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Adjustable windmill

  • US 4,111,601 A
  • Filed: 02/02/1977
  • Issued: 09/05/1978
  • Est. Priority Date: 02/02/1977
  • Status: Expired due to Term
First Claim
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1. A wind wheel adapted to being driven by the wind, comprising means defining an axis about which the wheel is adapted to rotate, a pair of radially spaced apart segmented rims, a set of generally equally spaced, radially mounted blades equal in number to the segments of each of the rims mounted inside the inner rim and having a front wind engaging surface oriented with respect to the axis to cause the wheel to rotate when subjected to wind directed generally along the axis, a plurality of interconnected movable vanes, one corresponding to each blade and each segment of each rim, mounted on the wheel outside the blades and a governor mechanism including a number of weights equal to the number of blades and connected to the vanes for sensing the speed of the wheel and adjusting the orientation of the vanes with respect to the axis to change the efficiency of the wheel in inverse proportion to its speed.

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