The Iron Age 1927-03-17: Vol 119 Iss 11

THE IRON New York, March 17, 1927 PSTABLISHED 1855 Marmon Motor Car Co., Indianapolis, finds his desk daily production sheet detailing the output the previous day and containing other information constituting general inventory manufacturing operations. This report, compiled from records pre- pared inspectors the various departments, es- pecially valuable for controlling the receipt raw materials. Its use, originally started plant No. has been extended plant No. recently laid out for the production the little Marmon “eight.” Here there are storerooms which stock raw materials, parts and assemblies. Instead, parts pur- chased frem local vendors are delivered directly truck the storage bin nearest the point the as- sembly line where the part takes its place the com- pleted car. For control the building divided stations, each which numbered. The, en- trances the plant are lettered. Wide aisles parallel the assembly line, and bins have been provided for the placing parts and assemblies. Switches from railroad lines run unloading ‘orms within the plant, each platform being divided ten sections. This arrangement affords facilities unloading ten railroad freight cars simultaneously. trueks then convey the material desig- ‘ted points along the assembly line. Large parts, such fenders, batteries and head mps, are brought the lines their original con- ners, and the boxes are opened the workmen parts are needed. The only deviation from this sys- made the case but valuable parts, radimeters, thermostats, clocks and tools for car’s equipment. When part released the engineering depart- the production control department receives bul- morning every important executive the VOL. 119, No. Building Cars Without Stockroom Close Coordination Between Needs and Supply Parts—Control Production and Routing Material BURNHAM FINNEY letin which are shown the routing the stock and the processing time required. The bulletin precedes the blue print and the bill material. Copies also are sent the purchasing, receiving, cost and service de- partments, the manufacturing superintendent and the other departments through which the material routed. the material purchased carload lots over, the location the freight cars shown the bulletin. writing out his order the purchas- ing agent designates the entrance and the station num- ber which the material delivered, that the id “= a | 4 Connecting Rod Babbitting Process Plant the Marmon Motor Car Co. top page the cylinder hone operation THE AGE, March 17, 1927—769 | receiving clerk can route the parts without delay the production line. copy every receiving voucher forwarded the chief inspector, who distributes the inspector charge each Workmen and “material handlers” (stock clerks) are instructed not use any stock until the voucher accompanying the material has been approved the inspector. the production control department the engineer- ing bulletin goes record clerk, who fills out card for it. this work the entire plant treated chassis started, bodies mounted, cars shipped and cars available for shipment are ated. Each department provided with cards dispatehed the production the day clears the department, card being made out © vs Car each automobile and unit completed. this way production control department identifies each knows its location the factory. Aside from the method controlling plant No. contains many interesting features. ORMS Used for Production Control Plant the mon company. background, the “Daily Production Re- Motor port” carries such details the previous day’s progress that the management may intelligently order speeding ‘sup- single unit, and all records are carried accumulated totals. the number parts rejected requisitioned the service department for replacement purposes reaches total equal three days’ production require- ments, memorandum sent the purchasing de- partment asking for additional stock. This emergency met advancing the release date shipments from parts manufacturers. the daily production report already referred to, complete data regarding manufacturing operations en- able executives see whether each department turn- ing out its quota. The schedule finished cars for the day, week and month, together with grand total, appears the top. Furthermore, the total number each type Marmon car produced written fashion, the volume production each part the plant thus being recorded. Bodies received, 770—March 17, 1927, THE IRON AGE I-Model L MOTOR As DEPARTMENT BUL LETIN Chang: Sheet plies slowing down shipments, the case may require. The “Engineering Department Bulletin” used, similarly, check processing time and production planning. The cards top and bottom, which proceed the production office the day the job clears the department, are important features. time and labor are conserved every possible The production lines resemble huge the machining division one side, the engine and frame sembly the base, the chassis and body assembly line the other side. Assembling the Frames After being washed solution caustic soda remove any grease oil which may have lated during the process building, the frame placed moving rails ft. apart height for workmen. For greater ease attaching axles and springs, the frame put the line tank down. The muffler, shock absorbers and gasoline ine. are bolted the frame moves down the i ne Axles, wheels and springs are assembled one sub-assembly lines leading the frame line. i, e, ate RING Meds | Articte Ne | ‘ } tt Fog ] Ue | | 7 7 utilized extend the springs and force where the ends the springs are end thé line the frame turned over and the main assembly line means chain arrangement. This special was developed the Marmon tool division. manufactured the Indianapolis branch One the Huge In- Milling Machines Machines Three Sides the Little Mar- Eight Cylinder Block the Same Operation Plant the Marmon Car Co. Below are several cutters ent surfaces sho Circle Are Shown Little Mar- Being Placed Ingersoll Milling Machine for Work Three Faces One Set-Up the Mill- ing Cutters. Speed completion and accuracy operation are fea- tures this method doing sev- eral things once mon Crankcases Simultaneous Murray Body Corporation the upper floors building, are supplied