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Individual
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Individual
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Publication of ES298109A1publicationCriticalpatent/ES298109A1/en
Security lock with electric alarm devices, characterized by having a sliding lock with holes in the top and bottom as well as a corresponding latch and several eccentrics and placed inside the lock, electrical alarm contacts, carrying in the drum, where the key is inserted, housed a numbered, rotating disc, placed on the outside of the door, which takes the form of mushroom and whose upper part or stem, that which is fitted to the door, ends in shape helical, giving rise to the one that when closing and after turning the key, also rotates the numbered disc, composed of one or more numbers, series or letters, causing the lock of the latch and in consequence, preventing the slide of the bolt, by means of the eccentric that the bolt bears, which in case of opening or forcing the lock, even if it is with the key itself, without having changed the numbers placed on the closing moment of the lock, turning to the contrary, they make work to the contact switch, which closing the circuit, puts into operation the alarm systems, constituted by sirens, bells or similar. (Machine-translation by Google Translate, not legally binding)
ES0298109A1963-04-081964-03-28Security lock with electric alarm device (Machine-translation by Google Translate, not legally binding)
ExpiredES298109A1
(en)
Latch lock or lock that can not be removed from the covering element in the case of a breaking attempt. (Machine-translation by Google Translate, not legally binding)
Improvements in, or related to, key-operated locks, which incorporate electrical switching means. (Machine-translation by Google Translate, not legally binding)