Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 306
Fig. 272. The Steam Pump. 307 THE GUILD AND GARRISON. The steam chest of this pump differs somewhat from otherpumps in which valve pistons are employed to operate themain valve. See accompanying engraving, Fig. 272. Thispump has a steam chest with a cover for inspection and repairs.This chest is… … FlO. !?73. the steam chest is an auxiliary slide valve, G, Figs. 273 and 274,which admits and releases the steam from the ends of the valvepiston. The valve piston, E, has two slots at the center, thelower one receiving the lug on the back of the main valve andthe upper one the toe on the rocker…
Hydraulic machinery · Pumping machinery
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