Document YGvgr2gKmO9xVQ1D5dR4o3YjV

II11: ! K . .1 C* N> fcio SPRING, 1955 powerfi Volume 33 No. 1 Engineer*' Pre*nt J. H. Strickler, Elliott Company vice president, and Pitts burgh district man ager for many years, is the new president of the Engineers' Society of Western Pennsylvania. This society, founded in 1880 today has an active membership of 1839 it* own club rooms in the lower lobby Aoorofthe William Penn Hotel including a spacious lounge room, offices, and dining room. During his 30 years* membership in the society, he has held many offices: director, junior vice president, and senior rice president. - Lester O. Gregg Mr. Gregg, now re tired, has been re sponsible for many Power/ax articles. See pages 18 and 20, this issue. With an electri cal engineering edu cation and experience as superintendent of a utility plant, and elec.engineer for mining companies, he ! Ridgway Dynamo and Engine Com in 1916. After working on the test he did field service work, and became i engineer at Ridgway. He was transla*sales engineer to the Pittsburgh dist office in 1927 (after Elliott took over *ay) and has been there until he reI on December 31, 1953. pV*y moves tip F. L. Humphrey, Jr., who a year ago was appointed assist ant district manager . of the Atlanta terri tory, has now been made district man- I ager. Mr. Humphrey has been with Elliott since 1938. .' CONTENTS 4 MARTINS CREEK STEAM-ELECTRIC STATION OF PENNSYLVANIA POWER & LICHT FEATURES OUTDOOR CONSTRUCTION {Photo on /rent coctr) 11 ELLIOTT MEN ENCAGE IN VARIOUS GROUP ACTIVITIES 12 RICHFIELD OIL CORPORATION'S NEW 40 MILLION DOLLAR REFINERY 13 STEEL MILL COMPRESSORS (Youngstown Sht & Tub* Co.) l-l DOUBLE-DUTY HOT SAW (York-Gihespie Manufacturing Co.) 15 ELLIOTT MOTORS IN MODERNIZATION PROGRAM AT DECATUR WATER WORKS 16 NEW PLEDGER GASOLINE PLANT RECOVERS FIVE LIQUID PRODUCTS 18 TRIPLETS AT ASPINWALL 19 OLD MOTORS AND NEW IN A MODERN CEMENT PLANT (Peerless Cement Corp.) 20 FORD CITY PROGRESS 22 SINCLAIR'S HOUSTON REFINERY EXPANSION 21 COFFEE-VVASHING MACHINE DEVELOPED IN PUERTO RICO 21 AIRCRAFT PLANT INSTALLS EMERGENCY GENERATOR (North American Aviation) 25 SCAVENGING COMPRESSORS IN CHILE 26 NEW CAT CRACKER (Southwestern Oil Refining Co.) 28 CONOCO AT LAKE CHARLES, LOUISIANA 30 MIDLAND CO-OP EXPANSION 31 POWERCRAX Poaretjax, published by Klliou Company since 1923, is primarily a record of the development of Elliott products and their application in industry. Over 35,000 copies are distributed quarterly to Elliott cus tomers and friends. Address correspondence to C. W. KalbJus. Editor, Elliott Company. Jeannette, Pa. Talk, E. H. Gautier, of our industry engineer ing department in Pittsburgh, presented a paper, "Electrical Aspects of Adjustable Voltage Ore Bridges," at a meeting of the Chicago section of the Association of Iron and Steel Engineers, at Phil Smidt's Restaurant in Hammond, Indiana, on January 4. Richard F. Miaskiewicz, chief engineer, turbocharger division, was on a panel dis cussion on the subject of turbocharging two-cycle internal combustion engines at the ASME meeting at the Statler Hotel in New York, last winter. Dr. M. E. Talaat, engineering depart ment Ridgway works, presented a paper before the AIEE Winter General Meeting in New York February 3, entitled "A New Approach to the Calculation of Synchron ous Machine Reactances, Part 1." Askey Talks Insulation John 5. .Askey, as sistant works manager of Elliott Company's Ridgway works, pre sented a paper on January 26 at Boston, Mass., entitled "De sign and Application of Insulation for A-C Rotating Machinery" before the Twenty-Second Annual Con ference of Doble clients. The week-long meeting was attended primarily by several hundred men representing utility com panies from all over the United States who take advantage of the services of Doble Engineering Company. Doble has de veloped specialized equipment for.testing and also acts as a clearing house for informa tion which has proved most valuable to industry consultants and manufacturers. &PHXMG-! yJeaan*e;tt-e',VP-i Martins Creek steam-electric station oi Pennsylvania Power & Light features-- outdoor construction, quick start-up, low load factor THE service area ofthe Pennsylvania Power & Light Company and its sub sidiary, The Scranton Electric Com pany, comprises about 10,000 sq mi in central eastern Pennsylvania. After installing about 425,000 kw of effec tive generating capacity at its Sunbury steam-electric station during the past five years, the need was felt for new generating capacity in the eastern portion of the system to oper ate less than 4000 hours per year. Planning for the new Martins ('reek station began in 195i. Ground was broken for the initial unit on June 19, 1952, and its 132,500-kw turbinegenerator unit was synchronized with the system on August 13, 1954. Construction of a duplicate unit was started in July of 1954 and this unit will be ready for operation in 1956. 4 U This vine of tin- .station shows to the right the open-air installation of the turfnnv-gaieralor unit and above it the Elliott deaerating feedwater heater. Coal ulus in venter. Filtered water standpipe left of stack. Foundations for A". 2 unit. On the right is the turbine auxiliary hay anil turbine pedestal; in center, mill room; on tejt, a portion oj boiler area showing construction tract: and seal well. 1*91 > At Marlins Creek was found a site offerin'r many advantages. Existing ; t.t.-kv transmission nearby had ca- 1 jucitv to absorb the first 132,500-kw unit's output. The second unit will : require only a 24-mile, 220-kv trans- mission extension. The Delaware 1 River provides ample cooling water for a large generating station. A natural dam maintains a storage pool, and water discharged below it cannvi recirculate. There is ample space for station expansion, switch yards, fuel storage, and ash disposal. The Martins Creek Station was officially dedicated last fall. Located on a 485-acre site on the west bank of the Delaware River near the villag of Martins Creek, about 18 miles be low Stroudsburg, Pa., the station i of outdoor design with only thi principal operating areas being en closed. Each turbine is supplied b' One 1,200,000-1 b-per-hr steam gen erator using pulverized bituminou coal as fuel. Steam conditions at th< throttle are 1250 psig and 950 F. Although located near the anthra cite region, and despite the com pan) s very favorable experience it Other plants burning small-size an gjj&racite, Martins Creek uses bi iunous coal since the fuel con Tptioii of existing anthracite-firet Its exceeds the foreseeable supph fi ti-v. ` -r.; * AX.sramGi9S5 of steam sizes of anthracite on the system, and investment in the addi tional facilities required to burn an thracite or a mixture of bituminous and anthracite could not lie justified for the first twa units. These units are designed to operate at relatively low capacity factor. 