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Individual
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Individual
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Priority to ES99365UpriorityCriticalpatent/ES99365U/en
Publication of ES99365UpublicationCriticalpatent/ES99365U/en
A lifting pin and automatic closing for doors and the like, characterized in that the half integral of the axis of rotation is cut in helix in the part thereof that surrounds said axis of rotation, and the other half of the pernio, female part, it has the edge of its bushing also cut helically correspondingly, both helical parts being applied to each other in the closed position of the door and ascending by sliding on one another when the door is opened which is also raised, and descending automatically and smoothly as soon as the opening thrust ceases due solely to the action of gravity. (Machine-translation by Google Translate, not legally binding)
ES99365U1963-05-111963-05-11A lifting bolt and automatic closing for doors and similar (Machine-translation by Google Translate, not legally binding)
PendingES99365U
(en)
Closure mechanism by automatic combination applicable to all kinds of doors and furniture. (Machine-translation by Google Translate, not legally binding)