Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 244
worm, or with a fixed rack; theworm, sliding over a feather-key shaft, will drive sliding nutsholding a hoisting car or platform. 908. ROTARY MOTION of worm gear froman ordinary screw, or when the screw has greatpitch, rotary motion of the screw may be obtainedfrom the rotation of the worm-gear… … 234 GEARING.
Mechanical movements
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