The Iron Age 1913-08-28: Vol 92 Iss 9

THE IRON AGE Established 1855 New York, August 28, 1913 Vol. 92: No. 9 Crructural Steel Fabrication at Rankin, Pa. General Features and Equipment of the Newer Part of the Plant Near Pittsburgh of the McClintic-Marshall Construction Company A vis recently paid to the works at Rankin, Pa, being over 1& br Pitts f the McClintic-Marshall Construction pattern shop, 90 x mpan) n insight gained into the plant in general unusual structural shapes lil t line H the ment in particular. When it is mentioned common in theatré nstructior ther t the Rankin works include two shops, each with a_ ings of the plant include the power house, the ter pacity of 4000 tons of finished structural steel work for size engines in which g ves, ldings and other construction utilizing rolled requirements of the plant, and a1 Bterial, an idea fice building the scale of I I rations may I \M obtained. The ng : 0 main build- t as gs are each met for out 200 ft. : ‘ ployee s und ide, and nearly “ aie S a “ : : ompany officials bo ft. long, but . ' | fea) BBs The [he shops are together on the tres noteworthy for Tih Pr id acres of the " , which lies oss the Mon- bgahela = River om the Home ad Works of he Carnegie eel Company, here is a total 43 buildings, iluding storage heds. The first wilding was mected about their lofty inter- ior, and though the main shops are 200 ft. wide, there is only 1 single line of in terior columns extending down the center of the buildings at dis- tances of 90 ft. and too ft apart. There is an unusually gol and the sec- large amount of ad building was narrow gauge pompleted laté in tracking, of 2 ft 5, but ma- 6 “ thines have een ' ¥s nstalled from , the ime to time, and r me present ' rag bunt w rive rd s 920 it ome A the long 0 ft methods and fa it one et present ume g. 1—Multiple Plate Punch, 60% In. Wide Between Housings, with a Capacity fer Pu : s served by two The ma n 30 Holes 13/16 In. in Diameter Through In. Plates parallel crane peorage yard for ways, each of 70- - _ rial received from the rolling mills occupies t. span. On one of the craneways isa 20-ton crane and a 7% he bank he Monongahela River, and this plait ton crane, each with its own opérator, and on the parallel ater progresses through the shops which ex craneway is a 15-ton Morgan electric traveling crane, and end nally away from the river, so that at there is also a jib crane with air hoist The vered © tar_end it is fabricated ready for shipment. tion of the yard is provided with shears and other machine here ar ull 13 railroad sidings running through in a leanto, for rougl tting of various shapes he w me entering the finished ends of the \s regards material handling in the shops themselves Bhops ing away completed work. The conspicu- a large number of relatively small lifting and transport pas esides the two shops mentioned is a large ing hoists is prov ided, as is to be expected. They ar nding the full length of the shops and lying mentioned in some particular in the more detailed refer housing the bolt and. rivet making depart- ence to shop No. 2, the later of the two main buildings le and over 200 ft. long; the machine shop but in general there are numerous traveling hoists and for bridges, cast-iron pedestals for struc- cranes moving crosswise of the shop, and also pneumati machining work is done, this department hoists, ith, she capacity icreased hy steps toward the 6 ~ « »>vVvic rycr. Ce SINS 435 Mechanical and Civil Engineers, PITISBURGH, PA. THE IRON AGE I ced > : ig. 2—Some of the Punches in Shop No. 2, Showing Guide Tables Leading to the Punches and the Movable Sk ; farther end of the building, where the gradual assembling Fig. 2. This view shows at the left a rack : of the pieces gives greater weight to the parts handled multiple type, in the center a single punch, a: ; The arrangement provides for easily transporting cross right an angle multiple punch. wise of the shop the various pieces as they are sheared or Beyond the line of machines for a distance of » & . punched, depending on roller tables leading to the main are skids for taking the material after passing throug) machines and on the narow-gauge system of cars for trans the machines, and this total distance of 180 ft. from the porting the material longitudinally he receiving yard, receiving yard wall comprises what may be cal viewed from the covered portion and showing in the dis punching and shearing department. A transverse n ; tance at the left, the loading derrick for water shipment gauge track with turn-table connections to the long is shown’‘in Fig. 8. lines of the same tracking marks definitely the Shop No. 2 is 480 ft. long and 200 ft. wide, except at of the 300 ft. of the shop length given over to assem the receiving yard end, where it is over 65 ft. wider, for a riveting and other operations. distance of 18o it., forming a beam shop open with the The roll tables beyond the multiple punches are rigged shop proper. Here is done more particularly the punch- for spacing purposes. A view of one of the ing, shearing and coping of heavy beams. On the oppo- arrangements is given in Fig. 1, which also shows site side of the shop from the beam department is space _ the especially noteworthy machines of the shop, one for punching and shearing plates, and in a line across by the Long & Alstatter Company, having a capacity fo the shop, between the plate department at the one end and punching 30 holes 13/16 in. diameter through %-in. plate the beam shop at the other, this line about 90 ft. inside and being 6034 in. wide between the housings. The pilst : the wall at the storage yard, are the punching and shear- form of wheel used in connection with the spacing tables + ing machines for handling angles and the smaller channels’ and I-beams and nar- row plates. In the 90 ft. between the end wall and this line 7 of machines, the material, sheared if need be to de- sired length, is piled on __ skids, some of them movable and oth- ers stationary, all - of an I-beam top, a supported by . angle-iron legs of hi A-frame shape, , stiffened. Leading to the machines for feeding the material to them are guide tables or roll tables, and view of this de- partment showing three of the