Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 207
ual to the steam lap.In order to allow the engine to run the valve must be displaceda distance equal to the steam lap when the crank is in the positionshown in Fig. 121. The valve will then be on the point of open-ing when the piston reaches the end of its stroke. For properoperation the valve… … Fig. 122. The method of securing lead with the Walschaert valve gearis shown in Fig. 122. The valve stem is not connected directlyto the eccentric rod but to a combining lever which is connectedto the crosshead. The eccentric rod is also attached to the com-bining lever, so that its swing is due…
Steam-engines
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