1 hi' moderate, steam pressure and temper ature. the altsence of reheat, the small size condenser, etc., were all dictated bv this factor. Furthermore, these two units are designed and instru mented so that they may be shut down i nch night and over week ends and started quickly when required lor the interconnected system load. The station has Ixxn designed for 5 Exhausters andfeeders driven hy Ijti-hp motors. Two exhausters per mill. veyots, ;iiicI Cecil crushers. Removable enclosures are pruvitled lor the traveling water screens at the water intake anil surrounding equipment. Omission of buildings ancl enclosures for major generating equipment, auxiliaries, coal hunkers, ducts, fans, breechings, and pipinir contribute substantial savings. But unlike some outdoor plants, ihe-main condensers, exciters, turbine oil equipment, pulverizers, burners, and many of the pumps are indoors. Olliers, laboraiorv. meeting room, locker and shower room, shops, stores, and first-aid room are all concentrated in a detached office and service building. This building is also built of concrete block and heated Iiv extracted steam or an oil-fired boiler. Its arrangement permits extension in two directions as required. Similar construction provides a central control room on the turbine operating deck for major equipment and switchyards. This room is air conditioned. Enclosed spaces protect operators and other personnel who normally work indoors. Refrigerators and grills for lunches arc provided The two pictures below show draft-fan installations. I here tire two indmed-haft and two jurced-rlrajtJans per unit -constant speed, l ane control. Motors are wratherprotreied; the photograph of theforced-draft fan was taken in a snowstorm. Motor characteristics: for the induced-draft fans. 1230 lip, 9(X) rpm: for the forced-draft fans. 700 bp. 1X0 rpm. 1 his big ventilating fin is one offour driven hr Elliott C-W 20-hp. IfOO-rpm motors, firlntc are station air compressor driven by 73-hp, 1200-rpm motor and two air control compressors driven by 20-hp. 100-rpm motors. I try important pumps located in the turbine room basement ore the. three baiter-feed pumpsJor .\o. I unit driven hr Elliott 25lX`-hp, 3600-rpm induction motors. at the principal operating locations. There are many pumps of various kinds installed at this loeation. Since the first two units are to operate at low capacity factor, a number of mechanical features are somewhat different than would be In the turbine mom basement are the pumps dorra below -- make-up pumps are driven by Elliott dlt-hp. .KrO<)-rpm and 150-hp, ISOti-rpm motors. The ash water pumps, shout in the lower photograph, are driven by two Elliott 5<X)-hp. ISdO-rpm motors. found in a station designed for high capacity factor operation. For in stance, duplication of auxiliary sup ply to guard against plant shutdown was held to a minimum. The condenser basement is only 5 ft below grade to save excavation and subsurface construction costs. Further savings were achieved by using unusually small condensers. Two vertical circulating water pumps are provided at the intake structure for each condenser. Both will operate normally, but one can handle the turbine at full load except i in the warmest weather. Two vertical hot well pumps are provided, each adequate for full turbine load. Cooling water for pulverizer bear ings, boiler-feed pump oil coolers, and compressor jackets and after coolers is taken from the filtered water standpipe and returned to the same standpipe. A motor-driven compressor pro vides air for general station use. A portable gasoiine-engine-driven com- 8 POWEHFAX, SPRING 195S Caught in a snowstorm are the two Elliott 500-hp, 440-rpm, vertical weather-protected motors which driue the circulating water pumpsjor unit .Vo. 7. The location is at the riser. pressor is available as a spare. Compressed air for actuating the numerous pneumatic control devices is supplied by motor-driven carbon ring compressors. Due to the outdoor design of the station, the heating and ventilating problem is very much simplified. The control room and the office and service building offices and laboratory are air conditioned. Separate fans provide forced ventilation to the enclosed spaces in the turbine basement below the operating deck, the pulverizer room, and the feeder and burner room floor. Heating in these spaces is provided by unit heaters taking steam normally from the extraction steam line to the deaerator or from an oil-fired package boiler when the steam generating unit is shut down. Normal operation of screens and wash pumps at the intake is time-clock controlled with supplementary starting / actuated by a pressure drop across the screens. Abnormal , r make-up water required for frequent start-ups is provided -i one 40,000-lb-per-hr evaporator for each unit and a itf'3^0>000-gal condensate storage standpipe. shown by the photographs on pages 4 and 5 the open-type deaerating feedwater heater is installed g^outdoors above the turbine-generator unit. The unit "jSpnsists of a horizontal trav-type deaerating heater with internal spray-type vent condenser, mounted and jjiupported on a horizontal storage tank which provides proximately ten minutes of storage at maximum ntinuous boiler output at normal level. The deaerating JAX, SPRING 1955 T:vo motori drive filtered water pumps (outdoors). i; ri Elliott motors driving lube oil filter pump, right, and lube oil transfer pump, center, with Elliott lube oil twin strainer shown at the left. heater is one of five feedwater heaters in the cycle, receiving steam from the 14th extraction stage of the turbine. The water level in the deaerating heater storage tank is maintained by by-passing part of the hot well pump discharge to the condensate storage standpipe whenever the level in the deaerator storage tank is above nor mal, and returning condensate from the condensate standpipe by means of make-up pumps whenever the water level in the deaerator storage tank is below normal. Make-up water is deaerated by an Elliott evaporator preheater located below the deaerating heater. Controls for boilers, turbine-gen erators, and auxiliaries are central ized in one control room. Super visory control of the switchyard is also brought in to the control room. Exceptions are coal handling con trolled from the crusher house, ash and dust handling from the pulver izer room, and electrostatic precipi tators from separate buildings near the precipitators. Water treating plant controls are located near the equipment. Placing these controls at strategic locations spreads the func tions more logically among operat ing personnel and reduces the cost by a considerable amount. Coal is delivered by rail and un loaded into a 160-ton hopper. A "car shakeout" expedites the unload ing, assisted by oil-fired, car-thaw pits when conditions require. A belt conveyor moves the coal to bunkers or to the storage area. Coal from storage is reclaimed by bulldozing to the same hopper. Bunkers are concrete silos, two for Brimi--Elliott rate water strainer; bryi it two dO-hp, /2lX)-rpm motors dric hydrogen and lube oil cooling water pum Twin strainer in water line to ash hopper. Chlorine booster pump, in water treatment plant, w ith Elliott motor and twin stra, 10 POWERf AX. SPRING c.irh generating unit. These arc 36 ft shutdown is achieved by placing most with across-lhe-line starting. Motors i,, diameter, 75 ft high, and hold vital equipment within enclosed space located indoors are standard drip- ] >,-,o tons, each. Two silos hold where heat is provided. Removable proof; outdoor motors are completely- , nou"h coal to operate their generat- enclosures not normally heated are enclosed or weather-protected. ill(, unit 40 hours at full load. Thirty- held altovc freezing by electric Pennsylvania Power & Light inch vertical pipes drop coal from heaters. Outdoor pipelines have Company published two excellent ihese silos to the coal feeders. After heating cables beneath the thermal books on the Martins Creek station pulverizing, coal burns in 12 hori insulation. which were