Opening Pages
THE IRON New York, May 1928 ESTABLISHED 1855 VOL. 121, No. Anneal Each Heat Independently Close Control Features New Practice Malleable Plant—Ovens Charged Through the Top— Handling Devices Save Labor Costs BURNHAM FINNEY* long-established practice—has been abandoned the Southern Malleable Iron Co., East St. Louis, which has installed system single-heat annealing. strict adherence definite heat-treat- ing schedules the company has never had anneal run under 98.5 per cent, nor has produced over-annealed castings. Since malleable castings should show some combined carbon evidence that they have not been over-an- NNEALING malleable castings mixed heats— *Resident editor Cincinnati for IRON AGE. nealed, the percentage anneal determined the amount combined carbon the malleable test bar. close control the temperature during the anneal- ing process, the normal maximum 2.7 per cent combined carbon has been reduced average trace little 0.03 per cent. The annealing cycle for the castings from each heat scheduled after analysis the iron has been made. Consequently, the heat treatment made vary according the requirements necessary pro- duce perfect anneal. Obviously, castings from two Annealin…
THE IRON New York, May 1928 ESTABLISHED 1855 VOL. 121, No. Anneal Each Heat Independently Close Control Features New Practice Malleable Plant—Ovens Charged Through the Top— Handling Devices Save Labor Costs BURNHAM FINNEY* long-established practice—has been abandoned the Southern Malleable Iron Co., East St. Louis, which has installed system single-heat annealing. strict adherence definite heat-treat- ing schedules the company has never had anneal run under 98.5 per cent, nor has produced over-annealed castings. Since malleable castings should show some combined carbon evidence that they have not been over-an- NNEALING malleable castings mixed heats— *Resident editor Cincinnati for IRON AGE. nealed, the percentage anneal determined the amount combined carbon the malleable test bar. close control the temperature during the anneal- ing process, the normal maximum 2.7 per cent combined carbon has been reduced average trace little 0.03 per cent. The annealing cycle for the castings from each heat scheduled after analysis the iron has been made. Consequently, the heat treatment made vary according the requirements necessary pro- duce perfect anneal. Obviously, castings from two Annealing Are Lowered into the Ovens Crane, the Tops the Ovens Being Removable 1209 | | ______ = | heats that differ from each other much 0.05 cent cannot placed the same annealing oven. Annealing practice this plant calls for maxi- mum temperature 1720 deg. Fahr., which reached uniform rate increase hr. This tempera- ture held for specified time, then gradually re- duced determined temperature known mediate and later decreased temperature known equilibrium. These decreases are never more than deg. hour and often are only deg. The period covered this process ranges from 100 hr. means its mix and its single-heat annealing practice the company has found, from numerous tests, that, with three times the amount sulphur ordi- considered deterrent, the tensile strength the castings good that iron which the sulphur content Jow, and some cases better. putting into effect the new method, which specifies that only the castings from single heat placed annealing oven, the company has constructed ovens which differ materially design from those used most malleable foundries. Ovens Are Charged From Above Annealing ovens are built batteries 12, each oven being ft. wide, ft. deep and ft. high. Since they rest foundation ft. below the floor their height above the floor only ft. The interior walls each oven are lined with fire brick, and they are covered insulating material the The exterior consists steel jacket. The top, made insulating material, removable, having holes the four corners accommodate hooks. This design makes possible attach chain four hooks from overhead crane, and lift the top off the oven, when- ever annealing pots are put taken out. Special Carrier Suspended from Overhead Crane Has Three Hooks and Six Rings. tached the wheel wheelbarrow and two rings are slipped over the two handles. carrier capable holding three wheelbarrows loaded with castings. Thus the top, instead the customary door the front the oven, serves this purpose. Each oven holds eight annealing pots, the capacity each which 1200 1500 The design the ovens such that the pots can arranged two vertical rows, the pots being handled crane. All ovens are gas-fired and are controlled pyrometers. the duty one man constantly watch the temperature the ovens and take readings every min. The pyrometric equipment housed small wooden structure the end the row ovens. portable check pyrometer, which calibrated once week, used test the pyrometers. Eighteen test bars are made from each heat, that customers can obtain test bars every heat, called for within six months its date. Adoption this plan has eliminated the possibility dispute re- garding the analysis the iron. Furthermore, every casting size has two test lugs. One broken off the foundry immediately after the annealing cycle completed, while the other forms sample for the use customers. Iron melted 20-ton oil-fired air furnace, which has waste-heat boiler attached. the head the boiler suction fan. When the damper the fur- nace opened and the fan turned on, the hot gases going the furnace stack are drawn through the boiler. This boiler furnishes steam for the operation steam air compressor, which supplies 500 cu. ft. air minute. The air from the compressor carries pressure 100 lb. and used for molding, sand blasting and sand riddling. either side the furnace stack there are large openings, just above the channel, where hot gases pass the boiler. The cold air that introduced, mixing with the hot gases the stack, modifies the tempera- One hook at- this manner the The photograph shows the castings ready dumped platform over the tumbling mills 1210—May 1928, The Iron Age | reat Hard Iron Department—Compact Arrangement Minimizes the Handling Castings ture such extent that the upper part stack never hot enough glaze the brick, thereby ma- terially increasing the life the lining. The melting time 18-ton heat considerably less than that the average coal-fired furnace, because greater efficiency combustion. The experience the