Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 289
Fig. 251. 290 Pumps and Hydraulics. LAJDLAW-DUNN-GORDON. The single cylinder pumps of this make are equipped withthe gear illustrated in Fig. 252, in sizes varying from 4 inclu sin diameter by 5 inches stroke to 28 inches in diameter by 2\inches stroke. The arrangement of valves and ports is shown… … flG. 252. Assume that the piston is in position shown, Fig. 253, aridthat both the main a/.d auxiliary valves cover their respectivesteam ports. By means of a starting bar, operating through astufifing-box in the valve chest, the piston valve, A, is moved to-ward the head of the steam chest, D,…
Hydraulic machinery · Pumping machinery
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