available at the time of zontal burners per boiler. Elliott motors, ranging in size the station dedication. Both books Coal is pulverized by two 10-ft from W2 10 2500 hp, drive pumps, were of 9 in. x 12 in. page size, i inside diameter by 11-ft long ball tube mill type pulverizers, fed at fans, compressors, and other auxili aries in the station. Many of these printed in two colors. One 20-page book told the story of the plant ( i each end by a table feeder auto arc shown in the photographs re simply for the general public. It matically controlled by the coal level produced here. carried a dramatic story emphasiz in the pulverizer. Two exhausters All motors 250 hp and larger are ing employees which the book called per pulverizer supply pulverized coal supplied direct from the 4-kv bus. the "company's biggest asset"; it to 12 horizontal turbulent burners Other motors down to 75 hp arc con indicates the pride of the company- mounted in two rows in the front nected to one of the three 480-volt in its more than 86,000 stockholders. wall of the furnace. load centers, each load center being The other book, 32 pages and cover, The freeze protection system for supplied by a 1000/1350-kva dry- gave a more complete and technical this plant is more elaborate than is type transformer. One of these load story of the plant and is illustrated by found in" the usual outdoor plant be centers is located in each of the tur drawings showing arrangement of cause the plant is designed to be shut bine, boiler, and coal crusher house the equipment, hert balance, wiring down at night and over week ends. areas. Motors smaller than 75 hp are diagrams, as well as numerous photo It is, therefore, more susceptible to supplied from any one of the 13 con graphs, and a big centerspread freezing than a plant operating veniently located 480-volt contactor aerial view. It gives a detailed list of "round-the-clock." cabinets. All motors, except for a few- equipment, as well as maps of the special types, are induction motors company system. Elliott men engage in various group activities Gedit Union Handles Big Money These men, the officers, directors, and committeemen of the Elliott Company Employees Credit Union, Jeannette Works, have the responsibility of handling a con siderable amount of money. Members pay in $30,000 monthly by payroll deduction. Chartered in 1935 with 25 members and $125 in assets, the Credit Union now has 500 members and $562,717 in assets. Almost S2,000,000 in loans have been made. Thomas A. Smith, Jr., seated at left, is his tenth year as treasurer. R. E. . Urt^ner standing third from left, is servu*g his 20th year as an official on the credit committee. Councilman Honcfenger This is a meeting of the City Council of University City, suburb of St. Louis, Mo. Councilman at extreme left is none other than H. W. Honefcnger, Elliott district manager, who, besides being very active in engineering circles, as noted recently in Powerfax, also finds time to serve his community in this way. Elliott Men at Tappi Meeting This photograph of Elliott Company men in attendance at the ninth engineering conference of the Technical Association of the Pulp and Paper Industry, in Phila delphia last fall, was run in the December issue of Pulp & Paper. Shown, left to right, are J. R. Lemmon, district manager, Phila delphia; H. W. Kinsel, district manager, Boston; H. D. Moll, H. S. Mills, and W. M. Morley, Philadelphia; C. L. Harvey, Ridgsvay; C. L. Hoebel, New York. iiS>.WEMAT' SPRING 1955 11 i A major expansion program at the ing and service unit at the Watson been diverted to conversion II Richfield Oil Corporation's Watson Refinery, Los Angeles, Calif., was refinery. While some units of the re catalytic-cracking processes wit finery are new, some were expanded resultant increase in gasoline y completed in mid-1954 when a new and others modernized; so that the and quality. . 63,000-bbl-per-day fluid catalytic- result is practically a new refinery. Another significant change in cracking unit was brought on stream. All reduced crude is fed to the new "new refinery" as compared to Almost five years of intensive study, 60,000-bbl-per-day vacuum still for "old" is the diligence with wl detailed engineering, and, finally, ac separation into a distillate feed stock light gases previously lost to fuel tual construction went into this pro for the new fluid catalytic-cracking have been recovered and conve. gram. unit and an asphalt which is ther to high quality gasoline componc The catalytic-cracking unit, largest mally vis-broken in combination unit The gas plant of the new fluid of its kind on the West Coast, repre heaters. Thus, a large portion of the not only efficiently recovers fh sents the heart of a 540.000,000 ex refinery's stocks which previously cracked gases, but all other crac pansion and modernization program were converted into gasoline and fuel gases in the refinery are routed to which affected almost every operat oil by thermal cracking have now unit for final processing. To fun Close-up showing a good portion oj Richfield Oil Corporation s Watson, Calijornia, refit \ !i 12 t- POWERFAX, SPRING process the recovered gaseous constituents, a new 2000-bbl- per-day catalytic polymeriza tion unit was included as a part of the refinery expansion. Alkvlation unit capacity for the production of the chief constituent of aviation gaso line from recovered gases was increased by 50 percent. In addition to these changes in basic processing and the new units involved, another major change involved re vamping the combination units to increase their crude More than 100 Elliott steam turbines ranging in sizefrom 2 hp to 600 hp are on thejob at Richfield Oil Corporation's new Watson refinery driving process and water pumps, also fans and compressors. charging capacity by a total of 20.000 bbl per day. With the construction of any new processing units or redesign and modernization of existing units, a great deal of new and expanded Steel mill compressors auxiliary services are required. Rich field's recent refinery expansion pro gram required large expenditures for these added auxiliary services. In addition to utilities, field piping, storage and related items, new shops, and a warehouse were provided to service and maintain the facilities. Elliott steam turbines in sizes from 2 hp to 600 hp drive all sorts of pumps, fans, and compressors around the Watson refinery. A typical line of these turbines is illustrated. Turbines in the plant operate at three steam pressures. Some take steam at 600 The installation below shows two Elliott 800-hp, 180-rpm synchronous motors driving Ingersoll-Rand duplex air compressors in the Indiana Harbor Works of The Youngstown Sheet & Tube Company at East Chicago, Indiana. The two air compressors supply the general air requirements for a new cold-reduced sheet mill which cold-rolls sheet steel at the rate of 40,000 tons per month. The compressors also may supply emergency air supply to a nearby tin mill. With both compressors operating, the complete requirements of both tin mill and sheet mill may be supplied, the tonnage capacity of both plants being 120,000 tons per month. Air requirements include air cylinders, air hoists, air lifts, also emergency cooling and cleaning of equipment. : psig from the newest boilers, exhaust ing at 150 psig. Many use 150-psig . P: steam, exhausting at 25 psig. Some V . operate on this 25-psig steam. ^ans k*r thc ncw cooling towers drjven by 36 E1[iott c