Document Rp1rzg7NvLR75o9NMmzOO8V67

pfnvejjftix SUMMER, 19 5 3 VOL- XXXI NO. 2 mljUJhJ bi FM'H - POWERFAX u a iZtnc ofinformation forcnfincrn*nd operaior* >ml elec me power plant*. or in ch*rg* of Hrrial prc~ More than 37,000 copie, are ^buted quarterly with the compliment, of . Company to iu euiiomer* and fnend,.Vldrr- corrrspondence to C W. Kalhfu,. Ed.ior, Elliott Company. Jeannette, Pa. Hew Publications Bulletin PB-1400-4. Elliott Coil Insulation. Describes in detail all essential steps in ihc insulation of 2300-v and 4160-v Class A stator and field coils. Bulletin PB-1400-5. Elliott Electrical Equip ment for the Petroleum Industry. Covers various types of motors and generators, both standard and special designs, espe cially adapted for petroleum service. Ajijic Now Vice President John \V. Anne has been elected a vice president of Elliott Company. He has been with the com pany since 1025 im mediately after grad uating from Pennsyl vania State College. He was assigned to the v condenser department. He became man : 8rT of the condenser department, later ^ manager of the heat transfer and turbine 'nlodepartments. In 1948 he was appointed . sales manager of the Jeannette Division. ft*id Offices x,New address for Tulsa District office, tfccth-e June 1st, is 910 Petroleum Build- Tulsa 3, Oklahoma. ** now Washington district * joined the EUiott Company -twliiuc engineering department in 1937. 1^1941 he was ordered to regular Army 7 ^th rank of captain. After various ^-ihle wartime assignments, he was * from active duty with rank of lieur colonel in 1945 and immediately . as a field engineer to the Washing1 office. T^Carhon is now manager of the A graduate of the Uni.Minnesota he joined EUiott Com- ^^assigned to Minneapolis in Jn August he was transferred to *a Petty Officer First Class f.for three years. " i -** 4- ' *" Company, Jeannelie. Pa. IN THIS ISSUE SOMETH INC FROM NOTHING (Steam Jet Ejector*)............................................. -........................... 4 BEAVER RUN RESERVOIR AND FILTRATION PLANT....................................................................9 RF.V1SED NEMA STANDARDS TO BE INCORPORATED IN ELLIOTT CROCKER-WHEELER MOTORS.......................................................................................... 12 TURBINES IN CAS FIELDS............................................................................................................................... 8ACK.PRESSURETURBINE-CENER.ATOR FOR MICHIGAN CARTON COMPANY............ 14 SILVER-ALLOY BRAZING MAKES BETTER MOTORS .AND GENERATORS..........................16 HAWAII'S FIRST TURBINE-DRIVEN SUCAR MILL........................................................................... 17 ]0,000*KW TURBINE-GENERATOR UNIT FOR FRANKFORT, INDIANA..................................18 10.000-KW TUR8INE-GENER.ATOR UNIT FOR PIQUA, OHIO.......................................................20 HYDRAULIC PRESS FOR BALING STEEL SCRAP................................................................................ 22 BASE-VENTILATED MOTORS FEATURE TEXAS EASTERN'S NEW COMPRESSOR STATIONS ........................... 24 OUTDOOR STATION FOR CALIFORNIA UTILITY............................................................................ 25 HOW A TUBE CLEANER HELPS LICK CAS LEAKS....................... ..................................... 26 BRAKE MOTORS ON CRANES (Detroit HoUt and Machine Co ).........................................................27 BOILER PLANT MODERNIZATION INCLUDES DEAERATING HEATER AND TURBINE DRIVES ................................................................ 28 INTERNATIONAL PETROLEUM EXPOSITION.....................................................................................30 PO ... .................................................................................................................................................................... 31 S. VV. Crisman has been appointed assist ant district manager of the Pittsburgh office. He came with Elliott Company in 1935, was assigned as a field engineer in the Pitts burgh district office in 1937. A first lieuten ant in the Reserve Signal Corps, he was called to duty early in 1941. He became a captain, was promoted to lieutenant colonel, sent overseas, was in the Normandy invasion, and was wounded several months later in Germany. He rejoined the Pitts burgh office in November 1945. J. H. Strickler continues as manager. F. M. Haynes has completed his tour of military' duty (having been called two years ago as a reserve captain in the Army) and has returned as a field engineer to the St. Louis office. Mr. Haynes came with the EUiott Company in 1948. H. D. Mateffy is the new Duluth man ager. Also a graduate of the University of Minnesota, he came with Elliott Company in 1951 and has been in the Minneapolis office since July, 1952. . Howard A. Bach, an engineering gradu ate of Carnegie Tech, who joined the EUiott Company in 1951, has been assigned as a field engineer to the Detroit office. V. A. Peterson, Los Angeles district man ager, is chairman of the reception com mittee for the ASME semi-annual meeting in Los Angeles, where a big crowd-is ex pected, June 29 through July 2. Harry Pastre Harry A. Pastre, pioneer and retired vice president of Elliott Company died May 25, 1953, at the age of 80. Mr. Pastre had told, in the Spring 1951 Powtrjaxr, the story of the early days of Elliott Company. He was associated with VV. S. Elliott before the company was organized in 1901, and in 1908 became Elliott's first salesman. In 1935 he became a vice-president of the company. As Mr. Elliott's special repre sentative, Mr. Pastre traveled extensively, visiting Europe, South America, Mexico, Canada, and Alaska. Up to the time of his retirement in 1943, he was active in numer ous technical, engineering, and fraternal organizations. Gano Dunn Guno Dunn was a graduate--and vale dictorian--of the country's first college electrical engineering course (Columbia, '89). Immediately he joined the recently formed Crocker-Wheeler Electric Motor Company, soon to become chief engineer. During his 20 years' service with Crocker Wheeler, Mr. Dunn sparked a long series of significant electrical developments; the first major electrification in the steel industry, the first electrified printing plant, etc. In 1905, he introduced the first mill type mo tor-forerunner of the present 600 series. At the time of his death, April 10, aged 82, Cano Dunn was president of the J. G. White Construction Company. POWERFAX, SUMMER 1953 PAGE 3 SOMETHING from NOTHING by GEORGE S. SEOUE, Process Division, Elliott Company HAVE you ever seen a magician pull a live rabbit out of a/i empty hut? If so you probably enjoyed it, but did not believe it. You thought it impossible to get something from nothing. Yet, present-day industry reaches into empty space and brings out an amazing variety of products to make your life easier and more enjoyable. Vacuum is indeed the magic hat of industry. Vacuum Is a Tool that you find in your grocery store. ACUUM is one ofindustry's most It gives you penicillin, vitamins, and Vimportant tools. Without it, radio blood plasma. It has a hand in the and television would he impossible. manufacture of the records you buy It turns out the frozen orange juice for your phonograph. Vacuum helps to bring fresh, delicately flavored STANOARO MILLIMETERS Ha vegetables and fruits from the farm and orchard to your table. It figures in the making of a large number of products ranging from atomic bombs and jet engines to costume jewelry'. With vacuum it is possible to do many things that cannot be done under ordinary air pressure. For ex ample, water will boil even when it is cold, and matter that is frozen solid can be dried. Glass, plastics, cloth, and other materials can be coated with metal. Materials can be impreg nated with oil, wax, or plastics. By the use of vacuum, air pockets can be pre vented from forming in clay products; gas bubbles can be prevented from forming in molten metal. And under vacuum, complex organic substances can be torn apart and their different ABSOLUTE VACUUM molecules collected separately. PAGE 4 POWERFAX, SUMMER 1953 What Is Vacuum? Although an important industrial tool today, vacuum remains to many people, something of a mystery. Vacuum is created by removing air or other gas from a space. As the g:t> is withdrawn, the pressure within the