Appleton's dictionary of machines, mechanics, engine-work, and engineering . one-pulley for driving feed-shaft. It runs loose on a stud, and has a pinion on inner endto drive the two worms. E, worms—one right, the other left—which drive the two worm-wheels so as to feed towards the rightor left, as the operator may wish. On the worm-geer shaft there is a pinion driving a geer on the shaftabove, which has a chain-pinion, around which an endless chain passes, attached to the rest. A is a hand-wheel for moving rest by hand. There is a pinion on the other end of the hand-wheelshaft geering into a
Appleton's dictionary of machines, mechanics, engine-work, and engineering . one-pulley for driving feed-shaft. It runs loose on a stud, and has a pinion on inner endto drive the two worms. E, worms—one right, the other left—which drive the two worm-wheels so as to feed towards the rightor left, as the operator may wish. On the worm-geer shaft there is a pinion driving a geer on the shaftabove, which has a chain-pinion, around which an endless chain passes, attached to the rest. A is a hand-wheel for moving rest by hand. There is a pinion on the other end of the hand-wheelshaft geering into a rack K on the side of the bed, as shown in Fig. 2507. F is the tool-holder. J, top part of the rest which slides crosswise of the bed by means of the crank and screw. I, square spindle, which is moved by hand-wheel V, and screw inside of shell G. It is held firm inits place by the handle-nut H. a, thumb-screw for raising , step-screw. b, thumb-screw for adjusting tool in rest. This lathe will swing ] 6 inches over the sills and 1 inches over the rest. LATHE. 183. 184 LATHE.
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
