Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 350
1411. HARRINGTON CHAIN HOIST.—Aworm gear operates a double-chain sprocket, withchains yoked at hook. 1412. YALE DUPLEX HOIST.—A wormF meshed in a gear on the same shaft with thehoisting-chain sprocket. A, Hand-chain sprocketon worm shaft B; C is a friction plug whichholds the worm from running…
Mechanical movements
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