Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 156
534. ROTARY PUMP OR MOTOR.— Can be run in either direction. The shell andwing drum are eccentric. The wings are guidedby projections running in a concentric groovein each head. … 535. GARY ROTARY PUMP.—A rotat-ing drum concentric with the outer fixed cylinderand a fixed heart-shaped^cam groove in which thesliding wings are guided. A stop, E, closes thesuction and force side of the chamber. The formof the outer cylinder wall is spiral.
Mechanical movements
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