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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 385

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 385
AR. —When the cage is lifted the pivoted armpulls the pawl clear of the rack. A break-age of the rope lets go the pawl arm, andthe spring throws the pawl into the rack. Y 1566. SAFETY CATCH FOR ELEVATORS.—A lever pawlpivoted to each side of the elevator cage is kept clear from the rack guides by…

Mechanical movements

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