direct pressure reduction would add at least 2700 kw to the at nameplate rating and on test has demonstrated a capability beyond pressure steam were supplied by back plant generating system, and at the 2000 kw. The 65-psi unit went into pressure mechanical drive turbines same time serve to desuperheat the service the following month. It has and the original turbine-generators, process steam. operated at about three-fourths load. as well as by direct pressure reduction. A combination extraction and The El Dorado Chemical Plant's The original plant was self-suffi back-pressure unit was first con engineering staff of Lion Oil Com cient in electricity. The quantitv of sidered for supplying the various pany performed the load analysis, direct pressure-reduced steam for pressure-levels. Analysis of the steam designed footings, piping, and the process teas relatively small. load at the various pressures indi electrical layout, erected the turbine- Revisions and additions to the cated that the energy recoverable generators, and installed all accesso ammonia plant increased the am from pressure reduction to 65 psi or ries pertaining thereto. monia production rate by 30 per to the lower pressure was nearly Since these turbine-generators op cent. Fertilizer solutions, pelleted equal. Two Elliott 1500-kw back erate without increasing boiler load, ammonium nitrate, and ammonium pressure turbine-generators were in their energy cost is really low, below { sulfate were added to the product stalled. Both turbines operate with the incremental cost on gas-engine hst. The consumption of process 275-psi 540 F steam at the throttle. generators running on the system. 'I he I'll11nil -KlflOD-kva synchronous fowfeirt at the Beam Creek substation, shoeing hn ronnr,lions from trans former honk to lOmlenier. Shirting a by means of mimed rnhngefrom the nnhihtmsfornnr honk in the sieikh.rard. is; ii* 1* BEAVER CREEK SUBSTATION--KEY LINK IN NORTHEASTERN COLORADO TRANSMISSION SYSTEM hr 1 L L.WCFORD. l.lllfltlKl, !>."/ ( MH\U III'fton tillire/U of }>< (lnltnjllu'1, t ' t y (.1 1 P; I I Ii II Bli.WKK CREKK substation on die Bureau of Reclamation's Colorado-Bit! Thompson Project is the main switching station of the Bureau's hieh-vollaee svsiem now serving a widespread area ill northeastern Colorado. located near Brush. Colorado, the substation was placed in operation in March I'J53, the first of its kind to lie installed on this iransinountnin diversion project All lines radiatinti from the Beat er Creek installation are operated at 115 fcv except one, a 46-kv line, now lieinsj connected to the substation. Power is delivered over this network to several stepdown substations supplvinti RF.A and other distribution svxleni.s which serve more than 14.b0d customers in rural areas and in small communities. The importance of switching operations, particularly alter system troubles or outages, influenced the decision to make this station attended. However, operators have no control over system frequencies, and some synchronizin'.; operations must be cleared through the power plant operator- PAGE 16 powkiu-ax. seiu.xy lyst COLORADO In addition to its importance as a switching station, the substation maintains optimum bus voltage to provide the best possible service to customers- A synchronous condenser, manufactured by Elliott Company, maintains a suitable voltage on the ll5-kv system. However, the station Isus voltage is not the controlling factor since loads are not served directlv from the Beaver Creek in stallation. Rather, the distribution substations on the network are the points at which approximately con stant voltage is needed. The over-all svstem voltage can be adjusted over a considerable range by the operator at the substation. Power generated in the ColoradoBig Thompson Project's hydro-elec tric power plants on the eastern slope of the Rocky Mountains is de livered to the Beaver Creek sub station over Bureau transmission lines extending through Greeley and Brighton, Colorado. From the sub station, the power continues over a network of 115-kv lines radiating out to Sterling, Colorado (where inter connection is made with the Missouri River Basin transmission system) and Holyoke, to Akron, Yuma, YV'ray, and Limon, all in northeastern Colorado. These lines supply energy for dis tribution systems operated by REA co-ops and municipalities. Three of the 115-kv lines may cither supply power or represent loads, depending on system operat ing conditions. These lines emanate from the Beaver Creek installation and extend respectively to Greeley, the Colorado-Big Thompson Project substation at the Flatiron Power and jumping Plant, and a Missouri River