The Iron Age 1913-11-27: Vol 92 Iss 22

Established 1855 New York, November 27, 1913 | HE TRON AGE Vol. 92: No. 22 Commercial Plant for Heat Treating Steel Increased Use of Heat Treated Metal Creating a New Industrial Field—Shop Equipment of the W. S. Bidle automobile has been responsible for the rapid in- in the use of alloy steels, and the more general de for the heat treatment of all kinds of steel. The wonderful results obtained in automobile construc- where a maximum of strength and toughness with , ficial influence upon many other industries. Manufac in other lines, noting what had been accomplished in automobiles, began applying the lesson to their own ss with the result that to-day many are using ~heat- treated alloy steels, or are having their same old carbon steels heat treated to bring out the properties previously remaining latent. The advent of high-speed steel with its capability to remove large quantities of material in a given time made t necessary for machine tool manufacturers to redesign ~— ~ ional aA Se etal eee ee ws - Te tha Ae eel ees ercial Heat Treating Plant of W. S. Bidle Company, Cleveland—Water and Oil Quenching Company, Cleveland their machines to meet the possibilities of the new steel In many cases, on account of limited s e, it is not pos sible merely to increase the size of certain parts (to meet the added strains) and use the same material as formerly For this manufacturers have adopted alloy steels, or for certain parts have found that a higher carbon steel than formerly used, properly. heat treated, would give them the necessary combination of strength and toughness Heat treating steels consists of course in heating and cooling in varying sequence to obtain from any piece its maximum efficiency for any given ust The size and shape of the piece; the subsequent ma chining operations, if any are required; the nature of th strains and shocks to which it will be subjected in service all exert a direct influence upon the treatment. Heat treatments must be selected with reference to what is Tempering Furnaces, Wooden Cooling Trough and Blower Equipment in the Background 1203 Tanks in the Foreground. Lead and Oij 1204 THE IRON AGE November 27, commercial. With pieces entering into th nstruction mewhat and primarily to relieve any strain of certain automobiles selling hig ( enching of operations to drain the la from a c rtain steel may be rrante lasst machinery such an expense may I fewe operations must suffi Small samples tes labor atory show the ritical change t ake I temperatures and theoretically thes« ( ( to be considered, it as large | the same way as small ones, in practic¢ s per ire modified by judgment and experier ynditions \ piece of steel of the best quality improperly he treated may not serve the purpose t as well as one of an inferior quality properly heat treat To obtain results a knowledge of the proper treatment of course paramount, the necessary equip ment mu at hand to carry out with the least error th ( nt selected, and as not uncommonly emphasized, eternal vigilance in the shop must be exercised The case carbonizing of steel has en give 1 great Large Heat Treating Furnaces and Oil amount of study and is fast being reduced to a science The process as employed not so many ye ago consisted of packing the parts in boxes, the used not being given much thought, heating for a certain length of time to the temperature of the furnace being judged entirely by the eye of the operator, and then dumping the contents of the water. In the light of modern kn this cedure is recognized as being very crude and not produc- tive of good results. The core of the pieces hardened in this manner would be coarsely crystalline, possessing but little strength and no toughness, the cass being quenched at too ars compound give the required depth of case, b xes into wwledge pro on account of high a temperature would be in the sameé condition as a piece of tool steel that had been badly overheated. Since the heat treatment of steel has become. thor oughly understood, it is recognized that to procure satis factory results it is necessary to heat treat the carbonized Pieces, first to put the low carbon core in a fine and tough condition since in the casing operation it has be come coarsely crystalline, second to refine the high carbon third—although not all pieces—to re- heat, preferably in an oil bath, to draw the temper of the case, necessary in Quenching arbonizing compounds that are reliable a: ind which will give uniformity to the cass had from several concerns. Case carbonizin eld for which it is pre-eminently suited, but proved a delusion as a substitute for crucible ste manufacturers of tool steel willingly spe: good material, their workman put many iys of machine work upon it before it is ready é rdener, and then the final operations of hard and tempering handled in a slipshod manner use in these connections the known melting art ters for must hecked - by temperatur metals or salts, or by comparison with a caret indard. Cold ends must be kept at nearly stant temperatures, or corrections made from the re pyrometer to allow for such variations. 7 Ke t St ings of the means that some one of ability or experience must btained to look after the pyrometers. Tanks of the W. S. Bidle Company, Cleveland There are many concerns in this country which main tain expensive laboratories and are constantly exper! their product. There are others, scale of operation does not warrant the necessary to install a complete equipment and an expert force to handle it. To supply this W. S. Bidle Company has recently completed ated at 1411 East Forty-fifth street, Cleveland commercial heat treating, case carbonizing and the hardening, tempering and annealing of tool steels. The Bidle plant occupies a structural steel frame build ing with steel roof trusses 55 x 60 ft. The west and sout! side walls are of brick and the other two sides are c with corrugated iron, this construction being p! vided with the view of extending the building 4o ft the east and later doubling the enlarged plant by anoth section on the north side, making the plant 100 x 110 Steel supporting columns were placed along the nort! wall. When the plant is enlarged to its