ES63868U - Explosion-proof special lampholder (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A NEW SPECIAL ANTI-DEFROST HOLDER, characterized in that it comprises, essentially, at least one first insulating base part carrying the two metal terminals of the lamp holder a second insulating piece mounted and joined on the previous and carrier, at its upper hollow end, the metallic bushing on which the lamp is to be threaded and a third insulating part that covers this second insulating part, being threaded on the aforementioned metal bushing and which adjusts, by being threaded in said way, on the upper peripheral contour of the first piece insulating base, with the particularity that, on the one hand, one of the metal terminals of the first insulating part is connected, through conductive sheets and by means of an intermediate spring, with a central sliding contact rod that traverses and comes guided vertically by the central hole of the second insulating piece, coaxial with the insulating base part, so that said rod, elastically seated on said spring and in electrical connection, through it, with the terminal in question, has its enlarged upper end that opens into the perforated bottom of the sleeve to enter elastic contact with the central terminal of the lamp while it is mounted and threaded inside its bushing, in order to ensure permanent contact between the aforementioned enlarged end of the rod and the central terminal of the lamp and, at the same time, the other terminal The metallic part of the first base part is electrically connected, through conductive sheets that are inserted inside the second insulating part, with the perforated metallic bottom of the metal socket lamp holder. (Machine-translation by Google Translate, not legally binding)