Section 95.—WINDMILLS AND FEATHERING WHEELS.
(See also [p. 218].)
[2556]. Feathering paddle wheel, or tide wheel. The three floats are maintained vertical by spur wheels on their spindle ends, which gear with idle pinions driven by a fixed central spur wheel of same size as those on the floats.
[2557]. Wind turbine. The vanes are formed as [No. 1967], to receive the wind parallel to the axis.
Windmills are fitted with automatic regulating devices to adjust their angle area and direction to the force and direction of the wind.