US1958051A - Mounting device for electric fixtures - Google Patents

Description

May 8, 1934. M. KORAL MOUNTING DEVICE FOR ELECTRIC FIXTURES Filed Dec. 1932 Patented May 8, 1934 PATENT OFFH'CTE MOUNTING DEVICE FOR ELECTRIC FIXTURES Morris Koral, Bronx, N. Y.

Application December 7, 1932, Serial No. 646,124

4 Claims.

This invention relates to devices for mounting electric fixtures.

An object of this invention is to provide a device of the character described comprising a junction 7 or outlet box to which there is attached a mounting device for electric lighting fixtures, said mounting device being adjustable longitudinally and angularly whereby the lighting fixture may be placed in proper position irrespective of inaccuracies in the position of the junction box.

A further object of this invention is to provide a mounting device of the character described provided with an improved splice block likewise adjustable to simplify attachment of wires thereto.

A still further object of this invention is to provide a compact, rugged and durable device of the character described, which shall comprise comparatively few and simple parts, be easy to manipulate and install, which shall be relatively inexpensive to manufacture and withal practical and efficient to a high degree.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplifled in the construction hereinafter described and of which the scope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

' Fig.1 is an elevational cross-sectional View of r the device embodying the invention;

Fig.2 is an elevational crosssectional view of the device shown in Fig. 1, illustrating another side of said device;

Fig. 3 is a cross-sectional view taken on line 10 3-3 of Fi 1;

Fig. 4 is a cross-sectional view taken on line 44 of Fig. 3 with parts of the mounting device somewhat separated;

Fig. 5 is a rear elevational view of a mounting device embodying the invention and illustrating a modified construction; and

Fig. 6 is a cross-sectional view taken on line 6-6 of Fig. 5.

Referring now in detail to the drawing, 10 des- "tb ignates a device embodying the invention comprising an outlet or junction box 11, here shown in the form of an ordinary ceiling box, although the box 11 may be attached to side walls or used ,...,,in any other position. The upper wall 12 of the box 11 is provided with the usual stud 13.

Mounted on said stud is an L- haped member 14 having an arm 15, and an arm 16 disposed at right angles to said first arm. Said arm 15 is provided with a tubular portion 17 having threads receiving the stud 13. The arm 14 may be flat and provided with a longitudinal slot 18, for the purpose hereinafter appearing. At the outer end thereof said arm 14 is provided with an inwardly bent projection 19. Attached to the member 14 is a second L-shaped member 21, likewise having an arm 22, and a second arm 23 disposed at right angles to said first arm. The arm 23 is likewise flat and preferably of substantially the same width as said arm 16 of the member 14. The arm 23 may be formed with a plurality of parallel spaced slots 24, each having an upper curved edge 25. It will be noted that the projection 19 may be received in one of said slots 24. The arm 23 is further formed with a screw threaded opening 26 adjacent the outer end thereof and a screw 27 passes through the slot 19 and is screwed within said opening for attaching the arms 16 and 23 together.

It will be noted that the over-all length of the device, 14-21, may be adjusted by unscrewing the screw 27 sufficiently for releasing the projection 19 from one of the slots 24, and then moving said projection 19 into another slot and again tightening said screw. Furthermore, the angle between said arms may likewise be adjusted, as shown in Fig. 2 of the drawing. This may be accomplished by merely loosening the screw 27 and then moving said arms to the desired relative angle, and again tightening the screw. The projection 19 is preferably of less width than the slots 24. By reason of the curved edges 25 of said slots 24, the projection 19 may be moved in an arc of a circle within each of said slots.

The arm 22 of said member 21 may be parallel to the arm 15 of the member 14 and is likewise provided with an internally screw threaded tubular portion 30 for receiving a nipple 31, forming part of a lighting fixture. Thus should the box 11 be set in the wall crooked or at a small angle to the plastered surface of the wall, the nipple 31 may be caused to be directly normal to said surface by reason of the angular adjustment between the members 14 and 21. Due to the longitudinal adjustment, junction boxes of various sizes may be used.

