Hague, Charles Arthur · New York : McGraw Publishing Company · leaf 135
lly continuous valve stem forboth main valves; the balancing piston and supporting columnis directly over the steam chest; and the entire design has proveditself by years of usefulness to be of the very highest typeof means to suit the ends sought. The air pumps, four in number generally, although… … m. WORTHINGTON DUPLEX PUMPING ENGINE 113 angular bell-crank lever connected to the main cross head, andthe shafts of the bell cranks are utilized for giving motion tothe valve gear. The condenser is situated directly beneath thehigh pressure cylinders and half way between the two, uponthe lower…
Pumping machinery
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