US1730255A - Ceiling canopy and extension - Google Patents

Description

Oct. 1, 1929. A. FL' WAKEFIELD 1,730,255

CEILING CARQPY AND EXTENSION Filed Aug. 23, 1924 INVEN TOR. I

WZZerf/T'h aAefzfe/d BY ATTORNEYS Patented Get. 1, 1929 UNETEQ STATES PATENT @FFICE ALBERT F. WAKEFIELD, OF VERMILION, OHIO, ASSIGNOR To THE F. W. WAKEFIELD BRASS COMPANY, OF VERMILION, OHIO, A CORPORATION OF OHIO CEILING CANOPY AND EXTENSION The present invention relates to lighting fixture construction, and more particularly to suitable construction of the ceiling canopy and a detachable extension therefor particularly adapted for use over exposed ceiling boxes and exposed ceihng conduits. Another object is the provision of a suitable mounting for the pull switch mechanism where individual control of the light is desired. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claim.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing Fig. 1 is a vertical central section through the canopy and extension; Fig. 2 is a fragmentary side elevation of a portion of the canopy and extension; Fig. 3 is another fragmentary elevation of a portion of the canopy and extension; Fig. 4: is an elevational view of the switch mounting; and Fig. 5 is a perspective View of the switch mounting clip.

The present ceiling canopy and extension consists of a ceiling canopy 1 of the usual inverted bell shape, having a vertical flange 2, with a rolled edge 3, or the like. At the bottom the canopy terminates in a heavy an nular portion 4 through which slides the supporting tube 5, held in place by a set screw 6. A threaded nipple 7 is mounted in said tube and is provided with a link union 8 at the bottom and an open-sided, threaded union 9 at the top, the nipple being secured in place by the union in the usual manner. The canopy also has a bushed aperture 12 near the bottom for the switch cord 10, and in the upper flange is provided with a punched knockout 11.

For use on a ceiling with exposed outlet boxes, or conduits, the canopy is supplied with a detachable extension 15 consisting of a sheet metal cylinder adapted to fit snugly within the vertical flange 2 of the canopy, as

Application filed August 23, 1924. Serial No. 733,827.

best shown in Fig. 1. This canopy is provided withan aperture 16 near thelower edge adapted to bealigned with the knockout 11 in the flange 2. The canopy is also provided with a series ofv twist-outs 17 cut through the metal to provide openings for exposed conduits or wiring, these twist-outs being spaced at 90 degrees about the extension and three being provided. Below the twist-outs are a second series of double-cut semi-circular twist-outs 18 for conduits, or the like, and these are spaced about the extension, as are'the twist-outs 17, so as to provide for wiring in three directions if neces-- sary.

The canopy and extension also provide room for the mounting of a pull switch20, having the usual switch cord 10, this switch being supported on the tube 5 by means of a supporting clip 21 of special design. As best shown in Fig. 5, such clips consist of a piece of sheet metal having a horizontal ear 22, with an aperture 28 adapted to be clamped between the top of the tube 5 and the union 9, (see Figs. 1 and 4E), and a second ear 24 that lies in a plane at right angles to that of the ear 22 and is furthermore twisted through a similar angle, so as to be ofiset from said ear 22, as well. Ear 2 1 likewise has an aperture 25 adapted to fit over the threaded extension 26 of the switch to which it is clamped by a nut 27 so that the switch is held with the extensions 26 and the operating end 28 in the desired horizontal position. The openings 28 and 25 will preferably be made of approximately the same diameter so that the clip may be secured by either ear to the top of tube 5 and the switch then attached to the other car. It will further be noted that the openings in question are located at different distances from the adjacent edges of the two ears, so that by thus variously assembling the clip in the fixture, a corresponding variation can be given to the positionof the switch and thus best accommodate it to the space available within the latter.

The present extension and ceiling canopy construction make the unit quickly adaptable to meet all building conditions whether the wiring is concealed or exposed and whether the outlet boxes are exposed or sunk in the ceiling. It provides easily opened apertures for the necessary wires or conduits and is securely clamped in place as the connecting union holds it tightly against the ceiling and against the canopy. The extension will of course be finished in the same color as the canopy, and thus when used gives the appearance of a unitary structure. It is inexpensive to manufacture, being referably a sheet of metal formed into a cy inder with the overlapping ends secured together by eyelets 80,

or the like.

The device is particularly adaptable for use with fixtures where they are sold to meet commercial requirements as a single fixture unit and canopyemay thus be adapted to all normal conditions.

Other modes of applying the principle of my invention may be employed instead of the one explained, change beingmade as regards the mechanism herein disclosed, provided the means stated by the following claim or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my -invention:-

I11 a ceiling canopy construction, the combinationof an inverted bell shaped canopy having a tube therein, a nipple extending through said tube and having a chain link at the bottom and a threaded union at the top, and a switch support clip adapted to be clamped between said tube and said union to support a switch within saidcanopy, said clip comprising two 'angularly related ears, substantially as described.

Signed by me, this 21st day of August, 1924 ALBERT F..WAKEFIELD.

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