ma- chines is given in Fig. 3—Gantry Drills in the No. 2 Shop, Showing Also the Skids Resting in Slots in the Floor THE IRON AGE nd 5 ees 1 ) vi PTT » et) a eR give the leverage le to pull through the plate or pair of spanning three of the bays and movable transversely to the operator in two 2-ton chain blocks, all of these 62 ft ng an g ise may be, for the required distances across the shop, like the rest of the verhead transporting sometimes a wooden template marked off devices, as already stated. Ther ils ne stances being fixed under the traverse of this type of carrier spanning, howe I t ne ay ind the pilot wheel being turned to equipped with a 6%-ton air hoist Most of the trar pposite each successive position in- porting is done by single air lifts, about 40 in numb plate. Fingers or lugs indicated in the most of these of 7% tons capacity, but some of | t g ig. I may be fastended at the required hung from the bottom flanges of the roof beam O e spacing table and the punching of the’ the delivery side of the line of machines distances may also be expedited accu cranes, likewise travelling transversely a [Incidentally Fig. 1 shows at the left in each of one span or 18 ft he plate-punching machine and at the In the assembling department of shop drilled and reamed, as where punching is t all transporting arrangements in the punch the specifications under which the structural steel work g ring department are accommodated on the is purchased. Conspicuous features of this department wel ntal belie of the roof structure These are two parallel ways, where large members like plat 8 ft. apart on centers, and there are about’ girders may be drilled and reamed by means of traveling ed horizontal traveling beam hoists, some gantry cranes. Along each side wall of this department with a 5-ton chain block and the remainder with are the main pneumatic riveters, 100 lb. pressure air bein largely used About 50 ft side of each wal is the enter line ot one I the reaming gantr ways and t space between the riveting runway and the gantry runway is filled with skids where the material is either awaiting riveting or trans portation, as th case may be These skids are generally heavier than those foun in the punching and shearing d partment, having a rail fixed or top of the I-beam On these also are stationed the con plete girders fi the painting proc ess, for ex: ample ers in the No. 2 Shop, Showing the Hinged Arm, Carrying the Vertical Reaming Spindles and generally v re ” IO. cD AP tg are ae IRON AGE speaking, the completed toward one corner of + Standard-gauge railroad and readily served by Along both sides narrow-gauge transp the space betweet generally occupied in process of fabricatio1 Here als machinery which the McClintic-Marsha Company provided to take care of the unu volved in manufacturing the large mitering gates stalled in the locks of the Panama Canal One of the gantry runways does not run the full length of the building, but a part of the a Bement-Miles double rotary planer, a view of which is given in Fig. 4. One end of this machine is fixed in position, but the other end may be moved along its bed, is occupied by Fig. 7—View in the Rivet and Bolt Making Department Showing the Storage Bins Filled itionary Skids Between the R t tre example, a plate girder may hay simultaneously, so long as it is -n in length, the bed length of the d ft. over all. A single rotary planer installed, and, of course, can a plate girder, except, of course, that one nished at a time. ynnger of the two gantry runways rys, and views of them are given in F: rs a boring gantry, while the other reaming gantries. In the boring gant: drilling machine in each one columns, and four men are employed to each indicated in Fig. 5, each reaming spindle is n heavy hinge arrangement, one swiveling about ea ner, so that with one setting of the material being and reamed, any number and location of holes with radius of each corner can be commanded, and wit from Overhead Traveling Cra" THE gantry, holes may be drilled and s fashion High-speed steel is ive been drilled per day, or at th per hour. The gantry illustrations runway yr with its a view of the general this department, togeths depressions in the floor in they are movable in the one d against side movements machines in this department is a Hillis & ges of plates Jones machine for The holddowns for the cutting tool travels Another of the interesting position, while re indicated is shop, necessitated on account of the ' k, as stated, is comprised in two New- s with milling attachments, erected e Shop for Making Wood Patterns Full Size for Unusual Structural Members, a Room Conspicuous for Generow IRON AGE — ooo Main Shops at the act urately the angle to each other, s propel of the girders for be planed. Another of the inte is a Schulze & time ago New York City. This is a to cut hanne without the necessity Naumann some from th beams, onsists of tw “avy 1 beam has been plac thrown into gear and strip, going first t beam. It is stated th: in 20 sec i tools fe found valuable in different sizes and different shapes. changed, it is Surface PP oS “ aya yale lie re ods. dice ty ene egcineltaane tea ” sien stage ~ a rt * = - we 7. ye Treated llc, ee ms - _ i 440 THE IRON AGE The overhead transporting arrangement for the as sembling department comprises hoists traveling trans versely across the shop, 10, all told, of 5-ton capacity each, except for the outer half of the shop, where the built up sections become heavier and there are two 20-ton ovet head electric traveling cranes on parallel runways on spans of about 21 ft. and then two 4o-ton electric travel- ing cranes, also parallel to each other. In the case of handling unusually heavy material, the two 40-ton crane~ are used together, and underneath both the 20-ton and the 40-ton canes are also 5-ton hoists. Above the riveting space on the shipping side of the shop is a trolley track for use in handling the heavy riveting machines. The Fig. 10—A Schulze & Naumann Shear for 12 to 24-In. Beams hoists are of a usual type in fabrication shops in that they comprise beams suspended from a point toward each end by lifting tackle and each has two trolleys traveling on the lower flanges of the I-beam