US1725028A - Lighting fixture - Google Patents

Description

ug. 20, 1929. N. URELES 1,725,028

LlGHTING FIXTURE Filed March 25, 1926 IN VEN TOR.

Patented Aug. 20, 1929.

UNITED STATES NATHAN URELES, 0F NEW YORK, N. Y.

LIGHTING FIXTURE.

Application filed March 25, 1926. Serial No. 97,322.

My present invention is primarily concerned with wall bracket lighting fixtures of the t pe in which the control switch is carried y or associated with the panel.

It may be noted that the provision of individua-l pull sockets for candle wall brackets, adds considerably to the cost, while on the other hand, the symmetry or continuity and the attractive appearance of the panel is destroyed when the switch associated therewith, with its protruding operatingr member, is disposed below, above or laterally of the usual central panel mounting button.

It is an object of the invention to provide a symmetrical wall fixture of the type referred to and more specifically to avoid interrupting or breaking the contour of the panel ,to accommodate theswitch, all without increasing the cost of the complete fixture or impairing the ease of installation or rendering the switch operating key or member less accessible than where an interrupted or discontinuous panel is employed.

Another object is to provide a universal construction which may be used with any of the common canopy switches employed for wall or ceiling fixtures vand which may be readily applied for use with a panel or shell of any depth or convexity.

In carrying out the invention, the switch operating device is located at the middle of the panel where the mounting knob has heretofore been disposed. For this purpose, the

canopy switch of any of the known constructions, is mounted on a simple frame or support structure which, in turn, is attached to the usual stud of the outlet box. The usual shank formed on the switch casing is preferably secured to the frame either by screwing said shank into a corresponding threaded hole in the frame or by securing it thereto by means of a nut or in any other equivalent manner, or by forming the cover plate of the switch as the frame or as an element of the frame. In any of these arrangements, the switch casing can be handled as a rigid part of the frame. The threaded shank of the switch protrudes through the central aperture in the wall bracket panel which is clamped against the frame by means of a nut screwed upon said shank. The spindle or other switch operating member preferably extends through the shank of the switch casing for access from the exterior of the panel.

The switch holding frame is preferably of adjustable construction, illustratively a twopiece yoke, the outer piece of which preferably carries the switch mechanism, and may.

be positioned at any desired distance from the mounting stud upon which the inner yoke member is fixed. Thus, the yoke is readily adapted to panels of different depths or convexities.

The switch casing is associated with or formed with the yoke or frame, as above suggested, by clamping in place with a nut around the threaded switch casing shank, or where this is feasible by screwing the switch casing shank into a part of the yoke or frame, pr by forming the cover plate of the switch as the outer yoke member. The specific construction of my copending application, Serial No. 34,543, filed June 3, 1925, of which the present application is a continuation in part is, however, also desirable, a common element serving in the embodiment there shown, conjointly to secure both the switch casing and the panel in position.

In the accompanying drawings in which are Shown one or more of various possible embodiments of the several features of my invention,

Fig. 1 is a view in vertical longitudinal cross-section showing one embodiment of the invention,

Fig. 2 is a fragmentary plan view of the fixture with the panel removed,

Fig. I3 is a transverse sectional view of an alternative form of switch-holding arrangement,

Fig, 4 is a plan view thereof,`

Fig. 5 is a view similar to Fig. 3 of another embodiment,

Fig. 6 is a plan view thereof,

Fig. 7 is a view similar to Figs. 3 and 5 of a further embodiment, and;

Fig. 8 is a plan view of the latter embodiment.

Referring now to the drawings, I have shown in the wall w of a building, a conventional outlet box 10 equipped with the usual threaded stud 11. Upon this stud there is screwed the hub 12 of a frame or yoke. A canopy switch member 13 of any of the known conventional types extends within the space defined by the frame and has a threaded shank 14 protruding through a corresponding aperture in the outermost part of said lamp carrying arms 17. encloses the frame and the switch carried thereby and is secured in place preferably by a nut 18 screwed upon the protruding end of the switch shank 14 and serving to press said panel against the nut 15 and to hold the rim of the panel close dto or against the wall w as shown.

