hese holes run in the direction of the tube, the passagethrough the tube is opened; but when the passage through thecock is placed at right angles to the tube, then the sides of thetube stop the ends of the passage in the cock, and the passagethrough the tube is obstructed. The simple cock is… … XtbzW THE STEAM ENGINE. through, the tube is stopped; but when the cock is turned fromthat position through a quarter of a revolution, as in fig. 22, thenthe passage through the cock takes the direction of the passage
Steam-engines · Steam-navigation · Locomotives
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