Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 208
at either end of its travel the valve is displaced from itsmid-position a distance depending upon the distance from the endof the combining lever to the point at which the eccentric rod isattached. This distance is made great enough to displace thevalve a distance equal to the steam lap plus the… … Fig. 123. center, the valve is displaced to the left of its mid-position, thusgiving lead at both ends of the piston stroke. By erecting the mechanism so that the combining lever standsin a vertical position when the piston is at the middle point of itsstroke, the displacement of the valve is made…
Steam-engines
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