space becomes less than that in the surrounding atmosphere. The degree of vacuum attained is a measure of the extent to which the gas has been removed; if it amounts to only a small percentage, a low vacuum re sults; if most of it is extracted, a high vacuum is obtained. If all the gas could be removed, the space would then be entirely empty and the pres sure in it would be zero--a perfect vacuum. In the past, atmospheric pressure was used as the base for measuring vacuum. However, since atmospheric pressure varies with different locali ties and elevations and also changes from morning to night, it has proved to be a poor reference line. In recent years a successful attempt has been STEAM CHEST Aboce and to iht hjt are shown the elements which make up a steam jet ejector. A jet of steam, accelerated through the nogzfe, comes in contact with, entrains and carries away the vapors Jrom the vessel to be evacuated by the ejector. made to bring about a change in the reference line. The practice of speak ing of subatmospheric pressure as a "vacuum"--a relative value--is giv ing way to the more foolproof method of calling it "absolute pressure"--an absolute value. Absolute pressure simply means the amount of pressure about a perfect vacuum. Thus, in the new terminology all pressures, whether above or below atmospheric, are based on a non-changing zero pressure at absolute vacuum. Average atmospheric pressure amounts to approximately 15 psia. This pressure will support a column of water some 400 in. high, or a column of mercury (Hg) approximately 30 in. high. A pressure of 1 in. Hg abso lute means that the pressure is suffi cient to support a column of Hg 1 in. high. When the absolute pressure be comes less than 1 in., it is more con venient to use the smaller units of the metric scale--millimeters of Hg. One inch is equivalent to approximately 25 mm. When the pressure becomes lower than one millimeter, it is con venient to use the still smaller unit called the micron. One millimeter is equivalent to 1000 microns. How Vactnsm Is Produced Within 500 miles of the spot on which you are now sitting, there ex ists a better vacuum than man has ever been able to create. Only 500 miles away--straight up--the vac uum is estimated to be nearly per fect. It's been suggested that all we have to do is construct an air tight pipeline, straight up, and pipe this perfect vacuum into our plants. Actually, somewhat more practical means are used to produce vacuum commercially. Various types of me chanical vacuum pumps can accom plish the job, using pistons or im pellers to do the work. For most applications, however, the steam jet ejector offers many advantages over such mechanical devices. With this relatively simple "vac uum pump," a jet of steam, accel- POWERFAX, SUMMER 1953 PAGE 5 Did you notice this issue's cover design? It is intended to portray, with some artistic license, theflow oj vapors around the nozzle of an ejector. crated through a nozzle, passes through a chamber which is opened to the vessel to be evacuated. Within the chamber, the steam jet comes in contact with and entrains the vapors from the vessel, carrying them away to be vented, or condensed and re covered. In this fashion, a highvelocity jet of steam can produce, within the vessel, absolute pressures as low as 50 microns Hg, equivalent to approximately l/15,000ch of nor mal atmospheric pressure. In effect, the steam jet ejector is a compressor, compressing vapors from below atmospheric pressure up to atmospheric pressure. Like most compressors, the steam jet ejector is often more efficient and economical when the work it has to do is divided among a number of ejector stages in series. As a rough rule, the practical limit of compression for any indi vidual stage is about 10 to 1. This is to say, a single ejector can efficiently compress from approximately 3 in. Hg abs to atmosphere. By joining two or more ejector stages in series, the inlet of one stage being connected to the discharge of the preceding stage, extremely low absolute pressures can be obtained. In general, the lower the absolute pressure (or the higher the vacuum) required, the more ejector stages arc required. For various reasons,' the greatest practical number of suc cessive ejector stages is five, prodiu ing a pressure equivalent to allot .003 in. Hg abs. Condensers arc often interpose between stages of multi-stage eject, units. Their primary purpose is i reduce the load on successive stag, by removing condensables from th vapors being evacuated. Two types of condensers arc en ployed in this service. If it is pet missible to mix the steam and evaci. ated vapors with the cooling watet the barometric condenser is usuall applied. If mixing of vapors an. cooling water must be avoided, th> more expensive surface condenser i used. This is particularly true wher cooling water is not abundant am must be saved from contamination or where stream pollution woulc otherwise result. Frequendy, in addition to so-calle, "intercondenscrs" between ejecto: stages, an "aftercondenscr" is placet at the discharge of the last ejector This is done to save the heat of th steam, to recover the condensate, oto eliminate the noise and nuisanc of an exhaust which is discharge! directly to the atmosphere. Simplest oj the Elliott ejector family--a single-stage ejector. Capable oj producing approximately 3 in. of mercury absolute. Two-stage ejector--two stages connected in series--with discharge o]first stage di rectly connected to vapor inlet ofsecond unit. Another two-stage ejector. On this unit, >. barometric condenser has been inserter between the first and the second stages PAGE 6 POWERKAX. SUMMER 1953 c- Uses of Vacuum -lt Scarcclv a food, drug, or chemical is produced these days without the xl help somewhere along the line, of *r vacuum created by the steam jet ejector. Ejectors arc now applied in i*s hundreds of processes for distillation, ic tlcodorization, crystallization, dea eration, and dehydration; for evapo n ration. vacuum impregnation, and r- u- vacuum cooling. Chemical, food, and pharmaceuti cal industries find vacuum indispen M ru ii n i sable in many manufacturing and processing operations. Just as water Twofive-stage ejectors in a targe pharmaceutical plant. Each unit maintains pressures as Ixjils at a lower temperature on a low as 50 microns on vacuum chambers which arc used to dry antibiotics such as penicillin. mountain than at sea level, so other liquids boil or vaporize at lower temperatures when the surface pres sure on them is reduced. Products part in the food industry. While food processing could be accomplished fruit, lemons, grapes, apples, and even fluids like coffee and milk. By _ which would be damaged at atmos commercially by heating the food, another process, fruits, vegetables, pheric boiling temperatures can be vaporized successfully at lower tem this procedure would result in a loss of flavor and destruction of vicamins. meats, fish, and eggs are first pre served by quick freezing and then peratures made possible by vacuum. By processing under a vacuum, they subjected to evaporation under high An example of this is milk, a heat- retain their nutritive value and their vacuum. The finished product is a s'-nsitive liquid that, for best results, taste approaches that of fresh com powder rather than a concentrated must be evaporated at a temperature modities. This method has promoted liquid. Fresh ground coffee soon be of 125 F or lower, made possible by the growth of the frozen orange juice comes stale in the presence of air be pressures of around 4 in. Hg absolute, industry to the point where it is now cause oxygen promotes rancidity; using single-stage ejectors. Evaporation plays an important concentrating juices of other citrus and non-citrus fruits, such as grape- however, it will remain fresh for reasonably long periods if packed in containers from which most of the air has been removed. Three-stage ejector with barometric con densers between thefirst, second, and third stagesJor the removal ofcondensable vapors. Fice-stage ejector. The three enormous initial stages, known as "boosters," make possible extremely low absolute pressures. Blood plasma and penicillin owe their present state of commercial de velopment largely to vacuum. The blood plasma must be dried rapidly at low temperature to prevent the growth of bacteria and the deterio ration of essential