Luminaire mounting device

Claim 2

A luminaire mounting device for attachment to the top of a tubular supporting pole comprising, in combination, an elongated externally threaded pipe adapted to be secured at one end to a luminaire and adapted to be inserted at its other end into the open top of the tubular supporting pole, support means secured at said other end of said threaded pipe extending transversely thereof, a first tubular wedge member surrounding said threaded pipe and engaging said transverse support means, a second tubular wedge member surrounding said threaded pipe and superposed on said first wedge member, the adjacent mating ends of said wedge members being inclined to the longitudinal axis of said threaded pipe so as to be in slidable wedging relation, said wedge members being formed on the outer surfaces thereof with circumferentially spaced bearing ribs extending longitudinally thereon, and an adjusting member threadably engaging said threaded pipe adjacent said second wedge member and adapted to rotatably engage the top of the tubular supporting pole, whereby turning said adjusting member on said threaded pipe toward said wedge members moves said wedge members into sliding wedging engagement with each other for forcing said wedge members in opposite directions and said spaced bearing ribs thereof into frictional engagement with the inner surface of the supporting pole.

Claim 3

A device as defined in claim 1, said bearing ribs having arcuate surfaces.

Claim 4

A device as defined in claim 2, said wedge members being generally elongated along said opposite directions whereby said mating ends thereof are in mutual contact along a substantial distance during relative movement thereof.

Claim 5

A device as defined in claim 3, said adjusting member being formed with an annular groove for receiving the top edge of a supporting pole.

Claim 6

A mounting device as defined in claim 4, and means for locking said adjusting member in adjusted position on said threaded pipe.

Claim 7

A device as defined in claim 1, and wire clamp means connected to said threaded pipe adjacent the bottom thereof.

Claim 8

A device as defined in claim 1, said wedge members having outer wall surfaces parallel to the longitudinal axes thereof for fitting along the interior of cylindrical poles.

Claim 9

A device as defined in claim 1, said wedge members having outer wall surfaces inclined to the longitudinal axes thereof for fitting along the interior of tapered poles.

Claim 10

A luminaire comprising, in combination, a lighting fixture having a supporting base member formed with a mounting socket, an elongated externally threaded pipe secured at one end to said mounting socket and adapted to be inserted at its other end into the open top of a tubular supporting pole, support means secured at said other end of said threaded pipe extending transversely thereof, a first tubular wedge member surrounding said threaded pipe and engaging said transverse support means, a second tubular wedge member surrounding said threaded pipe and superposed on said first wedge member, the adjacent mating ends of said wedge members being inclined to the longitudinal axis of said threaded pipe so as to be in slidable wedging relation, said wedge members being formed on the outer surfaces thereof with circumferentially spaced bearing ribs extending longitudinally thereon, and an adjusting member threadably engaging said threaded pipe adjacent said second wedge member and adapted to rotatably engage the top of the tubular supporting pole, whereby turning said adjusting member on said threaded pipe toward said wedge members moves said wedge members into sliding wedging engagement with each other for forcing said wedge members in opposite directions and said spaced bearing ribs thereof into frictional engagement with the interior surface of the supporting pole.

Claim 11

A luminaire comprising, in combination, a lighting fixture having a supporting base member formed with a mounting socket, an elongated externally threaded pipe secured at one end to said mounting socket and adapted to be inserted at its other end into the open top of a tubular supporting pole, support means secured at said other end of said threaded pipe extending transversely thereof, a first tubular wedge member surrounding said threaded pipe and engaging said transverse support means, a second tubular wedge member surrounding said threaded pipe and superposed on said first wedge member, the adjacent mating ends of said wedge members being inclined to the longitudinal axis of said threaded pipe so as to be in slidable wedging relation, said wedge members being formed on the outer surfaces thereof with circumferentially spaced bearing ribs extending longitudinally thereon, and an adjusting member threadably engaging said threaded pipe adjacent said second wedge member and adapted to rotatably engage the top of the tubular supporting pole, whereby turning said adjusting member on said threaded pipe toward said wedge members moves said wedge members into sliding wedging engagement with each other for forcing said wedge members in opposite directions and said spaced bearing ribs thereof into frictional engagement with the interior surface of the supporting pole.