company with oil instead coal fuel for the furnace has proved that better control achieved and time and labor are saved. These items over long period time mount impressive figures from the standpoint costs. Two men operate the furnace, against four five the case coal-burning fur- nace. Incidentally, the first heat the day comes off a.m. and the second p.m. Treatment Castings After Heat Within min. after heat poured, all the castings are broken off the gates, and the sprues and castings are wheelbarrows placed under monorail conveyor. From overhead crane suspended special carrier having three hooks and six rings, which picks the wheelbarrows. One hook attached the wheel the barrow and two rings are slipped over the two handles. this man- ner the carrier takes three wheelbarrows loaded with castings, transports them platform the hard iron department and dumps them. The carrier then returns the three empty wheelbarrows the molding floor. Since wheelbarrows are standard equipment and replacement parts can purchased quantities low price, this form container has been given pref- erence over others. Compactly arranged that the handling cast- ings minimized, the hard iron department has some interesting features. From the platform, which ft. height, the castings are dumped into chute leading directly the tumbling mills located below and just one side the platform. The castings pass into the mills through hinged door, which opened and held position small carrier attached overhead monorail. The mills are operated electric chain drive under the platform. From the mills the castings are dropped tables where they are inspected. Any defective castings are put into wheelbarrows under the tables, while the others are chipped workmen, who place them tables immediately behind them, ready for grinding. After the castings are ground, they are again inspected and are counted and weighed. each casting molder’s mark, that possible ascertain the number castings that each molder produces. The number and weight are recorded ticket, from which the molder’s pay computed. One copy the ticket goes the office and the other the molder. this way each molder knows every day exactly what has earned the last heat accounted for, which usually the third day after the iron cast. Disputes regard- ing the amount work done are thus greatly reduced. After inspection the castings are placed anneal- ing pots ready for the annealing operation. Only case small castings packing used, and then only hold the castings straight for annealing purposes. Castings are not pickled because rust set under the scale which causes the scale drop off. Moreover, oxidizing condition created which may continue indefinitely. many foundries silicon and carbon are considered the two most important factors annealing. Here, however, all elements are regarded having direct bearing the way castings are annealed. When the annealing operation has been completed, test bar taken from one the annealing pots broken. From the appearance the fracture de- termined further progress the castings. the an- neal has been satisfactory, the castings are dumped from the pots the floor, where they are picked magnet and taken elevated platform the same height that the hard iron From the platform they pass the malleable mills the sand blast room, after which operation they are as- sorted. Stove plate castings the straightener straightened either hand drop hammer. this point they pass final inspection, during which only the surface examined, and are packed ready for shipment customers. Charges Made Mechanically Materials used making charges for the melt- ing furnace are handled mechanically. Pig iron taken magnet attached overhead crane from The Iron Age, May 2 4 ? Patented Special Vent Board Which Eliminates Possibility Rats and Pin-Holes Castings. 3 The device consists backing device with number venting pins wires the receiving bin bins the charging department. Here pig iron, sprues and other scrap are picked the magnet and are dropped into charging buckets, which are weighed and are carried monorail bridge crane the furnace. following this pro- cedure crane operator and three other men make + two 18-ton heats daily. Equipment includes number buckets which charges are prepared considerably ahead the time when they are needed. result the average time required charge the furnace with tons materials only min. For mechanical handling materials the foundry served monorail crane system which are yperated three hoists with cabs. The operator the first cab has charge the east end the foundry, and his duty transport pig iron from the receiving bins the charging department and sand the ing floor. addition, makes the charges and takes them the melting furnace, bringing back the charging department filled with sprues. The operator the second cab distributes sand the molding floors and carries core racks from the core room the core set- ters. The third operator responsible for transport- ing castings from the molding floor the tumbling wheelbarrows mills and for loading and unloading the annealing Special Vent Board Features Molding the molding department air-operated portable molding machines are used. The gangways between the rows molding floors are made concrete for the convenient transportation the machines. Sand tested for moisture and for bond, and every casting faced with special facing sand, the preparation and testing which are charge one All molds have perforated metal bottom-boards permit the gas escape through the bottom the mold. addition, every molder has patented special vent board, the 1212—May 1928, The Iron Age application which eliminates rats and pin-holes the castings. This device comprises board other backing de- vice, which may may not part the flask, with number venting pins wires. Made case- hardened steel, the pins wires are varying lengths and are arranged that the vent holes which they produce are the proper depth permit the steam and gas escape from the mold, all vent holes ter- minating approximately the same distance from the cavity, even though may irregular shape. When mold made molding machine the venting pins wires may attached to, and movable with, part the molding machine. paramount importance connection with the process the fact that the venting pins wires are distributed the board other backing member which they are secured produce configuration