w 60_hp> Lt-il four'Ple. explosion-proof motors. iEOmMrj MOTE: Abooe i, pratticdlj SraW/rom Petroleum World and Oil. &*- - SSSSJA^.SI'RING 1955 f tfy f I i i :: This new automatic 48-in. hot saw is a combination crosscut and drop capable oj cutting two 7-in. by billets side by side in approxima, nine seconds. Tork-Cillespie makes saw in sizes both larger and smai Double-duty hot IN 1948 James and Charles Mac Gregor founded the York Engineer ing & Construction Company of Pittsburgh on not much more than the proverbial shoestring. Both Mac Gregors had had experience in the steel industry, and the new company specialized in designing and building steel mill equipment. Their premise was that millions are spent on high speed production mills, and yet the intermediate equipment leading to or from these mills Is too often left in antiquated form. Since standard equipment would not usually solve these problems, there was an oppor tunity for a company that would spe cialize in the building of automatic handling equipment to meet the needs of individual plants. As business grew the company ex panded and in 1951 the Gillespie Manufacturing Company was pur chased and York-Gillespie Manu facturing Company formed. In the six years of the firm's existence their family of intermediate steel mill equipment has grown to include au tomatic or semi-automatic manipu lators for round, flat, and square products, billet feeders, cooling-bed straightening combinations, billet, slab, and strip grinding machinery, coil handling, loading, and weighing equipment Tor rod and bar mills. Standard basic-steel equipment such as hot saws, shear gages, scrap balers, ingot cars, cinder ladles, and rolling mill tables arc also products manu factured by York-Gillespie. One of their latest developments an automatic hot saw designed at built for high-speed, high-produ tion cutting of steel products. T1 saw is a combination crosscut at drop saw for cutting billets, slal structural products, etc. It has ; automatic hydraulically-opcrao saw feed, and special feedback co trols that provide constant use maximum horsepower regardless the varying thickness of the mater being evil. The 48-in. saw, shot above, with a 150-hp motor dri\ is capable of cutting two 7-in. by 7-i billets side by side in approximate nine seconds. All the motors and co trol equipment for the saw, were fi nished by Elliott Company's Indt trial Motor Division. This photograph of the shop test set-up of the hot saw gives an excellent view of the Elliott C- IV motors that power the saw. The large 150-hp 7200-rpm motor in the upper right is the saw drive. In the lower right is the 20-hp /200-rprn hydraulicfeed pump motor. In between these is a % -hp 1200-rpm motor driving the lube oil pump, and at the left is a 20-hp 3600-rpm motor driving the water spray pump. 14 !! ?  In the remodeled high-service pumping room, the two Elliott 600-hp, J200-rpm motors are driving the 10-mgd pumps. I'he next two in line are Elliott SOO-hp, 1200-rpm motors driving the S-mgd pumps. The 5-kw overhung exciters protrude like nosesfrom each motor. Elliott motors in modernization program at Decatur Water Works by Ceroid L. Davis Plant Superintendent Decatur, Illinois, Water Works The city of Decatur, located about 175 miles southwest of Chicago in the midst of Illinois' famous corn belt, has a population of approximately 66,000. Its citizens together with its industrial plants, consume an average of 10 million gallons of water daily, which is supplied by the Decatur Water Works. The city has had its own steam-generating plant and water works station since 1871. Following the trend of modernizing facilities for more efficient plant operation, in 1050 the water works was fully electrified using purchased power. This meant the end of the large old steam-driven reciprocating pumping equipment which had been in operation for 40 years. Installed in its stead were two 8-mgd and two 10-mgd high-servicc Ingcrsoll-Rand centrifugal pumps driven respectively by two 500-hp and two 600-hp, 1200-rpm Elliott synchronous motors. For low-service pumping two 12-rngd I-R pumps were installed, each driven by Elliott 75-hp 600-rpm motors. An emergency stand-by diesel generator was purchased. This new equipment has been in operation approximately four years and has shown a great saving in pumping costs. Manpower needed for plant operation has been more than halved, and the cost of purchased power, plus fuel oil for heating the buildings, is still less than the plant's former coal bill. The motor-driven pumps have now been in use more than 25,000 hours with no repairs necessary to the motors and only replacement of packing in the pumps. IS New Pledger gasoline plant recovers five liquid products 1 HE Southern Production Com pany, Inc., recently put into service a natural gasoline plant in the Pledger field, some 60 miles southwest of Houston, Texas, to take care of in creased gas production in that area. The new Pledger gasoline plant, which replaced an older one, is one of the largest absorption plants in the country, capable of processing more than 190,000,000 cu ft of wet natural gas per day. From this amount of gas, the following approximate quantities are obtainable: 81,335 gpd of 10 rvp gasoline, 91,070gpd ofLPG products, 14,150 gpd of isobutane, 11,310 gpd of kerosine, and 1910 gpd of fuel oil, leaving 184,773,000 std cu ft per day of sales gas. The plant was engineered and constructed by Stearns-Roger Manu facturing Company. Wet Pledger gas, directly from the wells, arrives at the plant at a flowing pressure of 2000 psig and at a tem perature of 115 F. From the Sugar Valley field, a second stream of wet gas arrives at the plant at a pressure of approximately 600 psig. In the gas-processing portion of This Ellintt llXiJJUO-lh-jitr-fir deaerating feedwater heater in the stfnm plant nsrs steam from the ft!>-png exhaust svstrm anti takes water /ram em/denser hot wells. 16 .Another view oj one oj the Elliott ojfjO-hp multistage turbines driving llir lean oil pumps. The turbines exhaust upward to Elliott 1100-sqft surface condensers shown in the background. Simplifiedflow chart oj the Pledger plant, below, shows process routine, products made, and the various refining steps. This cut is used courtesy of The Petroleum Engineer which, in its February issue, chose this plant m an example of the very best and most modern design and construction. This photograph shows the two Elliott 2100-hp, 4450-rpm, multistage steam b turbines which drive the lean ail pumps. \ These pumps discharge to absorbers at three pressure levels: 400, 700, and 1450 psig. Turbines have variable-speed governors and uncontrolled extraction. the plant the desirable components of the incoming gas arc recovered by the conventional absorption method, the equipment consisting of ab- voiyawi utijj Mill rich oil flash tanks, and a dr dehydration plant. The distillation portion of the consists of three sections operat conjunction with one anothe absorption oil distillation systei condensate system, and the oil f>ing system. The fractionation portion i plant is where the recovered 1 ' j ' l&WEKFA*, spring 1955 17 This Elliott 287-hp, 6760-rpm steam turbine drives a centrifugal compressor. Turbine takes steam at 305 psig, 522 F, exhausts at 60-psig back pressure. ' carbons arc separated and blended to meet final product specifications. Included in this portion are the de methanizer, depropanizer, stahilizer, and butane splitter. Actually