Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 188
steam-end and a water-end and which consist ofpump and steam-motor combined. An interesting class underVacuum-pumps will be found, i, the combined vacuum andfeed ; 2, the C(jinbincd vacuum aiul ciiculaiing and, 3, the com-bined vacuum and refrigerating pumps. Under Pumping Engines and the Steam… … 1: IG. loH. HAND PUMPS. The theoretical action of z. pump has already been describedind illustrated ;—the practical operation is described in thenote below. The subject is importantenough to justify the space it takes topresent these two descriptions of theaction of a pump. The parts of which a…
Hydraulic machinery · Pumping machinery
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