. Railway mechanical engineer . Front View Showing thie Massive Face Plate the teeth are required to withstand in turning the faceplateat the slow speeds required for work of large diameter. Thetriple gear which engages the faceplate internal gear has adiametral pitch of one and a face width of six inches. Every shaft in the runs in phosphor bronze. Tile Latiie witii tiie Face Plate Removed operator. The handwheel is geared to a lever shaft whichmaterially reduces the effort required to shift the back gearsinto their desired positions. Only one change is madethrough sliding gears, t
. Railway mechanical engineer . Front View Showing thie Massive Face Plate the teeth are required to withstand in turning the faceplateat the slow speeds required for work of large diameter. Thetriple gear which engages the faceplate internal gear has adiametral pitch of one and a face width of six inches. Every shaft in the runs in phosphor bronze. Tile Latiie witii tiie Face Plate Removed operator. The handwheel is geared to a lever shaft whichmaterially reduces the effort required to shift the back gearsinto their desired positions. Only one change is madethrough sliding gears, the others being made by means ofmassive tooth clutches. The gearing and cone pulley isdesigned so that all speeds are in geometrical progression,the slowest speed being and the fastest speed bearings and is well lubricated by means of sight feed oilerswhich are in view of the operator at all times. The feeds are also in geometrical progression and areobtained from a quick change gear box which is integralwith the headstock. They are manipulated by the two leversshown in the illustrations, which move in either direction,giving four feeds of , , and in. for 498 RAILWAY MECHANICAL ENGL\EER Vol. 93. No. each revolution of the face plate. More feeds may be hadby changing the regular feed gears with the thread cuttinggears.
Size: 2245px × 1113px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
