Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 353
Fig. 387. 336 STEAM-ENGINE THEORY AND PRACTICE. … Fig. 388. Fig. 388 gives a wrist-plate diagram. OD and OB show the ex-treme positions of the levers, and OC mid position. This is a case in which a double reversal of stresstakes place in the levers and pinsduring each forward and back-ward stroke of the wrist-plate.This is shown by the passing…
Steam-engines
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