Illumination – Supports – Adjustable light support
Patent
1987-04-06
1988-03-29
Cross, E. Rollins
Illumination
Supports
Adjustable light support
362287, 362242, F21M 1800
Patent
active
047348380
ABSTRACT:
A lighting socket assembly (16) is mounted on an upper end of an L-shaped slide tube (A), such as a brass tube. A one piece, plastic clutch block (30) defines a cylindrical bearing surface (32) integrally therewith. The L-shaped tube lower portion (10) is slidably and rotatably received in frictional engagement with the cylindrical bearing surface such that the tube is slidable and rotatable therein. A threaded member (40) is threadly received in a bore (38) in the clutch block. A smooth inner surface (48) of the threaded member selectively engages the received L-shaped tube to adjust the degree of frictional engagement between the clutch block and the tube. By selectively advancing and retreating the threaded element with a manually graspable portion (46) rotational and vertical adjustment of the lamp assembly relative to the clutch block is facilitated. The clutch block is supported on a vertical rod or tube (60) which is mounted to a base (62). A spacer member (70) defines a pair of vertical passages (72, 74), one of which receives the support tube and the other of which receives the slide tube.
REFERENCES:
patent: 2950892 (1960-08-01), Rick
patent: 4386393 (1983-05-01), Pike
patent: 4449172 (1984-05-01), Warshawsky
patent: 4459650 (1984-07-01), Pike
patent: 4484255 (1984-11-01), Warshawsky
patent: 4605995 (1986-08-01), Pike
I. W. Industries Catalog No. 1883, pp. 68-71.
Cross E. Rollins
Pike Machine Products
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