only they are needed, the method having been discarded. They enter floor the exact spot where the body the chassis. inal inspection made running cars tread- over pit the end the main assembly line. The pit electrically lighted means sockets walls, and forced air system has been in- stalled insure freedom from gases. the machine shop are more than 300 machine tools, practically all which are for single purpose production, and there are numerous instances which several operations are performed simultane- ously. For example, 24-in. 24-in. 22-ft. Inger- # 8 se — a ae > ~ soll-Rockford horizontal milling machine, three sides the Marmon cylinder block are machined the same operation. every department the plan synchronizing and coordinating all production work has been adhered to. “The fundamental principle economical manufactur- ing keep materials moving.” That the axiom THE IRON AGE, March 17. equipm 4 — | ELOW Shown the First Stage the Construction the Frame the Little Marmon Eight, Where the Pressed Steel Side Members Are Riveted Form the Sturdy and Powerful Frame. For reasons con- venience the work starts with the frame member upside down. After several parts are thus assembled it, righted, and other attachments placed top upon which Williams, president the Marmon Motor Car Co., has based his policy. And materials are kept moving the Marmon factory—paradoxical New Business Era Announced Subject Chamber Commerce Meeting Under the general heading, “The New Business Era,” problems current interest American business will considered the fifteenth annual meeting the Chamber Commerce the United States held Washington, May and The new competi- tion, with entire groups battling for markets, hand-to- mouth buying, installment selling, improved business standards, relations committees, adequate statistical information, simplification, elimination waste and score other modern developments busi- ness will discussed. connection with the meeting planned hold joint general session with the business men and of- ficials from Latin America, who will Washington for the third Pan-American commercial conference. The program also provides for meeting the Ameri- can section the International Chamber discuss world trade problems, particularly barriers hindering the free flow commerce among the nations. Lower Lake Ports docks the lower Lake ports reported the Lake Superior Iron Ore Association 6,062,608 tons. This slight reduction from the corresponding figure for March 1926, which stood 6,083,791 tons. Rather more than one-third the total this year was Ash- tabula, which had 2,146,107 tons, Conneaut had 1,487,- 635 tons, Cleveland, 1,123,528 tons, and the other ports much smaller amounts. April 1926, the dock balance showed 5,490,622 tons. Receipts for the season aggregated 42,287,063 tons and shipments for the season 31,681,717 tons. The difference between the dock balance plus receipts and the shipments plus later dock balance represents re- ceipts the lakefront furnaces, which aggregated about 10,000,000 tons. The receipts the 1926 season were nearly per cent greater than 1925, when the 17, 1927, THE IRON AGE UNIQUE Feature the Inspection Pit (in Circle) the End the Main Assembly Line. Here the under part the little Marmon Eight carefully inspected that statement may sound one familiar with the amount material used the modern automobile fac- tory. total was 38,701,811 tons. Shipments likewise were about per cent greater than the 1925 total 940,359 tons. Wages Ohio Foundries Show Slight Advance Wages the Ohio foundry industry were slightly higher the beginning this year than months previously, according wage report issued the Ohio State Foundrymen’s the five principal classifications foundry labor, iron molders, core makers, brass molders and common labor show increase over year ago. However, the rate iron molders declined considerably following ad- vance during 1926. December, 1925, the rate was per hr.; April, 83.3c. per hr., and Decem- ber, 1926, 80.5c, per hr. Core makers received December, 1925, and per hr. December, 1926. The wages brass molders advanced from during the year. The pattern makers’ rate declined from hr. 72.2c. and common labor advanced from per hr. The figures are based reports from foundries cities, representing 5878 employees. Discuss Foundry Sands three-part paper-on “Foundry Sands” will pre- sented Hanley, chemist, Whitehead Brothers Co., Rochester, Y., the monthly meeting the Pittsburgh Foundrymen’s Association Monday even- ing, March 21, the Fort Pitt Hotel, Pittsburgh. The first part the paper will deal with molding formations; the second, foundry sand preparation, and the third, foundry sand control. The first and second parts the paper illustrated lantern slides and the third part practical demonstration Mr. Hanley will accompanied men’s Association. — 4q Faller, former president the Pittsburgh Chromrum Plating and Some the Most Recent Uses—Cost Not Excessive Life for Plated Gages— Other Applications PHILLIPS application chromium has two main pur- One, permanent decorative effect, the other, prolong the life mechanical parts, which are subjected unusual conditions, either Chromium, for decorative effect our company, has been used for considerably over year our Oldsmobile radiator and the bumper bars. Its use now being extended other cars manufactured our corporation. The method used produce smooth surface possible, and then apply light coating chro- mium. order get this smooth surface, our practice copper and nickel plate the parts; then, after the articles have been buffed high finish, light coating chromium applied, which comes out lustrous form. This method has several advantages. The first the comparatively low cost, considering the protection obtained. have found that somewhat difficult produce nickel plating under 1/1000 in. thick which will stand salt spray test hr. However, steel base, nickel plated with this amount nickel, then chromium plated, will stand 100 hr. salt spray test. Aside from the protection against rust, the chromium surface infinitely superior the nickel surface—even one were use pure sheet, inasmuch the chromium will not tarnish under the ordinary conditions exposure. This includes expo- sure salt air and