Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 387
hen the cage is lifted the pivoted armpulls the pawl clear of the rack. A break-age of the rope lets go the pawl arm, andCAiSE the 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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