elements. The yellowish plasma that remains after the red corpuscles have been ex tracted is bottled and frozen, the open top bottles are placed in a vacuum chamber and the pressure is reduced to about 0.5 mm of Hg absolute pressure by four- or five- stage ejectors. Globules of penicillin, taken from the mold cultures which produce it, are dropped into bottles and frozen, and placed in a vacuum chamber and the pressure reduced to as low as 100 microns. Both blood plasma and penicillin are dehy drated while in the frozen condition. rOWERFAX. SUMMER 19S3 PAGE 7 -isfcv J STANOARD ATMOSPHERIC pressure MICRONS 10 -----------------1000 07S----------------- 750 0 50 ----------------- 500 0 25----------------- 250 0.10----------------- 100 0.05----------------- 50 001_______ 10 Installation nj tiro three-stage ejector units, serving lien large vegetable nil deodorizers. APPLICATIONS Thermocompressors Gas boosters, ventilating units Conveying of dry products Vacuum cookers Vacuum filters, cloth dryers Evaporators for salt, sugar, milk Chemical crystallization units Refinery and chemical distillation Wood preserving processes Deaeration of clay Detergents and soap produces Pharmaceutical products High altitude test chambers Steam stripping and deodorizing units for animal and vegetable oils Vacuum packing equipment for coffee and other foods and chemical products Evaporative freezing units for various food products Vitamins and frozen fruit juices Freeze drying equipment for blood plasma, penicillin, streptomycin, and other special drugs Evacuating and sealing equipment for refrigeration units, light bulbs, radio tubes, electronic equipment Molecular distillation of complex chemical compounds Molecular distillation is another industrial process that vacuum has made practical. By this method, vitamins are extracted from vege table and animal oils. The petroleum industry also makes extensive use of the process in separating oils, greases, waxes, and the like into molecules which can be tested one by one for viscosity or stickiness at various temperatures, for chemical insta bility, etc. In this manner the pe troleum products can literally be tailor-made for specific applications. Metallurgy is another field in which the use of vacuum is on the increase. Metal casting is a good example. Molten metals usually contain appre ciable quantities of dissolved gases. When the hot metal is poured and begins to solidify, the gases are forced out, forming blowholes in the cast ing. However, if the surface pressure which holds the gas in the molten metal is reduced, the gases escape before the metal hardens. The result is a high-density casting free of blow holes, with more than normal tough ness and ductility, and of improved thermal and electrical conductivity. These properties are of extreme im portance in the building of such things as jet engines for aircraft. In like manner, the clay to be used for forming bricks, tile, and other ceramic products, is placed under vacuum and the air is removed so that the product docs not contain air pockets within the structure and blisters on the exterior surfaces. The use of vacuum during the manufacture of electrical cables and capacitors can increase both their life and their effectiveness. Ifproducts of this kind are subjected to a pres sure of around 0.1 mm of Hg, even the smallest bubbles of air can be withdrawn from between the layers of material and the spaces filled with an insulating compound. This oper ation is generally accomplished by internal heating to drive out all traces of moisture. And vacuum makes it possible to simulate the conditions high above the earth. This procedure is used by aerodynamic engineers in the development of air craft and rockets. Glass, plastics, paper, metal, cloth, and other materials are being coated with thin layers of aluminum, copper, gold, stainless steel, nickel, silver, zinc, etc., by means of vacuum. The objects arc arranged in an air-tight chamber in such a way that the sur faces to be treated all face a common point where the metallic substance is vaporized by passing an electric current through it. Because of the absence of air, the molecules pro duced travel in straight lines and are deposited on the exposed surfaces in an extremely uniform film that can be rigidly controlled both as to quality and thickness. Actually, the list of present-day applications of vacuum in industry is an almost endless one. Yet few of them would be possible or practical without the humble steam jet air ejector. Elliott Company was one of the first to recognize the possibilities of this ingenious vacuum pump and has since designed and engineered thousands of ejector installations. We are proud of our part in the develop ment of an indispensable industrial tool--vacuum. This two-stage ejector instal lation serves a milk evaporator. LIA,. --------- Aerial view oj Beaver Run Darn and Lake} the largest water works aipplj reservoir in the state nj Penn \yUanni. At tin left at van' of dam can be seen the low-service pumping station and at right are the filtration and purification unit*, and htgh-*mire pumping Nation. BEAVER RUN RESERVOIR AND FILTRATION PLANT jVjOT many miles from tin- Elliott Companv Jeannette plant is the recetttlj a ' completed Beaver Run Reservoir and Filtration Plant built by the Municipal Authority of Westmoreland County. This new reservoir has meant that most of the communities in the county arc now served by a single water system instead of by smaller individual water companies which were often unable to meet the growing needs of the residential and industrial users. Located in approximately the geographic center of the county, tin- reservoir impounds 9.2 billion gallons of water and covers an area of 1130 acres. It stretches some 5l/l miles hehind its 90-ft rolled-earth embankment dam and has a shoreline of about 25 miles. Immediately back of the dam is the "morning glory" IVWK11KAX.SUM.UER fJSS PAGE 9 type overflow which discharges sur plus water through a conduit-tunnel under the dam. The spillway de signed with its large freeboard pro vides storage which will take care of a heavy rainfall over the entire 43 sq mi tributary area. Situated on a hill overlooking the dam is the filtration plant and highservice pumping station. This attrac tive stone building is the center of operations. On the left as you enter is a light spacious office, and to the right is a complete chemical labora tory where tests are made on the water approximately every hour. Behind these is the main pump room with the high-service pumps and main control panel. Also in the build ing are the chlorinators, chlorine storage room, heater room, and a room housing auxiliary mechanical equipment which includes three air compressors for aeration, two vertical wash-water pumps, and an auxiliary lighting generator and high-pressure water service pump driven by gas engine for emergency use. The second floor is used largely for the storage of the alum, soda ash, lime and Car lton black used in purifying the wa ter. In the basement is the clear well with a capacity of 560,000 gallons of water. About 2000 ft from the filter plant, located at the base of the dam is the low-service pumping station. In it are four 5!4-mgd centrifugal water pumps, operating against a 120-ft head, driven by Elliott 150-hp, squirrcl-cage induction motors. Oper ating in pairs they pump the rawwater from the reservoir up to the filter plant. These low-service pumps arc remotely-controlled from the main control panel. The filtration process includes aer ation; treating the water with alum, lime, soda ash, carbon, chlorine, and other chemicals as may be required; and the usual mixing, settling, filter ing, and pre- and post-chlorination. The chemicals are introduced into the raw water pipe line before or just after the aeration tank. When aera- tiuit is used, air is introduced into the tank through |H>rinis lateral pipes from the three Compressors driven by Elliott 2<>-hp. squirrel-cage induction motors located in the control build ing. After aeration the water goes to the valve house located in the center of lour purification units and passes through one of these. The plant is so laid out, as to ultimately provide for eight units. The filter medium con iines. These pumps have a total ra pacity of somewhat over 20 mgd against a 255-fc bead ami are driven by Elliott 30o-hp, squirrel-cage