corresponding the shape the cavity the mold. desired, the venting pins wires can attached the board other backing member that they can individually removed. this arrangement certain the pins wires can located various angles avoid such conditions the mold blows. this case the angularly-arranged pins wires can indi- vidually removed from the board before with- drawn from the mold. All molders wear white duck pants and the foremen the molding floors are white union-alls. When pouring iron, the molders are required don canvas leggings. The clothing laundered weekly the company and its expense. Avoiding Excessive Handling Cores the core room large racks are placed immediately The green sand cores are put the racks which, after being filled, are picked lift trucks and placed gas-fired core ovens, which When the cores are properly baked, behind the core makers. there are four. ovens. = the racks are removed from the ovens lift trucks and are put under the crane runway, where they are picked monorail hoists and are carried various parts the molding floor. After the cores have been taken from the racks the core setters, the empty racks are returned the monorail hoists the core room, where they are again placed behind the core makers, refilled. following this method, the company has avoided unnecessary handling cores the workmen. exception made the case cores delivered nearby parts the molding stead racks, carried air hoists. The entire foundry consists large area without partitions. This arrangement advantageous giv- ing supervising officials opportunity see moment what going any part the plant. Furthermore, the absence partitions conserves floor space and thereby cuts down plant investment. Can Make Own Power Emergency Unless some adequate provision made for meeting emergencies, companies depending upon outside sources for power are likely experience much difficulty and considerable loss case breakdown. Anticipating such situation, the company has established adjoin- ing its foundry small power house equipped with Diesel engine (manufactured the Busch-Sulzer Diesel Engine Co., St. Louis) and generator set. This electrical unit for use com- pleting heat case trouble develops the outside power line. fact, the value this reserve unit has already been proved, for several occasions work would have had suspended the emergency equip- ment had not been available. The Southern Malleable Iron Co. the only manu- facturer malleable iron using the single-heat an- nealing ovens described. Durbin, manager, states that the company’s method determining the per- centage anneal the amount combined carbon not only new, but also probably the only accurate way finding out the percentage the anneal. The value, says, lies the fact that practically losses have been incurred the form defective castings, and that the quality the castings has been above the average. connection with the new practice mak- ing malleable iron, the company has number patents pending. Continuous Furnace Heat Tons Billets Hour The continuous furnace serve the continuous mill being built for the Timken Roller Bearing Co., Canton, Ohio, the Mesta Machine Co. will furnished the Rust Engineering Co., Pittsburgh. The heating hearth will ft. wide ft. length. The fur- nace will have output gross tons billets ft. length. give this high tonnage, billets will charged the side, pushed the length the heating hearth and discharged from the opposite side the fur- nace directly into the first stand the continuous mill. The fuel used will natural gas. Combus- tion control and draft regulation equipment will furnished the American Heat Economy Bureau, Pittsburgh. Electric Steel Staybolts Tested Locomotive Service test out staybolts made electric steel, com- parison with those made charcoal iron, the Atlantic Coast Line Railroad fitted one side the fire box engine 921 with the one type staybolt and the other side the same fire box with the other type. This in- stallation was made May, staybolts both types being the product the Old Dominion Iron Steel Works, Richmond, Va. Periodical reports made the general superintendent motive power the railroad have shown how these different types stay- bolts have stood service. the table are listed the number bolts which had removed vari- ous dates, the latest being Jan. 31, 1928. Removed Charcoal! Prior To/ Iron Steel tatio Jan. 1, 1925.. 32 11 2.9 July 1, 1927 15 3.4 Jan. 31, 1928 4 a Core Room—Large Racks, Which Are Lifted Jack-Lift Truck, Are Placed Immediately Behind the Core Makers The Iron Age, May 1928—1213 “ andless Foundry Makes Progress Plant Holley Carburetor Co., Detroit, Has Developed Long-Life Mold Production Successfully—Large Output Obtained Relatively Small Space With Unskilled Labor HARRY Holley Carbure- tor Co. Detroit was one the first the buretor manufacturers produce carburetors hav- ing cast iron bodies. Great the difficulties enced castings that were imper- vious gasoline and com- cause cross-section these 2-lb. which have Malleable iron castings and box annealed castings. adoption the long-life permanent mold the Holley Carburetor Co., De- troit, was the subject paper read Dr. Richard Moldenke before the 1923 convention American Association Cleveland and published THE IRON AGE ing May 1923, page 1251. article written for THE IRON AGE the author, member the Holley organization, describes mercially machinable, be- the results which have been achieved the use the long-life mold and the improvements duced large quantities the Holley molding ma- chines. The Holley foundry two-story steel and con- crete building, having the core room and the mold- department second floor, and the an- nealing, cleaning and in- spection the ground floor. balcony, ft. wide, extends over the en- the following been deve lope practice and tire length the core the design the machines used.