the interaction of the var ious processes is quite complicated, as shown by the "simplified" flow chart on preceding pages. The steam-generating system for the plant consists of three intcgralfurnacc-type boilers. Each boiler will produce 42,000 lb per hr of steam at 305 psig and 522 1: total temperature at the superheater outlet with an ap proximate drum pressure of 335 psig. Two boilers take care of the normal steam demand, and there is about one complete boiler for stand-by. High-pressure steam is used in the primary steam reboilers, turbines driving the high-pressure lean oil pumps, the air ejectors, and several other pumps. The exhaust system from this high-pressure system is handled by two 60-psig systems, one "clean" and one "dirty." Steam at 60 psig serves as stripping steam for gas heaters and in the deaerating feedwater heater. The pictures show that the highpressure lean oil pumps are driven by Elliott multistage steam turbines, which in turn arc served by Elliott surface condensers. Two water condensate systems arc employed in' this plant, a "clean" and a "dirty" system. Two headers arc provided for the clean system, be cause of the difference in the temper ature of the condensates. From the hot well of the surface condenser serv ing the high-pressure lean oil pump turbines one header handles only this hot well condensate, which is relative ly cool, goes through heat exchangers and directly to the deaerating heater in the boiler plant. Depropanizer re boiler condensate, also condensate from the butane splitter (reboiler), and from the gas heater that re generates the dehydration agent, all are taken via the second clean header, as a liquid but at a temperature not far below boiling and goes first to the condensate flash tank, next to the condensate skimmer tank after being cooled enroute. The condensate skimmer tank is a vessel maintained at essentially at mospheric pressure, and the dimcondensate header collects and sends into it condensate from the different still accumulators, the sales gas heater, and the heater on the fuel gas line. Here the hydrocarbons remain ing in the condensate are removed, cither as liquid or as vapor escaping to the atmosphere. Water from this skimmer tank then goes to the oil re moval unit where more oil is removed, the condensate is filtered and goes to the boiler feedwater storage and eventually into the deaerating heater. This boiler feedwater tank also re ceives the make-up water directly from the w'atcr-treating system. Triplets at Aspinwall ThIS photograph shows two of three Elliott 600-kw, 360-rpm generators installed in the electric plant of the borough of Aspinwall, near Pittsburgh, Pa. The generators are equipped with chain-driven exciters. The engines are Worthington six-cylinder, dual-fuel engines equipped with Elliott turbochargers, one of which may be seen at the rear of the engine on the right. The borough of Aspinwall first operated a steam plant. When it became obsolescent, boilers and steam turbine-generators were removed and replaced by these diesel units. The changeover was done, very ingeniously, without interrupting service. 18 POWERFAX, SPRING 1955 , old motors and new in a modern cement plant I.\' the winter of 1926, an article in Powerjax stated that ci''ht Elliott synchronous inotors had recently been in stalled in Peerless Cement Corporation's Detroit plant. These included four 500-hp motors driving wet ball mills * and four 650-hp motors driving dry ball mills. Recentlv, while additional Elliott equipment was be ing installed in the plant, photographs of these old motors shown here were taken. It can easily be seen from the appearance of these 30-ycar-old motors that they have Itcen well maintained, and their service record shows that this maintenance has paid dividends. Since 1925, when these motors went into service, only one 500-hp motor has needed any major electrical repairs, even under this difficult service. The Peerless Cement Corporation was founded in 1897 and has plants in Detroit and Port Huron, Michigan. A view oj the most recent Elliott 350-hp synchronous motor to be purchased by Peerless, taken in our Ridgway shop prior to shipment. It is the drive Jor a Bradley Hercules pulverizer mill. Due to the crowded location oj this motor in the Peerless plant an installation photograph could not be taken. These two plants produce 4,000,000 barrels of cement clinker annually, approximately half at each plant. Also, the company has just recently purchased land for a new from this point on until the cement is finally processed, they have numerous dust collectors to keep dust to a plant in Detroit to produce an additional 1,000,000 minimum. Today the largest source of dust in the plant banels. It is interesting to note that while most cement is in the storage silos where dust is raised every time plants are in remote locations because of the difficulty of cement is put in storage or taken out to the packhousc 11 dust control, one Peerless plant is now located within the where bagging machines package the cement for ship city limits of Detroit, and the new plant will also be with ment. However, the fact that the city of Detroit has given in the city limits. The plant is subject to a city air pollu- a permit to the company to build a new plant inside the lion ordinance which allows no more than .3 of a grain of city limits is proof that Peerless has its dust problem dust per cubic foot of exhaust gas from the kilns. An under control. electric precipitator between the kiln exhaust fans and The largest piece of Elliott equipment to be installed the stack, operating at 95 percent efficiency, is reducing in a Peerless plant recently is a 350-hp, 400-rpm high- the grain loading well Mow .3 of a grain per cubic foot. torque synchronous motor driving a Bradley Hercules The kilns, of course, are not the only source of air pulverizer mill at Port Huron. There are also a large pollution in a cement plant. Since Peerless uses the wet number of smaller Elliott C-VV motors on equipment in process in making cement, they do not have any dust the Peerless Detroit and Port Huron plants as well as a problems until the ingredients reach the kilns. However, surface condenser and deaerating heater. This line ojjour Elliott 500-hp, ISO-rpm synchronous motors driving the wet ball mills has been in operation since 1925. .1/ right is one oj the jour 650-hp, ISO-rpm synchronous motors that drive the dry ball mills, installed at the same time. 7his view in the Ford City plant shows /nuts nj all /'our generating anils. I he latest unit installed is the one on the right, also shown in lower photo, opposite page. At extreme lejt mar be seen the piping of a J62-kw unit installed in 1911 <close-up apposite). .11 left is an Elliott l<185-kir generator driven by 11 orthington 15-IO-hp diesel engine, also equipped with Elliott turboeharger. In the deep background is the Elliott .TiQ-ktv generator (also driven by Worthington diesel) whieh was installed in 1956. Shown standing in the background is Albert M. Afuhney, superintendent of the light plant. Ford City progress FoRD CITY, PA. is located about 40 miles up the Allegheny River from Pittsburgh. Its light plant began operations in 1900, generating its power entirely with gas engines using natural gas as fuel, since Ford City was located in a natural gas field. The first diesel generators appeared when the gas supply began to dwindle, and at first they were required to operate in parallel with gas-engine-driven generators. At present, four diesel engine generating units are in service, being installed in 1936, 1941, 1948, and the newest one just last year. Pictures on these pages show the units now in service. An article in the Summer 1936 Powerfax covered the installation of a 300-kw unit that vear. Close-up nf the new Elliott de<ign tuth(H hnrger serving the lutr.it engine. i/htalled in 195 k -1 P % ?, r s fi ? i :! 