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.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
