Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 221
Fig. 202. Fig. 203. 222 Pumps and Hydraulics. above the water) and aids the piston in setting the column of water in motion again. Thus the flow of water into the suction chamber of the ])ump is much more uniform during each stroke of the piston than without the vacu- ,- --^ um chamber, and…
Hydraulic machinery · Pumping machinery
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