Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 200
paratus) withits pole for one horseand two poles for two horses and its wrought iron tumblingshaft has been so modified that a horse operates the pump,by means of a sweep, direct connected to the pump crankshaft. The animal will make three to four circuits per minute,giving the pump crank shaft a… … Fia. 173. 202 Pumps and Hydraulics. DRIVEN OR TUBE WELLS. Aside from the wells described on page 45 and those follow-ing it, there are wells made by forcing iron tubing down intothe earth until a water supply is reached. Within reasonable
Hydraulic machinery · Pumping machinery
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