Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 77
ton is at the beginning of its stroke(see Fig. 52). The lead to exhaust is always greater than the leadto steam admission (Fig. 52). The way in which these various functions are fulfilled for boththe forward and backward strokes of a double-acting engine may beseen from the Figs. 51-54. Fig. 51… … THE SLIDE-VALVE. Si just opening the ste<am-port to admission of steam. This portopening is the lead. Fig. 53 shows the slide-valve at the end of its stroke. It doesnot necessarily open the steam-port fully for admission, but it
Steam-engines
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