asln Project substation at Sidney, '?c^ras*ca- The remaining lines ^supply distribution substations only. ^caver Creek installation's bus structure is designed to scven 115-kv transmission one 46-kv line, and the sul> Itation's 40,000-kva, 13.8-kv syn- !diagram J northeastern Colorado 115-kv transmission system tin which the Hruvrr Creek substation is located near the load centers. The system is supplied bjy several hydro stations. An Elliott 35,0(X)-kva, 450-rpm generator senes the Pole Hill Power Plant. Three Elliott J3,33>-kca, 2-tO-rpm generators are installed in the K'ortes power plant in the Kendrick Project, mentioned at lop of diagram, and two Elliott IS,950-ha, Ityt-rpm generators will soon be in operation at the Aleeva power plant, also part nj the Kendrick Project. chronous condenser. Two of these 115-kv line positions are spares for future expansion of the ColoradoBig Thompson Project power system. In addition to the main bus, the sub station is equipped with a 115-kv transfer bus. With the exception of the bay serving the transformer for the 46-kv line, there is one 115-kv oil circuit breaker for each line position. The 46-kv line is protected by a 46 kv oil circuit breaker and the 3-phase transformer is protected by 115-kv fuses. An additional 115-kv breaker is installed between the 115-kv bus supplying the transformer bank and the transfer bus, serving as a transfer breaker if any 115-kv breaker is taken out of service. Three single-phase, 115-kv, grounded wyc to 13,800-volt trans formers arc installed in the switch yard to supply the synchronous con denser. Each transformer has a selfcooled rating of 12,800 kva, which can be increased to 16,000 kva by the addition of cooling fans. Initially, network analyzer studies indicated that the bus at the sub station should be maintained at about 107 kv during periods of light loads. These studies also showed that the voltage should be increased to about 115 kv during periods of heavy system loads. During periods of light loads, the capacity of the trans mission lines tied into the substation causes the voltage to rise at distant I'O'VKnFAX. SI'HING ton PAGE I points on the system. During periods of heavy loads, the lagging power factor of the loads will cause an appreciable drop along the trans mission lines. Accordingly, varying these bus voltages between 107 kv and 115 kv should provide satis factory voltage at system load points. The transformers are provided with taps above and below 115 kv to meet changing conditions in the systems. The transformer bank taps now arc set on the normal voltage (115 kv) tap, and the synchronous con denser is expected to operate satis factorily with this setting for several years. The estimated corresponding range of voltages at the condenser terminals is from 12.6 kv to 14.5 kv. When 14.5 kv at the condenser terminals will not maintain the bus at about 115 kv during heavy loads, the transformers can be changed to the 117.875-kv tap. Network analyzer studies show that, during periods of light system loads, the condenser should absorb about 8500 kvar from the system. At heavy system loads, the condenser will be required to supply about 40,000 kvar to the system. Over a period of several years the loadings arc expected to fluctuate over the full range of capacity of the condenser. The bus voltage is ad justed at intervals as the system load conditions change. The Elliotc Company's synchro nous condenser is a 3-phase, 60-cycle, horizontal, hydrogen-cooled, out door type of machine, rotating at 720 rpm. It is designed for auto matic starting from a master control switch. This switch, the voltage level, and other controls arc mounted on the main control board in the switch yard control building. The machine is equipped with an automatic volt age regulating circuit and an amplidyne exciter for a pilot exciter. A motor-operated field rheostat permits manual regulation of the voltage in emergencies. The main exciter is direct connected at one end of the condenser, but can be sealed off from the hydrogen system of the condenser. The generation of reactive power is controlled by adjusting the voltage regulating control switch for the regulator, which changes the excita tion current of the condenser field by adjusting the exciter field current. Although the synchronous con denser was installed primarily to regulate the 115-kv bus voltage, the automatic regulating network is ac tually connected to the 13.8-kv bus. Accordingly, a current transformer is connected to a compensating net work to correct for the voltage drop through the transformer bank. The condenser is rated at 40,000 kva at leading power factor when overexcited, and