contemplated s! these columns will be in the middle of the building. Wi dows were provided to admit only a moderate amount light to the heat-treating part of the plant and the ft located on the side having the least light menting to improve owever, whose ‘ xpense maintain held the a shop lo devoted t ere d naces are ber 27, 1913 lieved that more satisfactory results could be ob- y the absence of an abundance of light, as this the furnace attendant to rely to some extent on to judge by comparing the color of the metal eat treated with the end of the tube in determining or not the metal under treatment has been up to the temperature che pyiometer indicates al lighting is provided iscandescent lights, the of which are of 150 watts. furnace equipment consists of one single opening double opening underfired gas furnaces of the two small furnaces designed particu- r heating carbon and high-speed tool steel, two and an oil-tempering furnace. The two used for hardening and heat One has a heating chamber 36 in. wide, 8&4 in. 18 in. in hight. The other is 27 in. wide, 48 ep and 19 in. in hight. The doors are counter- | as usual with chain and sheave wheels to insure operation. An ]I-beam trolley and chain hoist is for charging the large furnace with the heavier and the case hardening boxes. larger of the two small furnaces is used both for treating and for heating tool steel. This has a chamber, the upper being 24 in. wide, 24 in. § in. high, used for pre-heating. The lower chamber 24x12 in. The other small furnace has a chamber wide, 18 in. deep and 11 in. high, and is used for ng carbon steel. This furnace has a small chamber ne side designed for high-speed steel. High-speed | is heated slowly up to a temperature of about 1700 in the larger chamber and then is heated rapidly in the small chamber up to about 22co deg. The oil-temper- furnace has a basket 15x 2I x12 in. in dimension The two lead furnaces have iron crucibles 12 in. in diam- eter and 12 in. deep. One of these will be equipped with a cover so that it can be used for cyaniding small articles. \ll of the furnaces are the Frankfort type, built by the Strong, Carlisle & Hammond Company, Cleveland. Air blast is supplied by a Roots’ positive pressure blower with a capacity of 1f00 cu. ft. of free air per min. driven by 1 25-hp. gas engine. The equipment includes pyrometers furnished by the Reighlee Electric Company, Cleveland. A switchboard in e shop allows connection being made with any of the rnaces. In the office there is a indicating id recording instrument, with which the temperature of furnace can be taken or a record can be made of the erature of any two furnaces. Especially designed equipment has heen installed for nching purposes. Located so that it is easily accessible the two large furnaces is an oil-quenching tank used vertical qvenching in connection with those furnaces. is a round steel tank 36 in. in diameter and 10 ft. being set down in the ground so that the top is 2 ft. above the floor level. The oil is circulated a centrifugal pump operated at a speed that will ly 120 gal. of oil per min. to the quenching tank. oil is discharged at the bottom of the tank and flows gravity to an overflow tank from which it is pumped cooling through 240 ft. of 1%-in. pipe in coils 1 in a long wooden water tank to which fresh water pplied from the city mains. The overflow from the hing tank is drawn off at the top of the tank at ints 90 deg. apart, so that an even overflow is pro- from all sides of the tank. Suspended by four in the oil quenching tank is a circular plate 4 in. ickness. This’ makes a false bottom which can be or lowered to provide the desired depth for the that are being quenched. This plate is filled with holes to allow the free circulation of oil from the m to the top of the tank. connection with the furnace with the pre-heating and the two lead furnaces there is an oil-quenching and a water-quenching tank, each 30 in. in diameter 36 in. deep. The arrangement of these smaller tanks milar to that of the larger one described above. The ly for the smaller oil tank is circulaicd with a centrif- pump driven at a speed to furnish 30 gal. per min. oil is passed for cooling through 96 ft. of t-in. | pipe in the same water tank, in which the oil used he larger tank is cooled. The plant equipment includes a 100,000-Ib. testing ma- ; reel ne type, rur laces turnaces are case deep commined THE IRON AGE t ~ ws" chine Machine equipment fot turnished by the Riehle Brothers Testing Company, Philadelphia, and the necessary lishing samples for etching and for examining under the microscope \t the head of the company as president is W. > Bidle, who is also treasurer. R. J, Frackelton is vice president and F. C. Tegtmeier is secretary A New Crank-Driven Planing Machine of the recent products of the Newton Machine [ool Works, Inc., Philadelphia, Pa., is a high-duty planing machine with crank drive \ notable feature of the ma chine is the which Une incorporation of a gear speed box, provides a 5 to I range in pulley drive. If, operate the machine by an electric motor, easily done, as the pad for the reception of the motor is an integral part utting speeds, by ing a single he wever, it 1S desired t this can be of the machine Another interesting feature about th« machine is that all the stresses are opposed. For exampk when a cut is being taken the tendency is for the work to : te . [ \ Recently Developed Planing Machine Equipped with a Crank Drive and a 5 to 1 Geared Speed Box push the tool and indirectly the cross rail closer to the up right. The work table is of heavy construction with square locked bearings on the base, which is the builder’s standard type of construction. Side adjustment and wear are compensated for by adjustable screws. The table is driven by a crank, as the name indicates, the motion being controlled through a Whitworth motion, quick return to the stroke. The cross rail has a hand vertical adjustment. and the tool apron is fitted to a clapper box which can be ad justed to provide the necessary clearance for the tools on the return stroke. The clapper box is mounted on a slide thus providing horizontal, vertical and angular feeds and a hand adjustment when desired The following