Method of manufacturing electric lamps bases for carrying out said method and lamps thus obtained
Abstract
Abstract A METHOD OF MANUFACTURING AN ELECTRIC LAMP OF WHICH THE BULB HAS FORMED IN ITS NECK PORTION A PAIR OF SEPARATE GROOVES EXTENDING IN A COMMON TRANSVERSE PLANE. ACCORDING TO SAID METHOD EACH LAMP BASE IS MADE OF A SUITABLE FLEXIBLE MATERIAL BY FORMING IN THE BASE SKIRT ON THE ONE HAND A PAIR OF INTERNAL ANCHORING BEADS ADAPTED TO FIT INTO THE GROOVES OF THE BULB NECK AND ON THE OTHER HAND ONE OR TWO LONGITUDINAL SLITS. THEN, THIS BASE IS FITTED TO THE BULB NECK BY MOMENTARILY EXPANDING THE PORTIONS OF THE BASE SHIRT WHICH ARE FORMED THEREIN BY SAID SLIT OR SLITS, SO THAT THE INTERNAL ANCHORING BEADS OF SAID SKIRT CAN FIT INTO THE GROOVES OF THE BULB NECK. FINALLY, THE EDGES OF THE LONGITUDINAL SLIT OR SLITS FORMED IN THE BASE SKIRT ARE SEALED TOGETHER. THIS DISCLOSURE IS ALSO CONCERNED WITH LAMP BASES DESIGNED FOR CARRYING OUT THE MANUFACTURING METHOD SET FORTH HEREINABOVE, AND WITH ELECTRIC LAMPS MANUFACTURING BY CARRYING OUT THIS METHOD.
Inventors
- 👤 Jean Besacier
Bibliographic Details
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