Wolff, Alfred R · New York, J. Wiley & sons · leaf 138
AMERICAN WINDMILLS: OTHER TYPES. 115 fulcrum at G, and coupled at its upper end by the link 6to the rudder. The fulcrum is supported on a bracket,N, on the frame B of the mill. This lever resists theaction of the wind on the wheel until the pressure is
Windmills
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