table gives th: specifications of the machine box which gives a principal dimensions and Maximum width of work handled 24 Maximum hight of work Sand! 4 Width of work table, in.. 20 Length of work table, in. 40 Maximum length of stroke, in 24 Net weight of machines, Ib 8 S00 When the machines are to be used for finishing locomo tive shoes and wedges, they are provided with a turret tool post and angular fixtures to give an increass utput The Pont-a-Mousson Blast Furnaces and Foundries. Meurthe-et-Moselle district, France, are erectine 80 coke ovens of the Still with these ovens there is also being erected a direct ammonium sulphate plant of the Still direct type for which a United States patent has recently been granted, and a benzol re covery and rectification plant. Bagley, Mills & Co., } Church street, New York, are the representatives for the Carl Still system processes in this country. regenerative type In connection 1206 A 26-In. Cross Slide Flat Turret Lathe A Manufacturing Machine Tool with an Interesting Arrangement of Feed Stops A cross slide flat turret lathe for handling work up to 1 a maximum length of 26 in. and not more than 2% in. in diameter, has been brought out by the Modern Machine Tool Company, 4657 Spring Grove avenue, Cincinnati, Ohio. This tool has a somewhat novel arrangement of stops for the transverse and longitudinal feeds to the cross slide, and a patent type of belt shifter is used. The headstock and bed are cast in one piece, and a three point bearing is used, this type of construction being relied upon to prevent springing of the bed when the lathe is set on an uneven floor. Friction gears are pro- vided for the headstock, the gears being located in the bed under the spindle. The carriage is gibbed to the outer edge of the bed and has a bearing on the V’s throughout its entire length. The turret is a circular plate 18 in. in diameter, the lock bolt being located close to the edge of the turret. The index is of large diameter, which is cal culated to insure operation when turret. back ease of indexing the The cross slide has 195 sq. in. of bearing surface on th: carriage and the long, narrow dovetail guide is relied upon to prevent cramping. There is a full length taper gib to take up wear and a parallel gib on the rear for holding the slide down. The center position is automatically located by a taper locking bolt on the head end of the carriage, which may be disengaged when the cross feed is used. slide has 7 in. of travel slide in either direction. The cross that stop the The stops, which may be used for one tool or in combination for any series of tools, are engaged by a set of plungers located at the front of the carriage, all of which are operated from any location of the slide. The longitudinal stops are located centrally between the V’s of the bed and number 12 in all and has 10 stops two for each position A Recently THE IRON AGE November 27, 1913 of the tool. By rotating the turret, the longitudinal s are automatically registered for the proper tool pos in use at the time, that is, two stops becorae avail: either one of which may be used by turning the small crank shown at the left side of the carriage a qua of a revolution. The turret is indexed and the stops active, regardless of the position of the cross slide. this way, it is pointed out, the necessity of returning tools and cross slide to the central position to index turret is done away with. There are 10 transverse or cross stops, which are veniently located on the carriage. These can be used the will of the operator, and the entire set has one position, or can be used in any combination of the for any or all of the six turret tool positions. They not indexed or registered by the rotation of the turret but are independent of the turret rotation, and may engaged or disengaged, regardless of the position of th cross slide. The detail designated as the section on C | in the accompanying line drawing shows the mechanisn employed in manipulating the stops, and also the means of locating the cross slide and the turret in the cent: position. This is accomplished by a hardened tool steel plunger, having a tapered end which seats itself in tapered bush located in the saddle or carriage. The plunger is carried in the cross slide and is spring actuated, thus removing any possibility of failure to locate the turret centrally. When the cross slide is being used the handle at the left is turned down, which in turn moves the small eccentri: shown dotted against the lever that engages with the plunger. This action withdraws the plunger from the : locating bush and after the facing or turning required is completed, the handle is raised, which causes the plunger to become active, and when the slide has reached approxi mately the central point the plunger will seat itself in the locating bush. It will be noticed that the cross feed power control is governed by a single lever, the stopping, starting and reversing being independent of the longitudinal feed When the cross feed lever is in the neutral position ther Developed 24x26 In. Cross Slide Flat Turret Lathe . ember 27, 1913 THE IRON AGE 1207 heavy gears to turn when hand feed is employed, it is pointed out subjects the cross feed screw to due to the moving of a heavy gear train. All of the and parts are carbonized and hardened to insure ac y. The micrometer adjustment for the cross slid Section A-A Details of the Longitudinal and Transverse Stop cated on the periphery of the cross feed screw hand eel and the pointer is adjustable at the will of the rator. The following table gives the principal dimensions and cifications of the lathe: Swing over V’s, im......... ‘ ednewveaeea ae Swing oWeF Carriage, iM... .....0s cc sees aan a eeual 16 Swing over turret, in......... - wa hans a ueee 6 LTOVEE- OF, GURU Bic aeindees. cocnwedcs rind <n be dee 26 Travel of cross slide, in........ = ahi beke Veda eee 7 Diameter of hole in spindle, in..... ecBerehedmedes 2% Minignums GOOG0, ff. $. Wriccccsscecseecssccscacccsees 18 Maximum speed, r. p. M........e000:: nes dawen . 350 Minimum feed per revolution of the spindle, in....... 0.005 Maximum feed per revolution of the spindle, in...... 0.085 Maximum speed of countershaft, r. p. m............. 225 Minimum speed of countershaft, r. p. m.............. 112 Floor space required, ft......