Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 539
r cylinder B, from which a portion is cut off to form a groove or recess sufficiently deep to re-ceive within it each piston as it moves past. The diameter of the small cylinder is just one-third thatof the drum. The axles of both are continued through one or both sides of the case^and the…
Mechanical engineering
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