Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 152
DOUBLE-ACTING DIFFERENTIAL PUMP. —The lower section is of the same constructionas the ordinary lifting pump. The uppersection has a solid piston connected by rod tothe lower bucket piston, and moving in anopen cylinder projecting down from the cover,thus making the upper part of the pump an…
Mechanical movements
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