in duction motors. There are provisions for a fifth high-service pump to take care of any future demands. More than 140 miles of large-sized transmission and distribution mains have already Ix-en installed in West moreland County. New water supple .1// iif Ihr /limit'i /iltirinii ami /`iwi/iing n/nriitiun.i nrr inntriJhr! fmm thr main enntrnf jifinrl trhii h n Imntr'l in t/ifi ' fi/h'lilir,' stnnr huil'lwg nrrrlnnhing thr ilam sists of 30 in. of sand. The entire lilt<-r o|xt;iuoi> is remotely controlled pneumatically from a central control IkkirI. When the loss of head in the filler reaches the predetermined limit, an alarm bell and light notify the operator who then initiates an automatic washing cycle operation by pressing a button on the control I Hiard. The completely treated water is stored in the clear well. From here tin- four high-service pumps pump the water to a valve head and loop connection to the main transmission lines from the filler house include a 36-in. pipe line extending about "1.00(1 ft to the (Ircensburg-Jeannette distribution system in Jeannette. This line extends an additional Ij.btHi ft as a 24-in. concrete pi|x- to the Adantslnirg Reservoir. Service to the Vandergrift-I.cechburg system is through aliout 3b,I SitI fi of 2b-in. concrete, pipe. Several new industrial plants are moving into this area and one of the important factors in their choosing to locate in Westmoreland County is an adequate water supply. POWERFAX. SUMMER 1953 In the low-service station, there are four motor-driven pumps: motors 150 kp, 1770 rpm; pumps 3650 gpm, 120-ft head. The pump room in the high- " service pumping station is good looking. Floors are of red tile, walls of buff tile, and the motordriven pumps are paintedgreen. Elliott 300-hp motors drive 3375-gpm pumps at 1770 rpm. Three Elliott Crocker- Wheeler, 20-hp, 1170-rpm motors drive Xash-Hytor compressors which furnish airfor aerating water. FOWERFAX, SUMMER 1953 PAGE 11 Ottlii tr in s ih n n .ntrlfc |! !I ;I REVISED NEMA STANDARDS TO BE INCORPORATED IN ELLIOTT CROCKER-WHEELER MOTORS HE National Electrical Manu RATING COMPARISON Tfacturers Association recently Black indicates present frames; red indicates new standards adopted a new set ofstandards. These _____ Hstandards affect polyphase squirrel- HP. 2pole 4pole 6pole 8pole 2- 4- 6- 8pole poie pole pole cage motors in ratings up to and in cluding 30 hp at 1800 rpm. As a result of the new standards, more power will be packaged in less space %-- -- -- 204 182 -- Vs -- 203 182 224 184 10 284 324 326 364 254 L 256L 284L 2S6L OPEN AND FAN- 15 324 326 364 365 256U 2S4L 324U 326L COOLED --a trend of the industry over a period of years. The present schedule calls for frame sizes 182 and 184 to be available January 1, 1954, with the additional required frame changes to follow at approximately five-month intervals per frame size. The program, accord ing to present plans, should be com pleted by late 1955. To assist manufacturers who in corporate NEMA motors in their 1 203 204 225 -- 182 184 213 203 204 224 254 1% 182 1S4 184 213 2 204 224 225 254 184 184 213 215 OPEN AND FANCOOLED $ 224 225 254 284 184 213 215 254 L 5 225 254 284 324 213 215 254U 256 254 7% 215 284 324 254 U 256 326 284 U 20 326 364 365 -- 234U 2861 326U 25 364S 364 -- 2861 324L' -- 30 364S 365 -- 3241 326 L -- 40 365S -- -- 326S -- 20 326 -- 286L 25 364 365 326S J26L OPEN ONLY FANCOOLED ONLY products, we are tabulating critical mounting dimensions on these new frame sizes as well as a tabulation of frame assignments for the various horsepowers and speeds. DIMENSIONS (IN INCHES) FOR SINGLE-PHASE AND POLYPHASE SQUIRREL-CAGE INDUCTION FOOT-MOUNTED MOTORS Number 182 184 Width 3/i* Vis Key Thick ness Vis Vis Length Max. 9 9 Mu. D E F BA H N-W 6% 4% 3V. 2 Va 2% >v,, 2% 7% 4% 3Vs V/a 2% Vis 2% AA V Min. Min- Size of Conduit Vt 2 7/s 2 V. Vs 213 Va Vs 2 io% 7% 5% *Va 2Vs 3% >%7 3 1% 2% 215 y */s 2 10% 9 5% 4 Va 3% 3% *%2 3 1% 2Vs Vs Vs 254U 5/i s/,s 2V* 12% 10% 6% 5 4% 4% "At 3Vs 1% 3% 256U Vis Vis 2% 12% 12% 6% 5 % 5 4% "At 3V 1% 3% 1 1 284U 286U % % % 3% 14 % 3% 14 12% 14 7 7 5% 4% 4% "At 4% y* 4% 5% *Vi 4J/s "At 47/, i% 4y, I'/s I'/s 324U % % 4>/ 16 14 8 6% 5% 5% "At 5V, l7/s 5% 1% ft324S % iy 16 14 8 5% 5% 5% "At 3% 1% 3 i% 326U 326S % % 'A 41/s 16 V. H/s 16 15% 15% 8 8 6% 6 6% 6 5% "At 5% 1% s% 5% l%2 i'/A 1% 3 1% 1% PAGE 12 POWERFAX. SUMMER 19S3 TURBINES IN GAS FIELDS LLIOTT steam turbines are at E work in the gas fields in treating, processing, and cycling plants. They drive all sorts of pumps in many services and exhibit their versatility in their range of steam inlet and ex haust pressures, their easy speed, regulation, and governing arrange ments. These typical installations are _ in Texas and New Mexico. Above lejl--Three Elliott steam turbines driving hot oil pumps in field processing plant. These are heavy-duty, high-back pressure turbines. Mote the simple and elective installation oj the atmospheric relief valves, which are located in the ex haust tines, just ahead of the shutoffvalves. These Elliott steam turbines are driving boiler-feed pumps in a gas-treating plant. And these Elliott steam turbines are driving lean oil pumps in a cycling plant. POWERrAX. SCMMEB isss PAGE U dSk'. -- This vine of the new Elliott Jt/JtJ-kiv turbine-gcnnalor unit also slums, in the background on bahtmy. tin horizontal \t>>rage lank oj /// Elliott JCQ,000-lh-f>er-hr vertical draerating j> - 'heater heater which zcas installed several rears ago ivlnn a //,-. UuiUr fdnnt was put in BACK-PRESSURE TURBINE-GENERATOR FOR MICHIGAN CARTON COMPANY \\ ITH the installation, in April r 1951, of an Elliott 2000-kw turbine-generator. Michigan Carton Company of Battle Creek, Michigan, achieved a nice balance lietwccn pow er and steam-generating facilities. To serve processing and heating demands, the company had been passing a large amount of steam through a pressure-reducing and de superheating station. The exhaust steam from an existing 1250-hp turbine which drives a line shaft was not enough to satisfy process require ments, so the back-pressure turbinegenerator nicely serves as a reducing POVYERKAX. SUMMER ISIS valve with the additional benelil ol generating electrical power. The turbine-generator operates in parallel with the local utility which maintains frequency and takes the electrical load swings. The load on the turbine is controlled by the de mand for low-pressure steam. In winter, with the additional steam heating demand, the turbine gives its rated capacity. The back-pressure regulator controls exhaust pressure exactly to the determined pressure as selected by process steam needs. Back pressure can be set anywhere between 30 and 6b psig, and the regulator controls to within four pet cent of the set pressure. The turbine-generator operates 2 hours a day, six days a week, rhischedulc permitting maintenance or week ends. The Spring 1949 Poicerfnx record ed the installation of a 415 [>sig I toiler, including an Elliott deaerating beau t and turbines driv ing auxiliaries. This Elliott yXHj-kit hack-pressure t generator op-tales in parallel with outside which maintainsfrequency am! takes the elloail swings. Steam conditions at the throttle are Jilt) /-sig, 5*i> F. and the t operate against a back-pressure of .10 to rJ On direct-current machines, the heavy, copper strap compensating-field connections are joined by silver-alloy brazing. The second workman is applying a flux, sometimes used when joining thick sections of metal. Commutator risers, which take both mechanical and electrical abuse, are silver-alloy brazed to the coil ends. Here the coils within phase groups of an a-c motor are permanently bonded together by silver-alloy brazing. PAGE 16 fOWERFAX, SUMMER 193.1 SILVER-ALLOY BRAZING MAKES BETTER 10T0 N electric motor or generator may include hundreds, tome- AL times thousands of electrical connections. Naturally, the strength, soundness, and electrical conductivity of each one of these individual joints is important. A mechanically weak joint obviously is subject to failure, especially under the stresses, forces, and vibrations of service conditions. An electrically poor joint may mean high resistance, dangerously high local temperatures, or outright failure of an essential circuit. Every step, then, in the direction of stronger and better electrical joints, contributes toward a more reliable machine. Such a step is