Creighton, William Henry Paul, 1859- · New York, J. Wiley & sons; [etc., etc.] · leaf 87
is gradually lessened by theinternal molecular friction in the spring as well as the variousexternal resistances. The movement of the piston of an engine is very irregular,but the movement of the crank is generally uniform. Equaldistances along the circle of the crank-pin then measure equalperiods… … Fig. 38. Steam Pressure 105 PoundsRevolutions 250Spring 60
Steam-engines · Heat-engines
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