Abstract: A high voltage, anti-corona connector defines similar interengaging structures of varying sizes which both retain the plug in the socket and provide substantially air-tight, anti-corona seals. The plug is a unitarily formed structure fabricated of a resilient dielectric material which defines an elongate contact receiving barrel having a plurality of spaced apart circumferential ribs of distinct sizes disposed on its outer surface. The socket includes a single contact disposed within a concentric aperture having at least one circumferential recess. One of the ribs of the plug seats within the socket recess and tightly retains the plug therein, the remaining ribs providing substantially air-tight seals to minimize arcing and corona discharge. Intimate seals between the face of the socket and a shoulder region of the plug adjacent the barrel as well as the end of the barrel and the internal end wall of the socket also contribute to the performance of the high voltage plug and socket of the present invention.

Abstract: A high mast lighting system for highways, airports, parking lots and the like of the type in which light bulbs are mounted on a ring shaped platform of a diameter such that it surrounds the mast and can be raised and locked into a lighting position at the top of the mast by operation of cables extending to the base of the mast. The invention is particularly directed to a novel locking and supporting mechanism for support of the lighting ring platform at the top of the mast independent of its lift cables and in which the locking pawls supporting the ring can be disengaged from their supporting position by operating the lift cables from the base of the mast to permit lowering of the ring for maintenance such as a change of bulbs.