-..... hiabier ees caadey 4x11 Net QU Bess haakesdeesctcnrsscadtsocesivensen 6,150 Crated shipping welgt, ID... ..ccccesccccccaseces . 6,750 Boxed shipping weight, Ib............... ivencea ee (he belt shifter furnished with the lathe is operated handwheel that is so timed that one turn of the dwheel shifts the belt from one step to the next. [he Carbo Steel Post Company, with factory at Chi- 20 Heights, Ill., announces that, beginning December 1, main sales office will be located in the Rand-McNally lding, Chicago. American lron, Steel and Heavy Hardware Association The semi-annual meeting of the executive committee of the American Iron, Steel and Heavy Hardware Associa- tion was held in the La Salle Hotel in Chicago November 11 and 12 Several matters of in terest to the trade were discussed, and the sit uation in the heavy hardware business was very thoroughly gone over. On the whole the feeling with regard to the business conditions was good. One of the chief duties before the com- mittee was the appoint- ment of a permanent secretary to succeed E. R. Yarnelle, who re- signed last June. The committee selected for this position John G Purdie, who had been associated with Mr. Yarnelle during his connection with the association. His office is in the Marbridge Building, Broadway and Thirty-fourth street, New York. The date for the next an nual convention, to be held in Cleveland, Ohio, was fixed for May 26 to 28, tory. The Hotel Hollenden was selected as headquar- ters. This session of two days, which takes the place of a semi-an- nual convention of the membership, with mem- bers of the executive committee representing what is practically a district, is stated to have been one of the most profitable and in- teresting gatherings the association had and Mechanism Employed will, without doubt, re- ‘ sult in real lasting good, not only to the members of the association bvt to the heavy hardware business generally. New Prenal Steel Plants Recent iron and steel developments in France as given by the London Times are as follows: The Société des Longwy is installing the first of four 24-ton converters and the two new 25-ton open-hearth fur- naces lately put in service are regularly employed. ‘The new 350-ton mixer is completed, and one of four 60-ton oscillating furnaces is being rapidly pushed to completion. A second blooming and rolling mill for thick plates is being erected. A 6000-hp electric power plant, supplied with gas from the blast furnaces, will be finished by the end of the year. The new blast furnace of the Usines Metallurgiques de la Basse Loire at Trignac is working regularly, and oper- ations were recently started with the new steel works de- signed for a yearly output of 80,000 tons. Six 2100-hp gas engines have recently been installed and work is progress- ing on a new rolling plant, of which the electrically driven blooming mill is already in operation. The new steel works of the Aciérie Arbel at Berce Gayant, Douai, has started its 30-ton open-hearth furnace, and a second one is soon to be put in service rau sa Ay neg, ee ds <F ny ip ae 1208 THE IRON AGE November 27, U. S. Metal Products Company’s Affairs 1 +h, \1 ot \ joint meeting of the directors of the U. 5S. Metal Products Company, College Point, Long Island, N. Y., and the Art Metal Construction Company, Jamestown, N. was held November 17 and adjourned for a further session that evening. Following this meeting a statement, issued by the U. S. Metal Products Company, said that a number of the large note creditors had agreed a six months’ ex tension of their loans. Also that with one exception there would be no difficulty in renewing the present note indebt edness of the company until it was permanently finan ed. Presumably the one exception was the Chase National Bank, the holder of a note for $75,00 It was also announced that a syndicate had bet rganized to purchase from the U. S. Metal Products Company for cash certain of its slow assets that are not ed in connection with the business, the offer being ntingent upo! ut factory adjustment notes and t Officials of the company, together with A. B. Turner, oi lurner, Tucker & Co., were appointed a committee to ad just the company affair The plant continues in oper ation, \ further development this adjourned session, tt stated, resulted in the Art M etal ( ru (ompany relinquishing whatever interest it had in the U. S. Metal Products Company. It may be recalled that last summe: the Art Metal Construction Company made an offer exchange one share of its common st for one and half shares of the | S. Metal Product mon stock It is underst further that the tional Steel & Bronze Company Boston rmed | holding company, to take over the common stock of th U. S. Metal Products Compar n it ol a little less than $4,000,000 wort! mmon stock of th U. S. Metal Products Company out of a total outstandi issue of $5, 00,000 Clayton E. Bailey, who has bee he f the U.S Metal Products Company since September 1, has resigned as president and also as director, and hereafter will devote his entire attention to the busines the Art Metal Con- struction Company f which he is presi New Engine Lathe with 11-In. Swing \ recent addition to the large 1 er of machine tools built in Worcester, Mass., is an I1-in. engine lathe, designed for general machine shop and manufacturing purposes which has been placed on the market by the Worcester Lathe Company, of which Charles E. Thwing is the pro prietor. While following the general practice in the design View Showing the Arrangement of the Gear Box and the Methoc Changing to a New Series of Feeds and Thre ot machines of its « lass, it possesses seve ral interesting features which tend to convenient operation and a com prehensive range of usefulness The drive is from a four-stey pulley, with single back gears, the range of speeds being in approximately geometrical progression he hammered crucible spindle runs in cast-iron ring oiling bearings and has a collet with a No. 4 Morse taper. The tailstock is of the cut-away type, with a long bearing on the bed, and has an adijust- ent for turning tapers. The bolt