nthat of the crank-shaft, in the requisite proportion, or to modifythe form and proportions of the steam cylinders and their appen-dages, so that the number of strokes per minute should be aug-mented, so as to be equal to the necessary number of revolutionsper minute of the screw-shaft. Both these… … 80. In geared engines the cranks are formed on one shaft, and the screwfixed upon another, the directions of the two shafts being parallel. On thecrank-shaft is fixed a toothed-wheel, which works in a smaller one, called a pinion, fixedon the screw-shaft. Thus in fig. 24, A may-be regarded as the…
Steam-engines · Steam-navigation · Locomotives
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