Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 241
o its seat, thus making it certain that the valveis seated when the plunger starts on its delivery stroke, allowingpractically no slip. A high air suction chamber containing acolumn of water is placed immediately before the suctionvalve, so it is certain that the pump will fill as the plungermoves.… … Compass Needle—See Page 266. ELECTRICITY AND ELECTRICALMACHINERY. Each kind of power requires its own special machine-^ soconstructed and adapted as to utilize it; hence, to be service-able to mankind, electricity demands machinery suited to itsnature; what that is, will be indicated in the…
Hydraulic machinery · Pumping machinery
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