high humidities, such are en- countered Florida and southern Texas. Cost Not Excessive The cost chromium plating not excessive done accordance with the outline given. true that chromium plating much-patented sub- ject, but the companies owning these patents are will- ing license their processes. The chief material used such plating chro- mium trioxide, which contains about per cent chro- mium metal. The chromium trioxide can purchased somewhere the neighborhood 35c. per with the very strong possibility that, the use increases, the From paper delivered meeting the Society Automotive Engineers, Detroit. The author with the General Motors Corporation. price will decline. The reason for this is: Until chro- mium plating started come into general use, great volume chromium trioxide was Conse- quently, was made small batches and shipped around glass bottles. There now interstate ruling permitting shipment chromium trioxide non-returnable steel drums very similar those used ship caustic soda. Hardness Controllable The hardness chromium controllable factor. Chromium can deposited and quite readily buffed, but our belief that the greatest luster can ob- tained depositing the chromium its bright modi- fication. Dr. Colin Fink, Columbia University, New York, talk before this society, gave one the reasons for the protective value chromium the difficult wet the surface this metal; demon- strated this passing spoon containing water around the audience. This appears one the ex- planations which quite important. However, not believe that chromium, itself, good rust preventive coating for steel and iron the combina- tion chromium with other metals, the chromium, course, being the top layer. very difficult, indeed, plate other metals over chromium unless certain precautions are taken, but the value such procedure not particularly great the decorative field. When light coatings chromium are applied accordance with the above method over nickel, cop- per and nickel, the resultant coat, while extremely hard, will not withstand file test. However, will hold under ordinary usage car parts for very long periods time. cannot say definitely how long because our cars have not been out sufficient length time wear out the chromium. tegular production was started the Olds Motor Works September, 1925, and many cars produced, experimen- tally, more than year before that are still splen- did condition. Successful Use Gages The other application chromium, which may time become more important the automotive indus- try and other industries, mechanical one. (At Left) 2-Hr. Plate Chromium Produced Deg. This was etched per cent hydro- chlorie acid water for sec. The structure pointed well developed. (Center) 2-Hr. Plate Chromium Cold-Rolled Steel, Produced Deg. and the etching the same the case the photomicrograph the left. This cross-sec- (At Right) Production Plating Small Parts. The significant feature here the uniformity and con- the plating. IRON AGE, March 17, 1927—773 ° Li plug gages, thread gages and the like, our use chromium has been successful. this particular in- stance, the gages are ground about 0.0005 in. under- sized, then brought size with chromium plat- ing excess chromium, which later ground size, plating the gages exactly size. When the gage has finally worn out, then deplated and new coating chromium applied. thus possi- ble use the same gage for indefinite period. this work that the control hardness par- ticular importance. have been able produce with one plating gages which would last from times longer than the best steel gages. Owing the low coefficient friction between chromium and other metals, have been able apply chromium burnishing tools with great deal suc- cess. has been suggested, along this line, that chro- mium applied dies for drawing, particularly non-ferrous metals. Files used for cutting soft metals can chromium plated great advantage, inasmuch the metal does not clog the file does untreated files. How Hard Chromium? The question has often been asked how hard chromium is. not know exactly, because have not yet developed instrument for measuring its hardness. the use microcharacter have been able measure some the soft modifications chromium plate, and find them considerably harder than our hardest steels. necessary back American Radiator Co. Acquires Hummer Engine Works The American Radiator Co., New York, has pur- chased the plant the Hummer Engine Works, Spring- field, and will equip for the production re- frigerating and oil condensing sections. Most the equipment needed for the operations will trans- ferred from other plants the company where these products were made heretofore. The new acquisition will known the Illinois plant the Radiator company. The plant includes number manufac- turing buildings and was built five years ago Mont- gomery Ward Co., Chicago, for the production gas engines, but was never used any large extent. Starts Idle Coke Ovens The Frick Coke Co., Steel Corporation sub- sidiary, recently started 970 idle beehive coke ovens the Connellsville district. Leisenring No. plant 200 ovens were fired; 120 the Crossland plant; 350 the Mammoth plant and 300 the Marguerite plant. Observes 125th Anniversary The William Scaife Sons Co., Pittsburgh, observing this year the 125th anniversary its estab- lishment. The has works Oakmont, Pa., and engaged the fabrication steel plates and structural shapes, specializing the manufacture tanks, cylinders, water purifiers, filters and other prod- ucts. Scaife, president the company, member the fourth generation the family engaged the business, and Scaife, dent, represents the fifth generation. More than $132,000,000 life insurance was car- ried employees the General Electric Co. under the free and additional group plans Dec. 31, Approximately 64,000 employees were insured under the free insurance plan, and 46,300 employees un- der the additional group policy. The average policy under the free insurance was $1,108 and the average under the additional plan was $1,331, making aver- age $2,439 per employee for the 46,300 the addi- tional group. 