at 16,800 kva at lagging power factor when under excited. Hydrogen cooling requires Zi psi pressure (above atmospheric) for this rated output. The 40,000 kva rating can lie increased to 48,000 kva by increasing the hydrogen pres sure to 15 psi. An upper limit con trol circuit is included in the voltage regulating equipment. This permits setting the maximum load that the machine will carry when overex cited. When this loading is exceeded, the circuit automatically lowers the reactive output of the machine. Accordingly, the bus voltage will be reduced if the condenser is. unable to maintain the desired voltage. Short intervals of system over frequency, following faults or other system disturbances, are not expected to cause any disturbance at the sub station. However, protective relays are provided to shut down the con denser if, during system disturbances, the condenser loses synchronism with the generating plants. Other wise, the condenser will return to normal operation when the system is restored to 60-cyclc operation. The automatic regulating equipment is compensated for frequencies con sistently above and below 60 cycles. Without these special compensated regulating circuits, the alternatingcurrent terminal voltage rise would be approximately proportional to any increase in frequency. The amplidyne set, consisting of an electric motor direct-connected to the amplidyne exciter, also has an overspeed switch that causes the automatic regulation to be cut out at dangerous overspeeds. To supply cooling water for the present synchronous condenser anrl for a second condenser planned for future installation, two wells were constructed about a mile from the substation. The supply system con sists of the two wells having a tested producing rate of about 800 gpm, two 8-in., 5-stage, turbine-type pumps, installed in a concrete pump house, an 8-in. supply line to the substation, and an 8-in. return line to Beaver Creek. Each pump is rated 360 gpm at a total dynamic head of 135 fc. Since the water pumped is cxtremelv hard and analysis has indicated that it is scale-forming, a treating system was installed to keep the salts in solution. No attempt is actually made to remove the salt content of the water, and some trouble was ex perienced during the first few months of operation. The treating system consists of a 500-gal. concrete dosing tank, a flow-controlled feed tank, a plastic feed line to each well, and the necessary control valves. Power to operate the pumping plant is ob tained from the 3-phase, 460-volt station service system at the sub station's switchyard. This power is stepped up to 2300 volts and trans mitted to the pumping plant site on a single-pole transmission line. A control cable is installed on the sairie poles beneath the power conductors. Now being installed is a 7500-kva transformer bank and a 115-kv switching bay for connection with the Colorado-Big Thompson Proj ect's substation at Yuma, Colorado. The substation designs provide for the possible addition of a second transformer bank and synchronous condenser. The present installation should be adequate for 10 to 15 years. However, if the present rate of load growth continues, additional facilities will ultimately be required. PAGE 18 POWERFAX. SPRING 19S-1 Elliott totally-enclosed inert-gas or instrument-air , railed motor with lap-mounted water cooler design. HE petroleum and chemical industries have been faced Twith the high cost of initial motor installations and have been looking for means to cut down this cost. One method of cutting down the cost is by using inert-gas or instrument-air-cooled motors on ratings 900 hp and above in hazardous areas instead of explosion-proof motors. The inert-gas or instrument-air-cooled motor is basically what is known as "a totally-enclosed water-cooled motor," but instead of circulating ambient air it uses a closed system to circulate inert gas or instrument air, with water circulating in a tubular heat exchanger unit to cool the gas or air with inert gas or instrument air introduced as a cooling medium at approximately .15 psig or 4.2 inches of water with special seals on the shaft and gas-tight construction throughout to prevent leakage of gas. Thus, only a small supply of non-explosive "make-up" gas is required. Since the inert-gas or instrument-air-cooled motor is available in larger horsepower sizes than the explosion-proof motor, it can be applied to meet the demand for "greater capacity" and when properly installed and maintained is acceptable to the insurance and other inspection authorities. TOTALLY-ENCLOSED INERT-GAS OR INSTRUMENT-AIR-COOLED MOTORS The inert-gas or instrument-air-cooled motor is