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Individual
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Individual
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Priority to ES281181ApriorityCriticalpatent/ES281181A1/en
Publication of ES281181A1publicationCriticalpatent/ES281181A1/en
New mechanism for the automatic activation of doors, characterized in that the axis of the closing spring is independent of the axis of rotation of the door, the axis of the closing spring being in permanent engagement with a rack carved on a carriage which, driven by the axle when the door rotates, when it opens, it causes the spring shaft to rotate, so that the spring receives the precise tension to force the door to go to the closed position. (Machine-translation by Google Translate, not legally binding)
ES281181A1962-09-291962-09-29New mechanism for the operation of doors (Machine-translation by Google Translate, not legally binding)
ExpiredES281181A1
(en)