5M1 kl'i Mh if 7 his photograph shows the Fluar-Griscom-Russell Fin-Fan jacket water cooler a ltu h serves all four diesel engines. The three circulating pumps shown in the foreground are driven by Elliott Crocker-Wheeler tO-hp, 750-rpm motors. POWERFAX, SPRING I9S5 1 1 The Elliott-Buchi turbocharger serving the 1540-hp diesel engine which was installed in 19-18. This is a close-up oj the Elliott 462-kw generator with V-beltdriven exciter installed in 1941. This unit is tucked in at right angles to the latest units. Standing beside the latest Elliott generator at Ford City is Lester 0. Gregg. Mr. Gregg was retired a year ago but still is on call as a consultant and is very much interested in his jobs. See page 3jorfurther information about Mr. Gregg. The Elliott generator here is rated 1245 ku>, 360 rpm, and has a V-belt-driuen exciter. It is driven by a Worthington 1260-hp dual-fuel diesel engine equipped with an Elliott turbocharger. This unit went into servicejust lastyear. These photographs show two of three parallel sets of Elliott three-stage ejectors. These twin three-stage units, serving primary and secondary vacuum towers, operate on 700-psig steam. The ejector units are installed in parallel sets so that, at reduced rales, one set may be shut down for economy in steam consumption. Thefinal stages exhaust to aftercondensers. The photograph on this pagefeatures the large first or "booster" stages; photograph on the opposite page shows thefinal or third-stage end of the ejector units. The ejectors are installed in a neat manner on platforms at an elevation. Sinclair's Houston refinery expansion A general expansion program at the Houston refinery of Sinclair Refining Company has included a new 40,000barrel-per-day fluid catalytic-crack ing unit constructed by C. F. Braun and Company and a 35,000-barrelper-day crude unit constructed by the Fluor Corporation. Both of these contain interesting features which were covered in separate articles in Oil and Gas Journal during 1954. The FCC unit, designed by Sinclair Refining Company engineers, was placed on stream in October 1953. Unit operation provides for recycling 10,000 barrels of stock daily in addi tion to the 40,000-barrel charge of fresh feed. Incorporating all of the latest improvements in FCC units, this plant is the backbone of Sinclair's efforts toward economically produc ing motor fuels which rank high in the competition for quality. The machine which keeps things moving in thecatalystcirculatingand regenerating system is the Elliott turbine-ch'iven centrifugal compres sor unit illustrated. It is distinctive in that it is the largest unit of its kind which has yet gone into service in this application. Sinclair has made an excellent job of the. installation of the equipment. Another view of the same unit was featured on page two of the Autumn 1954 Powerfax. The modern design of Sinclair's new crude unit is an important factor toward accomplishing the production of outstanding motor oils. As shown by the photographs altove, Sinclair lias made two very line installation of Elliott three-stage steam ejector on the crude unit vacuum towers. Vacuum is maintained on troth thprimary vacuum tower and the sec ondary vacuum tower by two paral lei sets ol F.lliotl three-stage steam je ejectors. Barometric intercondenser are used, with the final ejector stage discharging to surface type condens ers, which sent to atmosphere or tt the refiners low-pressure gas line Tower pressure is controlled by re cycling gases from the third-stag< ejector discharge back ahead of th< first-stage ejectors. If the pressure begins to rise, this recycle will hegii to shut off and ease tint load on tht ejectors, allowing them to maintair the desired pressure. ^OWEHFAX, SPRING 19SS 23 Coffee-washing- machine developed in Puerto Rico i Here is an Elliott C-W Sealedpowcr totally-enclosed fan-cooled motor, operating out in the open on the edge of the tropical forest in Puerto Rico, driving a peeler and coffee scrubber. The photograph was run in Implement & Tractor, and to give the story, we quote part of the article. Specialized equipment for harvest ing and preparing types of crops grown only outside of the United States is often badly needed but hard to acquire because of lack of financ ing or American know-how in pro duction. An example of this type of equipment is a coffee-washing ma chine which was recently developed and installed in Puerto Rico. Coffee grows in the form of a berry, which is red when ripe, and about the size of a cherry. When coffee is processed the berries are first put through a peeling machine which crushes the covering of the berry. The big problem, however, is to re move the gelatinous material sur rounding the coffee grain. For centuries this job has been done by fermentation, which turns the material to alcohol. It is then washed and is ready to dry for market. The process, however, is slow and expensive. In cool, mountainous regions fermentation may take 24 hours; in warm sea level areas it may take as little as six hours. A machine which removes the gelatinous material mechanically has recendy been developed. The ma chine is operated by a 2-hp motor; is 8 ft long, 8JA in. wide, and 16 in. deep. The gelatinous material is col lected at the upper end ofthe machine, next to peeler, without the use of water. At the middle and lower end of the machine several small jets of water are introduced to wash the re maining material from the coffee. It comes out ready to be dried for market. A single man can attend both peeler and coffee scrubber. The machine is calculated to wash and clean about 1200 lb of washed wet coffee per hour. ' Aircraft plant installs emergency generator North American aviation, ixc. has installed this Elliott 200-kw 900-rpm generator driven by a Superior 295-hp gas engine to protect its jet-aircraft parts plant in Columbus, Ohio, against power failure. An emergency power source in case of outside power failure was necessary to keep the plant communications system in operation, to maintain a safe level of illumination in the plant, and to supplypower to the fire alarm system and stationary fire equipment. Also it was important always to have power for outside floodlighting and for motor-driven sump pumps used to carry away water that might collect on floors during fire fighting or a very heavy rainfall. An interesting part of the engine-generator setup is the control features which are practically foolproof regardless of the cause of power failure. An emergency control switch provides for either automatic load pickup or manual starting by air motor, gas engine, or batteries. Under automatic control, the engine is started by an air motor if the voltage of the normal supply drops below a predetermined value. When the stand-by generator voltage reaches proper value the normal power breaker opens and the emergency power breaker closes. These operations take place in reverse when the normal power returns. 