Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 637
hrough which revolves the propeller-shaft. Under a dome which rests on the stationary diskis another disk, which is secured to the propeller-shaft and revolves with it, and which is providedwith an annular piston with ring-packing. Water is forced between the stationary and revolving«t»i dfe^8… … 3525. 3526.
Mechanical engineering -- Dictionaries
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