—EDITOR. room. All the core sand mixed this bal- castings were tried with fair success, but were not comparable with gray iron when price, ma- chinability and appearance were considered. The demand for this particular carbureter increased steadily, while fewer foundries were could produce satisfactory castings, until only one foundry remained dependable source supply. The management decided that the permanent long-life mold was possible way out this uncom- fortable situation, and experimental work 1922. They knew that unprotected cast iron mold was impractical; intensive search was soon under way find suitable protection for such Many coatings were tried before the satisfactory com- discovered. This which cheap, easy prepare, easy apply and per- manent, made the Holley long-life mold definite suc- cess. Production was begun once the above- bination was refractory coating, mentioned casting, and when was finally discontinued over 7,000,000 castings had been produced Holley molds little over two years. Adopted Ford Motor Co. and Others Henry Ford became interested this mold and the automatic machine which was developed carry it. The Ford Motor Co. now has nine these machines its foundry, producing hundreds thousands small gray iron castings for the Model car and pistons for the Fordson tractor. Thousands cast iron pistons were also made for the Model car this process. The carbureter body for the Model now being pro- duced large quantities these machines the Hol- ley Carburetor Co.’s new sandless foundry. The production possibilities this machine were soon recognized manufacturers and foundrymen both this country and Europe, and many them now are using the machines their own foundries. The Deleo Remy Corporation, subsidiary the Gen- eral Motors Corporation, completing plans for the erection new 100-ton sandless foundry Ander- son, Ind. Castings ranging from oz. thick and thin, and with and without cores, are now being pro- *Holley Carburetor Co., Detroit 1214—May 1928, The Iron Age cony and delivered the coremakers’ All high-production cores are made core-blowing machines, and every core used treated with core wash. There one No. Whiting cupola lined in. operation. The building was designed, however, for two cupolas and mechanical charging. The molding department, which ft., con- tains eight automatic 12-headed rotating machines and eight No. single-headed machines, which are manual- operated. The molten iron delivered these ma- chines with 300-lb. bull ladles, which travel over- head monorail. The hand ladles are suspended pairs from specially designed mast such manner that one ladle may filled from the bull ladles while the operator filling molds with the other. this way the operator always has hand ladle full iron ready for him when the one that using becomes empty. means hoppers. Automatic Turntable Carries Molds The automatic machine consists turntable carrying molds. rotates intermittently with indexing time approximately sec. The operator the knockout position starts the machine rotating, but stops automatically means trip switch. The molds are poured while the machine tionary. The mold first cleaned com- pressed air and then re-coated with coating lamp black for every casting. This accomplished with specially designed cleaner and acetylene burner. After passing this burner, the cores are put place operator and the table continues rotate until the mold arrives the pouring station. When the pouring, which takes from sec., completed, the operator pushes button and the next mold moves round the pouring station. The mold that full iron continues around certain point, where opens, and the casting, which has set but still red hot, ejected. This cast- ing drops into hopper the floor inclined chute which delivers continuous pusher-type, ras-fired annealing furnace the first floor beneath. enters directly into the furnace temperature approximately 1000 deg. Fahr. and rapidly brought | | | OURING Molds Holley Molding Machine (Above). The machine carries per- manent molds and rotates with indexing time about sec. one these mold- ing turntables 7500 castings are being pro- duced hr. The curved pipes shown carry air the molds control the temperature. The biower arranged that heated air blown the molds cold weather, while air drawn over them and exhausted out the building hot weather Molds Are Poured from Hand Ladles Suspended from Mast and Arranged That One Ladle Being Filled from Bull Ladle While Molds Being Filled with the Other Ladle (Right) Some the Larger Castings, Such Tractor Man- ifolds, Are Made Single-Headed Manually Cp- erated Machine (Below) The Iron Age, May 1928—1215 - 1600 deg. Fahr. held this temperature for min. and allowed hr. cool 900 deg. Fahr., when leaves the furnace tumbled, snagged and sand blasted. After the final inspection ready for shipment. One Machine Produces 7500 Plain Castings Per 8-Hr. Day One these automatic 12-headed machines pro- ducing 7500 castings (without cores) while an- other producing 4000 cored castings hr., with average scrap loss considerably below per cent. The molds both cases are designed for two castings. The No. manually operated machines are used the Holley foundry for the production the Ford trac- tor manifold, with the intake and exhaust cast together. One operator produces 200 these 22-lb. castings hr. with two machines. cleans and soots the mold and sets two cores for each casting. One pourer ser- ces four machines. This means that two operators and one pourer pro- The molds are cast size and require very little machining. After the machine work completed, they are heated about 500 deg. Fahr., and the refractory coating applied the face the mold with soft brush. previously stated, this coating permanent, but does wear off places where there only slight draft and the sprue. These spots are touched the end the day’s run while the molds are still hot. Care the molds most important, though simple, task. the beginning the day the molds are heated with gas temperature 500 deg. Fahr. before the first castings are poured. From then the pouring continuous throughout the day, except when the crew out lunch. Cupola Practice Follows General Production Foundry Methods The cupola practice, therefore, the same that any other production foundry. The first iron tapped 7.30 m., and the melting continuous until m., when the bottom dropped. The tuyeres duce approximately tons cored castings hr. are cleaned out twice during this period, and the slag e SAL Numerous Pins Are q § “ castings are quite bulky, and therefore occupy considerable floor space sand foundry. The four machines occupy area 200 sq. ft. floor space. The cost these 12-headed and the hand-operated machines compares very favorably with the cost sand-handling and pattern equipment and completely eliminates the mold and sand conveyors which are necessity the modern high-production sand foundry. Improvements Made Recent Machines