A portable combined plug and socket for electrical purposes

  • Inventors:
  • Assignees: Barnard Alfred Spaull
  • Publication Date: June 16, 1927
  • Publication Number: GB-272331-A


272,331. Spaull, B. A. May 25, 1926. Plug couplings; needlepoint couplings.-The socket part 7 of a plug-and-socket coupling is externally screwthreaded and formed with a point 8 that pierces the insulation of a conductor 10 and makes contact therewith when the socket is screwed down. The insulated wire is held in a recess 11 and is gripped by the shoulder 9 above the point 8 which enters a recess 15. The lead to the plug member 1 is similarly held and connected. The lower part C carrying the recesses 11 may be centrally pivoted to the part B carrying the sockets, so that it cam be turned to facilitate insertion of the leads. A nut on the pivot is tightened when the parts are in their working position. The heads of the sockets 7 may be accommodated in recesses in the insulating body A of the plug member.




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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    US-2682649-AJune 29, 1954Isaac S BlonderElectrical connector