Working model (scale 1:12) of Warner's patent, 1868, automatic windmill, arranged for pumping, with copper sump, built by J. Warner & Co., The Crescent Foundry, Cripplegate, London.
In this windmill, patented by Mr. F. Warner in 1868, the vanes yield as the pressure of the wind increases, and thus automatically adjust themselves to suit its force. The mill has 24 radial vanes, mounted between two rings, and each pivoted about its front edge so that the angle which it presents to the wind may vary. Levers on the ends of the pivots are connected with another ring which is attached to a rod, running through the centre of the axle, and connected with a balance weight which keeps adjusting the vanes to such an angle as to make the resultant pressure on them constant. A tail is provided for setting the wheel of vanes into the wind. The mill is mounted on a wooden tower and is arranged to drive a small pump from an eccentric on the axle. It is stopped by turning the vanes edgeways to the wind by means of a rod attached to the weighted lever.
Details
- Category:
- Motive Power
- Object Number:
- 1888-298
- Measurements:
-
: 43.3071 x 21.6535 x 27.5591 in.; 1100 x 550 x 700 mm
- type:
- windmill
- credit:
- John Warner and Co.
