Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 266
otions as transmit a motionto the valve-stem from an arm one end of which moves in aclosed curve and which has another point constrained to movein either an open or a closed curve by its connection with theframe through levers or slides. The closed curve describedby the first point is usually a… … Fig. 191.
Mechanical engineering · Steam power plants
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