US1520516A - Lighting fixture - Google Patents

Description

7 1,520,516 G.. B. THOMAS LIGHTING FIXTURE Filed June 1'6, 1923i "WENTOR GEORGE E THaMHS Patented Dec. 23, 1924.

PATENT OFFICE.

GEORGE E. THOMAS, 015 BRIDGEPORT, CO ELECTRIC COMPANY, OF BRIDGEPORT,

NECTICUT.

LIGHTING Application filed June 16,

To aZZ whom it may (Jo-acorn.

Be it known that l, Gnonon P). THOMAS, a citizen of the United States of America, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Lighting Fixtures, of which the following a specification. i

lily invention relates to lighting fixtures, and particularly to ceiling or wall fixtures, the object of my invention being to provide an improved switch installation for fixtures of this type.

In the accompanying drawings- Fig. 1 is a vertical section through a ceiling fixture in which the invention is embodied in one form;

Fig. 2 is a broken side elevation of the switch; and

Fig. is a section on the line 3--3, Fig. 2.

In the form here shown the present in stallation comprises the usual outlet box 5 with central stud 6 and lateral lugs 7, to which the frame 8 of the canopy 9 is secured as usual by the lock nuts 10 on the stud (i, and by the screw bolts 11 passing through the base flange of the canopy and taking into the tapped lugs T of the outlet box. The

all of the box 5 is pierced as usual at 12 to accommodate the conduit 13, through which the lead wires let and 15 enter the box.

lvTOUlltGtl in the neck of the canopy 9 is a lamp socket 16 to receive the lamp 17. A shade 18 may be mounted in the usual fashion in the open end of the canopy, where itis secured by set screws 19. The lead 15 is connected to a suitable wire terminal, not shown, on the socket 16, while the lead ll is soldered at 20 to the pig-tail connection 21 leading from the switch A second pig-tail connection 23 from the switch is connected to the socket 16, thus establishing the lamp circuit through the switch 22.

The nature of the switch mechanism contained within the insulating body of the switch is immaterial, but is preferably operated by a pull chain 2 1.

To mount the switch on the canopy 9 I secure to the base of the switch a frame plate 25 having its end 26 offset to overlie the nose NNECTICUT, ASSIGNOR TO THE BRYANT CONNECTICUT, A CORPORATION OF CON- FIXTURE.

1921. Serial No. 477,955.

of the switch 22, through which the pull chain 24 emerges. A ferrule 27, riveted to the frame end 26 by spreading the end of the ferrule, affords a guideway for the chain 24:. The ferrule is provided with an abutment shoulder 28 and an externally threaded stem 29. The canopy 9 is suitably punched at 30 to permit the threaded stem 29 to pass therethrough, while the shoulder 28 bears against the inner face of the canopy. A guide funnel 31, internally threaded, screws upon the stem 29 of the ferrule and engages the wall of the canopy 9 between its inner end and the shoulder 28 on the ferrule, thus rigidly securing the switch in position.

The particular construction of the frame and of the switch body may be variously modified, but I prefer to utilize a construction such as illustrated in my copending application Serial No. 160,920, filed April 13. 1921, since the structure is compact and well suited to the restricted space available within the canopy 9 for the accommodation of the switch body and wire connections.

1. An electric lighting fixture comprising a canopy, a lamp socket mounted therein, and an independent switch housed within the canopy, said switch comprising an insulating body a supporting bracket lying against and mounted on the exterior of said body, and means exterior to the canopy and engaging a bracket element to mount the switch on the canopy, the latter being pierced to accommodate said switch-mounting devices.

An electric pull switch having a laterally extending pull member for operating the switch, a supporting bracket exteriorly secured to the switch body and apertured to permit the pull member to pass therethrough, a threaded hollow stud projecting from said bracket and through which the pull member passes, together with a bell mouthed guide nut on said stud adapted to clamp the bracket to a pierced support through which said stud passes.

An electric pull switch having an in sulating body, a pull member emerging from the side of said body, a supporting bracket secured against the bottom face of said body and having an offset extension lying against said side of the body and apertured to permit the passage of a pull member therethrough, a hollow stud carried by said extension and through which the pull member passes, together with a clamping nut on said extension for mounting the switch on a sup- 10 port apertured to accommodate said stud.

In testimony whereof I have signed my name to this specification.

GEORGE B. THOMAS.

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