17, 1927, THE IRON AGE chromium plating with hard metal the the impact great, the steel parts should burized cyanided before applying chromium. Chromium for Edged Tools not recommend chromium for edged used cut hard materials, inasmuch there tendency fracture the chromium and cause the Society, glass cutter, made from copper, was ex. hibited, and going risk repetition and show how well these cutters work. They are simply from %-in. round copper wire which has been down edge and then chromium plated with about 0.0005 in. chromium. The cutters perform creditably. Other Applications has not been determined just what the applica- tions chromium will the bearing surfaces automobile, either the spindles, the bearing surfaces themselves. have, however, one in- stance, used about some spindles which were chromium plated, place carburizing, other means hardening. These spindles carry very low load per square inch, but are subject extreme wear conditions. have found that the chromium, this instance, stands better than the parts did when they were carburized. Piston pins are now production, small way, with the expectation that this use will considerably extended, Navy Test Corrosion Metal Airplanes WASHINGTON, March 15.—Resistance corrosion, length life, and ease upkeep are among points which will tested the Navy Department con- nection with the Ford all-metal transport airplane which was purchased last week. The all-metal feature the plane, according’ announcement the de- partment, but development test work which the Navy carried with the Stout Co., which was ab- sorbed the Ford company some years ago. The statement said that the Navy Bureau Aeronautics has long been desirous maintaining liaison with the commercial air activities, which, was pointed oul, will assist the naval program many ways while also the Navy may some aid commercial aviation. planned utilize the newly purchased plane mov- ing freight and passengers wherever they may needed. Protests Against Duties Applied Reinforcing Bars WASHINGTON, March 15.—With Chief Justice Howell sitting circuit, hearing was held here Wednesday before the United States Court Customs which the Henry Exstein Co., Inc., Woolworth Building, New York, importer, protested against the classification bars under Paragraph the tariff act, providing duty per when valued above per Ib. and not above Through Henry Morrow, the Washington law firm Col- laday, Clifford Pettus, the contention was made that these bars should take the same classification structural material Paragraph 312, carrying duty 0.2c. per Generally, reinforcing bars have admitted under the the request the Government attormeys thé case was referred back Baltimore, thé port entry, and further hearing was. set tentatively for April versity Michigan, Ann Arbor, Mich. bulletin titled, New Series, Vol. 28, No. 19, gives full tion concerning the courses offered. 7 the department chemical engineering, the Sinter for Blast Furnace Burdens Improvements Treating Ferrous Materials the Greenawalt Intermittent Process—Oil Gas Ignition TOURNIER RODUCTION sinter whose homogeneity structure render suitable material for the last furnace being attained many plants Greenawalt intermittent process. This process, ame implies, based series operations part are discontinuous. Chemically and physi- the sinter now produced this method not dif- ent from that made 1919 earlier. The increase from 175 tons 425 tons single sin- ering unit per hr. indicates, therefore, that other tors have entered into the problem. the early days intermittent sintering the its, pans, had grate area 200 sq. ft., while the largest the present single pans has grate area 240 sq. ft., equivalent increase nly per cent. The increment production 145 per cent is, therefore, not due alone multiplication grate surface. ope methods, and the mechanical improvemen pans, blowers, charging cars and materials- equipment. There is, addition, the selec- suitable personnel and plant cleanliness. ni irgest unl “One the Best Money Makers” Plant managers, the past, have been apt re- sintering plant necessary evil, locating some obscure place, appointing low-price man and then spending the time ever after com- because the sinter poor, the costs high ause the plant shut down great deal the time for repairs. Yet sintering plant one the best money makers around steel works. not simple operate that intelligent and honest men are not needed run it. need not unsightly and dirty; and proper handling equipment should installed iain) hanical engineer, Clinton | that shut-downs and consequently the cost operations nay low.” Quoted from experienced operator Greena- sign and opera- walt plants, the preceding contains principles which are based both tion intermittent sintering plants. The products sintering plant are most difficult They are either hot, abrasive and dusty exposed moving parts any mechan- out, unprotected belts burn and utes must run hr. day seven days week, handling Therefore, simplicity sturdiness equipment and structures, dust protection electrical mac and gears, together with provisions ork- men must given careful thought the design the plant. Oversize conveyors -lubri- cated bearings and dust-proof speed red essentials that help increase arg aii =) large aii best results tonnage and production costs intermittent process, number elements must considered, follows (a) Proport raw materials. Mixing Char Ignition (e) Suction Depth charge and grates Screening sinter (h) Pla cleanliness and genera! Each unit composed grate pan, has been put out three lengths, 12, and from ft. wide. The top the grate in. below the top the pan. The pan about in. below the The bottom and the bottom the pan. The pans are mounted ions, which connect the chamber the exhaust fan, and suction controlled 1—Diagrammatic Representation Greenawalt Three-Unit Sintering installation. arrows show flow gases. The charging car moves slowly the right, depositing fine material top coarse AGE, March 17, 1927—7 if | — i* | 7 \ 4 La: r Aaa | | 7 > \ 4 | GRATES GRATE OPERATING POROUS HEARTH | > Fig. 2—This Longitudinal Section Through the Sintering Pan Indicates the Ignition Hood Position the Charge. Fuel carried the oil tank top mechanically operated valve, operated hand valve located the pan level. Ignition Car Uses Gas Oil some instances, matter convenience, the ignition car coupled the charging car, moved