Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 243
173.plan has a grave objection from the difficulty that wear pre-vents the distance between the roller or yoke surfaces remain-ing always the same as the net diameter of the cam at everypoint. If the roller or yoke does not touch the cam con-tinuously, there is a jar and shock followed by wear at… … D Fig. 174.and- groove. The difficulty is that the inside surface of thegroove drives the roller on the lifting stroke, and the outsidesurface of the groove drives the roller on the reverse stroke.
Mechanical engineering · Steam power plants
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