the silver-alloy brazing of connections, as em ployed by Elliott Company. Ordinary "soft soldering," familiar to us all, is convention ally used to make electrical joints. And soft solder is entirely suitable for connections which are not subject to serious mechanical or elec trical abuse. Where more extreme service conditions arc anticipated, half-and-half solder or silver solder is often employed. Both have a higher melting point and produce connections that are generally superior to ordinary solder. However, in certain applications where the electrical and mechanical loads applied to motor or generator windings are unusually severe, a truly permanent bond is needed. In such applications, Elliott Company em ploys not a soldering, but a brazing operation in making electrical joints. Brazing is a method ofjoining two metals by the application of pressure and high temperature. A silver-alloy filler between the two hot metals melts and al loys with the metal surfaces. The result is a joint that is actually stronger than the un-joined metal. In addition, such a joint ac tually offers less electrical resistance than an equal length of the parent copper. Severe overloads and unusual current surges cannot soften or weaken the brazed joint. And, being both strong and ductile, the silver-alloy connection is especially capable of sustaining vibration and mechanical or magnetic shock loads without damage. Elliott Company has been pioneering the use of brazing in electrical equipment for more than ten years. The first appli cation was in submarine propulsion equipment where duty was severe and failure unthinkable. Now, a majority of load-carry ing joints in the larger Elliott motors and generators arc made by silver-alloy brazing. )r|nd generators u hat Is Silver-Alloy Brazing? By definition brazing is: A group of welding processes which produce coalescence by heat ing to a suitable temperature above *) F. and by using a non-ferrous tiller material having a melting point below that of the base metals. The filler material is distributed between the closely-filled surfaces of the joint by capillary action." In the Elliott shops, brazing of motor and generator windings is done bvcurrent-carrying tongs, whosejaws are carbon blocks. These tongs tighdy grasp the two surfaces to be joined. Between the surfaces a thin shim of silver-copper alloy is placed. When heavy current is applied through the jaws of the tongs, heat is quickly induced in the gripping carbon blocks and in the two metal surfaces to be joined. In seconds, the heat is sufficient to melt the filler and Pcrmtt it to alloy with the metal. ^ When alloying is complete, re"%erated water is pumped through -i tongs'This quickly cools thejoint, ; ^aps all the brazing material in the --M for maximum strength and con- Prevents conducting heat gacent insulation. The Elliott multi-stage turbine, showing the reduction gears in the background. Casings house the two reducers installed with the turbines and large gears in rear were used with old steam engine. Total speed reduction--4500 to 6 rpm. HAWAII'S FIRST TURBINE-DRIVEN SUGAR MILL N Elliott multi-stage, noncondensing turbine has the distinction AL of being the first turbine drive for a Hawaiian sugar mill. This installation on Oahu Island replaces a Corliss engine which had driven one of their tandem mills for the last 52 years. The new turbine is rated at 1430 hp, 4500 rpm. A scries of reduction gears brings down this high speed in stages from 4500 to 1150, 1150 to 274, 274 to 23, and finally from 23 to 6 rpm, the speed at which the mill operates. With the new turbine drive, oil in the exhaust steam, an inherent fault of a steam engine, is eliminated. Other advantages, according to the mill superintendent, include the ease of changing speed, the savings in maintenance and floor space, and the ability to operate the turbine by remote control. The cost of the new turbine was about one-third that of a new steam engine. Improvements in arrangement also made during their off-season included moving this mill to a position in a direct line with the existing cleaning plant, thus eliminating four conveyor systems. The turbine installation is completed and in operation. In the foreground of the picture can be seen the oil relay variable-speed remote controlled governor. PAGE 17 10,000-KW TURBINE-GENERATOR UNIT FOR FRANKFORT, INDIANA previous expansion of the generating station at Frankfort, Indiana, was covered by A an article in the autumn 1943 issue of Pouterjax. Just recently an Elliott 10,000-kw turbine-generator has gone on the line in this station. This unit, together with the preceding 6000-kw unit, is shown here. In connection with the new unit, Elliott turbines are used to drive condenser and boiler auxiliaries, as follows: a 210-hp geared turbine on the circulating water pump, a 20-hp turbine on the condensate pump, a 61-hp geared turbine on the forced-draft fan, and a 202-hp geared turbine driving the induced-draft fan. Similar Elliott turbines went in with a new boiler put on the line two years ago. The new Elliott 10,000-kic turbine-generator unit. An Elliott yJThp turbine, operating t3828rpm, drives the induced-draft Jan at 1J60-rpm through a sepa rate terlicaUy-ojfsct reduction gear. I'Ott KHKAX, SUM.MKR lSS PAGE 19 ?.! -- ............................ * ,..... . ' --. ............ ?">!:' Pj.y..UMyMgT'g^ my'<srg? ^5 10,000-KW TURBINE-GENERATOR UNIT FOR PIQUA, OHIO i i X all-Elliott turbine-generator room features the Piqua, Ohio utility. Several articles in past issues ii of Powrrfax have described this plant and its extensions. When first erected in 1 '>34, the plant housed two 4000-kw units. In 1939 another 4000-kw unit was added. A 1946 expansion included a 7500-fcw condensing turbine-generator and a 1000-kw noncondensiug unit which was installed primarily to supply a 150-psig steam-heating main. The year 1951 saw the installation of a lt>,O00-kw turbinegenerator, latest and largest in the station. The turbine is served by an Elliott 12.000-sq ft divided waterbox surface condenser equipped with Elliott twin two-stage air ejectors. Elliott motors and turbines are used as dual drives on various auxiliaries. A comprehensive article descriptive of the latest expansion of the Piqua plant is being published in the June issue of Industry & Power and the July issue of Consulting Engineer. This article by C. J. Lahinan, mechanical engineer, W. I. Barrows and Associates, consulting engineers of Oavton. Ohio; and John P. Gallagher, director of municipal utilities at Piqua, contains a complete discussion of the thinking behind the expansion program. The article is illustrated by photographs and ten charts and curves illustrating studies of load, fuel costs, steam conditions, turbine size, and generating costs. We will endeavor to furnish reprints of this article to interested Power/ax readers. Reversing box end oj the new Elliott 12,(XXJ-sij Jl divided water-box surface condenser which seri es the 10fk}O-kw turbine. Shown in the picture in the foreground is an Elliott 25-hp turbine driving one of the condensate pumps and in the middleforeground is an Elliott 25-hp motor driving another condensate pump. In the background may he seen an Elliott 200-hp motor driving the induccd-dufl Jan. 4- This is how iht Piqua turbine room haA > at picsent with the fJ.HtJU-hr unit in theforegroundJollowrd by the IttHO-hw no/it ondensing unit, a 7SfO.hu unit installed in !')J6, and three JOOO-iu units which went into operation in HIM and ft. >9. .1 close-up oj the new IGjXXCkic machine which was specified to include the next size larger generator. An Elliott Clockct-\\heeler 200-hp, 3600-rpm motor timing a boiler-feed pump. Another boiler-feed pump is driven by an Elliott 200-hp steam turbine. Continue/,I on page 22 ltlWKItPAX. SUMMER 1953 PAGE 21 Continuedfrom p<ige 21 i This 200-hp motor drices the induceddrajl fan. A 75-hp motor or geared turbine may drive the forced-draft fan. This Elliott 200-hp, 3500/700-rpm geared turbine may also drive the induceddraft fan, in dual-drive arrangement. POWERFAX. SUMMER 1953 L HYDRAULIC PRESS FOR RAL E have all driven down the highway and looked at the automobil Wgraveyards, and possibly wondered what becomes of these skeletor of old or wrecked cars after all usable parts have been stripped from them. If you pursued this question, you would find that even these twisted