and a shoe fa it he bed, the bearing being upon one V and on surface Che tailstock spindle is operated by a handw ind is clamped to the barrel by a plug. The carriage has a long bearing on the high fro: nd a large surface on the rear of the bed, and is back and front, with a binder at the back that used when the cross feed is engaged. The tool post the ring and wedge type, and the compound tool bloc! graduated in degrees, being easily set by loosening a and retightening. It can be quickly removed when ] ( esired to use a plain tor | block in its place. The di Al i 1 ‘ e cross feed screw is graduated in thousandths o Che apron as can be seen from one of the accom ng engravings is of the worm-driven type with a st n a friction of the flat disk pattern. T! nges of screw pitch and feed are obtained in the lIlinged Cover t the Thread Cutting Gear gE box, a sliding gear being employed. To secure any other hanges the bushing which binds the gear sweep is loosened by a bolt, the hinged cover of the thread cutting gear is lifted and the link that keeps the gear in place the upper gear box shaft is pulled. The gear is remove and replaced with another that enables the desired pitch to be secured lhe countershift is of the flat disk friction type wit! boxes having ring oilers. The pulleys are furnished with self-oiling wicks. Saloons and the “ Safety First ’’ Campaign Thomas D. West, Cleveland, chairman of the comn tee on safety appointed at the convention of the Am ican Foundrymen’s Association at Chicago last month, a! nounces that one of its objects will be to reduce the num! f saloons located in close proximity to manufacturi stablishments. Mr. West recently addressed a letter hehalf of his committee to the commissioners having hand the granting of licenses to saloons in Cleveland. called attention to the increased liability to accident b ause of workmen visiting saloons at the noon hour or 1 working hours, and asked that the commissioners withhold licenses from saloons located close to shops, especiall) plants in which the work is of a hazardous character Mr. West added that this question had come up for di cussion at the American Foundrymen’s Association cot ention at Chicago on October 16, and that emphasis was mber 27, 1913 resulting from the maintenance of saloons factories, particularly those whose work s considerable hazard and those in which men are ed at night. Mr. West’s committee when completed ve one member from each State. ng saloons to as great a distance the harm / joo;rs of The question of as possible from il plants will be given prominence in its _—ore Safety First.” Mr. West has also | mmittee’s work to the attention of il Founders’ Association and has asked the co- n of that organization rought this phas« othcers the A New Metallographic Laboratory ymplete metallographic outfit has been installed fice of the naval inspector of engineering material ester, Pa. It consists of one of the most modert scopes fitted with a camera for tdking photomict1 s and with an electric illuminator. All the necessary hernalia for specimens of steel for ol also provided. While this office is under th liate jurisdiction of the naval inspector located at ivale Steel Works, ng after the inspection of castings and irnished the Gi t. The preparing n are Philadelphia, it is devoted chiefly other mate yvernment in or near the Chester are such that photomicro furnished to any department of the Navy it district. The work is done by K. D. Williams, the n inspector of that offic The object of this new ture of the Government is to have at hand a ready f settling ther matters that arise, without a more or less s reference of the matter to Washinet is understood that arrangements have been mad« arrangements S Can be certain questions as to heat treatment orate in the new specifications for forgings for the the requirement of a photomicrograph of a specimen teel from each end of a crank shaft, to determine her the heat treatment has been proper, no matter if physical requirements of the steel have been met. In this procedure, it is said, is already being carried in the examination of certain forgings Titanium Rails Compared with Non-Titanium lhe third bulletin on steel rails has been issued by thx im Alloy Mfg. Company. The two previous bulk which have been noticed in these columns, wer ratory to No. 3, which gives a complete summary of emical and physical results of seven sets of standard ter ductility for the treated rails, titanium-treated open-hearth rails which were choset cially in the heads, than for the eated. 2. Impact tests show an furnished either by the railroad the manufacturer Some of the lusions derived from the tests are stated in the bulletin: 1. The ten ests show on an average mucl es rage in shock resistance of 50 per | for the treated over the un ted, in the head, web and flange. | ndurance tests on the White- that the treated her machine show fractured are much less easily itigue or by constantly sses below the elastic limit 4 mical analyses, hardness tests and Landgraf-Turner rance tests (above the elastic limit) all show greater rmity in the treated than in the untreated steel, indi ng less segregation with its attendant evils. The bulle- is illustrated with excellent sulphur prints and photo- graphs. The letails being given of chemical analyses and the vart- hysical tests. repeated tabular résumé of the tests is extensive, The Lukens Iron & Steel Company, Coatesville, Pa., nstalling a new water supply system, which will make available daily. It will also give an even ssure in all parts of the mill, which was not possible ler the old gravity system. The water is obtained from randywine Creek, which runs through the property, and by three centrifugal pumps, oper 00.000 gal. pressure is obtained ng through an elevated 50,000 gal. tank THE IRON AGE ‘ay A New 6-Ft. Radial Drilling Machine The Reed-Prentice Company, Worcester, Mass., has rought out an improved type known as the 6-ft. heavy pattern radial drilling machine lt is of massive construc tion at are incased in guards itegral with th ha g en give special consid eration The counterbalance weight 1s ns ed so that it not drop if the should K, a ty st vS alt pl yer re I t Sa i Lhe I . tar