Fig. 7 shows a view of one end of the bolt and rivet making shops. The machines and their adjacent furnaces are not clearly discernible in the picture, but the rivets as formed fall on a traveling metal table, which delivers to a bucket resting in a pit behind each machine. This is lifted by a traveling crane, and it is of bottom dumping type, so that when held above the proper storage bin, its contents may be readily dumped in at the top. The only handling, therefore, that the rivets get from the time the material is supplied to the rivet-making machinery. to the time the rivets are removed from the hopper at the bottom of the bin, is the lifting by the overhead traveling crane. Rivets are also packed in kegs in this department for shipment to the site of the erection of a particular structure and the threading as well as making of bolts and tie rods is also done here. The power house of the plant is interesting, and com- prises an installation of gas engines, utilizing to a large extent the natural gas obtainable in the district. There are gas-engine electric units for supplying the electricity needed to drive the various motors about the plant, the machines all being of the individual ‘drive, and also, of course, electricity for the electrically operated cranes; and there are gas-engine compressed-air units for supply- ing the compressed air needed in riveting and for air hoists. At opposite ends of the power house, which is about 200 ft long, is a horizontal Snow gas engine, one at one end driving a Laidlaw-Dunn-Gordon two-stage tandem air compressor, and the other driving a 200-kw. Westing house direct-current generator, and in are eight vertical Westinghouse gas e1 a two-stage Ingersoll-Rand air compress ins aa Three of the Westinghouse engines, ' cylinders, drive two-stage Ingersoll-Rar means of belting. Two engines of tl direct connected to 200-kw. Westinghous ing current at 250 volts, and three of 13 X I4-in. cylinders, drive 100-kw., 2 The motor-driven air compressing unit 150-hp. Westinghouse motors, mounted or and belt-connected to the air compress The Be house has a hand-propelled traveling cra: a span, equipped with a rotary air hoist house has a cement floor and is built with a monitor roof. \mong other interesting features of works be mentioned a sand-blasting outfit of some size in one of the storage yards for sand-blasti: ' structures, such as was required by som the ( ment work for the Panama Canal. At one point ip 4 yard, where the narrow-gauge tracking cr ard gauge tracking, an arrangement is provid a section of the narrow-gauge tracking bodily ud wooden ties fixed to the rails, by means of a jib crane ; narrow-gauge tracking interfering with the use standard track except when removed. Mesta Blowing Engines Shipped to Australia The Mesta Machine Company, Pittsburgh, Pa., i made a shipment of three large blowing engines which } built for the Broken Hill Proprietary Company, Lid Melbourne, Australia. The engines are of the verticd high-speed type and will be used in connection with the blast furnace plant that is being erected there. A brie description of this plan, which will make the first pig iron produced in Australia, appeared in The Jron Age, Febm- ary 20, 1913. \s the engines will be operated by workmen who are inexperienced in handling machinery of this nature, t! were made rugged, so that repairs would be reduce minimum. Two of the engines are for high- pressure e and one for low-pressure work and all have steam fer 44 in. in diameter, with a 60-in. stroke, and 84-in. air cyl inders. All of the air heads for these engines are equipped with the builder’s plate valve manufactured under the Iverson patent, an illustrated description which appeared in The Iron Age, May 29, 1913. Twenty three cars were required to carry this shipment, which had a total weight of approximately 1,300,000 Ib. It was hauled as a solid through train to New York by the Pen sylvania Railroad in 24 hr. from the time it left the com pany’s yards at Pitcairn, Pa. From New York the s ment will be taken by the American-Australian around Cape Horn, the total distance being about Sw miles and requiring approximately 70 days to make the journey. Canadian Iron Ore in 1912.—Shipments of iron from mines in Canada amounted in 1912 to 192,753 gt0S tons, against 187,807 tons in IQITI, z 231,623 tons in I9IC Al ew 230,324 tons in 1909. These shipments do not include \t foundland ore. In 1912 the imported iron ore consum by Canadian blast furnaces amounted to 1,802,820 gross tons, as compared with 1,453,900 tons in IQII, 1,220,4% in 1910, and 1,102,679 tons consumed in 1909. Imported iron ore was obtained chiefly from the United States Newfoundland. The exports of iron ore from Canada" 1912 amounted to 105,472 gross tons, as compared with 3 648 tons in IQII, 102,231 tons-in 1910, and 19,004 tons [909. Riggs, Distler & Stringer, Inc., engineers and contr tors, 23-25 Light street, Baltimore, Md., have been awarded the contract to install a battery of 800 hp. waters boilers, with automatic stokers and extensive power Pi" additions, for the Springfield State Hospital; plumbing and heating contracts for the Eastern Shore State “ ; pital; plumbing and heating at the Maryland , I Cocoubitinn Jessups, Md.; power-plant changes at the Un! \battoir Company, Baltimore. Surface Grinding Machine Side Planer Type with New Fea- es Made Upto 14 ft. in Length ng Company, Worcester, Mass., has e of grinding machine for plane surtace ol the table 5 15 & \ 1 ft. long, depending upon the s! heel head can be raised to gi a wheel 14 in. in diameter ignetic tuck or supple ment company has demonstrated that ntact Of a grinding specially when grind THE IRON AGE 141 sions, which facilitates the strapping of work t 1r the application of a supplementary table Lem ich ir special fixtures. All kinds of plane s Ss W apacity may be ground gq | i ately achine can be us« ilso f ling a wi hapes y means ra c al ng attachm Ba rings are « loye n all shafts I 1idwheels, and heel shafts led with ball thrus gs ll worm gearing $ in oil bath. Worms a vheel s le are ma rome nickel i ( I ull shaft Carings are grou! I | s Dp i quipment is ust t s( g Vays If é st esulting in su ilig ! \ ible has been ¢ lace | S ] ice free f m itt irks Che ind the machine is designed to carry 14- for ordinary work, and other work, as required. For the same used and not the side, ground that the latter and that wer consumption. Too great an ar in Tace réea- the wheel is ce on the gives there is iT nips to escape, undesirable results gives tnese verhead works are done away with, re ing located in the base and i receiving om a 15-hp. motor on the side of eel is carrie d n cross slide perating the table travel. In made possible by the atic feed of the wheel is provided, a secure orde ff use of the wide- the wheel so as to utilize the full verse when truing the wheel face is rm gearing. The cross slide is carried whi is raised and lowered on the p. motor through a lever and friction lI listances the vertical traverse 1s the ver _ andwheel on a shaft geared t micrometer index, graduated rew. & ting of delicate adjustments. erse is obtained by worm gearing which ly smooth motion which is essential for an accurate surface on the work. The table is cushioned pneumatically at the end The table has T-slots of s‘andard dimen- une Which Is Built with Beds up to 14 Ft. in Lengtl apart throughout its length at any angle on the table Che machine is supported on adjusting wedges resting on iro! plates which are embedded in a concrete foundatior it possible to effect realignment easily should o nt tank is provided with a pum lubricant per min. on the wheel an quire. A large water will deliver 30 gal. of work. A Remarkable Immigration 7 + returT nt returns M ovement.— ‘ 76 2 mmigrat i \ . into the United States in that 1 anil Be in only one other month in t 1907, when the total va 184.01 ‘ Tus 108 the panic, only 31,900 aliens entered t gogo, the number s 85,400 tn Tune 16 Business slackened off and i1 7 1,000 Last (,ustav Ras — c 2 R ey tor street , appointed representative in the United State Canada and Mexi for Toh. Kleinewefers Sdohr Cref Germany, and will handle the pany’s various lines machinery These include ld rolling lls and ot equipment for rolling iron and steel oper. brass. The company designs and installs complet nills and a manufactures coinage and engraving ma hinery Lonsiat able of the company’s equipment is now in use in United States, but sales heretofore have been made direct from the Crefeld offices coins mill Penge ee Beak ow ae Pee Sette shes hk FS IE EE ig A RE IT don see +: - = ner tow, aes oregon tT Pa ” ‘ °F naar hag neneg tee oe re ren - os ancient 4 actin ,the works at Duisburg have a total area of 442 THE IRON Plants of the German Machine Works Some Features of the Manufacturing Side of the Deutsche Maschinenfabrik The Deutsche Maschinenfabrik Aktien-Gesellschaft, which is also becoming widely known by its coined name, Demag, Ltd., has already made its impress on this country, and a few notes on the manufacturing side of the insti tution obtained during the recent visit to Germany of th« representatives of the American Society of Mechanical Engineers will be of interest. While the German Ma chine Works has been conspicuous as the builder of some gigantic cranes, it has some seven chief departments, de voted to the following: Mine and quarry equipment, blast furnace plants, steel works, rolling mills, ship-building plants, harbor works and the equipment of shops, foundries, etc. The company also goes in for structural steel work and makes chains, anchors and forgings, and air compressors and _ builds compressed air plants. The company was formed in 1910 by the amalgamation of three firms, one the Ben rather Maschinenfabrik in Benrath, the Duis burger Maschinenbau-Aktiengesellschaft, in Duisburg, and the Markische Maschinen Lauanstalt in Wetter. The three works are not distant from one another, and are all in the Rhenish-Westphalian district. To give an idea of the size of the plant, it may be stated that the amount of business or turn- over for the year 1912 was $100090,000, and the total number of employees is over 6000. The works at Benrath have a total area of 20 acres, of which 51 per cent. is covered: 17.5 acres, of which over 47 per cent. is cov- ered, and the works at Wetter have a total One of the Washing and Dressing Rooms by the signs until it is com- area of 28% acres, of which nearly 30 per cent. is covered. The main office of the company is lo- cated at Duisburg In a general way, it may be stated that with a few exceptions the company does not produce machines in a so-called series, but nearly always single machines are built for special purposes, and this has resulted in a technical staff that is much larger than the commercial staff. Besides some twenty-six drawing offices there is a staff of engineers engaged in working out proposals, traveling, etc. The scale of operations may be indicated by saying that an average of 1800 blue prints measuring about a yard square are produced daily. About one-third Milk Kitchen for Workmen and Staff of the total output of the company is sent outside of Germany, and the company states that for freight alone it paid last year about $125,000. As an item of the administration methods, mention may be made of the fact that the incoming eee is called for at the postoffice eight times a day. The let- ters, which are opened by means of an electrically driven letter opener. are at the same time stamped with the date and are numbered consecutively. They are then sorted by an experienced clerk, who has acquired a thorough knowl- edge of the whole firm by means of his long years of AGE service, and distributed to the different tities receipts collected for them. Each main tect a pares a list of letters received in one da lich te oa in manifold on specially printed forms i. % ee the typewriter. The list contains: dat: ana the letter. name of the sender and an al of the main contents of the letter. Th: the tihng department, which pastes th. from all departments in books, so that tained at any time if a certain letter ha what it contains and where it can be copy ol the list of letters is sent to the m ' a and one or two copies are retained by concerned. The respective chiefs of the then distril against rec departments, are answered tion may be that foreign translated fore they a1 respective d this office