24 POWERFAX, SPRING I95S I HE Nordberg 12-cylinder, twocycle diesel engine pictured here is one of two in Anglo-Lautaro Nitrate Corporation's new Coya Sur diesel generating plant near Tocopilla, Chile. This power plant forms part of a three-plant network, operated by the company, whose combined generating facilities total 46,000 kw. These engines, which are the most powerful single-acting, two-cycle diesel engines in the Western Hemi sphere, are both rated at 8950 bhp and 6400 kw at 80 percent power factor. Below each engine, in the basement, is an Elliott 44,200-cfm motor-driven compressor operating as a scavenging blower and requir ing 545 kw when running at full load. The operations of the AngloLautaro Nitrate Corporation cover a large area in the nitrate fields inland from Tocopilla, including a new by products plant at Coya Sur and two large nitrate-producing plants. In addition to these, the company owns and operates a 45-mile, partially electrified railway between the plants and the port works at Tocopilla. Located below each engine in the basement is an Elliott IJ.dtX) inlet cjm single-stage centrifugal scavenging compressor driven hy an Elliott SOO-hp induction motor. 25 n : New cat cracker A new fluid catalytic cracking unit went on stream late in l`J.5,5 as part of an expansion program ly Southwestern Oil & Refining Company at its No. 2 refinery at Corpus Christi. Texas. This unit, engineered and constructed by the Refinery Engineering Company, of Tulsa. Oklahoma, has a design charge of a'-fO barrels a day at 50 percent conversion, taking ofT a naphtha cut, plus light and heavy recycle. Within a short time after the unit went on stream it was charging S1--0 barrels a day at 50 percent conversion and is now running at approximately TiOll barrels a day at 58 percent conversion, with no appreciable change in octane luunlx-r. An Elliott centrifugal Compressor lillusliatecl) serves the FCC unit. There are approximately "5 Elliott steam turbines installed in this plant. The turbines mainly drive centrifugal pumps, although some are used for fan drive and other services. Atrial view of the new fluid catalytic cracking An Elliott 265,000-lb-per-hr deaer ating feedwater heater serves the pow plant. There is an Elliott 250-hp, 900-rpm motor driving a Quimby pu: for Bunker C loading, as well as sever Elliott C-W explosion-proof motors driving tank farm transfer pumps. ^ Close-up of one of the Elliott turbines drain a pump through coupled speed-reduction gear This photograph shows a line of Ellio turbines driving various pumps. Some 7turbines, ranging in size from 8 to 224 / pumps andfans located all around this refl. V 1 Conoco at Lake Charles, Louisiana Filial! }!I-1pa; turbine rfrtnng a bmter-jeer/ pump. / /us turbine takes steam at .115 psig. exhausting at I5ti psig. Other FJlintl turbines. 20 hr 2.12 hj< i/rire rur/nus pumps. IlAST summer, Continental Oi Company's enlarged 45,000-barrel a-day refinery at Lake Charles Louisiana, went into full production The original Lake Charles refiner; was put on stream in 1941. It iva, designed to process 10,000 barrel daily of crude and (5000 barrels daih of de-ethanized field condensable, containing propane, butane, ant casinghead. The process units of th< original plant included crude top ping; a four-coil combination of vis breaking, thermal-gas oil cracking thermal reforming, and butane re version; sulfuric-acid alkylation thermal polymerization; and casing head gasoline fractionation. Over t.h< period from 1941 to the time of th< recent enlargement, revisions in th< processing equipment had increasec the crude charging capacity to 12,00( barrels daily. For the last severa years the thermal polymerizatior unit was operated only during th< summer months when a surplus o butane existed. Early in 1951, a decision was made to modernize and enlarge the Laki Charles refinery to a crude capacity of 45,000 barrels per stream day anc install facilities to produce specia products such as dodecene, benzene 28 POWERFAX, SPRING 195! and toluene. In 1953, Continental also began construction of a gas processing plant at nearby Gillis, Louisiana, which will increase the volume of field condensables to be processed in the refinery. The plant now contains two atmos pheric crude topping units. The original unit was modified slightly to increase its capacity from 12,000 to 16,000 barrels daily. Two new thermal catalytic-crack- ingunitsarecontained in ajointstruclureand feed into a common fraction ation system. They are of the modern Socony design employing gas-Iiftcatalvst circulating systems. The two cat crackers have separate feed prep aration facilities; the one feed prep aration system being designed to feed only distillate stocks, consists of a charge drum, a vaporizer furnace, and a flash drum. Elliott single-stage centrifugal compressors, illustrated at right, serve theTCC units. Elliott steam turbines also drive other pumps and units around the refinery. The four water-tube boilers, each with a capacity of 85,000 lb per hr generate steam at 350 psig and 600 F. Considerable steam is generated at 350 psig in the kiln waste-heat boilers at the two cat-cracking units. Steam is available for processing at 350, 150, and 20 psig. Pump-driving tur bines were carefully selected to in sure maximum power realization from the steam before use in process ing. To permit satisfactory balancing of three steam systems under all plant loads, several process turbines were designed to use 350-psi steam and operate condensing; others to use 350-psi steam and exhaust to the 150-psi system; while some units use 350-psi steam and exhaust to the 20-psi system. The prime contractors of the new Process units, except the platformer, and for the alki revamp was the Badger Process Division of Stone and Webster Corporation. The platformer was built by UOP's affiliate, Procon. line "j the hiItoll cenlrijttgetl compressors inn/:* a ml cracker. I he compressor is rated 52.(M) inlet cjm, inlet pressure IJ.5J psia. discharge pressure. i.5f< psig, speed JdOO rpm. I he IWO-hp turbine hikes steam at .350 psig, J.36 F and t/tsilunges In a condenser aI 10 in. Hg ah,. 'lilts I, the other Elliott turbine-driven centrifugal eornpressoi serving a eat cracker. Compressor is rated .id1050 inlet cjm. inlet pressure 1J.6 psia. discharge pressure i.tSJ psig, speed .3600 rpm. Turbine is rated Wit) lip, using 350-psig steam. ^vrearAX( spring isss Midland Co-op expansion | t 8 The Midland Co-operative Whole sale refinery at Cushing, Oklahoma, was recently revamped, enlarged, and modernized. Crude oil capacity was increased 70 percent to 10,500 barrels daily along with a 700 per cent increase in catalytic polymeri zation capacity. The refinery was also equipped with a 5000-barrelper-day U.O.P. fluid catalytic-crack ing unit, feed for the new cracker be ing supplied by a converted thermal unit previously rated at 1800 barrels per day. The cat cracker and poly unit were erected along with some of the auxiliaries by The Refinery Engi neering Company of Tulsa. An Elliott turbine-driven centrif ugal compressor serves the cat cracker, and Elliott mechanical drive turbines, 8 to 125 hp, direct-con nected and geared, drive pumps around the refinery. 