number machines have been designed and built during the last five years, and with each succeeding design, improvement has been made. Water and oil cooling mediums were experimented with, but air was finally selected because its safety, efficiency and the simplicity its application. The rotating 12-headed machine has recently been redesigned and now under construction. de- cided improvement over the machines now service. The molds now use are cast dry sand molds with the same iron that used for the castings. These molds have multiplicity pins cast the back, and, when mounted the machine, low-pressure air passed over these pins the rate 100 200 cu. ft. per min. The volume air regulated that the temperature the mold remains within certain range. One the pictures shows the pipes that carry this air the molds. The blower overhead along the wall the building, and arranged that the air blows the molds cold weather, and drawn over them and exhausted out the building hot weather. This takes care the heating and ventilating the foundry very satisfactorily. series tests with molds cast various alloy irons now progress but will not completed for some time. However, with proper control the cool- ing system, ordinary gray iron molds have average life 15,000 castings the automatic machines. 1216—May 1928, The Age tions hole kept open from until the bottom dropped the afternoon. The blast pressure mixing ladle used, but the cupola bottom de- signed hold about tons molten iron. This en- ables the cupola tender supply the traveling bull ladles all times. The charging done hand and every charge weighed. The charge follows: Pig iron 500 Ib. Scrap ... 500 lb Limestone 75 lb Coke. 150 Ib The analysis the resulting cast iron follows: Per Cent Total carbon . 3.50 Silicon 2.50 0.090 Manganese ........ 0.55 alloys special fluxes are used any time. The slag greenish gray color, indicating proper melting conditions the cupola. Production has not been interrupted because cupola trouble more than two years, record which the management very proud. The average daily melt tons for hr. Between and 12.30 the wind off for part the time while the various machine crews are taking their half hour for lunch. Test bars are poured off four times day; 9.3 and 11.30 and and These bars are Brinelled and analyzed daily. determine the effect that the Holley mold has upon cast iron, American Society for Testing Mate- rials standard test bars were cast both green sand and Holley mold from the same ladle. Those cast the Holley molds were given the regulation annealing. Some each these bars were sent several dif- ferent testing laboratories, and their reports were al- most identical. every case and every test the | sand castings were inferior. summary these tests follows: Tensile strength (standard A.S.T.M Impact Olsen machine, ft.-lb.... Formation Large Graphite Flakes Prevented When one stops consider, this great difference physical properties expected. The rapid rate cooling produces very fine grain structure and prevents the formation large graphite flakes. Car bon has atomic number compared with for iron. other words, unit weight carbon will occupy almost five times the space the same unit weight iron. This means that enormous pres- sure generated within the casting itself when the graphite begins separate out the instant solidi- fication. This also prevents the formation large and graphite flakes and eliminates internal shrinks. The subsequent annealing relieves all casting strains, and, final result, the finished product has qualities which enable the machine shop increase production from per cent. this saving, added the saving producing the castings, which has justified the Holley Carburetor Co. spending the time and money the development this process. The outstanding features the Holley process are very large production relatively small space with unskilled labor. The resulting castings are stronger, easier machine, freer from blow holes, shrinks and sand, and cost less produce than sand castings. general, the Holley process lends itself the modern trend toward mass production. Materials Handling Variety Methods Engineers Discuss Cost Saving Features Special Shipping Con- tainers—Pneumatic Systems ANDLING materials transportation entities occupied the attention the Philadelphia meet- ing the Materials-Handling Division the American Society Mechanical Engineers the morning session April 24. Three papers were scheduled, which only two were delivered. The paper “Store-Door Delivery Freight Motor Trucks,” Scarr the Scarr Transportation Service, New York, was deferred because Mr. Scarr’s illness. Two papers read included “Modern Handling Methods Railroad Transportation,” Woodruff, assistant freight traffic manager New York Central Railroad, and “Materials Handling Steamship Piers Home and Abroad,” Willard Brinton, president Terminal Engineering Co., New York. Mr. Brinton’s paper was illustrated lantern slides, which discussed some length they were shown. Two sessions the afternoon were devoted respec- tively interior handling and bulk handling (coal, ore, ashes, etc.). “Modern Handling Enameling Work,” Edwin Smith, will appear early issue THE IRON AGE. “Pneumatic Handling Ma- terials,” Harry Parks, follows, abstract. Pneumatic Handling Materials ANTERN featured the presentation paper Mr. Parks, who engineer the Holly Pneumatic Systems, New York. The paper traced something the history the development the pneumatic method, before going into the details the Holly system. The author defined pneumatic convey- ing system “of high-velocity stream which the material conveyed suspended.” Generally speaking, Mr. Parks was not inclined place limit the distance material could trans- ported this means. Practically, however, the sys- tems are usually not over 350 400 ft. length un- less there booster inserted. Occasionally, however, line much 800 ft. long used. The vacuum system consists suction nozzle, pipe line, re- cipient, discharging device which extracts the ma- terial from the air stream without breaking the vacuum. Suitable apparatus must provided for cleaning from the air stream all finely divided material and thus preventing from carrying over into the vacuum equipment. Advantages the System Such system handling not only extremely flexible, but makes possible wide variety combina- tions. Among the particular advantages pneumatic