bodies and frames arc not allowed to rust away in peace, but are really a vital part of the hundreds of shiny new cars rolling off the assembly lines in Detroit every day. They arc part of that essential ingredient, steel scrap, needed in the making of new steel. To make it easier and more economical to ship this scrap, the D and J Press Company, Incorporated, of Buffalo, New York, has built a scrap baling press that is large enough to take a modern automobile, frame and all, together with other sheet metal scrap, and compress it into a 2-ft square by 5-ft long bundle weighing about one ton. One of these hydraulic presses, shown operating in the yard of the Lancaster Iron and Metal Company, Lancaster, New York, has a charging box 6-ft wide, 5-ft deep, and 14-ft long. The compression is furnished by two 14-in. and two 17-in. 2000-lb cylinders. The construction is heavy boiler-plate welded, and the box and platens arc lined with 54-in. "High Carbon" steel plates to resist abrasion where the greatest friction and wear occur. The power for this tremendous press is supplied by two 75-hp, 1150-rpm, Elliott Crockcr-Wheeler, dripproof, squirrel-cage, induction motors driving the 150-hp pumping unit. The cycle of compression is only 70 seconds. All work in the operation of this press is performed by the hydraulic cylinders. //,,,/, Crockir-U hcelrr 75-hp, squirnUagc molar J on lop o] n D and J hydraulic press pumping unit. An automobile body being lowered into the charging box. Onec-proud Buick reduced to bale of scrap ready Jor steel mill open hearth. PAGEPOWERFAX. SUMMER 1953 Interior of the U'heelersburg, Ohio, compressor station of Texas Eastern Transmission Corporation shows three Elliott 2500-hp, two-pole induction motors directly connected to centrijugal compressors. These motors, specially designedfor pipe-line service, are completely enclosed and base ventilated. The article below discusses advantages of this arrangement. BASE-VENTILATED MOTORS FEATURE TEXAS EASTERN'S NEW COMPRESSOR STATION! OMETHING new in centrifugal S (blower-type) natural gas com room. Because working parts of such motors must be partly exposed to pressors has been introduced on permit circulation of inside air, a Texas Eastern's pipe lines. Four com room-length brick wall flush with all pressor stations on the company's connecting surfaces serves as a barrier new 30-in. line and one of the two stations near Little Rock, Arkansas, wear a new look result ing from the elimination of the familiar brick wall separating compressors from the electric motors which drive them. The new arrangement is made pos sible by a pressurized motor cooling system which completely isolates motors from air inside the compressor building. A special waterless oil-cooling arrange ment is used on these motors. The air cooled oil reservoir is shown in this inside view of a bearing bracket. Heat-radiating fins lie in the path of incoming ventilating air. This feature eliminates the com plexities of water circulation and the need for water, which is scarce in many pipe-line compressor station locations. At other Texas Eastern centrif ugal station installations, motors are cooled by individual internal fans which circulate air from within the motor room, through the motors and back into the PAGE 24 POWERFAX. SUMMER 1953 against any ignitible fumes shoul they ever be present in the gas-pipin area of the building where the con pressors themselves are located. Dri\ shafts connecting motors and thei respective compressor units opei ate through airtight glands in th compressor building's brick wal' The new-type compressor ste tions feature heavily encasif sealed motors cooled by outsit! air, forced under pressure in ant out through airtight ducts. Thi development permits operatini of motors and compressors in th' same room, conservation ofspace simpler maintenance procedure and makes possible "package' supervision of the entire motor compressor assembly in oper ation. Because heat is dissipated nun effectively by cooler and cleanct -r (the air is filtered before it is circulated through the mown) the lonitc' ttv of motors is enhanced and maintenance problems are reduced. Operating efficiency is increased, lLHJ u-eausc the operator has an over-all view of the compressor nation interior. An incidental ad vantage is that motors operate more quietly. . ^ 54-in. fan, located outside the building and driven by a 15-hp motor furnishes cooling air for all motors in ,he station. The fans force air into concrete tunnels running under neath the compressor buildings. Built into these tunnels are outlets to the compressor motors. Pressurized air is forced up through the opening into the motors. Here internal fans circulate the air throughout the motors to insure adequate ventilation and cooling of all parts. From the motors the air is forced into dis charge tunnels which carry the ventilating air out of the buildings. Although motor ducts arc connected to common intake and discharge tunnels, regulators control the intake and exhaust at each motor so that one motor does not use more than its share of the air intake to the detri ment of the other motors. This intake and discharge of air is a continuous process and, should a station fan motor fail, a stand-by motor auto matically goes into operation. An extra measure of protection is provided by the new centrifugal station design. Motors cannot be turned on until the fan system has been started and all old air within the motors has been exhausted out side the building. Another feature incorporated into the design of the pressurized air cir culation arrangement is the provision for space heating during cold weather by means of grilles and dampers over the exhaust tunnel which allows heat from ducts carrying the motorwarmed air to be circulated within the building. EDITOR'S NOTE: The foregoing is con densed from an article which appeared in a recent issue of The Inch, published by Texas Eastern Transmission Corporation. OUTDOOR STATION FOR CALIFORNIA UTILITY THIS interesting photograph of California Electric Power Com closer, they find the plant is sur rounded by landscaped lawns and pany's Highgrove Station was made even boasts a small lake on the by taking the picture twice. The first grounds. exposure was taken in daylight to This latest addition to the Cali bring out details and the second was fornia Electric System went into a night shot from the same position operation in June of 1952. At present with the lights on. Either by night two 325,000-1b-per-hr boilers supply with these gleaming plant lights or steam to the two 30,000-kw turbine- by day with its unusual desert tones generators. With only four men per of tan, dusty red, blue, and green, the shift needed to operate these units, station captures the eye of the many the plant seems to run itself. De pasing motorists. As visitors come signed and built by the Fluor Corpo ration of Los Angeles, this is the most completely "outdoor" power plant on the west coast. All component parts, with the exception of the operator's control room and the 2400volt switchgear, arc out-of-doors. With this construction we are able to get an unusually good view of the two Elliott deaerating feedwater heaters mounted above the boilers on the boiler-supporting steel struc tures. Sec page 2 for a close-up of one of the deaerating heaters. PAGE 25 HOW A TUBE CLEANER HELPS LICK GAS LEAK! by I. S. WEBSTEB-, Public Service Electric amt Car Company, Xnvark, ,\rw JfT OW would you fix a leak in an H underground gas pipe? The answer would seem obvious-- dig down to the pipe, then patch it or replace it. However, in many urban areas, gas lines lie beneath paved streets and sidewalks, often snake their way among a maze of telephone, electric, and fire alarm ducts, as well as sewer and water lines. Under these circum stances, extensive excavation and repair work can be both difficult and expensive. Some 20 years ago, experiments were begun by some utilities on a new method of replacement of faulty gas service lines which involved the insertion of a rigid or a soft liner inside the faulty service main. This method has now been successfully developed into an established main tenance procedure by the Public Serv ice Electric and Gas Company, New ark, New Jersey. The method employed by Public Service is, very briefly, this. First, the location of offset fittings in the faulty service is