Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 319
ng at one end or the other of the strokeuncovers the ports, and the moment steam is admitted thepump will start. Referring to the engravings, A, is the mainsteam pipe, and B, the auxiliary steam pipe. These pipes areone, inside the casting, so that one pipe supplies both. Assumethe valve, C, moved… … VJ
Hydraulic machinery · Pumping machinery
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