conveying may enumerated labor saving, dustless operation, low upkeep maintenance costs, and ease installation. There are shovelers other manual laborers. One man can handle all the material direct, without intermediate handling. Being nothing but pipe line, pneumatic conveyor can bridge gaps re- sulting from the plant layout. There dust pneumatic handling. thus eliminates unhealthful working conditions and prevents great amount waste and spoiled material. many cases ends serious fire hazard. Where handling combustible materials, however, pneumatic systems must adequately protected suitable grounding against static sparks. there are few moving parts the system, maintenance costs are reduced minimum. the material suspended the center the channel flow, does not come contact with the conveying line, except the elbows turns. Here the wear confined and replacement worn elbows provided for the design. Even then the wear not serious, except handling abrasive substances. Ease installation promoted the fact that pneumatic conveying system almost wholly pipe- fitting job. The principal equipment easily located and takes little floor space. The conveying lines can laid out over under roadways, the side build- ing, through it, wherever required. Heating Automobile, Furniture Sheets Continuous Pack Method Continuous pack heating sheets done new furnace now under construction the plant the Newton Steel Newton Falls, Ohio. The Rust Engineering Co., Pittsburgh, making the installa- tion, which, expected, will completed and operation about six weeks. Continuous pack heating tin plate gages sheets has been practised, but this will the first application the method sheets, and this case automobile body and metal furni- ture sheets, the principal tonnage the Newton com- pany. The new furnace ft. wide and approximately ft. long inside, and will have output tons shift. The packs are carried through the chamber Kathner-type disk rolls, manufactured the Duraloy Co., Pittsburgh. Producer gas the fuel. Preheated air supplied alloy metal recuperator. The Iron Age, May Wig . = W. S. MOSHER, SR. I. W. FRANK Vice-President, 1896-1900 Vice-President, 1897-1898 Living Founders HOWARD EVANS A. I. FINDLEY Treasurer, 1896-1900 A , A Vice-President, 1902 Ae Some the men who became officers after assisting organizing the American (See article page Ss. D. SLEETH ice-President, 1901 JESSE JONES STANLEY G. FLAGG Director, 1926 to 1928 President, 1907-1908 JOHN A. PENTON WALTER WOOD 9 Secretary, 1896-1899, lice-President from 1909 Vice-President, 1900 to 1916 | Ss. T. JOHNSTON Vice-President, 1908 A. W. WALKER President, 1902-1903 and 1927-28 1218—May 1928, The Iron Age American oundrymen’ Association Meet Philadelphia, May American Foundrymen’s Association will hold its convention and exposition foundry equipment and supplies Philadelphia during the week May 14. The exhibits will the Commercial Museum, where will assembled many new and improved ma- chines for the modernization the foundry and also the time-tried equipment developed re- cent years. This will the first exposition the American Foundrymen’s Association since that held Detroit September, 1926, and the interim progress has been made many lines associated with improvement foundry practice. feature this issue THE IRON AGE the presentation pages which follow stallations equipment that have brought the standard foundry work, have increased production and reduced costs. Illustrations some the new equipment exhibited Philadelphia are also found this issue. . . ry re and Products They Will List Exhibitors and Products They Will Show American Boron Products Co., Inc., Buffalo. Booth No. 216. Boronic alloys. Representatives attending: Menden- Abrasive Co., Booth Nos. 136, 138. hall, Sharp, Demonstration of snagging wheels, including the Red Center Borolon Bakelite, Borolon Vitrified. Electrolon American Brake Shoe Foundry Co., Chicago. Booth No. and the Bond Representatives American Engineering Co., Philadelphia. Booth Nos. 105, attending: Samuel Hershey, Burnes, 107. 109 I. R. Blair. control; a 220-volt, 3-phase, 60 cycle, a.c., 2-ton hoist Adams Co., Dubuque, lowa, Booth No. 131. with 2-speed control, cage controlled, with fully Adams jolt squeezers, pneumatic sand riddle, cherry snap closed motor driven trolley and 2-speed squirrel cage flasks, cherry slip flasks, steel jackets, steel bands, vi- motors both hoist and trolley; new pressed steel brators, rappers, sprue cutters, etc., steel plates hoist recently added the Lo-Hed line three Representatives attending: Waldo Adams, Lester Dem- types; with plain trolley, with bolt suspension, with kier, Spensley, John Cameron. hook suspension; other Lo-Hed monorail hoists and Air Reduction Sales Co., New York. Booth Nos. 489-491. Combs, George Drake, 99.5 per cent oxygen, Airco acetylene, Hummel National Carbide and Airco Davis-Bournonville appara- tus for oxyacetylene welding and cutting; Argon, Neon, American Foundry Equipment Co., Mishawaka, Ind. Block Helium and other rare atmospheric gases; demonstra- Complete line foundry equipment, including sand-cut- tions with hand welding and cutting outfits, and the ting machines, lasks, sand-blast equipment, rod Radiagraph and Oxygraph, motor driven machines for straighteners and shears, core machines, tumbling bar oxyacetylene cutting. tepresentatives attending: W. W rels, dust arresters and incidental equipment Also a Barnes, Eliason, Hand, High, new tumbling barrel and the new American Preparator, Trout, Humphreys, Judelsohn, Peters, sand preparing machine Rogers, Helmkamp, and Van Alstyne American Co., Cleveland. Booth Nos. 334, 336. Ajax Electrothermic Corporation, Trenton, Booth Overhead MonoRail conveying equipment Consisting No. 484 overhead MonoRail tracks, trolleys, switches, cranes, Ajax-Northrup high frequency induction fur- chain hoists, electric hoists Representatives attending 500 Ib. high frequency furnace for steel melting. Repre- Miller, Jeffs sentatives attending: Clamer, president and gen- American Saw Mill Machinery Co., Hackettstown, eral manager; Dr. Northrup, vice-president and Booth No. 195. technical adviser; Dudley Willcox, secretary and treas- urer; Blakeslee, Chesnut American Abrasives Co., Galion, Ohio. Booth No. 299. Samples of American “Eversharp”’ steel grit, and Ameri- Ajax Metal Co., Booth Nos. 481, 482, 483, 484. can standardized steel shot: metallic