designed for operation in Class I, Division If "hazardous" areas. The Class I, Division II areas are defined in the National Electrical Code as locations (1) in which flammable volatile liquids or flammable gases are handled, processed where used, but in which the hazardous liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems, or in case of abnormal operation of equipment, (2) in which hazardous concentration of gases or vapors are normally prevented by positive mechanical ventilation, but which might become hazardous through failure or abnormal operation of the ventilating equipment, or (3) which are adjacent to Class I, Division I locations, and to which hazardous concentrations of gases or vapors might occasionally be communicated. POWERFAX. SPRING 19S4 PAGE 1 POWER MODERNIZATION AT DOWNINGTOWN PAPER COMPANY b)' JAMhs Af. l.ARF'h.RT) . Mtehanicat f'.noirurr. .I/A,// lt\w/ . 11 >*/*//<*. Cwiultirtg F.n^tnreri WITH the recent insinuation of two 25(JO-kw turbine-generators and one surface condenser, the Duwningiuwn Paper Company, Downingtown, Pennsylvania, has just completed its program for the modernization of its steam and electric power-generating facilities. The Downingtown Paper Company, manufacturers of high quality paperboard began this modernization program in l1)-!-. At that time, the steam requirements of the plant were supplied by three boiler plants which generated saturated steam at 150 psig. Purchased power and steam engines furnished the power requirements of the mills. Following a detailed survey and study, plans were made for the installation of new steam-generating facilities and the construction of a central boiler, house to replace the individual steam plants. Two 8n,(H)0-llj-per-hr jntlverized-coal-fired steam-generating units were installed to generate saturated steam at 150 psig to supply the plant's steam distribution system. These units were designed for future One of the two 400-gpm boiler-feed pumps is dricen by this Elliott JOO-hp steam turbine, equipped with a built-in pump governor. The other boiler-feed pump is motor dricen. system is installed, together with facilities for burning fuel oil in tfic event of Joss of coal supply. Water treatment is provided by a hotprocess lime, soda, and phosphate system, with oil removal filters for conditioning of returned condensate from the mills. In 1950 the Downingtown Paper Company decided to proceed with the second phase of its steam and electric power program and install the electric-generating system. After a careful study an order was placed with the Elliott Company for one 2500-kw noncondensing turbinegenerator, one 2500-kw condensingextraction turbine-generator, and . one 3000-sq ft surface condenser and f auxiliaries. The units were designed . for inlet steam at 400 psig, 650 F, with the exhaust from the noncon densing unit and the extraction from the condensing unit arranged to dis charge directly into the plant's 150psig steam distribution system. The noncondensing unit is provided with back-pressure control and the con- The induced-draft fans are driven by an Elliott 90-hp steam turbine through Elliott speed-reduction gears. doming extraction unit is provided with compensated speed and pressure control. A tandem, high- and low-flow automatic air-operated pressure-reiluciiig-valve station was installed between the main 450-psig steam header and the 150-psig plant steam header to provide any steam make up for process requirements when necessary. In order to protect the steam engine equipment and certain auxiliaries that were operated from the 150-psig header, all steam from ihe turbines and pressure-reducing valves passes through a desuper heater which maintains a maximum steam temperature of 450 F. With the new turbines, electrical energy is generated at 2300 volts to the main switchgear located in an isolated room adjacent to the boilerturbine room. This main switchgear comprises metalclad units, with 1200amp breakers for 2300-v supply to the main boiler-feed pump and to four 1000-kva, 2300/440-v substations for low-voltage service to each mill. Control instruments are mounted on the switchgear. The new electrical generatingfacil- Pipe hereframes the Elliott turn two-stage steam jet ejector which series the condenser. [ties have been in operation approx imately one year. In this period of time, the operating and economic re sults have been such as to more than justify theaddition and improvements that were undertaken. All design, en gineering, procurement of equipment and supervision of construction was carried out by Albert C. Wood Asso ciates, consulting engineers, in close cooperation with the Downingtown Paper Company. At