Notes and examples in mechanics; with an appendix on the graphical statics of mechanism; (1903)
Church, Irving P. (Irving Porter), 1851-1931 · New York, J. Wiley & sons; [etc., etc.] · leaf 104
ng will not occur ordinarily ifP is less than about one fifth of the total weight resting on thedrivers. 88. Locomotive Tractive Effort at Starting. Track Level.—When the train is once in motion the steam-pressure on thepiston in the latter part of the stroke is much smaller thanthe average, so… … Fig, 107 Fig. 109. call P, For instance, with one engine at its dead-centre, tlieduty of starting devolves on the other alone, which is then in themid-stroke position (nearly), its crank being vertically over (orunder) the driver-axle, and the horizontal component of the pullon the crank-pin is =…
