. Railway mechanical engineer . Fig. 4—Planing a Lot of Boxes at one Setting •eacli pair of boxes and drawing the work fimih- down to theplaten surface. The top of the boxes are finished on the draw cut shown in Fig. 5 where a single box is set up, as indicated,against an upright surface on the side of tlie table. Themethod of strapping and clamping here is well indicated inthe photograph. BORIXG AND The boring of the brass and the facing off of the babbittedface are performed in the double spindle machine shownat the bottom of the page in Fig. 6, where two boxes are ma-. F
. Railway mechanical engineer . Fig. 4—Planing a Lot of Boxes at one Setting •eacli pair of boxes and drawing the work fimih- down to theplaten surface. The top of the boxes are finished on the draw cut shown in Fig. 5 where a single box is set up, as indicated,against an upright surface on the side of tlie table. Themethod of strapping and clamping here is well indicated inthe photograph. BORIXG AND The boring of the brass and the facing off of the babbittedface are performed in the double spindle machine shownat the bottom of the page in Fig. 6, where two boxes are ma-. Fig. 5—Planing End of Boxes in Draw Cut Shaper chined simultaneously, the spindles being set, in this case,at opposite ends of the cross rail. The boxes are securedin the broad face chuck jaws and tlie practice is to first runtwo boring cuts down tlirough the work. The spindle and cutter are operated at 60 turns per min-ute for the boring cuts and a feed of 1/32 in. per revolu-tion is maintained. The depth of chip for the first or rough-ing cut is from j4 in. to yi in. and for the finishing cut1/32 in. on a side. The long cutter shown in operation inFig. 7 is used to finish the babbited face of the box. This
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
