Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 206
vement of the valve actually taking place until the deliveryof the blow. This is effected bv simply constricting a portion of this passage d, making it ofsuch small size that the passage through it of the steam necessary to move the valve shall bedelayed until the piston has had time to pass on and… … Fuis. 3-G.- I-ongitudinal section sliowing valve in difTerentpositious. 190 DRILLS, ROCK.
Mechanical engineering
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