Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 292
ngle cylinder pump valve motion is a compoundvalve piston and slide valve in one piece and performs the office The Steam Pump. 293 of both a main and auxiliary valve. It seats over the mainsteam cylinder on the web or casting connecting together thevalve pistons, and is provided at the bottom with… … opening and closing the small steam ports, which admit steamto the valve pistons; it is also provided with L shape slots forthe purpose of alternately exhausting steam from the valvepistons through the steam ports.
Hydraulic machinery · Pumping machinery
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