along the rails the same motive power. other cases separate actuating motor mounted the vehicle which carries the ignition hood. Sometimes the ignition effected oil fuel, and sometimes gas employed. ignition hood using fuel oil carries oil tank with distributing pipes deliver the oil number burners. These spray the oil and air all through the space within the combustion chamber beneath the hood, thereby filling with flame. the ignition hood brought rest over pan containing material ignited, the operator connects air pipe the piping which distributes air the burners. This connection has disconnected before the ignition hood can moved away from over the pan, after the igniting op- eration. the gas burner installation the gas burner forms part the roof the hood. That is, there are series burners formed the under side the roof, which previously mixed gas and air are delivered pipes. gas main connected and disconnected the hood each pan; just with the air pipe the oil- burning operation. The gas line feeds series pre- mixers which part the air required for combus- tion supplied; this mixture then blown the burners. Whether fuel oil gas used, some air for com- bustion may drawn down through openings the hood, but this depends upon the amount air enter- ing with the fuel and the amount suction. How the Process Accomplished The cycle operations follows: the charging car run over pan and the material fed into the pan stream wide the pan. The ignition hood, which has the same horizontal area the pan, then run over the pan. Brought rest, connected the air pipe, when oil fuel used, the gas and Fig. Through Sintering Pan and Dust-Settling Chamber. This view indicates the suction system and exhaust gas connections. The pan process being dumped 776—March 17, 1927, TRON AGE air pipes, when gas fuel used. The valves for the exhaust fan are then turned on, and the operator next places torch inside the hood and turns the fuel, which ignited the torch. sec. The operator observes conditions through one the peep-holes the ignition hood. soon sees that the material has ignited, turns off the fuel, dis- connects the pipes, and then runs the hood away along the rails. After ignition the material the sintering opera- tion takes from min., depending upon the char- acter material and thickness layer. The time usually fixed definite period, have the operations run along schedule. Usually the sintering operation stopped before the sintering complete, the operator shutting off the suction valve and operating the motor for dumping the pan. This rotated 360 deg. its hollow trun- nions, dump the charge. The discharged material slides down over screen, usually into railroad car. The finer material, which has gone through the screen, sTacn convevee a it | 1 Pan -?* ~ re ++ j Pwes | ae . 5 . Row Sinter- ing Pans Bat- tery. The rails right and left serve for the wide-gage charg- ing car and also taken back, mixed with unsintered material, and re- treated; this material being known “return fines.” The material which goes through the screen comprises bout per cent, weight, the material dumped from the pan, but the material which actually delivered into the railroad ear contains only small proportion unsintered fines. Proportioning Raw Materials Since flue dust generally contains excess car- bon the form fine coke sintering fuel, usually necessary dilute the carbon per cent. This may done either adding raw ore, roll scale, pyrite cinder, borings some other iron-bearing fines, enough return fines from the screening the sin- ter. practically all modern intermittent plants, from per cent return fines are sereened out the sinter. Although large part this return fines good sinter for the furnace, most composed small, partially sintered and unsintered material from the pre- vious charge. The carbon content the fines not enough sinter alone and, therefore, good diluent for the regular flue dust charge. Besides dilut- the carbon the final charge, the fines, being and irregular shape, help open the charge Fan Room for Considerable Battery Sintering Pans for the better flow air and gases through the sinter- ing charge, The best mechanical means used for proportioning the various raw materials are revolving horizontal table feeders. These are from ft. diameter, revolving very slowly and equipped with adjustable scrapers which cause steady flow the material collecting conveyor belt. The materials are not weighed, but each table feeder adjusted proportion the mate- rials volume until the best sintering mixture ob- tained. The adjustment may quickly changed the operator manually, when desired. Mixing materials are proportioned the conveyor be- fore reaching the mixer. The latter used for adding the proper amount moisture for sintering and thor- oughly mixing the constituents together. The proper amount moisture varies with the material sin- tered, and may from per cent weight. Moisture opens the charge; dry ore packed tightly that the gases cannot readily pass through it. When the suction applied, the dry particles from above slip and slide into the pores below are sucked down through the grates. The percentage voids flue dust fine ore greatly affected moisture. a Each unit supplies suction for one pan Tue March 17, . ~ = ew om — The reason lies the fact that, particle ore, occupies space this particle from the next. also makes each particle ad- here the adjacent one, that their relative positions are retained, even when suction applied. given volume dust fine ore will have certain percentage voids and related weight. adding per cent moisture time and mixing thoroughly, both the volume and the voids will in- crease until maximum reached. more moisture added, the volume shrinks again, until finally the lume less than that the original dry ore. That which the volume and voids are the greatest one which the best results are obtained sin- Pili. Proper Moisture Content Varies Tests made plant using fairly coarse ore wed that the proper sintering moisture was per cent. another plant, using fine flue dust, per cent moisture gave the greatest volume and voids. This characteristic the material being sintered large- determines the tonnage sintering plant. The mixer generally used the intermittent