The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 413
pic joint: thevalve is indirect, having steam onthe inside. The very long portsare a disadvantage of this scheme.4. The B valve. Fig. 260, issometimes used in small steampumps: the essential characteristicis that with the steam-chest ar-rangement of the direct valve, ithas the movement of the… … Fig. 260. — The B Valve.
Steam-engines · Steam-turbines
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