US1603503A

US1603503A - Lighting fixture

Info

Publication number: US1603503A
Application number: US679291A
Authority: US
Inventors: Arras George; Dwight E Worrell
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-12-08
Filing date: 1923-12-08
Publication date: 1926-10-19
Anticipated expiration: 1943-10-19

Description

Oct. '19 1926. j 1,603,503

G. ARRAS ET AL LIGHTING FIXTURE Filed Dec. 8. 1923 "61:01:90 firm/5,

a) jwzjgh/tfl worm ll 32 Patented Oct. 19, 1923.

UNITED STATES raise PATENT OFFICE.

LIGHTING FIXTURE.

Application filed December a, 1923.

This invention relates to a lighting fixture but more particularly to a globe or shade support, and the principal object of the invention is to provide a device of this kind in which a certain adjustment is possible for holding globes or shades of different sizes. A further object of the invention is to provide an improved holder for the rim of a globe or shade, and a still further object is to provide a step by step adjustment for engaging shades of approximately the same size or of different sizes. Other objects will appear hereinafter.

In the accompanying drawings, Fig. 1 is a side elevation of a holder constructed in accordance with the principles of this invention; Fig. 2 is a view of the bottom thereof; Fig. 3 is an enlarged detail view taken on the line 33 of Fig. 1; Fig. 4 is a section taken on the line 44 of Fig. 3; Figs. 5 and 6 are sectional and bottom views of a modifled form of holder; and Fig. 7 illustrates a three-position locking holder.

In supporting the globe or shade of a lighting fixture it is cimtomary to have a canopy 1 suitably supported for enclosing the lamp socket and electrical connection, at the extremity of which is an enlarged flange 2. A shade or globe 3 for the fixture has a flange 4 by means of which it is supported. On the inside of the supporting flange 2 are opposite projections 5, as shown in Fig. 2, comprising a bent extremity of a strip of spring material 6 which is attached to the flange 2, and the extremities are bent outwardly so that they will be sufiiciently rigidbut still are capable of some spring action.

Opposite the two fixed. projections 5 is an adjustable and variable stop member 7 in the form of a cam, pivoted to a plate 8 attached to the outside of the canopy flange 2 and extending inside of the flange through a slot 9. The outer circular edge of the plate 8 is formed with teeth 10 turned upwardly. The outer extremity 11 of the stop member is bent to extend outwardly and over the teeth 10 of the plate with

opposite recesses

12 and 13 in the bent extremity to receive a spring 14, one end of which turns about a cam pivot 15 and stop or looking member 7. The intermediate portion of this spring 14 is adapted to engage the teeth 10 and as the teeth are inclined in one direction, the bent extremity 11 and the projecting end of the spring 14 provide a finger hold connection for advancing the cam portion of the locking Serial No. 679,291.

member 7 into the canopy 2. In order to turn the member 7 in the opposite direction, it is necessary to raise the spring member 14 out of engagement with the teeth whereby the member 7 can be turned freely in either direction.

lVith this construction it is obvious that a shade or globe may be set into the canopy with its flange in engagement over the spring ends or projections 5 and then the holding member 7 may be quickly advanced and properly adjusted by means of the outer extremity 11 so that it engages the opposite side of the flange of the globe or shade and may even press the globe yieldingly against the resilient supports 5.

In order more positively to engage the flange of a globe or shade, a canopy flange 16 may be formed with short radial slots 17 through which a screw 18 extends for engaging an adjustable holder 19. This holder comprises an eye 20 at one end for engaging in the neck or head of a globe or shade and a resilient straight portion 21 for engaging within the opening of the globe. The slots 17 permit an adjustment of the holder members, and a fastening nut 22 is threaded on the screw 18 for fastening the holder in any adjusted position. The locking member in this case is in connection with a holder 23 adjustably attached to the canopy and somedown edge 32 to constitute an improved fin-' ger hold portion.

In this construction a globe or shade is inserted in the holders 19 which are sufficiently resilient to engage the edge of the shade, and the opposite edge is pressed over the holder 23. The

locking member

26 or 28 is then turned into engagement with the adjacent neck of the shade, and the resilience of the parts is such that the notch of the pivoted holding member will spring into place and hold the shade yieldingly in position. Any necessary adjustment or variation can be made by means of the slots 17 and if a locking member 28 with a plurality of notches is used, a variety of sizes of globes can be accommodated without the slotted adjustments.

e claim:

1. In a fixture holder, a canopy, a cam device pivoted on the outside of the canopy and extending through it, a toothed segment at the outside of the canopy, and a spring pressed arm connected with the cam shaped device and releasably engageable with the teeth of the segment.

2. In a shade or globe holding device, a

through the perforation, an arm on the cam member bent over the toothed. portion of the plate, and a spring movable in the arm of the cam member and adapted to engage the teeth of the plate for holding the cam in any adjusted position.

GEORGE AREAS. DWIGHT E. VVOR-RELL.