in « lire n, thus : ng iwains re ikag The spec ox is locat i ear e post t ‘ , s bolted rigid] ; m an integral t speeds at provid ad, ny ne \ in tained while the machin perating t explai even with the drill taking a cut, wit t shock to t mechanism The clutcl ire ar t s im ssible to ngagt iny \ 1 t { itios { le ers having r nm tne era }] 1 re ul hine ma e start The pper tion he pos S : er sth the driv ng al n Sade elev iting ¢ Ss. tne tter eing engaged by the tical 1 shown at t f the post he wn ed is twi that of the p te und the if 5 nted in large bearing, ving ill thru lla it the lower end t facilitate sw ring In onstru ig ( cnt all 1 d ne I d d tappin g r « ndle count Llance the levers and ther parts are all completely assembled as a unit in the sliding head before it is placed on the arm Before this is done, however, the horizontal arm shaft located in the desired position by gs and xtures and is drilled and bolted in position. In this way it is pointed out that per- fect alignment of the shaft and the rrect meshing of the driving bevel gears near the olumn art ed \ two-speed mechanism in the head provides slow lighter W ork and high ones |! powerful speeds for heavy pieces This mechanisn mn conjunction with the four changes in the speed box, provides eight speeds in all The tapping attachment is located so as to be available at all times, the lever being placed at the right of the head lesigen is the use of the hel One of the features of the « ical cut spur gears, employed partly to reduce noise to a minimum. The machines are built either with ball bearings throughout or with bronze bushings, the former arrange ment being the one recommended, as the power consump tion is cut almost in half A colorimetri method for the letermination of 1 | y C. R. MeC abe, Corporation, Lima, O} in the Septem- Journal of Industrial and Engineering titanium in iron and steel is publish Lima Locomotive ber issue of the hemistry. « dlliicsniines hae ntainhinccciial aiid. te? * 4 ‘ + 4 ie a me ™ nt 2 oS Automatic Furnace Hoists at Monessen, Pa. Installation Company Whereby the Large Bell Is Dumped with Desired Numbers of The two blast furnaces of the Pitts sh Ste | ypent and pany blown in this summer at Monessen, Fa., hargeé ene oles by bell hoists which are automatically controlled electrically When by the action of the main skip hoists. Not only the rounds opening and closing of the lls in the f the blast actual operating furnace thus remo of the operator, but the large bell may be n rezularly for desired numbers ot » loads. For example any ¢ these it may be desirable to deliver the furnace for every two, thre or four skip loads, and once the devices are set, the machinery will Sa continue to repeat its cycles, oper ating the large bell after the small bell has dumped on the large bel the contents of the requisite num if ber of skip loads. The details of the furnace hoists, which include a special skip hoist for removing dust from the coke screens, wer: worked out by the Otis Elevator Company, which installed the ap — paratus, but the new plant of thi Pittsburgh Steel Company in — 3 entirety was built under the di r rection of the Garrett-Cromwell Engineering Company, Cleveland The operation of the automati } charging of each blast furnace i 2 briefly as follows: When a skit - load of material is started up the bottom of the incline, the cir cuit for the small or upper bell : hoist is automatically made, and the small bell opens and closes Di Si once, dumping the preceding load nd 5 on the large or lower bell. Each operation of the small bell is electrically recorded, as it throug! may be termed, and after a predetermined number of ski; shown ncentric loads have been delivered by the skip into the furnace top marked off into and passed bv the small bell, the large bell automatically ndicate the =) i poids D | = = Ds try —— | a Pp | | Toe =a >} ae QD) \ i 1 _ Y - “SEES * iJ / » J Fig. 1—The Ratchet Magnet which is Actuated Every Tin e Small Blast | ace | the Large Bell According he Nun Skip | De ved from the carelessness o at Works of fference two, three Skip closed, allowing the fall into the furnace equences an angle of 30 deg. equal divisions, successive Into the Furnace at Pittsburgh Steel Loads accumulated round the plant was first designed, it was believed of three and six loads would be satisfactory conditions four or six loads may be desirable and the : operate matic feature may now be set by the furnace manage have shown that round of operation. Means are {| vided whereby the manager n at any time insert an extra | into any round, and he may wor the bells independently of the a tomatic device, by unlocking tl small iron boxes shown in Fig and pressing the proper The circuits of the bell hoists terlock, to prevent both bells fr being in operation simultaneous! To give an idea how the large bell is operated under the contr of the small bell, the drawings a so-called ratchet magnet given in Fig. 1 and a diagram t elucidate the device for changing the number of skip loads per cycl in Fiz. 2. The ratchet magnet a it appears in real life is indicate in the upper left of Fig. 3, whicl is a view of the controller board for the two bells of one blast fur nace The operation of the small bell energizes the magnet coil of the ratchet mechanism, indicated b the coil in Fig. 2 and the solenoid lifting the ratchet, turns a specia form of commutator, so to speak In Fig. 2 this commutator is dotted circles. These are or 30 deg. each, and which the commutator butt two positions i j Closes the Circuit Controlling One Time and whicl mber 27, 1913 vith every operation of the small bell. The small in the diagram represent brushes. The one in the st position forms one end of the circuit which the operation of the large bell and is always in with the commutator The others have been so that with a proper arrangement of switches the operation in different cycles may be obtained. ng arms of the commutator can be swept by the located against the larger circle, while the shorter ie in contact with the brushes touching the smaller [he small rectangle toward one end of one of the 1 irms is to indicate that this arm end bridges over cts on the smaller circle and never comes in