process the continuous cylindrical type, about ft. long and ft. diameter. The mixer inclined about and four sets spiral lifting vanes attached the inside shell keep the materials moving tumbling Cleveland Branch Metal Trades Association Elects Officers Paul Norton, president National Metal Trades Association, addressed the Cleveland branch that association its annual meeting and banquet held the Hotel Cleveland, March 11. The meeting was well attended, there being about members present. Mr. Norton reviewed some the important activities the association during the year. Homer Sayre, com- missioner the association, also spoke and outlined some the details the association’s work the past year. New officers were elected follows: President, James Cox, Jr., president and general manager COMING MEETINGS March American Society for Testing Materials. : March 18. Spring committee meetings, Bellevue-Stratford Hotel, Philadelphia. Warwick, 1315 Spruce Street, Philadelphia, secretary. Conerete Reinforcing Steel Institute. March 23. Third annual meeting, Greenbrier Hotel, White Sulphur Springs, Va. Beeman, 2112 Tribune Tower, Chicago, sec- retary. National Association Foremen. March 21. Fourth annual convention, Cincinnati. Tingley, 1249 Building, Dayton, Ohio, secretary. April American Society Mechanical Engineers. April tegional meeting, Kansas City, Mo. Calvin Rice, West Thirty-ninth Street, New York, secretary. National Metal Trades Association. April and 26. Annual convention, Hotel Statler, Detroit. Nyhan, Peoples Gas Building, Chicago, secretary. American Welding Society. April 29. Annual meeting, Engineering Societies Building, New York. Miss Kelly, Thirty- ninth Street, New York, secretary. American Electrochemical Society. April 28 30. Annual meeting, Franklin Hotel, Philadelphia. Colin Fink, Columbia University, New York, secretary. 778—March 17, 1927, THE IRON AGE fashion toward the discharge end. the mixer supported cast iron rollers turn, are common dead-plate, The tire this end the drum ganese steel. The discharge end supported large-diameter shaft with ball thrust bevel gear mounted driven through reducer, direct-connected motor hp. and Disposing Oversize Flue dust sintering plants sometimes have proportion oversize coke which should screened mesh wire cloth, placed the head the eleva: carrying the mixed material the overhead bin. The large coke passes through the mixer and the without trouble and screened this point. From the screen chute carries the large coke railroad car stock pile. {This the first three installments de- tailing the sintering situation the min- ute. The second will cover operating proced- ure charging and igniting the charge. the third will outlined some the im- provements equipment, performance and costs and ‘the probable future trend.] Cleveland Twist Drill Co.; vice-president, Franklin Schneider, president Van Dorn Electric Tool Co.; treasurer, Sayle, vice-president Cleveland Punch Shear Works Co. The following were elected serve with the above named officers members the executive committee: Campbell, president Cleveland Wire Spring Co.; Geier, president Geier Co.; Hertner, president and treas- urer Hertner Electric Co. and Stahl, vice- president Baker-Raulang Co. May Extend Term Officers Foundrymen’s Association Because the change adopted last year the board directors the American Foundrymen’s As- sociation, advancing the annual convention date the spring instead the fall, there resulted automatically shortening the term the officers the asso- ciation elected the annual convention last October. The nominating committee, feeling that members gen- erally would approve the continuing office the officers elected last year, have held meeting and unanimously nominated the following officers serve for one year, commencing next June, when the annual convention held the Edgewater Beach Hotel Chicago: For president: Utley, vice-president and general manager, Detroit Steel Casting Co., Detroit For vice-president: Johnston, vice-president, Obermayer Co., Chicago. For directors serve for three years each: Ballard, general superintendent, General Electric Co., West Lynn, Mass.; Carson, research American Cast Iron Pipe Co., Birmingham; Goldsmith, treasurer, Goldsmith Co., Newark, Foundries Corporation, Moline, Nugent, president, Nugent Steel Castings Co., Chicago. reelected for another year, Mr. Utley’s term office will practically the same that Bean 1921-22 and Glamer 1923-24, whose terms office were extended similar changes tion dates. The results extensive series tests, develop economical and dufable heat water paint whitewash, will presented the Richmond meeting the American Chemical Ohio State University, part the symposium lime held the industrial division, Apri! and 14, — | 7 7 Equipment for Continuous Sheet Bar Mill Run 9000-Hp. Motor, Which Shown Left Coiling Rods and Strip Steel Makes Mill Unusually Flexible FRED PRENTISS LEXIBILITY the outstanding feature the Steel bars these ranges size are handled 10-in. merchant bar mill the Corrigan, Mc- the hot-bed and sheared lengths ft. The Kinney Steel Co., Cleveland. addition pro- size range strip steel from in. wide and 0,014 ducing steel bars, designed roll rods and strip in. thickness in. wide and thick. steel. equipped with reels for coiling the latter The rod reels will coil Special The range bar size from 1-in. mill stands are provided part the finishing round, equivalent sizes squares and hexagons, and train, for producing rods and strip, and these mate- flats from 5/16-in. rials are diverted from the mill runout table the Resident editor Cleveland. reels located side the table. The capacity ~ Four 14-In. Stands, Forming the First Section the Roughing Mill, Which Has Also Four 12-In. Stands Connecting Table, Shown Part Right. The heating furnace appears the background. Driving the new sheet bar mill, the 9000-hp. synchronous motor shown top page the largest type ever built for Ite size the man standing side. holds his hand the electric motor used Cleveland, 1/6-hp. motor built 1881 AGE, March 17, J 7 +) é \ | the mill from 10,000 12,000 tons per month. was designed and built the Morgan Construction Co., Worcester, Mass. Another Bar Mill Ready mill equipment the plant includes also 12-in. bar mill, which was recently put into opera- tion; this and the 10-in. mill will give the com- pany capacity for wide range sizes. addition the erection finishing mills the company re- placed operation 21-in. continuous sheet bar mill, supplementing its 21-18-in. billet mill, which was previously used for rolling both billets and sheet bars. The old mill now being used exclusively billet mill and the new mill only for sheet bars. The billet yard building right angles mill building. 