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Priority to ES1974200071UpriorityCriticalpatent/ES200071Y/en
Publication of ES200071UpublicationCriticalpatent/ES200071U/en
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Publication of ES200071YpublicationCriticalpatent/ES200071Y/en
Improved lifting device, characterized essentially by being constituted by a triangular cam shaft articulated to a frame and operated by a lever, whose cams act on rectangular support blocks, which are moved by guides of said frame; in such a way that when rotating the external lever there is a rotation in the axis of cams, which move said cues along the guides of the frame; recovering said tacos, when you stop acting, you cams by the action of recuperating springs. (Machine-translation by Google Translate, not legally binding)