determined either from the utilities records or by probing with a rigid snake from the basement being served. Then, a small local excava tion is made to permit cutting the service line near the main. The line is cut and the main is plugged at rfrat point. Then, a 90-lb blast of compressed air is shot through the line from the basement, cleaning away all loose foreign matter. Any fittings previouslylocated are removed. The next prob lem is to ream thoroughly the inside of the service to its nominal diameter. This is the most important step in the entire procedure and is accom plished by using a heavy-duty Elliott tube cleaner. This small but powerful reamer consists of a cutting head driven by an air-driven motor. It is connected to a length of compressed air hose and is pushed through the gas line from the main toward the basement. It must be capable of removing all burrs at fittings as well as inside lap welds, hard scale, tar, and other restrictions. The shell of the tube cleaner motor must be the same diameter as the soft copper tubing which is to be in serted in the old main. It thus serves as a plug gage to insure that all re strictions have been removed from the pipe which might interfere with the passage of the tube insert. The outside diameter of tube cleaner motor and tubing must Ire '/> in. than the old service through whi. the tube is pulled. After the tu; cleaner has been passed through r service line, the line is again blo\ out with compressed air. Next, a small air-driven hoist . windlass is mounted in the excat tioo at the end of the old gas line, flexible cable from the hoist is snak. to the basement through the pi; and attached to the copper tub; insert. An ingenious, expandi gripper capable of an 1800-lb p is then inserted in the end of the tc mg, grasping it firmly. ' The end of the copper tube covered with lubricant to ease passage through the pipe, and t tube is entered into the old sen pipe in the basement. Then the hoist hauls the tube through ; length of the service. Basement a main connections arc then made ing special compression fittings < signed for this purpose. After more than 2000 renew; this equipment and procedure 1 proved to be a very effective fac in reducing costs and man-ho both in normal maintenance w. for long range economic results ; in emergency renewals. While An Elliott "Roto" heavy-duty tube cleaner with universaljoint and drill head reams out scale, tar, and other obstructionsfrom the old service line. Copper tubing, covered with lubricant to ease its pass is entered into the old service line from the bast" fmancial savings of 50 to 65 per cent are very impressive, the increase in production of 350 per cent is of vital im portance to the maintenance engineer today. The fact that service interruptions arc cut 75 per cent by this method is also very important to the operating man and greatly improves customer relations. The necessary special equipment and tools required to realize the economic and physical results mentioned arc available in `'kit" form from the Mulcarc Engineering Company, 53 Park Place, New York City. These kits cover renewals from in. to 1H in. inclusive, utilizing the maximum size tubing with pressures ranging from 4 in. water column to 50 psi. These kits also include detailed step-by-step instructions to produce maximum economic results. Indispensable to this program is the humble tube cleaner. Developed and pioneered by Elliott Company, for removing scale from boiler tubes, the tube cleaner has since found hundreds of uses far removed from its original purpose and certainly never dreamed of by its designers. This tube cleaner Is by far the most important tool in the ' kit required for this operation. and e uss de- wals, : has actor nours work i and ; the This air-driven hoist hauls the copper tubing insert through the old service pipe. Service line and new copper insert can be seen in the foreground. Xvle ingenious, expanding gripper on the end oj cable. BRAKE MOTORS ON CRANES HE photograph shows one of three Elliott Crocker-Wheeler Tbrake motors installed on a Detroit Hoist and Machine Company 5-ton underslung crane. This particular motor, located on the bridge of the crane, is rated 3 hp, 1800 rpni, and it has a 5-lb-ft brake. A 10-hp. 1800 rpm motor with 50-lb-ft brake is used on the hoist and a 2-hp brake motor on the trolley. All motors arc of the wound-rotor to*Uy-enc!o$ed type. POWERFAX, SUMMER 19S3 PAGE 27 Thisphotograph shows Iht low headroom type of boiler plant and eery nicely illus trates how the new Elliott 30,000-lb-per-hr deaerat ing heater was placed out doors on a steel structure. Elliott steam turbine drives are shown below At lejl is a I J-lip turbine driving the newly installed indined-dra/t fan. and at rig! 25-hp turbine driving the boiler-feed pump. The turbines take steam at W psig. id I F and exhaust against t'r pug linck-pres BOILER PLANT modernization includes . . . deaerating heater and turbine drives by J. P. ALLEJi, Field Engineer, Elliott Company, Button, Afass. HE Socony-Vacuum Oil Com- room and a minimum of free space, Tpanv has recently completed the it was decided to locate the deaerat installation of a 30,000-lb-per-hr oil- ing heater outdoors on a steel struc fired Baltcock & Wilcox water-tube Ixnler with turbine-driven auxiliaries ture, thus permitting adequate sub mergence on the boiler-feed pumps as the final step in a boiler plant modernization program at its East without the extra expense of a pent house or a building extension. Special Boston, Mass, tank farm. The boiler plant, previous to attention was given to piping arrange ment to prevent possibility of freezing modernization, included four hori in severe weather. A convenient gage zontal return-tubular boilers, oper board was located in the operating ating on natural draft, with closed room to provide steam- and water- feedwater heater and reciprocating pressure readings as well as remote steam-driven !toiler-iced pumps. The water level indication with high- and first step in the program, completed low-water alarms. Operation has been in 1949, was the installation of an entirely trouble-free and substantial Elliott deaerating feedwater heater fuel savings have been effected by rated 30,000 lb per hr, consisting of a elevation of feedwater temperature vertical tray heater with internal vent using low-pressure steam which would condenser mounted upon a large otherwise have l>ccn wasted. horizontal storage tank. The final step in the program con Since the boiler plant had low head sisted of installing the water-tube boiler in place of two of the old boilers. Since the existing stack was not adequate to serve the new boiler on natural draft, a Prat-Daniel in duced-draft fan direct-connected to an Elliott turbine was installed with a unique arrangement of duct work to fit the space limitations, as shown in the photograph. Also an IngersollRand centrifugal boiler-feed pump ,, driven by an Elliott turbine replaced one of the old steam pumps. A twoelement boiler feedwater regulator, chemical feed pump, and automatic combustion control were included. The turbines take steam at 80 psig, 324 F and exhaust against 10 psig back-pressure for feedwater, oil tank, and general heating. Operation of the new boiler has been very satisfactory and additional fuel savings are !