Attached to the inner surface of the arm 23 is a splice block 34, preferably made of insulating material and having a plurality of openings 35 extending from a pair of opposite side surfaces 35a thereof, and preferably in staggered relation.

' tion 48 at the outer end thereof.

The openings preferably taper inwardly from the surfaces 35a of the block and terminate in portions 36 of V-shaped cross-section. Communicating with each of the portions 36 of said opening 35 is a screw threaded opening 37 extending to the front wall 38 of said block 34. Thus wire ends may be inserted within the tapering openings 35 and forced into the V-shaped portions 36 of said openings. Screws 39 preferably made of insulating material, serve to press the wires in said opening portion 36 for clamping the same together. The block 34 may be attached to said arm 23 by screws, or in any other suitable manner. Thus by adjusting the member 21 longitudinally, the block may be brought somewhat out of the box 11 to facilitate splicing of the wires thereon.

In Figs. 5 and 6 there is shown a mounting device 40 illustrating a modified construction. The member 49 comprises a pair of angle-shaped members 41 and 42. The member 41 is provided with an arm 43 having a screw threaded tubular portion 44 closed at one end, as at 45. Extending from the arm 43 is a flat arm 46 formed with a longitudinal slot or opening 47, and a projec- The member 42 is likewise formed with an arm 49 contacting said arm 46 and extending from said arm 49 is an arm 50 likewise formed with a tubular internally screw threaded portion 51 for receiving a nipple. The arm 49 may be provided with a plurality of spaced, straight slots 52, each of which is adapted to receive the projection 48. The arm 49 may likewise be formed with a screw threaded opening 54 adjacent one end thereof for receiving the screw 55 which passes through the slot 4'7. Thus the slots 52 may be straight where it is not desired to have an angular adjustment. The projection 48 is preferably substantially the width of the slots 52. The tubular portion 44 is closed, as at 45, whereby said device 40 may be attached to the end of a gas pipe for closing one end thereof. Said device 40 may be adjusted in length by properly manipulating the screw 55 and inserting the projection 48 in one of said slots 52. The block 34 may be attached to said arm 49 although said block may be omitted if desired.

It will thus be seen that there is provided a device in which the several objects of this invention are achievedand which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:-

1. A device for supporting a lighting fixture, comprising an L-shaped member having an arm provided with a longitudinal slot, and a projection at the end of said arm bent at an angle to said arm, a second L-shaped member having an arm provided with a plurality of parallel slots, each adapted to receive said projection and being formed with a screw threaded opening, and a screw extending through said longitudinal slot and received within said screw threaded opening.

2. In combination, a junction box, a member attached to said box and having a portion formed with a longitudinal slot and a projection bent out of the plane of said portion, a second member having a portion adapted to contact said first portion and being formed with a plurality of parallel slots, each of which is adapted to receive said projection, said portion of said second member being formed with a screw threaded opening, and a screw extending through said longitudinal slot and received within said screw threaded opening.

3. In combination, a junction box, a member attached to said box and having a portion formed with a longitudinal slot and a projection bent out of the plane of said portion, a second member having a portion adapted to contact said first portion and being formed with a plurality of par allel slots, each of which is adapted to receive said projection, said portion of said second member being formed with a screw threaded opening, and a screw extending through said longitudinal slot and received within said screw threaded opening, said parallel slots having curved portions to permit angular adjustment between said members.

4. In combination, a junction box, a member attached to said box and having a portionformed with a longitudinal slot and a projection bent out of the plane of said portion, a second member having a portion adapted to contact said first portion and being formed with a plurality of parallel slots, each of which is adapted to receive said projection, said portion of said second member being formed with a screw threaded opening, and a screw extending through said longitudinal slot and received within said screw threaded opening, said parallel slots having curved portions to permit angular adjustment between said members, and a splice block attached to said portion of said second member.

MORRIS KORAL.

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