30 This Ittty of ElUmt steam tarhim s is diic. f>rorestins /tumps in the gas plant which is adjacent In the iiitalylic-cracking unit The Elliott turbine-driven centrifugal compressor serving the catalytic-cracking unit is rated lS.2t.lQ inlet cfm, inlet pressure Id.05 psia. discharge J2.5 psia. It is driven at 6/00 ipm hr a 2272-hp condens ing turbine operating on 150-psig steam. ' POWEBFAX, SPRING 19 Word to the wives--Get your garden going v soon as the ground, and your husband, can be worked. it<>;i'S are red. Violets are blue. ^ Orchids cost S 15.95 Won't dandelions do? Those promised tax chops turned out to be little more than cutlets. The children had all been photographed and the teacher was trying to persuade them each to buy a copy of the group picture. "Just think how nice it will be to look at it when you are all grown up and say, There's Rose, she's married.' `That's Billy, he's a sailor.' " A small voice at the back of the room piped up, "And there's teacher, she's dead." . Sur, a four-year-old, was to*d by her father ihit if she'd be good he would bring home a little baby, so when twins arrived she asked, "Daddy, was I too good?'' . 4 A certain small town needed a preacher badly, back in the early days. When a ministerial-looking fellow rode in on a horse, a committee met him. This con versation followed: "Preacher?" "Yep." "What'll you charge to preach here Sunday?" "Twenty-five dollars." "We ain't got that much." "All right, fifteen dollars." "We ain't got that much neither." "How much have you got?'* "Ain't you got a sermon you can give for about live dollars?" "Yes, I have, but I warn you--it ain't worth a damn." ' 4 The strongest objection socialists and com munists have against capital is that they don't have any. '4 The judge looked down at the sweet young thing. "You claim that the defendant stole your money from your stocking?" he asked. "That's right, your honor," she answered. "'Veil, why didn't you resist?" the judge asked. The girl blushed and lowered her eyes. I didn't know he was after my money, yur honor," she answered. A certain Western auto dealer sold two cars to the same man in one day. His customer was an Indian suddenly grown rich from oil which had spouted on his land. The red-man bought a high-powered car, and with a gallon of gin in the front seat, fared forth to see the world. In about an hour, he came back bleeding and bruised, ready to buy another car. "For heaven's sake, what happened?" the dealer inquired. "Down road piece," said the red-man, "fences come fast. Telephone poles come fast. Soon bridge come down road. I turn to let go by. Need new car." Effie; "I'm warning you, he's a wolf. He'll rip the dress right off your back!" Lulu: "So what--I'll wear an old dress." 4 We can understand why so many fathers worry about their sons--they used to be one themselves. 4* Then there was the hillbilly who said he didn't use toothpaste because none of his teeth were loose. 4 The rich man employs a butler, a valet, a secretary, a laundress, a cook and a house keeper; the poor man just gets married. Hotel Clerk; "I'm sorry, but you can't have room service/' Guest: "Oh, that's ail right." Clerk: "You'll have to make your own bed." Guest: "That's all right." Clerk: "You'll find hammer, saw, lumber, and nails in the back room," 4 One vacationer reports seeing this sign in a restaurant on his travels: "Pies like mother use to make before she took up bridge and cigarettes." 4 The extent of some people's religion is that they know the name of the church they stay away from. 4 Whether a fellow winds up with a nest egg or a goose egg depends a heap on the kind of chick he married. 4' In a small town, people wiU sympathize with you in trouble--and if you haven't any trouble they'll hunt some up for you. A young lady, telephoning a music store, was connected by mistake with a garage. "Do you have `Two Red Lips and Seven Kisses'?" she asked. "No," answered the garage. "But we have two tom cats and seven kittens." "Is that a record?" she asked. "Well," said the garage, "we think it is." 4 A man was standing outside a pawn shop examining the window display of banjos, saxophones, tubas, rifles, shotguns and-the like, when the proprietor came to the door. Man: "Quite a bunch of stuff you've got there. Do you ever sell any of it?" Proprietor: "Sure. Every week or so somebody comes in and buys a saxophone or tuba. Then a day or so later, a couple of his neighbors come in and buy shotguns." .4 When telling an alleged funny story, always make it as short as possible. If you build it up and stretch it out, you give your listener time to think of a worse one to tell you. 4 The amount of sleep required by the aver age person is about five minutes more. I PRODUCTS STEAM TURBINES - Turbine-Cenerator Units--Mechanical Drive Units--High-Speed Reduction Gears ELECTRICAL EQUIPMENT Motors (1 hp to largest)--induction, wound rotor, synchronous, d-c, brakemotors, gearmotors--Generators {all tv a-c and d-c)--Motor-Generators--Synchronous Condensers--Electromagnetic Slip Couplings ` HEAT TRANSFER APPARATUS Condensers and Ejectors--Deaerators and Deaerating Feedwater Heaters . . INDUSTRIAL PROCES5 EQUIPMENT Centrifugal Compressors--Steam Jet Ejectors--Condensing Equipment CENTRIFUGAL COMPRESSORS AND EXPANDERS Air Compressors--Gas Boosters and Exhausters--Compressors and Expanders for Process (Electric motor, steam, gas turbine driven) TURBOCHARGERS AND SCAVENGING COMPRESSORS FOR DIESEL ENGINES Turbochargers for Two-Stroke Cycle and Four-Stroke Cycle Engines--Scavenging Compressors for Two-Stn Cycle Engines ^ STRAINERS--FILTERS Strainers (Twin, Single, Oil, Self-Cleaning)--Filters and Grease Extractors ' TUBE CLEANERS Cleaners for Tubes in Boilers, Oil Stills, Condensers; for Pipe, etc. COUPUNGS C-W Resilient Flexible ' , . * Descriptive bulletins of any of these products will gladly be sent upon request. ELLIOTT COMPANY JEANNETTE, PA. , (Turbin**, Hoot Transfer Eguipmi Head7quarters', tncutdmg jLTTuurm.boAcr.hlwarigmeMrs, aA. rcrcMesusMorii.eMs, HuMaotte, Crocker-Wheeler Division Generators, & Flexible Coupling RIDGWAY, PA. Ridgwny Division (Machinery SPRINGFIELD, OHIO Lagonda Division | Tubs Clsansrs NEWARK, N.J. Roto Division | Tubs Qsanars DISTRICT OFFICES Atlanta 3................................. 310 Haas-Howell Building Boston 35...................................1330 Soldiers Field Road Buffalo 2............................................. 807 Crosby Building Charlotte, N. C...................... 1916 Liberty Life Building Chicago 30......................................6100 N. 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Washington Gas Light Buildi Wilmington 1............................Industrial Trust Buildi REPRESENTATIVES Montreal, Que................... F. S. B. Heward & Co., -1 620 Cathcart Stre Toronto 2, Ont.................. F. S. B. Heward & Co., Li 1835 Yonge Strc Havana, Cuba........................... Compania Importado Ski)ton, S.A., P. O. Box 33 Mexico, D.F................................Tccnica y Equipos, S. Monterrey 101-4 San Juan, Porto Rico.............................................. Warehouses Corp., P. O. Box -3 Buenos Aires, Argentina.....................Mechanical Wot Engineering Co., Avenida Julio A. Roca 7 Rio de Janeiro, Brazil............Casa Mayrink Veiga* $ ^17 Rua Mayrink V eiga Santiago, Chile, S.A....................... .Compania Mincra Commercial SaliHochschild, S.A., Casilla 3 Athens, Greece......... Miltos P. Pcsnikides, Sina Street Honolulu, T.H.. .Hawaiian Equipment Company, Ll Manila, Philippines................. Atkins, Kroll & 124 Myers Building, 12th Street, Port Export Branch.........................................New York O Approved service shops and distributor? strategically located throughout the United States.