ar¢ all outgoing let is avoid as far $5 7 mistakes in te ; sions. If the contents ter concern more a department, this is mad known by the entry of the proper departmental signs ip the space stamped on all the letters by the mail receiving clerk, and the letter is sent from department to depart ment in the order prescribe pletely settled with. The whereabouts of a letter can always be traced tl receipt books which are kept by each department letters, after being fully dealt with, are provided witha mark illustrating this fact and are then forwarded to the filing department, where the copies of the outgoing let ters are also collected. In the publicity department, there is a literary office one of the duties of which is to read carefully the 1% German and foreign technical journals received and to make short extracts of every article likely to interest any department. Copies of the extracts are sent around each week to all the chiefs of departments. In connection with this department, there is a library of about 5000 volumes [he advertising department, among other things, has © provide for models, for example, of large cranes, {0 exhibition purposes, inasmuch as the large cranes them selves cannot well be exhibited. The models are usual constructed to a scale of 1 to 50 or 1 to 25, The num ber of models which have been shown is sufficiently grea for the company to have established its own department for making the models, and it has an exhibit where models may be viewed by visitors. The Benrath Works The Benrath works are located about 6 mil Diisseldorf, and here are made nearly all of th ~~ traveling cranes and loading bridges, blast furnace P nts steel works buildings and the like. It has a bridge uit ing shop over 1000 ft. long and nearly 150 ft. wice . traversed by two overhead traveling cranes of 65 tt ” each crane having two lifts of 15-ton capacity, and ut traveling speed of the cranes is 820 ft. per minute At one point of the works is a high crane 130 ft. long and of 59 ft. span, for an overhead tr crane of 25-ton capacity. The crane is equipped s° 1 automatic grabs of all descriptions can be st ispended tested, and in addition. tongs, stripper suspensi etc., may be attached to them. Below the crane se" bunkers of coal and ore are sunk into the gr und , the capacity of the grabs can be tested not only wit) ® but also when working in limited spaces. [In shop two of the steam boilers required for supplying for the forging presses, steam hammers and like. the waste heat from re-heating furnaces. san room steam The Duisburg Works Duisburg, produce the rolling mill and mining noted with regard hines All the larger machines wit which are equipped with was he trv is t r S strt ins t ne e turnaces I l le r the harden t i nstan I erature | vate l tr hs ar mes are drawn away mean e arrangement for irdenin 1 n¢ itistactory The t l stores ar 1 L- t lies t center tt work ialler machines of large pu ‘ 7 tools | workme! emselves 1 . 1 1 ning t ls, il ny SKIITUI t rindir In addition to m, thers Sat lt m in each Iso kept gauges and the like For machines, on account of the iter required, a pipin is driven by means of and over rolling the 1m roller and then laying concrete to a | which water and the water used over he main shop was made by ies and covering this with about 14 It is found that with the il and grease present the asphalt lan cement. ped in place. tity + } } better t sburg works there is a large erecting shop, In the middle of the equipped with a total of Io cranes, is a 37 «6ft. high, accommodating high- es of 75 ft. and this are two built roof girders 59 ft. high run two 10-ton capacity, and of hen erecting high machinery, or when the ng and 200 ft. wide two niin sls eal span, avove into the cranes of herwise employed, pieces weighing y working the two cranes last When the hight of 59 ft. is not bling large machiner like hy ivy girders vided with a special bed plate 130 ide, fitted all large piece may be worked on by le same In addition, filing ‘ ble and ithe 9 he- , l , and einer a neavy around with heavy ma time bench with bench with six vises for a complete } ; thus ve placed where required, and ad te nd fro of large, heavy pieces The Wetter Works | Wetter, principally making cranes for steel located in the valley of the River machines in this shop, to which attention l-working saw cutting through a chan in 30 sec. It is fi rs, are nm ; und that the rately that after removing the burt f *cut necessary. The saw 00 r.p.m., and full 1 e of the blade, which is of non-hard ided with blunt, tooth-like projections ng in contact with the e part being with vad requires material t be cut, operated on to become hot It that the real action f this than to cut but an nted by water cooling Welfare for the Workmen ns for the workmen are in part as follows: hop, according to the number of workmen vided dressing and washing rooms, fitted ind foot baths and also lockers. Each work- 1 also with coffee and milk stalls. In the ks a milk kitchen is provided with special THE IRON AGE milk-cooling apparatus wit} vitn warming ovens for f |, heat ‘laced at the disposal workmen, wher‘ ly Ss three r four per 5 ether at small ta Minera water is sup} r tl workmen st price t le Sot n he | ‘4 > 5S us ‘ . novation, an ‘ 5 U i count of the f D s ngemen 1S been made for em llings ind nical forces are pr le y a sta nt I 1 ad whicl ' ; ' rough t ( The agents in N¢ Yor VUity Io , 2 | Deutsche Mas n¢ G e N eyer & mond, 82 Beaver street, New rk, and the Wiener Ma inery Company, Ltd t tter g ugent for cold rolling | A Machine for Seaming Sheet Metal Work Elimination of hammering or malleting of the joints make a perfect one Hemp & laimed Vandeventer and Shaw enue St. Louis pee Mo., for their stove pipe machine tended t lose the seam and t gr pe uh ta al lanted for nutiine together all ardinas sine aliGd 15 disY Aa Plead i i Vv ing URCLIICI : ia i1uzes and sizes of stove pipe, including tay ts, a la ~ } . > closing the seams on furnace pips er articles [he machine can be attached t i st,a wallora eT : bench. The operation of closing the s hed by placing the pipe, which has been pri usly rounded up and folded in the customary way, upon the lower bar has a holder to steady th pe and t ever is th Ww ered, thus automaticall sing th Che raisin f the lever preparatory to removing the pipe automaticall sets the machine for the next joint. An Omission.