Motor-car principles; the gasoline automobile (1910)
Whitman, Roger B. (Roger Bradbury), 1875-1942 · New York, London, D. Appleton and Co. · leaf 52
24 MOTOR-CAR PRINCIPLES side in following the turning of the crank shaft. A tight joint is maintained between it and the cylinder walls by cast-iron piston rings, which are of square or rectangular cross-section, … Fig. 7. — A, Piston; B, piston in section. split so that they may spring open, and fitted into grooves cut around the piston. They are of such shape that their tendency to expand keeps them pressed against the cylinder walls, but being split, their elasticity prevents their binding ; they fit the…
Automobiles
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