Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 262
994. RATCHET LIFT.—Vibrating lever C,operates two hooked pawls on the ratchet bar A andlifts the 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 movers. The pin cam is in constant revolution. The double-ratchet rack B, held clear of the revolving pin at normal speed, israised or lowered by the action of the governor on the suspender A.The extension rods of the ratchet frame operate a…
Mechanical movements
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