—In an art 7, relating to the gravity ar \ convey syste cently installed in the plant of the National Company, Cleveland, Ohio, it is erroneously state the entire new ( nt was gt ! stalled by the Aly Ferguson Compat Cincinnati, ‘ The endless chain elevator and the gravit ect conveyor that passes tl ¥ e bri I 1 the facturing department to the assorting were ever, designed and installed by the M Gravity rier Company, Ellwood City, Pa ry n it part of the complete equipment and itional-Acn Company states that it is working in satis fact manner. The remain e equipt escribed cluding the helical gravity rri¢ was install ‘ Alvey-Ferguson Company, as stated. The St. Louis Iron & Steel Company, St. Louis, has been incorporated with a capital stock of $3.500,000 by Warren B. Wilson, Harris Trust Building, Chicago, and Norman P. Coffin, William J. Maloney and Oscar |] Reichard, to equip a large iron and | 444 A Manufacturing Roll-Grinding Machine ® independent Traversing the Grinding Wheel Carriage a Feature of the New Landis Product A self-contained manufacturing grinding machin been placed on the market by the | j an ool ¢ Waynesboro, Pa. Although the machine is inter marily for the finishing of hardened el and chill by the grinding process, it can be used for ¢ variety of other cylindrical work, such as large pistons, plungers, printing press | N countershaft is used except whe sire from a lineshaft. Under these cit stances shaft with tight and loose pulleys a1 col alle belting to the machine are requir« the fact that with this arrangem« the machine under a crane for lifting the w out, and no overhead obstructi issagt crane are oftered. The construc I r the I ba bodies the builder’s distinguishing principle t ‘4 the grinding wheel carriage, which is a fixed we } i epee trey aes so tums THE IRON AGE carriage which travels the main The rollers in its hub engage with s: shaft, an arrangement whi yractically frictionless driving c¢ The grinding belt passes over pr ang that the belt length does not c! the base of drive. main drive wheel | ea moved on the cross slide. One ng a at ly adjusts itself any chang ifts el stretches and at the same tin ension vis eadstock is of heavy constructi ur k is driven by a powerful gear een spcet changes can be se ul “ levers at the front of the mac] ( erated by a handwheel wh S at the center can be run int \ f aviest piece in place that the wheel head is massive and flat In this way, it is empha | grinding in inted on a \ ‘ nmin io ? ew > W S* J guide of amplk . i ee r 4 > > yah yy bs ee ; 4 Ql 4 & é 5 “Sit BP? og cee : ; . i 7S e 4 a ‘. vie r 4 oo <. 63 34 (io 1g ee gaa as et 4 yuETS ' +.% 2 - 9 ; ; ‘ j y ‘ j VO VIEWS OI RO NDIN Fe se of the front or operating and tl ( ( ; given in figs. I and 2, w e Fig in ¢ ‘ ea, the relative positions e grin ge wheel *, Pes, and the manner h at ( ¥ +. aed “ : : 5 ; = Sieh The main drive is located in the aa : ° hee Fy as shown in fig. 2, and consists ift exte Sets | ‘all J a a ec a ‘7 1] moth oT ti 1 wr Y ? S ul enetn r tne ed ron [ j bh T n ao mechanisms are independently driven ¢ t a it is protected throughout its entire lengtl hee guard. The grinding wheel driving pulley t ( the wheel carriage, the advantages claimed for t rangement being that an unvaried duty is impos the carriage driving mechanism gid and stat foundation is provided for the work, and there is 1 hanging of the work table. This pulley N WHIC! NG WHEEL CARRIAGE TRAVERS tive action is secured when feeding tor the ig I he k. The spindle, which is 4 am heat-treated steel and runs in ljustment for taking up we ill and socket connection witl g keep them in line with the hand feeds are provided aging wi rit vheel to the work, and in addition t | wer 1 for moving the wheel back being changed and also for ging Is al Nard to t grinding position. This device rs rom the regular feeds, and 1s r : I er al ‘lutch arrangement. The automatic ch" he grinding wheel operates at each revers ae Ss ed 1 el iage, and can be set so as to reduce the aie™ 0.012 in. per reversal Che THE IRON AGE Status of Canadian Iron and Steel Works varied and operated inde ing the necessary traverse The Bureau of Statistics of the Americar tapers the Steel Institute rer rte ¢ it i 1Q12z there wel! ' Car degrees and 21 rolling mills and to plants which made ste« ¢ astings, but not finish« forms of rolled ir 1g ! i al I W rks were 7 = 145 Machine Showing the Relative Posit xe Grinding Wheel OF© fFOM swhichige M he Manner Which The Mounted ‘ sed Phe innual « apacit three-point bearings which ar completed Canadiar last furnaces on Jur 2( n in the size of the necks by 1,391,550 gross tons, and of the two furt building w also can be removed and re 161,000 tons, a total of 1,552,550 tons. The capacity of f he different sizes of rolls ompleted coke furnaces was 1,354,750 tot nd the al bearings are required, whic ity of the completed charcoal furnaces 36,800 r tipping the roll to an angular capacity of the ke furnace in process of build ve and the other below the hor 125,000 tons and of the u mpleted charcoal furna vheel, which causes a concave 2.000 tons uated scales indicate the vertical by Screws. The se bearings Cal straight rolls, and the arrang« A New Refractory.