. Electric railway review . men whohave had former railway experience. A student switchman isobliged to pass the same examination as a student motormanbefore he is accepted as a competent switchman. The foregoing information was furnished by Calvin , secretary to the president, Metropolitan West SideElevated Railway. CUTTING NEW PINIONS FROM OLD PINIONS—INDIANAUNION TRACTION COMPANY. The Indiana Union Traction Company has just put intopractice in its new shops at Anderson, a shop kinkwhich is interesting and shows a decided economy. The com-pany has 11 different varieties of moto
. Electric railway review . men whohave had former railway experience. A student switchman isobliged to pass the same examination as a student motormanbefore he is accepted as a competent switchman. The foregoing information was furnished by Calvin , secretary to the president, Metropolitan West SideElevated Railway. CUTTING NEW PINIONS FROM OLD PINIONS—INDIANAUNION TRACTION COMPANY. The Indiana Union Traction Company has just put intopractice in its new shops at Anderson, a shop kinkwhich is interesting and shows a decided economy. The com-pany has 11 different varieties of motor equipments and ithas been found possible to take the worn-out pinions of rlielarger sizes, turn off the worn-out teeth and recut new teethin the blank, making a new pinion from an old one. As there was no gear cutter or milling machine in theshops an attachment was made to do the work on one of thelathes. A casting was fitted on the cross slide of the lathe, asshown in the illustrations. On top of this lower casting was. Indiana Union Traction—Recutting Pinions—Rear View,Showing Index Centers. fitted another which carries the index centers and the order to get the proper adjustment for depth of tooth thesetwo castings are joined by inclined surfaces, the upper onearranged to slide along the lower inclined surface until theblank is set at the proper height for the depth of tooth to becut. The teeth are spaced by an index head. The cutter iscarried on a mandrel, but the smaller end, instead of beingsupported on the tail center, has a sleeve surrounding itclose up to the cutter. This device was designed sufficiently strong so that it would In possible to do rapid anil accurate work. Tin- teethof ;i 2%-pitch steel pinion are cut to the lull depth ai one cutter is speeded to <- feet per minute and the blankfed against it at a speed of 1 inch per minute. Lubricatingfluid is forced against tin- cutting edges with compressed ihis device a 20-tooth
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
