Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 389
EAR.—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. ^ 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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