The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 133
l A, and on the return stroke forces an equal quantity of airfrom the smaller to the larger vessel B. C is a double air valve. 1037 Combined bucket and plunger pump draws on the up strokeonly, but delivers on both strokes. 1038. Air pump, with foot and head valves. 1039. Hand or power pump. Can be… … 128 THE ENGINEERS SKETCH-BOOK. 1041. Double barrel pump, with bucket pistons. The water passes both pistons, which are fitted with valves opening opposite ways. 1042. Oscillating sector or quadrant pump, with one vane or piston. 1043. Double quadrant pump. The two vanes are worked by links from a…
Mechanical movements
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