| 摘要 |
A windmill having a rotatable vertical shaft and a rotor secured thereto. The rotor has a plurality of base circumferential wings for collecting the wind. Each wing includes a vertically extending cylindrically curved surface, preferably a half cylinder, and top and bottom end plates. Each curved surface has a plurality of vertical metal reinforcing strips on its concave side extending from top to bottom. These reinforcing strips strengthen the windmill and improve its efficiency. Rotation of the shaft and motor generates power which may be used to drive an electric generator, an air compressor, or other energy transducer devices.
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