Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 150
510. REVERSING MOVEMENT for a pump valve. The piston-rod trip carries the ball frame beyond the level, when the ^ ball rolls across and completes the valve throw. 511. DOUBLE-ACTING LIFT AND FORCEPUMP.—In this form the work is the same for eachstroke of the piston, and the pressure equal to… … 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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