Elevating apparatus particularly for the canopy of a lamp standa

Details Elevating apparatus particularly for the canopy of a lamp standa Elevating apparatus particularly for the canopy of a lamp standa

1985-10-22

1987-04-07

Cuchlinski, Jr., William A.

Illumination

Supports

Adjustable light support

74 8915, 248320, 362431, F21S 312

Patent

active

046565698

ABSTRACT:
An assembly for elevating particularly a lamp canopy on a lamp standard comprises a screw arranged longitudinally of the standard and rotatable at a lower end to drive the canopy up and down the mast. The screw is located in a channel formed by flanges exterially of the mast. Nuts separate from the canopy can be moved up and down the screw to support cables to the lamp and to stabilize the screw. The channel can be covered by cover plates applied to the channel and carried along the channel by the raising canopy.

REFERENCES:
patent: 348226 (1886-08-01), Mayhew
patent: 428723 (1890-05-01), Jeffers
patent: 3728903 (1973-04-01), Haller
patent: 3858452 (1975-01-01), Gatland
patent: 4237530 (1980-12-01), Murray et al.

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