CASS/EE'S MAGAZINE. 434 … FIG. 24. — THE FOOS ENGINE. BUILT BY THE FOOS GAS ENGINE CO., SPRINGFIELD, OHIO. accordingly, will produce an igniting in the shape of a half circle as shown at spark once for every two such revolu- Xin Fig. 25, bringing the points Xand tions. Y together at every revolution of elec- The explosion…
Engineering
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