—Boron nitric ne is the same in this cas¢ \ uni- material, has been patented in the 1 State rms a part of the concaving Weintraub. It is infusible at th tric arc and is also chemically inert. Its resistance to tl ‘ : - - ‘ in three groups r tour sizes passage Of an electt ‘ at t eratu gths of work handled by the the carbon arc, is extremely hig! Carbon is the p are 10, 12, 14 and 20 ft., re ther substance resembling it in such properties. Un um diameters for the groups ul howeve t I hemical tende I v1 ctively ner materiais whi ire likely t ( A sed, the motor being mounted an electric furnace. When properly iain drive base and connected necessary and the purity of the material ma t through a belt, as may be when making al nds ntainers. It lso be placed on the ceiling or y in n¢ rt thods I wer transmitted through a belt technology. machine for the motor is The Atlas | g. Com ‘ ‘ ‘ Ider of industrial i motive I inite, is prepared in the electric he ren ts fant t ts 1 ‘ ly resistant t acids, not being Ivanhoe roa 7 eland Che , . bromine or by hydrochloric, steel const 00 x 400 it d gives the la regia Its specific gravity) pany ns t > rea ‘ pre : de ( s heat nductivity For the prese e offices will rema atu ad site t rros s 1000 times that of Marquette avenue it it is the imtention t uld near tuture al ice Diniding adjoiming ae ta a4 + bo rh ed —. < + iA if ek Pye ~ oe wear ‘ ..h ae : } 1 . ~ Pig my ene 2 oe Nga inks * % els hay eee seal sictng rnd Ds Face aa Pee ad - ar. eh a ‘ s \ = a -— ‘ft : 2 ’ melt “ ~~ ae * henewib oe: =e 5 * : 5 R aed ih eh int a Ae ae ri he Tee i> i 440 THE IRON AGE 18 Drilled Holes in Structural Steel Elastic Limit and Resistance to Breaking Higher After Drilling—Effects of Punching In Le Genie Civil for July 19, 1913, C. Birault, chief of the department of testing materials of l’Ecole Centrale Paris, discusses the effect on the elastic limit and tensile strength of drilling and punching holes in structural steel Mild rolled steel, such as is usually employed in building construction, was cut up into bars and used in the expert ments. The author claims to have established the fact that the resistance to rupture of solid bars and perforated bars of the same metal is not proportional to the section o1 the bars, proper allowance being made for the perfora tions. Section for section the advantage is in tavor of the perforated bars if the holes ha been drilled and n punched. In fact, the holes weaken the steel much less than would be expected, provided care is taken to drill the holes or to ream them after they have been punched The elastic limit and the resistance to breaking are thet One Set of Physical Tests Showing Effect of Drilled and Punched Holes higher than before the drilling. Certain facts which the experiments have established furnish a satisfactory ex- planation of this In the first series of experiments three bars were cut from one piece of steel. One bar was pulled in its original condition; the second bar was perforated with two holes by drilling, located on the small axis of the bar, and the third bar was perforated similarly, except that the holes were punched [The holes in each case were of 15 mm diameter and spaced at a distance of three diameters from center to center. The bars were pulled on a 300-ton test- ing machine. Several sets of such tests were made. The illustration shows a series of the three kinds of bars pulle from the same steel. The fractured ends are placed in contact. It is readily seen that the plain bar has elongated much further than the other two, since the molecular fatigue is less localized than in the perforated bars. The bar with the drilled holes, the middle one, has elongated fu rther than the one with the punched holes, and in it the he have become decidedly oval, which is not true of he grates rie holes. The comparison of the two perforated ars suffices to show how the drilling or the punching of \ \ 1 } i t | holes modifies or ameliorates the properties of resistance of mild steel. It is also seen that the fracture of the punched bar has not taken place along the diameter of the holes. This is probably due to the fissures in the metal caused by the action of the punch. It is quite the con- trary in the case of the drilled holes, which have parted at their central diameters. The numerical results also support the evidence in favor of drilled holes, showing also an increase in tl le elastic lit it and tensile strength of mild steel The results of three sets of tests are given as follows: Se Plair 5 es lth deiiled holes Ba witl ed ‘ Set from se 1 Flas g T sil . Plain bar Bar with drilled holes Bar wit yunched es Set from third ba Elastic limit, ke. Tensile streneth. ke ere ree 7 4¢ far with drilled holes m 19 4 Bar with punched holes 34 24.2 It will be noticed that in each case the elastic limit is higher in the bars having perforations than in the plain bars, with the increase in favor of the punched holes over the drilled, while in the tensile strength there is an in- “yi rease for the bar with the drilled | bars, the bars having punched holes | — strength as compared with the plain. ae sults in terms of percentage, the bars a oe have 12.3 per cent. greater average e] te é. “ per cent. greater average tensile stret " f the same steel. In the case of the “ has been an average increase of 13.5 . limit and an average decrease of 8 per ' a trength as compared with the plain bars 7 In the second general series of tests. 7 ated with drilled holes of various dian a ffect on the physical properties of ( - lain bars of the same ec Hol f IT. 8 antl liameter were drilled in various set tested as a comparison against the plait 7 we i follows " Elastic limit, kg E + oo i B , sles of mm 32.3 B é f 8 m 32.0 B les of 6 mm 33.7 It is evident from these that the two ria are higher in the case of the smallest h veal larly so. Taking the holes of 11 and 61 ' the increases in percentage over the plain ba Elastic limit, per cent. increase . Ho f liameter...... 11.8 Hok f 6 mn liameter...... 16.6 7 It will be noticed that the increases in the first seriec of tests where the holes were 15 mm. in diam: the same as those of the second series with holes 8 mm. diameter. But in the case of th smallest les those of 6 mm. diameter, these increases are ren adiy higher, having attained 17 per cent. over the plain bars \nswering in general the question why there are sud increases in the physical properties of bars with drillef holes over the plain bars, the author states that in bring ing into contact the fractured ends of th found that the two parts are not complementary; that that there is a hollow space near the center re the metal has evidently drawn away first, the bri n pro ceeding gradually to the two sides. If, how: perforated with holes that are smooth, rill les, and not having fissures as in pun tendency of the metal to separate and weaker ind the mean resistance to rupture is m The results of these tests show that too strong on the practical importance of at least ream- ing out the holes that are punched in mild ften