lejt is one oj tun cooling water pumps driven by an ElliottCrock er-Wheeler 30-hp, 1750-rpm motor, and at right is a circulat ing pump driven by an Elliott C-t!' 20-hp squirrel-cage motorl POWFRKAX, SPRING I9S4 PAGE 23 The Oakjord Compressor Stalion, 25 mites east oj Pittsburgh on the William Perm Highway, is built on three levels. Dehydration find metering equipment are on the upper level. On the second are two compressor buildings, the mam gas piping, and gas scrubbing unit cooling elements, and on the lower level are the office and personnel building, the auxiliary building, and the shop and warehouse building. UNDERGROUND GAS STORAGE AND THE OAKFORD STATION In the auxiliary building which houses the three gas engine generators, theseJivejacket water pumps are driven by Elliott Canker-11 hrfit OO-hp. 1760-rpm motors and the two lube-oil cooling water pumps at the right are driven by Elliott C-U 30~hp, 1750-rpm motors v / / -A \ \ A \ PAGE 24 IX)\VKHFAX. SPRING IPS-l Ii\T the past few years there has been a tremendous increase in the dcnjand for natural gas in the Appa lachian area, and a large portion of this gas ts now supplied from fields in the Southwest. In transporting gas this long distance, it was impractical to build a pipe line large enough to handle the peak winter demands and have it used at less than capacity for the rest of the year. The alternative was to provide a means ofstoring gas close to the marketing area, and the most satisfactory and economical method of doing this has been to use depleted gas-producing formations as natural gas reservoirs. One of the newest and largest of these under ground storage projects is the Oakford Storage Area, about 25 miles east of Pittsburgh, developed jointly hv New York State Natural Gas Corporation and Texas Eastern Transmission Corporation. Gas was originally discovered around Oakford about 1895 in the MurrysviUe sand at an average depth of 1400 ft, and in the fifth sand at about 2200 ft in 1905. In their days of peak production, well flow in the MurrysviUe sand ranged from 10 to 40 million cu ft a day with a rock pressure of 600 psi, and from 20 to 30 million cu ft a day with a pressure of 1100 psi in the fifth sand. The two sands have an estimated capacity of 105 million cu ft. Maxi mum storage pressure in the fifth i, sand is 1200 psi, and in the Murrys2. ville sand is 600 psi. During the , _summer, gas normally will flow from ; transmission lines directly to the sands Mor storage until the sand pressure [builds up to line pressure. Then the ^.Compressors, protected by scrubbers twhich remove pipe scale, sand, and gSJher solids from the gas, take over god bring the sand to full storage sure. There are twelve 2500-hp, vo-cycle gas-engine compressors in *o compressor buildings, any one of hich can be operated as either a or second-stage unit. Four Flhotl C- II" 6t:-liji Sealrdpower motor* rlriir Rmhvrll " Rotonrh'" liYi/riwtir motor mu! jmniji unit* mi the jttcktl It tlh r " Fin-Fan" mohr. nm kih-av seni\<; it,i PAGE 25 4 s w .. Close-up oj the Elliott turbochargers looking at themJrvrn the control end nj the three Worthington l-US-hp gas engines in the auxiliary building. The gas, hot as a result of being compressed, is cooled in a battery of 20 Griscom-Russell K-fin air cooled sections. Air is circulated over these cooling sections by five propeller-type "Fin-Fan" units driven by Elliott C-W 30-hp Sealedpotver TEFC motors. The hot jacket water from the compressors is also cooled in a similar fin tube section, and its four "Fin-Fan" units are driven by Elliott C-YV 60-hp Sealedpotver TEFC motors through Rockwell "Rotocyclc" hydraulic motor and pump units that maintain a constant jacket water temperature by varying the flow of oil through the hydraulic drive, which in turn controls the speed of the fan and the amount of air circulated. After being cooled the gas passes through separators that remove any oil suspended in the gas, through the dehydration plant which removes any water that the gas might have picked up, and finally into storage. In the winter, gas passes through practically the same operation in reverse as it goes out of storage to market. Leaving the sand, it travels through the de hydration plant and into the transmission lines until the sand pressure comes down to line pressure. Then the compressors again take over to maintain a constant line pressure. The gas is always metered as it enters or leaves the station through the transmission lines and also as it enters or leaves storage. All electrical power is produced by three 1000-ku gas-engine-driven generators. These engines are equipped with Elliott turbochargers. In the auxiliary