Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 33
out equal in length to the diameter of the cylinder. Steampressure acts upon the backs of the valves keeping them pressedagainst their seats, but the friction is small since the valves aresmall and they travel only a short distance in rotating througha small angle. The travel of the valve, in order… … Fig. 13. two ports through each valve, the valve need travel only one-half as far for a given port opening as would a single portedvalve. The Corhss valve is operated from an eccentric, the same asa sUde valve, but it differs from the sHde valve in that the admis-sion valves are connected to the…
Steam-engines
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