Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 228
Fig. 209. … Fig. 210. 230 Pumps anc^ Jlydraiilics. on the top of each plunger. This pump is largely used as a■boiler feed pump. These pumps can be used separately or together and with single or compound connections. Duplex Poivcr Pump. This engraving, Fig. 210, shows aspecial boiler feed pump having ball…
Hydraulic machinery · Pumping machinery
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