building Elliott C-VV motors drivejacket water pumps, lube-oil cooling pumps, and air compressors. TIRE PLANT REFRIGERATION TURBINE This photograph shows an Elliott steam turbine driving through horizontallyoffset gears an Ingcrsoll-Rand pump which handles the condensing water for a water vapor refrigeration system -in a rubber tire manufacturing plant. Inci dentally, this is but one of several Elliott turbines in the plant. PAGE 26 powkiikw.si'itim; mst ON THE JOB IN CUBA ('OMPAXIA l.MPORTADORA SklJ.TOX, S.A.. i who have been F.lliutt representatives in Havana. C'nli;]. for many years, sent us the photographs, reproduced below, of typical Elliott geared turbines and motors driv ing pumps in sugar mills. They also sent the photograph of their new building showing the Elliott sign (left). This Elliott Crocker-Wheeler 200-b.p, 1750-rpm, open dripprooj squirrel-cage induction motor drives an Ingersoll-Rand boiler-feed pump in a sugar mill at Central Moron, Pina, Province of Camaguey, Cuba. This photograph shows three Elliott SO-hp, 3795/J150-rpm steam turbines driving Ingersoll-Rand 5000-gpm single-stage pumps in the sugar mill of Central Santa Lucia, Orienle, Cuba. These units pump water from the barometric condenser hotwell to the sprayers of the cooling system. When these turbine-driven pumps were installed, the height of the sprayer was increased and a lower water temperature was achieved. Previously the water went direct to the cooling sprayer by gravity. t'owhUKAX. srnt.No PAGE 27 STEAM JET EJECTORS IN THE MANUFACTURE OF ANTIBIOTICS This photograph shows thefirst two stages and a part of the surface-type intercondenser of a three-stage ejector. The intrrcondenser is between the second and third stages. The first-stage ejector, at the left, discharges vertically upward into the suction of the second-stage ejector, which discharges vertically downward into the surface-type inlercondenser. The third ejector stage and aflercondenser are not shoicn in the photograph. The first-stage ejector can be by-passed. (By-pass piping and valve are shown.) This unit serves a large evaporator designed to handle a variety of solvents. When handling solvents with a relatively high vapor pressure, only the second- and third-stage ejectors need be operated. W.l. of the photographs shown here are recent installations of Elliott steam i.~\ jet ejectors of various types in a new plant of a pharmaceutical manu facturer. This manufacturer has used Elliott steam jet ejectors in large numlters for the past 2a years or more. The ejectors serve process equipment handling material that is usually heat sensitive, which means that the evaporation, concentration, and di vine processes must lie done under vacuum. In many instances, the concentration processes require the removal of solvents which are quite expensive. Thus surface-type inter- and aflercondcnscrs are used in order to recover these solvents. As with all such installations, the Filliott ejectors are furnished in sizes and types suited to the sort of material handled, the quantity, and the decree of vacuum to be maintained. PAGE 28 1-OWERFAX. SI-RING 19S4 'Ihis three-stage ejector with tun surface-type intercondensns J u XiO-gnl 'still. I hifirst-stage ejector is in the center of the picture. the second stage in the eight foreground, and the third ,a,,( mostlr hidden hr Ike second. nr smaller, intercondensrr. (h discharges vertically an! and the discharge flange can he seen just I" the left of the center of thefirst-stage diffusei. The barometric condenser at the right is served by the two-stage ejector with sorfoee-typr inter- and ajtercnndensers shown at lejt. pmvknFAX. si'niNn ini PAGE 29 I his i'ita-slagr sti'ain iii r/ntni Irlt/i /rl-lypt' nit: it tautens, i stir, : thr hmttniettiu itiin/i n~ti ill Ihf right, this cipii/nnent a/mahs :,ilii mi niiytlitny boaster mid u lerotnptessnr bnnslei (tint shnitrn in thr /dintogitirh) In s,i;r it large evaporator tnindling large i/uaiititiey of train vapor. 