Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 239
counterbalances was applied to many Worthing-ton pumping-engines of large size. The valve was attached 202 MECHANICAL ENGINEERING OF POWER PLANTS. by a link and pin-joints to a piston. This piston fitted avertical cylinder directly over the valve, the area of the pistonbeing so calculated that it… … Fig. 169. and forth. This principle of counterpoising pressure bymeans of a piston has also been used in massive verticalengines to provide for the weight of the valves and their rodsand to keep the strain always in one direction. It can alsobe similarly used to counterbalance the weight of the…
Mechanical engineering · Steam power plants
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