Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 214
etween C and B\ The valve remains closed during this period.A further movement of the wrist plate through the angle betweenB and A moves the steam arm through the angle between B andA and the valve is opened during this period. It will be observedthat although the wrist plate moves through a… … Fig. 127. has a slow motion while it is closed and a fast motion while it isopen. This effect is even more pronounced since the wristplate moves slower when near its extreme position (when thevalve is closed) than it does when near its central position. The above remarks apply only to the opening…
Steam-engines
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