7hr hot difjeienl bnasleis and targ,. Inn`nth h it naidenstr ran hr iisrd in various eombhuilwns In lakt advantage ,,j seasonal variation m eanhng-waler temperature. Snirr only ivater is rrajutratrd in thr still Ibis et/iiipiihnl mi its. Hurt is no mrd it. /., a sinf.iee-type fond, riser. Looking down on a three-stage ejector with surface-type inter- and ajtercondensers. The first- and second-stage ejectors are clearly shown while the third stage is out of the picture at the lop. This ejector unit serves a still designed to handle a variety of solvents. ELLIOTT GENERATOR IN MUNICIPAL PLANT T O keep pace with its always-increasing needs of electric power, the town of VVoodsfield, Ohio, must add to the generating capacity of its power house. Most recent unit is this Elliott 600-kw, 327-rpm generator driven by a Superior 875-hp, dual-fuel, diesel engine. This unit carries the entire day load, which peaks at around 520 to 560 kw, while two smaller diesel-generators handle the night load which averages about 170 kw. In the past, when one of the industrial plants served by the system came on the line, lights would dim throughout the community, but since the installation of this unit, oncoming loads are picked up without disturbance to the system's voltage. Good economy is recorded. PAGE 30 KM'ERFAX, SPRING 1954 pottw/r'rft.Y Wife (on returning from party): Why is it I h,.v a beautiful new evening gown and >u,, never even notice it, but you get pop ped staring at every other woman in the place?*' Husband (sleepily): "Once you know * hat's in the package, it doesn't matter how it's wrapped." Dr. Bigbill: "Well, well (as he met a former pjtimt on the street) I'm glad to see you again, Mr. Brown. How are you this morning?" Broun icautiously): "First, doctor, docs it Cw'st anything to tell you?" \ Judge: "What do you wish to charge against your husband?" i- Wife: "Free love. Your Honor. He ain't * supported me for six years." t* ; Most of us carry our own stumbling block ; around with us. We camouflage it with a L hat. > A mild little man walked into an income tax collector's office, sat down and beamed oo everyone. "What can I do for you?" asked the collector. "Nothing, thank you," ftplicd the little man, "I just wanted to meet the people I work for." Next to being shot at and missed, nothing is S Site as satisfying as an income tax refund. Would you marry a gal whose face was prtttyas a picture? ' if she had the frame to go with '. * Matrimony puts an end to more petti tTa 111 P^k police put together.. lays the woman's work that's rei " most 1'kely what she asked 1 ""band to do. Too many of us are like the old Negro deacon who wound up a long prayer by saying, "Use me, O Lord, use me in thy work--"'specially in an advisory capacity." Backward, turn backward, O Time, in thy Bight--I've thought of a comeback I needed last night. "Gas overcomes girl while taking bach", reads a headline in a Bowling Green, Ky., paper. Then follows the account of the near tragedy; "Miss Blank owes her life to the watchfulness of the elevator boy and janitor ..." Fiance: "Now, tell me the truth, dear. You're sure you never let any other man kiss you goodnight?" Girl: "Positively. By the time they leave me it's always morning." In the middle of a long, drawn out sermon, the preacher interrupted himself to order a small boy, "Wake up your father, Jimmy f" The boy replied, "Wake him up your self. you put him to sleep!" After a long course of treatments had failed, the masseuse sighed to her plump patient: "We can't fight fate. After all, there is a destiny which shapes our ends." Stoop: "They say only one man in a hundred is a leader of men." Droop: "Yeah, and the other ninetynine follow women." A newly-made widow called at an insurance company office for money due on her late husband's policy. Said manager, "I'm very sorry, madam, to hear of your loss." "That's just like you men," she snapped. "Always sorry when a poor woman gets a chance to make a little money." Many a man has made a monkey out of himself by reaching for the wrong limb. Wife; "Do you have a good memory for faces, dear?" . Husband; "Of course I have." Wife; "That's good, I just dropped your shaving mirror." Of course lots of lives have been destroyed by whiskey, but just look at all the boats that have been wrecked by water. . Registrar: "Have you been married before, Madam? And if so, to whom?" Film Star: "Oh, I didn't know this was going to be a memory test!" One evening a young matron was return ing from a First Aid class, and she came upon a man sprawled face dow*n on a darkened side street. "Ah!" thought the girl, "Providence has led me hither to minister to this poor un fortunate." Parking her car nearby, she rushed over and began artificial respiration. Presently the man stirred, looked up, and speaking with difficulty, said: "I'm holding a lantern for a guy working down in this manhole. I ain't sure what you're up to. lady, but this ain't the time or the place." "Dad," asked the small boy, "Why is a man not allowed to have more than one wife?" "My son," replied the father, "when you are older you will realize that the law protects those who are incapable of pro tecting themselves." * First Street Cleaner: "I hear you made a big killing in the stock market." Second Street Cleaner: "Not exactly. I just cleaned up a little along the curb." . -. Gardening--An