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Priority to ES0010945UpriorityCriticalpatent/ES10945Y/en
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A thermodynamic windlass, characterized by the fact, of being formed by a disk or circle of light material, capable of rotating around an axis, central support, which disc has around it, or periphery, a series of radial vanes, slightly inclined uniformly, with respect to the plane of the disc, in the same circular direction; These paletea have the purpose of taking advantage of the upward current of heated air that occurs above any heating source, preferably in those already existing in shops and, in particular, at the top of coffee machines called espresso coffees. and bars, which current by reaction will cause the rotation of the circle or disc. (Machine-translation by Google Translate, not legally binding)