con- the brushes located on this circle, though this ue of the other long arm. From the brushes may 1 the wiring leading to clips such as are employed fe switches. Instead of being of a usual form, a pair of knives are mounted as indicated in ram with a handle parallel to and between them up of four clips so connected provides for the »f 2, that is, for one operation of the large bell dumpings of the small bell and therefore of two ids; another group is for the 3 sequence; another { sequence and the fourth for the 6 sequence ial form of the knife mounting provides that only tence can be attempted at the one time, a conditior might not be so easy to insure with the possibility groups of clips being active at the same time. By a model of the diagram with the commutator cut card board separately, the card board commutator rotated by steps of 30 deg. each and the periodic f the circuit according to any sequence noted ious that with study the automatic feature might ged for other cycles, were they desired. middle drawing of Fig. 1 shows how the ratchet erated every time the magnet above it is energized the drawing at the right is an elevation with the removed to show the commutator and the practical and mounting of the brushes. The front-to-rear at the left gives an idea of the practical form of mutator. The groups of switch clips are now inted on the controller board, Fig. 3, though not in tion when the photograph was taken. the group of switches shown in Fig. 4 are two pairs ish button switches, and all switches incidentally are irily under lock and key. One pair of push buttons ( ntroller for Operating Both Bells One Furnace the small bell and the other for the large bell. ng the upper button momentarily causes the bell to once and the lower button must be pushed before such emergency operation is possible. Another the switches shown in Fig. 4 is the extra load shown in the diagram Fig. 2. This is to allow for tra skip load without destroying the automatic tween the bells. After the third or the sixth as dumped and before the empty skip is started the switch is opened and after the extra load has lumped and before the empty skip is started down the switch is closed. It should be added that in ng from one sequence to another, which requires the insertion of the switch knives in the proper lips, the commutator must be turned to the posi- rresponding to that taken in Fig. 2, a marker being ed to indicate when it is in the proper position main hoists for serving the furnaces are of the } nS ‘ ’ ; i THE IRON AGE i2ut double drum type operating balanced skips on an angle ot 63 deg. from the horizontal. Each skip is designed t Carry 17,500 lb. of ore, at a speed of 225 ft. per min., this being the rated capacity of the hoists The hoisting machines are provided with drums 72 in. in diameter and the drums are driven by an internal gear of rolled steel with cut teeth, which is bolted to the drum flange, thus relieving the drumshaft of driving strain [he drum gear meshes with a pinion of forged ste ‘gral with its shaft. On this pinion shaft is mounted ast steel intermediate gear, which is in turn driven by a rged steel pinion on the motor shaft. The motor is of the direct-current type with steel frame, wound for 220 Its, and is of the Otis Elevator Company's own mak ————— = i Fig P Bu Box M S [he service brake is of the steel band type. applied by spring pressure, and released by a powerful electro-magnet the brake wheel being mounted on the motor shaft In addition, an emergency drum br provided mounted on the outside of the nternal rut gear This brake is applied either in case of excessive eed, or man ually by the hoist operator, by the release of weight which in falling actuates a cam and applies the brake The overspeed feature consists of a governor driven by the hoist, set to trip the weight at any predetermined in crease over the normal hoisting speed. Al tected by heavy guards For the control of the hoists electro magnetic switches or contactors, capable of breaking currents of 1200 amperes, are employed. The automatic slowdown and stopping of the hoists is obtained by a heavy automatic switch mounted on the outboard drum stand, and driven, through protected gears, by the main drum shaft [he standard form of master switch is used by the operator, shown in Fig. 4 The machines for « pening the bells consist of Otis standard duplex worm and gear reductions driving forged steel throw cranks through heavy internal spur gears, which further reduce the speed of the operation. The machines are driven by Otis steel frame interpole motors of 35 hp capacity, at 800 r.p.m. and heavy solenoid brakes are pro vided to accomplish quick stopping when the bells close Ont revolution of the throw crank opens and closes the bell in the furnace top. The bells are counterweighted, in order to secure favorable operating conditions In addition to the foregoing, which constitutes the regu lar furnace equipment, a special skip hoist is installed at each furnace to remove the dust from the coke screens These hoists are of the single skip uncounter balanced type, and have the drums 6 ft. apart. This is du to the peculiar lead of the ropes, which, two in number, run from a cross bar on the bucket, then to sheaves at the top of the incline, and back to the drums. The machines, which are identical with those of the bell hoists, are located inside a shelter, and the drumshafts are carried through the wall, being supported by a wall bearing. The incline is 55 deg from the horizontal, and the travel 68 ft.; the bucket weighs 2500 Ib. and the load of coke dust 4500 Ib. The control system is full automatic, the operator simply press ing a button to start the hoist; it then accelerates, runs at full speed until near the top, when it automatically slows down and stops, the skip bucket being in the dumping posi tion. After pausing for 5 sec. to allow the load to fall, the hoist automatically reverses. runs the empty bucket down and places it at rest in the loading position as stated A 10 1-2-In Vertical Shaping Machine Recent Pratt & Whitney Machine for Both Slotting and Horizontal Shaping A vertical shaping machine has been recently developed at the plant of the Pratt & Whitney