early symptom oflumbago. POWERFAX. SPRING 1934 PAGE 31 STEAM TURBINES . Turbine-Generator Units--Mechanical Drive Units '. ; ELECTRICAL EQUIPMENT . ' - Motors (t hp to largest)--induction, wound . rotor, synchronous, d-c, brakemotors, gearmo. tors--Generators (all types a-c and d-c)--Motor^ . Generators--Synchronous Condensers--ElectroXrf.j y. ' . magnetic Slip Couplings ^ ` HEAT TRANSFER APPARATUS . Condensers and Ejectors--Deaerators and Dca- v:- *::-/ crating Feedwater Heaters INDUSTRIAL PROCESS EQUIPMENT Centrifugal Compressors--Steam Jet Ejectors-- ; Condensing Equipment CENTRIFUGAL COMPRESSORS AND EXPANDERS Air Compressors--Gas Boosters and Exhausters ' --Compressors and Expanders for Process (Elec tric motor, steam, or gas turbine driven) TURBOCHARGERS AND SCAVENGING COMPRESSORS FOR DIESEL ENGINES Turbochargers for Two-Stroke Cycle and FourStroke Cycle Engines--Scavenging Compressors for Two-Stroke Cycle Engines STRAINERS--FILTERS Strainers (Twin, Single, Oil, Self-Cleaning)-- Filters and Grease Extractors TUBE CLEANERS Cleaners for Tubes in Boilers, Oil Stills, Con densers; for Pipe, etc. . _ COUPLINGS C-W Resilient Flexible DESCRIPTIVE BULLETINS OF ART OF THESE PROD UCTS Will GLAOU BE SENT UPON BEQUEST APPROVED SERVICE SHOPS AND DISTRIBUTORS STRATE GICALLY LOCATED THROUGHOUT THE UNITEO STATES DISTRICT AND BRANCH OpFIC Atlanta 3... :........... 310 Haus-Ho\vrl| Buu[ Boston 35...',.... - - ............. 1330 Soldiers Fields Buffalo 2.\,v.. : ......................... 807 Crosby Bu$ .. Charlotte; N. C. '............. 1817 Liberty LilV* Bu& Chicago 30.... ................WON. PulaskiR Cincinnati 6.. . :";.*.................... 2337 Victory parC. Cleveland 14 . . ------1319 National City Bank Built Corpus Christ!.. ............................... 731 Wilson Builc Dallas.*... ...,*.....................5738 Central Kxpres*. Denver,2. .".f s-v:. . 701 U.S. National Bank Builc "Detroit 26.*Ji ........................ ,820 Dime Build Duluth. V. . . . .. .*................. 613 Providence Build . Houston 3. V ....................... 1209 Hutchins Sa \ Indianapolis 8.." ..............54 West 30th So Kansas.City 6~. v ..................438 Lathrop Build Los Angeles 15..----- t -- .714 W. Olympic B1 Milwaukee ^. ;V V: .........................744 N. 4th So .'Minneapolis 3. .......................... 540 Plymouth Build. Newark 7. LV.-. .................... 4th Avenue and 13th Str New Orleans 13..... i..................256 Lee Circle Build? New York. 13:.................... 271 Church Sir Philadelphia 2.. U .226 South Sixteenth Street Build' Pittsburgh 19. '., ...................... \... .718 Frick Build Portland 5, Ore.__1305 Terminal Sales Build: Rockford, 111....:. .403 Central National Bank BuiLdi San Francisco 4.....'...........................1504 Russ Buid: St. Louis 3. i;...............................1221 Locust Stn Seattle I___ ^:.....................................1101 Vance Build; Syracuse. /........... ....................... .... .State Tower Buildj Tulsa 3......................................910 Petroleum Buildj Washington 1, D. C----- Washington Gas Light Buildi Wilmington 7. ...................... Industrial Trust Buildi Montreal, Que.!................. F. S. B. Heward & Co., L . New Birks Buildi Toronto 2, OnL..................F. S. B. Heward & Co., Li '' Room 1507, 67 Yongc J Havana, Cuba............................ Compania Importadc. ' , Skilton, S.A., Scrafines No. Mexico, D.F.......................... .. .Tccnica y Equipos, $.. '' Monterrey 101-4 San Juan, Porto Rico. ...,...................................... Abar* Warehouses Corp., P. O. Box 23 Buenos Aires, Argentina.......................Mechanical WorEngineering Co., Avrnida Julio A. Roca 7 Rio dc Janeiro, Brazil............Casa Mayrink Veiga, S. ' 17 Rua Mayrink Vciga Santiago, Chile, S.A.................... :. Compania Minrra Commercial Sali Hochschild, S.A., Casilla 31. France, Belgium, Holland.........................Lyddon &. Ci* * 6, Rue De Chateaudun, Paris 9, Fran- Athens, Greece..........Miltos P. Pesnikides, Sina Sirert Honolulu, T. H.. .Hawaiian Equipment Company. Lt Manila, Philippines..................Atkins, Kroll & Co.. In ' 124 Myers Building, I2lh Street, Pore Ar Export Branch............................................New York Offi ELLIOTT COMPANY RIDGWAy, PA.-- Ridgway Division Motors, Generators, & Electrical Machinery AMPERE, N.J.--Crocker-1 Vheeler Division Motors, Generators, & Flexible Couplings JEANNETTE, PA.--Headquarters i? Main Works Turbines, Blowers, Heat Transfer Equipment, Turbochargers, Accessories NEWARK, NJ.--Roio Diaitiart Tube Cleaners . SPRINGFIELD, OHIO-- Lagonda Division Tube Cleaners