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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 260

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 260
993. RATCHET BAR LIFT.—The vibra-tion of a double-bell crank lever gives a ratchetbar and attached rope great power for liftingor tightening a binding device. … 994. RATCHET LIFT.—Vibrating lever C,operates two hooked pawls on the ratchet bar A andlifts til e bar. The slot serves as guide. The othermember may be a suspension or standard attach-ment. Much used in ratchet jacks and stump-pullers. 995. RATCHET GOVERNOR, for water-wheels or other prime…

Mechanical movements

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