. American engineer . w this process is used in ma-chinery repairs. The valve rod guide was cracked from the key-way out. The crack was chipped and welded by the electric process. Ordinarily the defective guide would have beenscrapped and a new one forged and machined. Fig. 11 shows thecrack chipped preparatory to welding. Fig. 12 shows the guideafter it was welded, the weld not being dressed. Fig. 13 showsthe job completed and the guide ready for service. A compari-son of the cost for a new guide and the cost to reclaim thecracked one is as follows: New guide, forged and machined, complete $5
. American engineer . w this process is used in ma-chinery repairs. The valve rod guide was cracked from the key-way out. The crack was chipped and welded by the electric process. Ordinarily the defective guide would have beenscrapped and a new one forged and machined. Fig. 11 shows thecrack chipped preparatory to welding. Fig. 12 shows the guideafter it was welded, the weld not being dressed. Fig. 13 showsthe job completed and the guide ready for service. A compari-son of the cost for a new guide and the cost to reclaim thecracked one is as follows: New guide, forged and machined, complete $ Cracked guide, electrically welded and machined, complete $.83 An electric weld on the spoke of a cast steel trailer wheelcenter is shown in Figs. 14 and IS. This gives another idea ofhow and where the process may be applied with success. Thewheel center in question was returned to service seven monthsago and has not been heard from since. Fig. 14 shows thespoke chipped and Vd out, ready for welding. Fig. IS shows. Fig. 5—Patch Under Fire Door with Edges Welded Instead ofCalked. the spoke welded, but not dressed. The costs for doing thiswork by the old and the new methods are as follows: Old method—Dropping wheels, transferring, removing tires, remov-ing wheel from axle, cutting rim for expansion, making w-eld, re-placing tire on wheel and wheel on axle and under engine, coup-ling up; all work complete, ready for service $ New method—Preparing weld, labor of weld, material, current, and final dressing, complete $ A rocker arm which was partly cracked around the bottom ofthe bosses is shown in Figs. 16 and 17. By the old process itwould have been necessary to cut the ends of these arms off,.forge new ends, and weld them to the rocker at the forge. Withthe electric welding process it was only necessary to chip out thecracks, weld them up by the new method, and machine down thebosses. Fig. 16 shows the bosses chipped and Vd out ready forwelding. Fig. 17 shows th
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