Company, Hartford, Conn. The object has been to produce a machine that would not only be suitable for regular slotting machine work, but would also handle the line of work generally done on the horizontal shaping machine. To attain this end a number THE IRON AGE November 27, | through the cam D, which operates the oscillating ar the desired rate being obtained by adjusting the shaft the oscillating arm, The power is transmitted throug! crank G to the shaft H, and from there to the feed and ratchet, which are clearly shown in the engra The several power feeds are engaged through the s| pinions I, J and K, which are shown in the outward tion, where the power feed is disengaged. These pin are of such a form that they can easily be brought the inward position for engaging the power feed si; by hand. The knob L, which operates a clutch, cont of new features, not. generally found in a machine of the operation of the power feed and is pulled in or this type, have been embodied in its construction. Among according to the direction it is desired to feed. these may bee pointed out mentioned thein- - eee - , this mecha: creased flexibility of the work hold- ing mechanism, the use of a swiveling ram head and a ro tary table and the providing of an angular ad justment for the ram. While the machine possess- es sufficient pow er and _ stability to withstand severe. service in manufacturing work, it is’ point- ed out that at the same time it is a_ precision tool and can be relied upon as re- .gards accuracy for the more del icate operations. In meeting the operating re- quirements, it is pointed out that the means em ployed have been located and con- structed with a view to affording th« machinist every operating convenience. As will be noticed from the accompanying en- graving, the ro- tary table forms an important part . \ Rece Developed ertical Sl iping M of the machine Anguiar Adjustment ot the Ra construction. It is well mounted and the bearing surfaces, which are of large proportions, have taper gib adjustments to the proper relations between them. the fact that with this table it is possible t machine conca\e, convex or irregular surfaces. Another advantage which is claimed for this arrangement is that when working to a line, as in the manufacture of dies, the maintain “mphasis is laid upon the use of cutting tool always enters the work where the line is scratched. The diameter of the table is 24 in. and the longitudinal travel is 25 in., the transverse travel being 22 in. The work holding mechanism provided on this ma chine enables all internal operations to be performed a piece at one setting, and this applies to a on external work. punch, it single setting great extent In the case of an irregular shaped die is possible to finish the entire periphery at a Both hand and power feeds are provided, and the entire feed mechanism is self-contained in a compact unit attached to the saddle at the right of the machine. The trans verse, longitudinal and rotary feeds are controlled through the shaft A, the screw B, and the shaft C, respectively The power feed is transmitted to the feed mechanism and there gives a rapid tion, which place when ram is at the ex treme upper | it of its tra The tool, clear of the w at this point not subjected additional pres sure on the re turn strok When hand fe: is being em ployed, a cranl wrench is used the ends of th shafts _ being squared for this purpose. Mi crometer dials are provided to control the vari ous feeds, and the periphery of the rotary table is also graduated in degrees. The entire feed mechanism is in closed and_ the various screws are protectei! against chips The ral driving mech ism is operated by worm ing, and this exception similar in gener al design to that used on the com pany’s horizontal! type of machin The design is such as to counterbalance the ram, thus, it 1s pointed out, giving a free, easy running action. F spec gear- with th a Maximum Stroke of 10% In. The yper Left Corner changes are obtained by a four-step cone pulley is a quick return. It is possible to obtain an) desired length of stroke up to a maximum of 10% through the graduated dial M. The position of the may be changed by releasing the binder N and adjusting the screw through the shaft O. A friction clutch co! trolled through the lever P provides a means for starting and stopping the ram independently of the countershaft lhe maximum distance from the table to the under s of the ram-is 22 in. and from the table to the side of the ram bearing the distance is 12% in. The angular adjustment provided for the ram is broug out in the little insert cut. This adjustment is made pos sible by mounting the ram in an independent bearing, t! upper portion of which is pivoted on a trunnion that en ables the bearing, together with the ram, to be swung on a” angle, graduations in degrees being provided to indicat exactly the angle at which the ram is set. It is point out that this feature is advantageous on a great varic' f work as the necessary clearance can be obtained und ember 27, 1913 this machine a new type of tool post is used which ot project beyond the cutting edge of the tool, and ration it passes directly over the work without inter- [o accomplish this result, the tool is bound from k, the customary set screw having been eliminated. | post is carried in a clapper, thus enabling the tool the work on the return stroke, the same as in a ntal shaping or a planing machine. The manner inting the clapper is such that the force of the cut ulated to drive the clapper rigidly against the head. internal work is being done and exceptionally long are employed, means have been provided for binding lapper solid to the head. The ram head can be led to four different positions, which enables two or four sides of certain work to be planed at one setting, rrangement being relied upon to give absolute paral In planing the different sides of work, the rotary is clamped in position, two binders being provided his purpose. The ram head is then swiveled to the 1 position and either longitudinal or transvers: feed, depending upon the position of the ram head ved. In this way it is possible to use short tools irticularly on external work, where there is prac y no overha