15-ton billet yard crane transfers billets from the billet mill hot-beds either the billet yard, where they are stored line parallel the movement the material through the mill, skidway the back the billet yard, from which they pass roller table which delivers them end- } inist inis! first four are 14-in. roughing and the set are 12-in. intermediate stands. centers the first and fourth roughing e st ling two strands can run through one time From the last intermediate roughing hg stand tr ir goes through pipe guide looping table looping train three 10-in. intermediate stands. loops back from looping the first finishing stand. Repeaters provid tween the last roughing stand and the first stand, between the looping stands and between the looping stand and the first finishing when rolling rods and strip. shear provided for cutting .off the crop before the steel reaches the finishing mill. This port- able, that can placed any desired position connection with the intermediate finishing stands but will usually placed front the first stand this mill. ior From the Last Intermediate Roughing Stand the Bar Passes Looping Table and Back Through the First Stand Looping Train Three 10-In. Intermediate Finishing Stands. After ite pass through the last the side the looping mill, but not here shown into the side the heating furnace. They are pushed through the furnace motor-driven pusher, which operates after each bar delivered into the end. Built with suspended type roof, the furnace ft. wide and approximately long. will handle and will the usual practice use billets that length. lower half the furnace the bil- lets move over the brick floor, gas sup- the discharge end the furnace are two pusher rods, one for pushing the billet from the furnace and the other, this having large square head, for pushing out seale. The end the heated billet, when pushed out the furnace, gripped pair fluted pinch rolls that deliver into the first roughing mill, which located only about ft. from the furnace. The up- per pinch roll raised and lowered air cylinder. up-and-down shear located between the furnace and the first roughing stand, cut 30-ft. billets into shorter lengths when desired. toll Train Two Four-Stand Sets There are two sets continuous rolls, four stands each set, arranged straight line, with connect- ing roller table ft. long between the two groups. The 780 March 17, 1927, THE IRON AGE There are four 10-in. stands the finishing group, arranged tandem, because the short distance between the first and last stand not more than three the stands can used time. The finishing pass merchant bars given stand No. 12, the first finishing unit. There are two the finishing leavitig No. stand, and also two special finishing strip, the housing and rolls these stands being changed required, From ‘the last stand the delivered over roller table the run-on the This double bed 450 ft. Tong, each section ft. wide. the carry-over notched type. The bar mechanically each side the ing bed run-on table and delivered the bed broadside kickoff. The carry-over racks the discharge the bar shuffle bars which deliver the run-off rollers leading the shears. There are two No. bar shears, one each the bed. After the bar cut length the table short distance beyond the shear, pacity tons lengths ft. After being weighed, the bundle picked crane that serves the mill building and loaded cars track that extends through the lower part the The two sets are arranged that, when 7 Four Reels Which Rods Are Coiled Are Located Pit the Side the Finishing Mill Run-out Table. tuted with switches that divert the steel into pipe guides that deliver the reels. When, rods are rolled, section that table removed and its place section The coils, when completed, are raised above the coiling pins and pushed off the conveyor which carries them the loading platform. This conveyor the muffled type, although the picture inclosed part end the building, for transfer the adjoining ship- ping building. Special Arrangements for Coiling rods that are coiled are being rolled, one section the run-out table fgom the finishing stands taken out and its place substituted table tion with four switches that deliver the rod down incline four pouring type reels located concrete pit the side the mill table. The table pedestals are made two sections, permit the re- moval section the table and the upper half switches the side the run-out table, where the operator has view both the table and the reels. Coils from in. in. inside diameter, and weighing 250 500 are rolled the rod reels. These reels differ somewhat from the usual design. They are horizontal slanting position and the reeling pins are stationary. After the coil reeled the plate beneath raised, bringing the coil above the top the pins, and pusher discharges the coil off the reel muffle type conveyor that ex- tends under the mill run-out table across the build- ing diagonal direction and incline hook The Mill Has Double Hot-Bed the Notched Type, 450 Ft. Long. There are two shears, one each side the hot-bed. these the bars are delivered roller tables which they are discharged from the hot-bed March 17, 1927—78 — a 4 | type conveyor that extends 450 ft. along the outside the building covered loading platform. The nuffie conveyor the endless chain type. The coils are drawn through the conveyor dogs and are cooled somewhat during their slow movement through the conveyor. the coil the shipping building for stor- age, removed from the hook conveyor the end the conveyor line adjoining that building. loaded directly cars, moves along the conveyor its return circuit and removed from the hook with lever mechanism that drops the plat- form, directly into gondola cars track extend- ing along the