Railway and Locomotive Engineering . e, lilted with two cuttingtorches for making duplicate cuts at thesame time, and is especially designed forheavy work. In point of precision itcannot be approached by hand work, asthe operator does not require to comenear the torch or torches, his work beingto guide the pantograph over the lines1 the enlarged drawing, the cuttingllame following the direction thus guided• \ er a smaller and, consequently, more xact line of movement. Coming to the use of the oxy-acetyleneelding and cutting process and equip-nenl, we reproduce some illustrations of! ciiairs re
Railway and Locomotive Engineering . e, lilted with two cuttingtorches for making duplicate cuts at thesame time, and is especially designed forheavy work. In point of precision itcannot be approached by hand work, asthe operator does not require to comenear the torch or torches, his work beingto guide the pantograph over the lines1 the enlarged drawing, the cuttingllame following the direction thus guided• \ er a smaller and, consequently, more xact line of movement. Coming to the use of the oxy-acetyleneelding and cutting process and equip-nenl, we reproduce some illustrations of! ciiairs recently made in the shops ofone of the large Eastern railroads. shows one of the pieces in side sheetstaken out above half side sheet cutting of 40 feet in length of J^-inchmetal occupied two hours, with a con-sumption of oxygen amounting to 130 < wm\ f^ FlC. i . , (..\K Ol- IWO cur SIDE OF , \K,\TORY TO , IN NEW PIECES liy ).\Y September, 1916. RAILWAY AND LOCOMOTIVE EXGINEERIXG. 303 cubic feet, the approximate cost being$ Fig. 3 shows one side sheet witha piece cut out, and Fig. 4 shows thepatch welded in. To replace the particu-lar patches referred to, the time occupiedwas 20 hours, about SOO cul)ic feet ofoxygen was required, involving a totalcost of $15, with an additional expendi-ture of $ for removing and replac-ing stay-bolts, making a total expendi-ture of $ If these patches had beenapplied by the old method—that is, with-out the use of the welding and cuttingtorch—the accurately estimated costwould have amounted to $ Theopinion of the boiler maker experts thatpatches put on by the old method wasthat they would not have lasted for anylength of time, and it would soon have the spokes of a locomotive cast steeldriving wheel. The time occupied in mak-ing the repairs by completely weldingthe cracks was two and a half hours,with a consumption
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