neglected for economical reasons. Some of tit results show that the breaking is often ver elastic limit of the steel. Quite the contrary is true a \f drilled holes New Heat-Treatment Plant at Altoona he Pennsylvania Railroad has erected a new lea treating plant at its shops in Altoona. It has been locatet } 2 blacksmith shop at the Juniata works anc wa f several large furnaces for heating the std ‘ a j 1 - - . On { the parts and a large tank of water for cooling. e ort new furnaces will be vertical, having a hight with inside and outside diameters of 6 ft. and 8 ft. 2™ respectively. Another one of the larger furnaces will iting chamber 7 ft. wide, 14 ft. long and 2 f0® hig] This furnace will open at the bottom, its floor bem eparate and mounted on wheels; thus what is virtually’ flat car, with steel trucks and underframe and a fire one floor, will form the bottom of the furnace. This car @ e loaded with parts to be treated and then pushe furnace on a track provided for the purpose. Une 0 ™ smaller furnaces will have a heating chamber 4 ft. *7* 18 in. high. These are to be used for experiment al pan poses and for small locomotive parts. The furnaces W" burn crude oil, the same as is now being used in 2 st many of the furnaces throughout the shop The watet tank will be 14 ft. x 13 ft. 9 in. x 20 ft. deep and 3 ny ° narts ‘ the at the top. A 12'%4-ton crane runs over it, as a = the furnaces. This will facilitate the handling of t : ’ ~ avail i in moving them from the furnace to the tank ame again. Snecial Lathe for Turning Tapers »ymb-Blaisdell Machine with Ta i Swiveling from the Head End 7 laisdell Machine Tool Company, Wor- Ml rought out a new type of taper turning ral original features. The most con- the mechanical method for setting ind the fixed end feed works. to the foot on a 5-ft. rated as a I4-in. machine and swings ed and 10% in. over the carriage. Fig. the new lathe, while details of the ck ends are given in Figs. 2 and 3, ting the lathe to turn tapers affords a igidity. There are two beds, one within iter being that ordinarily used on the com- ine giving very large bearings, which life of accurate production. The inner tted to the outer, upon which it rests the two surfaces being scraped to a | surfaces at the end and on the gen the center. ts at the head end of the machine on eft of Fig. 2, an arrangement which k of the Special Turning Lathe Showing the >wivel Stud and the Feed Drive THE IRON AGE 147 permits of great accuracy of work. At the tail end of tl outer bed are a number of holes that take the adjusting screw plugs which give the approximate taper, while tl final setting is obtained by the screws. After adjustment is secured, the bed is clamped in place by binder bolts, } at the head and tail. Because of the swiveling from tl head of the lathe the end feed works remain fixed, no mat ter what the taper may be, with a fixed distance between the two cones of the feed drive, and consequently the usual necessity of lengthening or shortening the feed belt does not exist. The swivel stud is drilled out to carry the ver tical shaft which drives the feed from a bevel gear at the top through a spiral gear which eng the pulley. The machine is furnished with belt feed, as shown, or with all gear feed, so arranged that three changes are obtained without substitution of gears The massive carriage has long bearings on the ways, and a bridge 6 in. in widtn. It is equipped with the new torm of rise and fall rest, which removes the necessity f a double carriag« r with plain gibbed block On the Fig. 3.—View of the Lathe from the Ta g Two Beds and Adjusting Screw Plugs cross feed is a large micrometer adjustment. An auto- matic stop for the feed is provided. The machine has device for tightening the main driving belt. It is furnished either with a three-step cone pulley and double back gears, or with a special single pulley drive, all-geared head Natural Gas in New Brunswick.—The St. John Board of Trade, St. John, New Brunswick, says: “Thos« who believe that natural gas is to play an important part in the industrial development of New Brunswick were confirmed in that belief last week when the Maritime Oil Fields, Ltd., struck a new well with a yield of nearly 4,000,000 cu. ft. per day. The pressure was so great that it was with considerable difficulty the workmen were able to cap the well. It is claimed that the pressure in these Albert County wells is greater than in any other gas wells in Canada. Moncton is now supplied from these wells, but as yet only requires 1,000,000 cu. ft. per day, and, as the number of wells is increasing, the quantity of gas that is available for all purposes steadily grows.” 448 THE IRON AGE A New Surface Grinding Machine Details of the Recently Developed Pratt & Whitney 22-In. Vertical Machine The unusual results- obtained from the small vertical surface grinding machine which was mentioned in The Iron Age, December 30, 1900, has led the Pratt & Whitney Company, Hartford, Conn., to develop a 22-in. vertical surface grinding machine. This machine is designed to handle either plain or circular grinding. In general con- struction the machine is the same as its smaller forerun- ner, although, of course, the various parts are much larger. Front and rear views of the new machine are given in Figs. 1 and 2, respectively, while the arrange ment of the mechanism for varying the table and grind- ing wheel feeds is shown in Fig. 3. Fig. 4 is a detail of the grinding wheel and a double magnetic chuck. The bed has wide bearing surfaces of the V and flat type, oil reservoirs being located in the bed for oiling the ways by rolls \ pan of liberal pr rtions, which is easily accessible for cleaning, surrounds the rear of the bed for collecting the water and receiving the chips. Either 4 or 7 ft. tables can be regularly finished for the machine, 1 the bed being made in two sizes to accommodate them. Guards are provided for the table, which protect the bear ing surfaces from injury, and a spacious pan is cast 11 ral with the table for controlling the water and the c The upright is bolted solidly to the bed, wide bearing surfaces being provided for the accommodation of the head. A taper gib forms a part of the construction and is us