The frame is formed as an adjustable yoke so that the device vmay be arranged for adap tation to panels of varying thickness or convexity. For this purpose, the yoke is formed Vof two separate elements, 'each preferably of drawn metal, as shown, for purposes of econ omy. The inner member 12 has a pair of arms 20 straddled by arms 21 integral with the outer member 22. Screws 23 through corresponding slots 24 longitudinally in the outer arms are threaded into the inner arms 2O whereby the depth or height of the yoke can be adjusted in accordance with require ments. j Y

The mode of assembly and installation will be immediately apparent. The yoke 12-22 with the switch casing lixed thereon, being adjusted to the depth of the panel, itis screwed upon the stud 11, the panel 16 is applied and the nut 18 is screwed in place upon the protrudingshank 14. rThe usual switch operating button or knob 25 is merely screwed upon the protruding end of switch spindle 26.

1n the` embodiment of Figs. 3 and et, the cover plate 13 of the casing `which is se- .cured in place by the screws s or equivalent elements usually employed, is formed with integral extension arms 21 to provide the outer adjustable element of the yoke. Thus, instead of using the switch cover plate on the standard switch and the eXtra yoke piece vas in Fig. 1, ajsingle stamping performs the function of both said elements. Corresponding parts bear the same reference numerals asin Fig. 1 primed.

In Fig. 5 is shown another alternative embodiment whichincludes a different though familiar type of canopy switch, the casing 132 of which is circular as shown, rather than elongated as in the embodiments of Figs. 1

j 203, the shank 143 of the switch is screwed di- 183 being screwed upon the end of the thread-V ed shank 143 which protrudes through said panel and clamps the same in position. Y

In Figs. 7 and 8 is shown a further em-V bodiment illustratively indicating a switch 13* of the oscillating snap type. The switch element andthe dumb bell shaped operating arm 30 are of common and well known construction. 'lhe threaded shank 144 of the switch is screwed into the outer end of the yoke 224 and a nut 154 is screwed upon said shank to more securely clamp and lock the casing against the yoke and to form a reaction surface for the panel 164 which is clamped in position about its central opening by means of an outer nut 184.

I have, thus, in a thoroughly practical manner, utilized inexpensive canopy switches of any of various types that are well known7 for the symmetrical uninterrupted wall bracket constructions'generally associated with the relatively costly electrical pull 'candle wall brackets.

The invention while preferably applied t wall brackets is not limitedl to such use, but certain of the broader features thereof are applicable to fixturesof other type, for instance, to ceiling fixtures where. in lieu of wall panels. ceiling canopies or shells would be used. The broader claims are, accordingly, not to be limited to fixtures for a vertical wall but are generic ,likewise to ceiling or floor fixtures. Y

It will thus be seen that there is herein described apparatus in which the several features of this invention are embodied,l and which apparatus in its action attainsthe various objects of the invention and is well suited to meet the requirements of practical use.

As many changes could be made in the above construction. and many apparently widely different embodiments of this inven tion could be made without departing from the scope thereof. it is intended that all matter contained .in the above description or shown in the accompanyingfdrawings shall be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure byrLetters Patent of the United States is:

` A wall lighting fixture' comprising complementary generally similar yoke members, the arms of one yoke member fitting between the arms of the other and being slidably adjustabl e relatively thereto, means to lock the yokes against sliding movement in any desired position of adjustment, the intermediate portion of the inner yoke member including an integral internally threaded collar adapted to be screwed on to the stud of an outlet box, the intermediate portion of the outer yoke member having an opening therein -alined with the collar, a switch sustained entirely on the outer yoke member including a casing disposed behind said member and a threaded shank projecting through said opening, a nut screwed on to the shank and against the outer face of the outer yoke member to draw the switch casing against the inner face of said member, a lamp carrying panel enclosing the yokes and having an opening therein receiving the threaded shank of the switch casing, a second nut screwed on to the shank and forcing the casing home against the first mentioned nut, a switch spind e including an end projecting outwardly 10 from the switch casing shank and a knob on the spindle arranged exteriorly of the panel.

Signed at New York City, in the county of New York, and State of New York, this 22nd day of March, A. D. 1926.

NATHAN URELEVS.

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