Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 137
314. HYDRAULIC LIFTINGJACK. The shell of the jack extendsover and nearly to the foot of the ram toenable a lift at both head and foot of thejack. The small plunger and valves areoperated by the lever and arm D, forlifting, and the by-pass valve serves forlowering a load or closing the jack by…
Mechanical movements
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