Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 209
758. ELECTRIC FAN.—The motor isconcealed in the central chamber, the middlesection of which revolves with the arms. J … 759. ELECTRIC-DRIVEN FAN, Edison model. Fan on same shaft with the arma-ture. Ball bearings. Runs with four or-dinary batteries.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.