al diffi- engine are received culty has been, not so upon the same crank much in the production pin. The space in the of a working machine, upper end of the cylin- as in designing a motor der above the piston is which is at once effi- the explosion chamber, cient, economical, safe, with which are… … explosion chamber power, such as cream through the exhaust separating machines, valve, which is opened sewing machines, Ke by the slip cam. Dur- pumps, ventilating KF ing the following down- fans, watch maker’s stroke, the air in the machinery, light wood- cylinder below the pis- working machinery,…
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