Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 352
e wrist-plate is in mid position, the ex-haust valve edges 4 are adjustedequally in both exhaust valvesto the exhaust-port edges 5.When the exhaust valves haveno lap, as is often the case, thenthe edges 4 and .5 coincide for•both the exhaust valves when the wrist-plate is in mid position. The… … Fig. 387. 336 STEAM-ENGINE THEORY AND PRACTICE.
Steam-engines
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