Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 154
th reference to a two-eccentric gear is,that the object is to have only one eccentric at a time operating thevalve. In the early development, this was accomplished by usinggabs or gab-hooks, which could be brought in contact with the valverod at the pleasure of the operator. For instance, if the… … Fig. 50. Early Reversing Device by-Means of One Eccentric 52 VALVE GEARS in the direction indicated by the arrow at E\. To reverse the engine,Bi would be disengaged and B2 placed in connection with V. Thevalve would then be operated by the eccentric E2, and the enginewould run in the direction…
Indicators for steam-engines · Steam-engines
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