platform. Strip Coilers and Vibrators When strip steel being rolled, section the run-out from the finishing mill replaced with another section that diverts the material table that leads fi unit consisting two 500-hp. motors shaft. The drive these three groups bevel gears. Breaking Spindles are provided the mill shafts and motor shafts. The finishing driven 1200-hp. d.c. motor. The first stand direct connected the motor through ing spindle and pinions, and the last three tinishir stands are belt driven from shaft the end the same motor. Direct current for the main drives supplied fro 2500-kw. motor-generator set. There also kw. motor-generator set for the auxiliary dividual drive from induction motor provided for each run-on roll the cooling bed, thus doing away with long line shaft belt. These motors are oper- ated from séparate inverted motor-generator set about 175 kva. rating. The mills and tables have semi-automatic through magnetic controllers located pulpits. There m Steel Rolled the Form Strip Diverted from the Finishing Mill Run-out Table Means Special Table Section. Guides turn edge and, passing through vibrator, goes slowly moving apron conveyor, the end which appears the middle foreground. From this the reel, center picture. The coils are discharged shown the which delivers them platform whence they are handled with crane two strip coilers. Guides the table turn the strip tor which causes take serpentine shape, which form carried two slowly moving apron con- veyors ft. long, the speed which much slower than that the table from which the material de- livered. This causes the material fold the conveyor, that there accumulation the ma- terial, which because the variation the speed reeling and because the reel operates much faster than the strip delivered from the mill. Before reaching the coilers the strip passes through punch and shear, which cuts off the end and punches hole near the end for hooking the material the reel. ‘The strip rolled coils to’42 in. diameter and these are discharged electrically-operated drag-off endless chain variable speed conveyor the muffle type, ft. long, similar that used for handling coiled rods. The conveyors are water cooled. The bottoms the cover plates, which are filled with water, are corrugated, give greater cooling effect. The conveyor discharges the coils from where they are handled overhead crane. Three Main Motors Drive Mill The 10-in. mill driven three main motors. The drive the first four roughing stands 1000-hp. 782—March 17, 1927, IRON AGE one for all mill stands, one for the rod reels, one for the strip and another for the kick- off the cooling bed and bed carry-over racks. The shearmen control the shuffle bars from the hot-bed and tables that handle the bars front and back the shears the,end the hot-bed. Over the 10-in. mill building, 800 ft. long and 100 ft. wide, roof the Aiken type, the more common monitor type. Between and the 12-in. mill building bay space for some the auxiliary the two mills. The coiling reels used with the mill and the strip located one side this bay. Connected the lower end the building oblique position. shipping building, 550 ft., which will serve both the and the 12-in. mills, equipped with ton crane. The crane runway the 10-in. mill ing extends far enough under the shipping building permit the shipping crane pick bun- dles bars deposited the the mill crane runway. Continuous Sheet Bar Mill continuous sheet bar mill has ‘our stands rolls and six stands 18-in. Located the blooming and billet mill building, mill adjoins parallel line the 21-18-in. billet his this IS 4 yo — e 4 4 d | Two stands been added the mill, whieh now has six and six 18-in. From the blooming mill there straight run-out the billet mill, but for the new sheet bar mill there transfer table from the run-out table hack the crop shear. this the bloom trans- ferred the run-on table for slab shear, which had used with the 21-18-in. mill and which line with the new 22%-in. mill. When the slag shear not being used, the bloom through into the first stand the 22%-in. mill. After the sheet bar leaves the last 18-in. stand fying shear cuts length. then carried run-out table piling rolls one side the sheet bar yard. The piling rolls discharge the sheet bars bar piler and picks the bars from piler and places them stationary type cooling bed the sheet bar yard, Three Shears for Varying Requirements interesting feature the billet mill now arranged the provision three shears the delivery tables before the steel reaches the storage yard. From the last stand the billet goes through flying shear, which cuts medium sized sections into lengths ft. The run-off table from the flying shear arranged front and back table for Morgan up-and-down shear. the billets are too large cross section, are cut into too short lengths for the flying shear they are cut the Morgan shear. Smaller sections are cut lengths down ft. with this shear. However, larger billets that are sheared shorter than ft. third shear, No. United shear, which has capacity for shearing billets all sizes down 2-ft. lengths. the United shear the short billets are kicked off four steel baskets 10-ton capacity, placed motor-operated turntable. When basket filled handled with the overhead crane. The larger billets sheared the Morgan flying shear 30-ft. cooling beds the billet yard. These beds, five number, are served 15-ton crane with 120-ft. span. Uses Largest Industrial Motor The 22%-18-in. continuous sheet bar mill driven 9000-hp. motor, the largest industrial type motor continuous rating ever built and the largest syn- chronous motor industrial use. This 6600-volt, phase, 25-cycle motor runs speed 107 r.p.m. and weighs 327,800 This said the first syn- chronous motor drive provided for mill this type. The synchronous motor used insure uniform speed regardless the load, that there will variation the length the bars when cut the flying shear after leaving the last mill stand. The motor has full control and operated through standard mill type master switch. The drive from the motor the mill through two line shafts, one 175 ft. long for the 22%-in. stands, and the other ft. long for the 18-in. stands, and bevel gears the mill pinion. The Morgan Construction Co,