Wolff, Alfred R · New York, J. Wiley & sons · leaf 82
rim of the fixed curb; and bythese means, whenever the fan M is turned, it movesthe head of the mill- slowly round. It will be readily EUROPEAN WINDMILLS. 65 seen, by examining the manner in which the sails of theauxiliary windmill are constructed, that, when the planeof these sails is in the… … Fig. 8. n+v^ mill, and turns them round ; so that, on .whatever side thewind may come, the motion conveyed to the machineryof the cap brings the main shaft again into the directionof the wind. Windmill Governors. The variations in the intensity of the wind being con-siderable, often so within a…
Windmills
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