Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 242
e of such valve- >y^ /^ / stem, or the cam may bear against the end ^^^^^ ^ of a pivoted lever which actuates the stemiG. 171. (Fig. 176). In the other arrangement the roller fits in a groove in the side of a cam-plate. The outside cam-motion works the valve in one directiononly; for the return… … 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
Mechanical engineering · Steam power plants
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