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DE VALLESCAR Y FONT JOSE
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DE VALLESCAR Y FONT JOSE
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Priority to ES0066563UpriorityCriticalpatent/ES66563Y/en
Publication of ES66563UpublicationCriticalpatent/ES66563U/en
Application grantedgrantedCritical
Publication of ES66563YpublicationCriticalpatent/ES66563Y/en
Improved twin hinges, which are characterized to be formed, each of the two that form the system, two flat arms, one horizontal and one vertical, linked together by an axis that solidly fixed at the end of vertical crosses the end of the horizontally and is fixed to a spiral spring contained in a drum integral with the same horizontal arm, in which the periphery of said spring is fixed, all in such a way that the spring permanently tends to keep both arms in a perpendicular position. (Machine-translation by Google Translate, not legally binding)