abrasives for use Brass and bronze ingot metals, also castings produced blasting equipment for the cleaning castings, forg- customers from these ingots; Ajax ings, heat treated parts, tepresentatives attend- metals; Ajax-Wyatt electric furnace; types Ajax- ing: Cline, president and treasurer; Layton, Northrup electric furnace and accessories vice-president and general manager; Ira Armstrong tatives attending: Clamer, president and general manager; Coane, ‘first vice-president and general American Vent Wax Co., Lockport, Booth No. 210. sales manager: Frank M. Willeson, Zeno D. Barns, A Vent wax Representative attending: N. L. Nankey MacDougall, Millson McClure, Ames Shovel Tool Co., Boston. Booth No. 289. William Adam, Dr. Edwin Northrup, Dudley Wilcox, Swift Blakeslee. Arcade Mfg. Co., Freeport, Booth Nos. 383 387. Sand Supply Co., Albany, Booth No. 344. Power moderns—jolt, rollover, squeezer, pattern draw; Foundry sand. hand moderns—rollover, squeezer, pattern jolt Alloys and Products, Inc., New York. Booth No. 291. stripper, air stripper, jolt squeezer, jolt squeezer (heap Deoxidizers, densifiers, hardeners, technical alloys, rich straddler), core machines, pouring devices. Represen- alloys and special alloys ingot, shot and lump form. tatives attending: Munn, vice-president and gen- attending: Henry Hecht, president; eral manager; Trueblood, treasurer; Mentor Wheat, Charles Vickers, Adam Hecht, Frank MeCaul, sales manager: Henry Tscherning, Firestone, Gilbert Mason, John Fletcher, William Bullock, August Christen, Turnbull, Herman Kasten, Charles Harney, Berliner. Wolfley, Herman Meyers, William Herman. Co., Inc., New York. Booth No. Asbury Graphite Mills, Asbury, Booth No. 81. The Iron Age, May 1928—1219 Rice Laird Park Park & Williams, Inc.. Philadel phia. Philadelphia. Philadelphia. Chairman, Secretary, Chairman, General Committee General Committee Reception Committee Cc. H. Clamer Ajax Metal Co., Ajax Metal Co., Austin Co., Cleveland. Booth Nos. 83, 84. The Austin method pI he de ent a nstruction of complete foundries shown by means of a é ind rial-h lliz quip il | itive ttending \ Automatic Transportation Co., Buffalo. Booth Nos. 315, Axmann Sand-Throwing Machine Co., Cleveland. Booth Nos. 79 fa, Axmann nd-throwing hine operation, condition ling overhead sand bins, conveying sand tending: S. L. Dryfo« vice-president and general man- Beltaire, Ayers Mineral Co., Zanesville, Ohio. Booth No. 257 The Baker-Raulang Co., Cleveland. Booth No. 312. RB er elect ! omotive-type rane 3000-lb. capacity at 7 ft radiu Baker electric hy-lift tru H0-in. lift f capacity; Baker seris D 3-ton elevating truck pecial foundry type Representatives attending: H. B Greig, C. H. Remde, D. L. Darnell, H. W. Faunt Le Roy 5. M. Conant, Nathaniel Platt, H. C. Sherer. Cc. O. Bartlett & Snow Co., Cleveland. Booth Nos. 401, 403, 466, 468. i blender, pug mil conditioner, elevator ture large production foundry operation Represer H. L. Baumgardner Corporation, Chicago. Booth Nos. 405. 470. Bausch & Lomb Optical Co., Rochester, N. Y. Booth No 201. ittendir I. I. Nixon, J, A. Scheick, |! H Ay Beardsley & Piper Co., Chicago Booth Nos. 407, 409, 411, 474, 478, 480 Berkshire Mfg. Co., Cleveland. Booth No. 450. Molding hines and vibrators, jueezers, pattern draw machines, aluminum flasks Representative ittending Guy L. Cameror H KF He Co., Bethlehem, Pa. Booth Nos. 239, 292. Autom« le engine carbureter casting, electric re- } rigeration cylinder casting, number small castings, and other castings, all made with pig iron. Representatives attending: Messrs. MacDonald, Fisher and Pritchard, and representatives from Bethle hem district offices Boston, New York, Philadelphia, Pittsburgh and Baltimore Biax Flexible Shaft Co., New York. Booth No. 370. Black Diamond Saw Machine Works, Natick, Mass. Booth No. 179. 1220—May 1928, The Iron Age Black Decker Mfg. Co., Towson, Md. Booth Nos. 27, 29. Blaw-Knox Co., Pittsburgh. Booth No. 93. Blaw-Knox clamshell buckets, steel grating and open flooring, air preheaters, standard steel buildings, Tracy- fiers (steam purifiers). Representatives attending: Harrington and Hemmerle. Bloomsbury Graphite Co., Bloomsbury, Booth No. 241. Foundry facings, Ceylon plumbago, Ceylon silver lead, plumbago core wash; all grades Cey- Wolverton, vice-president and general manager; Murphy. Botfield Refractories Co., Philadelphia. Booth No. 430. Adamant fire brick cement, brick, Adachrome, Adachrome- fines, Adapatch Representatives attending: Smith, Lott, Ires Prosser, Sweeney. Box Crane Hoist Corporation, Philadelphia. Booth Nos. 96, 98. Type heavy duty standardized crane trolley 10-ton ipacity; type hand operated crane trolley; load lifter electric hoist; type electric hoist for alternat- ing current operation and equipped with foundry control; type electric hoist combined with motor operated trolley for running on I-beam track. Representatives attending: George Mitchell, secretary and sales man- iger; Arthur Hogrebe, Henry Schramm, Harold Noble, Myles Jones. Washfountain Co., Milwaukee. Booth No. 112. One 54-in. type (foot-controlled) white marmorite Bradley washfountain Representative attend- ng: Alec Hicks. Brown Instrument Co., Philadelphia. Booth No. 259. Temperature measuring equipment for core drying; indi- cating and recording pyrometers for annealing malleable castings, cupola thermocouple assembly for record- molten iron temperatures; quick temperature reading non-ferrous molten metal temperatures; equipment for economically controlling galvanizing temperatures; Brown electric flow meters shown for first time the foundry field. Representatives attending: Brown, president; Keller, sales manager; Goheen, secretary; Morley, Mr. Mr. Knoblauch. Buckeye Portable Tool Co., Dayton, Ohio. Booth No. 395. Complete line portable tools, drills, grinders, sanders, screw drivers, nut setters, etc. Representatives Barden, Campbell-Hausfeld Co., Harrison, Ohio. Booth Nos. 311, 313. Carborundum Company, Niagara Falls, Booth Nos. 267 273. Abrasive division: A complete line of snagging wheels for the foundry trade, including Carborundum and Aloxite wheels and high-speed wheels Redmanol and rubber bonds. Representatives attending: Courter, general sales manager; Griffith, Kretschmar, Maguire, Henszey. Refractories division Small core oven with part one side and front removed show method applying Carboradiant