Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 387
378 MISCELLANEOUS DEVICES. 1563. SAFETY CATCH FOR ELEVATORS.—The eccentricsector levers are connected at their pivots to friction shdes behind the guide rails by links. Thefront slides are ratchet bars onthe face of the guide rails.The balance weight intensifiesthe action of the grips whenthe rope… … A W
Mechanical movements
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