>eing experienced. >/, ft The new Babcock & Wilcox 100-psig, ..v/r. integral-furnace boiler, showing the three forced-draft, steam-atomizing oil burners. Also to the right of the boiler can he seen the combustion control panel. POWERFAX. SUMMER 19S3 PAGE 29 INTERNATIONAL PETROLEUM EXPOSITION! Day before the show opens, R. L. "Bub" Henry oj the Elliott Tulsa office checks the o/>rration oj the outdoor splashprnrf motor water-test display. HESE photographs show a portion ol TElliott exhibit at the International pt leum Exposition, better known as the * Show," which is held in Tulsa, Oklaht every few years. The show, which op. May 14 and continued for ten days, brok previous records for size and attendance. i of the world's biggest industrial displays Exposition covered 23 acres, boasted exhibitors showing equipment and machi valued at S100,000,000. A half-million pi came to view the displays. Elliott Company's exhibit featured a hp outdoor splashproof (weather-prote. motor. This motor operated in a g enclosed "torture chamber" while suffer drenching downpour of water from a set nozzles. Details of the ingenious splash motor enclosure were visible through a parent air inlet chamber and end bract Specifically designed for installation o doors, this motor culminates more than years of experiment, test, and devclof work by Elliott Company. Its cnclosui eludes moisture and dirt from the mot terior, even under the severe operaiini ditions imposed by dust storms, salt blizzard, or downpour. This is accom] without the cost and complexity of t enclosed construction. The Elliott outdoor-splashproof makes it possible lo eliminate costly bu or housings, permitting both motor and unit to operate safely outdoors. No foundation or ventilating ductwork quired. They are operating all over tin try--Montana to Texas. .4 closer view oj the outdoor motor displayduty truck-type windshield wipers were nee permit study of the motor while it opera deluge of water coming from noz'les infmu F PAGE 30 ihWkhkax. si mmku ti jpowerrcr'ox L `-Dad, what's a traitor in politics? Fathrr: "A man who leaves your party f jumJ goes over to another. | goo: -What about a man who leaves an[ ocher party and comes over to yours?" Father: ` He's a convert, son. a convert." * [ Some gals are discreet--up to a pint. Wile: **I didn't like that new secretary of yours so I discharged her this morning." Husband: "Before she got a chance?" Witr: "Before you got a chance!" Ir-te Golfer: "You must be the world's ' worst caddie!" Caddie: "Hardly. That would be too such of a coincidence." A psychiatrist says that talking will cure a lot of our troubles. We don't believe it. Talking was what started most of them in the first place. spray, iplishcd totally- Work--something that when we have it we wkh we didn't; when we don't have it we *i*h we did, and the object of it is to be We to afford not to do any some day. motor lildinff | drive* .s|>cdal The bather's clothes were strewed By the winds that left her nude. a man came along, Aod unless I am wrong, You expected this line to be lewd. is rr* L* COU*" * Young Ez Tike'* wife is a wonder--last year Ac knitted Ez a pair of socks out of an old uZ*? *uit\and now she's knittin' herself *uit out of one of those socks. I with a newly developed interest at wrote to the editor of a big ^ want to get into politics. ^ ta*payers have a party?" ^.editor answered her letter, writing: *** " . lady, very seldom." He worked his way through college, As heroes often do. Now he's back where he started. Working his son's way through. A summer resort is often a pleasant strutting-ground where nobody knows how un important you are at home. A scientist says that in another 100 years there will be no blondes left in this country*. No doubt. It's hard to leave one now. Jim--"What was all the excitement at your place last night?" Tim: "Oh, a girl was playing a violin in her pajamas and a string broke." Jim: "On her violin?" Tim: "Naw, on her pajamas." Seems like those flimsy negligees are becom ing more and more negligible. Asked what he did for recreation if and when he got to town, one of those long, lean Texas cowboys reluctantly confessed, "I most always go dancin' if there b one." "Why, nobody'd guess you knew how to dance,' ' the questioner exclaimed in surprise. "Heck, I can't dance a lick," the cow hand admitted, "but boy I sure like to hold 'em while they do!" "What," said the visitor, "do you have in that lovely vase on the mantel?" "My husband's ashes," she replied. "Oh, I'm so sorry," was the embarrassed rejoinder. "I didn't know that he had died." "Dead? Who's dead? The bum's just too lazy to look for an ashtray." Father: "Daughter, that young man who walks you through the park certainly doesn't look very polished." Daughter: "Well, I'll admit he's a little rough around the hedges." The most believable golf story of the year appeared on the sports page of a Daytona Beach newspaper recently. It read, "At thb point the gallery deserted the defending champion to watch Miss Blank, whose shorts were dropping to the green with astonish ing regularity." When a reporter on a midwestern daily was sent out to round up opinion of the man on the street concerning the modem woman, the first person he queried on the subject was a man who had just passed his 101st birthday. "I'm afraid I can't be much help to you," replied the centenarian regretfully. "I quit thinking about women almost two years ago!" The man who never thought anything of walking ten miles a day now has a grand son who doesn't think so much of it either. POWERFAX, SUMMER 1953 PAGE 31 I--' aii- -'.y" -.'SyjMj PR0DU( '} ~` yj \ - i;;< I TURBINES ^ ;i Steam and Gas Turbines--Turbine-Generator Units--Mechanical Drive Units ELECTRICAL EQUIPMENT . Generators (all types A.C. and D.C.)--Motors ... ^ (General Purpose, and Large, Synchronous, In auction, Direct Current)--Motor-Generators-- . Synchronous Condensers--Electromagnetic Slip - - Couplings . . HEAT TRANSFER APPARATUS Condensers and Ejectors--Deaerators and Dea, crating Feedwater Heaters--Open Type FeedjV *. water Heaters . INDUSTRIAL PROCESS EQUIPMENT Centrifugal Blowers--Steam Jet Ejectors--Con. - V densing Equipment CENTRIFUGAL BLOWERS, COMPRESSORS, AND EXPANDERS Air Blowers--Gas Boosters and Exhausters-- Blowers and Expanders for Process (Electric . motor, steam, or gas turbine driven) SUPERCHARGERS AND SCAVENGING BLOWERS FOR DIESEL ENGINES - Turbochargers for Fijur-Cycle Engines--Centri fugal Type Superchargers--Scavenging Blowers for Two-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 a i/ r-.>v; DESCRIPTIVE BULLETINS OF ANT OF THESE PROD UCTS WILL 6LAOLT BE SENT UPON REQUEST APPROVED SERVICE SHOPS AHO DISTRIBUTORS STRATE GICALLY LOCATED THROUGHOUT TRE URITEO STATES DISTRICT AND BRANCH OFF -- '. Atlantaf -.310 Haas-Howcll fi, Boston .................. 75 Federal . Buffalo2/:^>:... .807 Cro*, B :. Chirfaft^-N.C^l..1817 Ml-- r . - Clcvctnid Tf.*; 1319 National City Bank B Corpun Chirtti. . ` ` Dallas 1 *" ......... 1820 Dime B, Dufudt . .. . .613 Providence fi. Hdtirfna :......... 1209 Hutchinj ; Ind^apolia ^cj^^v^.-..............54 West 30th . Kama, Cttj'6sr$rZ3P?:\........... 438 Lathrop B. . Los Angeles 15i.\iV........... 714 W. Olympt -T; Mm%*pola 3 ................ 744 N. 4th .. -540 Plymouth & : Nesimt -4th Avenue and 13th - v Nei^yoa'l3?t.V.feX.U'..;:...............................271Church ; Philadelphia, 2. .'.\'.'Z26 South Sixteenth Street Bu Ptajfrweyfa.19 i s-s S*c Yj. +./..:..............718 Frick Be ' Portland. 5, Ore, . V" .. 1305 Terminal Sales Be Rockford, 111. . -.. .403 Central National Rank Bl Satt Francisco 4.*. ,*. .................... 1504 Russ Be St. Louis 3,..'.0;7....................... 1221 Locust Scardc ly.:::. ................ 1101 Vance Bu Syracuse-. . -f: .--- I.................... State Tower Bu . Tulsa A .'..i; -- . .910 Petroleum Bu r Washington l,~D.CL. ...Washington Gas Light Bu Wilmington 7... Industrial Trust Bu Montreal, Que.. . F. S. B. Heward & Co. '* t New Birks Bu Toronto 2, Ont.;... F. S. B. Heward Sz Co. Room 1507, 67 Yon Havana, Cuba.*. . ...i..... Compania Import *^3*. Skilton, S.A., Serafines ? Mexico, D.F.^:.^:------Tecnica y Equipas - " 7 . : *"r' Monterrey 16 San Juan, Porto Rico. . .*..........................................A - : Warehouses Corp., P. O. Box Buenos Aires* Argentina \. .................. Mechanical 1 .Engineering Co., Avcnida Julio A- Roc Riode Janeiro, Brazil. . . *. .Casa Mayrink Vciga. . . 17 Rua Mayrink Vei Santiago, Chile, S.A... i..................Compania Mil . - ; Commercial Sali Hochschild, S. A., Casilla France, Belghizn,'Holland.........................Lyddon & ' r 6, Rue De Chateaudun, Paris 9, F China, Siam, Indonesia, Indo-China. Wah Chang . Woolworth Building, New Y Maintaining branch offices in Shanghai, Hongkong, kow. Canton, and Northern China, also in Bangkok, ` Athens, Greece..........Miltoa P. Pesnikides, Sina Sn Honolulu, T. H.. .Hawaiian Equipment Company Manila, Philippines. ..... Atkins, Kroll & Co.. 124 Myers Building, 12th Street, Port Export Branch.............i..................... New York t ELLIOTT COMPANY RfDGWAY, PA.--Ridgway Division Motors, Generators, & Electrical Machinery AMPERE, N-I---Ciicktr-Whetler Division Motors, Generators, & Flexible Couplings JEANNETTE, PA .--Headquarters & XIam Works Turbines, Blowers, Heat Transfer Equip Turbochargers, Accessories NEWARK, N.J.--Roto Division Tube Cleaners SPRINGFIELD, OH\0-Logonda Division Tube Cleaners