model of malleable iron annealing furnace; sectional Carborundum lid and lining for brass melting pit fur- naces; sample jars Carborundum No. cement and Firefrax cements Nos. and Representatives attend- Ajax Metal Co., Roberts Mander Whitehead Metal Philadelphia. Co., Products Co., Member Hatboro, Pa. Philadelphia. Reception Committee Member Member Plant Visita- Reception Committee tion Committee | | ing: Hawke, general sales manager; Fritz- Fenno. Globar division: small pot type non-ferrous melting furnace; display high temperature furnace showing Globar heating elements and terminals actual operation. Representatives attending: Shaw, Arnold Pfau, Jr. Carr Fastener Co., Dot Lubrication Division, Cambridge, Mass. Booth No. 167. Industrial lubrication devices for bearings machinery used foundry industry; Dot guns and nipples, Dot- O-Matic pressure cups, electric lubricator, Dot lubricant; also Dot lubrication standard equipment the Sand- slinger exhibited Beardsley Piper Co., Simpson mixer manufactured National Engineering Co., and sand blast mill Sly Mfg. Co. Representa- tives attending: Louis Hein, Hall, Niven Chicago Crucible Co., Chicago. Booth No. 207. Graphite, crucibles refractories; special refractory shapes. attending: MacFadden, vice-president; Jones, Barney Bernbaum, Moses, Frank Maujean, Leo Behrendt. Chicago Pneumatic Tool Co., New York. Booth Nos. 36. air compressor, chipping hammers, sand rammers, riveting hammers, air grinders, pneumatic drills, pneu- matic wood-borers and air hoists; also Hicycle electric grinders, drills, reamers, nut runners and Hicycle fre- quency changer. Representatives attending: Goodhue, Huvane, Harris, Estergreen, sen, Straub, Brown. Chisholm-Moore Mfg. Co., Cleveland. Booth No. 363. “C-M” electric hoist; Cyclone high-speed, spur-geared chain hoist; new improved ball bearing Model I-beam trolleys, overhead traveling cranes, cupola charging equipment. Representatives attending: Mears, sales manager; Seaman, Morgan, Clark Tructractor Co., Battle Creek, Mich. Booth No. 53. Clarktor sand digger exhibited for the first time. Repre- sentatives attending: Burrows, president; Clark, vice-president; Burnside, Rampell. Clearfield Machine Co., Clearfield, Pa. Booth Nos. 393, 395. Machine for mixing, tempering, and bonding foundry sand. tepresentatives attending: Reed, general manager; Cleveland Electric Tramrail Division, Cleveland. Booth Nos. 26. working exhibition Tramrail equipment especially adapted foundry uses, consisting necessary crane runway with standard Tramrail underslung type crane ft. span, and track system Tramrail showing operation number types Tramrail carriers, including push-button pouring device, turntable pour- ing device operated and controlled from the operator’s rack for use conveying flasks about the foundry. Cleveland Co., Cleveland. Booth Nos. 418, 419. Cleveland Pneumatic Tool Co., Cleveland. Booth Nos. 432, 434. Clipper Belt Lacer Co., Grand Rapids, Mich. Booth No. 420. Clipper belt lacers, fasteners, cutters, with safety feature connecting pins; also the new Clipper speed lacer which will lace both ends 8-in. belt min. tepre- sentative attending: Carl Field. Cresson-Morris Co., American Manganese J. S. MeCormick Co., Philadelphia. Bronze Co., Chairman, Plant Philadelphia. Member, Plant Visita- Visitation Committee Chairman, Golf tion Committee Committee Cresson-Morris Co., Olney Foundry Co.. Foundry Equipment Philadelphia. Philadelphia. Member, Plant Visita- Member, Plant Visita- Philadelphia tion Committee tion Committee Member, Plant Visita- tion Committee Thomas Coale Lumber Co., Elizabeth, Booth No. 488. Combined Supply Equipment Co., Buffalo. Booth No. 265. Angle Stem and Double Angle chaplets. Representatives attending: Stephen LeViness, Jr., LeViness. Corn Products Refining Co., New York. Booth No. 260. Corebinders, Kordek and Mogul. Representatives attend- Dayton Oil Co., Dayton, Ohio. Booth No. 229. Core oils and cores all kinds. Representatives attend- ing: Hopping, Geo. Storer. Debevoise-Anderson Co., New York. Booth No. 233. Pig iron, coke, nichrome, etc. tepresentatives attending: Nils Anderson, president; Paul Brooks, vice-president A. Rhodes, W. K. Callow. Decatur Milling Co., Decatur, Booth No. 209. Deister Concentrator Co., Fort Wayne, Booth No. 116. Mobile type Leahy foundry screen for preparation sand the foundry floor. Representatives attending: Don Weber, general manager; Rhune, chief engineer. Demmier Brothers, Kewanee, Booth Nos. 458 462. Detroit Electric Furnace Co., Detroit. Booth Nos. 451, 453. type LFA, Detroit electric furnace operation; also display castings and products Detroit elec- tric furnaces in the brass, bronze and gray iron in- dustries. Representatives attending: Edward Crosby, president and general manager; A. E. Rhoads, vice- Walt Products Co., Leola, Pa. Booth No. 191. Walt woodworking machines, and equipment. Representatives attending: Ross Stevens, sales and advertising executive; Brown and E. L. Duncan of Duncan-Brown Co., Inc., West- ville, Diamond Clamp Co., Richmond, ind. Booth No. 310. Diamond snap flasks, steel jackets, bands, core plates, bottom plates, core boxes, wedges, clamps and flask fittings. Representatives attending Gartside, treasurer and president; Kinley. Dietert, Harry W., Detroit. Booth No. 301. Foundry sand control machines, consisting machine, sand rammer, strength machine (Shear bond— complete for green and dry bond molding sand and cores); moisture indicator, water meters, oven, balance, laboratory Simpson mixer. Representatives attending: Dietert, Arthur Nearon. Joseph Dixon Crucible Co., Jersey City, Booth No. 270. Eastern Clay Products, Inc., Buffalo. Booth No. 284. Samples Revivo bond, clay binder. Representatives attending: Cleland, vice-president; Schure- Cleland. (Continued page 1226) The Iron Age, May % | q Recent Installations Cupola-Charging Machine Takes Charge from Yard CUPOLA-CHARGING the Chisholm-Moore Mfg. Cleveland, for the Builders’ Iron Foundry, Providence, operates monorail and 8-hr. day. handles the charge from the make-up scales the ground into the Coke and limestone are handled separately from the pig iron and scrap. The yard picture shows buckets metal passing across the scale gravity conveyor. The charger picks them this point and deposits the material the center line the cupola, shown the other illustration. One man operates the c