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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 33

An illustration from 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, leaf 33
41. CHINESE SHAFT DERRICK.—The sheaves suspended from the upper part of thederrick legs allows the bucket to be raisedabove the mouth of the shaft or pit by thedifferential windlass. 42. COMPOUND WEIGHT MOTOR, iot a limited fall. The power is only equal to one-half of one of the weights. The time… … VWVWWWV^ 44. SPANISH WINDLASS.—Much used onover-truck frames for suspending the load. 45. ROPE GRIP HOOK—for takinga temporary bite on a hawser.

Mechanical movements

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