Adapter for screwing socket i.e. E14 socket, of electric bulb i.e. filament lamp, with E27 socket of another electric bulb, has base contact projecting over threaded sleeve outer end for making contact with middle contact in screwed socket

摘要

The adapter has a double-walled threaded sleeve (GM1), an inner sleeve (a1) with an internal thread (a11) screwable with a socket (1.1) of smaller diameter and an outer sleeve (a2) with an external thread (a21) screwable into an E27 screwed socket. The outer sleeve is connected to the inner sleeve in a fixed and conducting manner. The socket (1.1) has a base contact (4) projecting over an outer end of the threaded sleeve for making contact with a middle contact in the screwed socket and between an end of the outer sleeve and pole elements arranged at a bottom of the screwed socket.