Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 315
n pumps where the first part of the strokei; made quickly, and ihc piston is then suddenly stopped by 316 Pumps and IFydraulics. coming in contact with a solid body of water, the latter partof the stroke being made much more slowly. The springs oneither side of the auxiliary valve take up lost… … Fig. 281.
Hydraulic machinery · Pumping machinery
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