Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 242
Fig. 172. to that caused by the cam against the first roller. This out-side cam arrangement has the advantage that the rolleralways turns in the same direction. The two-roller or yoke … Fig. 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…
Mechanical engineering · Steam power plants
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