Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 177
. —The wind pressure is greater against the hollowside of the curved blades than against the other side.Hence the motor motes. ^ ^X> V 615 FEATHERING WINDMILL.—The lightinted blades are forced outthe wind, and the mill goes. )y % jointed blades are forced out when their edge catches i66 AIR… … 617. WINDMILL OF OUR GRAND-FATHERS, with reefing sails. A few still inuse in the United States.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.