Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 309
1215. MAST AND GAFF HOIST, for unloading coal barges to an elevatedtrack. A portable boiler and steam hoistor an electric motor hoist, with occasionallya horse pull, are the motive powers. 1216. COAL-LOAD-ING TIPPLE and sort-ing screens for loadingcars. The screens areinclined at the slidingangle… … 1217. OTIS STOP for elevator cars. B,car frame sliding on the ratchet posts A, A;d^ d are the stop-dogs operated by bell-cranklevers to thrust the dogs into the ratchets on therelease of the eye bar b^ by a break in the ropeor hoisting machine. The spring c quickens theoperation of throwing out the…
Mechanical movements
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