US1962067A

US1962067A - Lighting fixture

Info

Publication number: US1962067A
Application number: US640210A
Authority: US
Inventors: Edwin F Guth
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-10-29
Filing date: 1932-10-29
Publication date: 1934-06-05
Anticipated expiration: 1951-06-05

Description

E. F. GUTH LIGHTING FIXTURE June 5, 1934.

Filed Oct. 29, 1932 FIG.

ZQEE SQ-M ORNEY Patented June 5, 1934 more TENT

LIGHTING FIXTURE Edwin F. Goth, Webster Groves, Mo.

Application October 29, 1932,

(Cl. tie-78) Claims.

My invention relates to that class of lighting fixtures which are known as indirect.

It is well known that the use of the so-called total indirect type of illumination causes or produces a hollow effect upon the room due to the entire absence of local iiiumination.

To overcome this objection illuminaung o gineers have resorted to that type of fixture termed semi-indirect These fixtures are do sirable from an artistic standpoint but lose many of the esirable advantages of the total indirect. I

My invention has for its object to provide a fixture which will perform all of the functions of a total indirect fixture but which will redirect some of the reflected rays into a bowl formed of diffusing glass serving to softly i1- luminate it, thereby overcoming the objectionable appearance of a total indirect fixture. A further object of my invention is to obtain such illumination of the bowi without material loss of efficiency.

A further object of my invention is to provide a configuration for the glass bowl so that the exterior of the opaque reflector enployed for the indirect lighting will be slightly illuminated thereby removing the dark or black appearance of the indirect fixture.

My means of accompiishing the foregoing objects may be more readily understood by having reference to the accompanying drawing which is hereunto annexed and made a part of this specification in which Fig. 1 is a side elevation of my improved lighting fixture, part of the exterior being broken away to show the interior construction, the ceiling connection being shown broken off at one side;

2 is a modified form; and

Fig. 3 is an enlarged detail view.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawing the fixture is supported by a stem 1, the upper end of which is preferably provided with a swivel to ensure its fixture hanging plump, a canopy 3 is mounted at the ceiling to cover the outlet or junction box (not shown).

A socket 4 is secured to the lower end of the stem 1, as illustrated, this is constructed in accordance with my Patent No. 1,722,743, but obviously any type of socket may be used.

A socket cover 5 encloses the upper part of the socket 4.

An opaque reflector 6 is suspended by wire links '1.

Serial No. 64%,210

The interior of the reflector '6 finished in white porcelain enar. The 1 Jper ends of the links 7 are fastened to a collar 8 which is provided with threads 9 which fit the threads on the socket 4:. Though I have described a specific suspension means it will be apparent to persons skilled in the art that any suitable or convenient means may employed for this purpose.

An electric lamp bulb 11 is mounted in the socket 4.

The reflector 6 is shown as inverted howl ing a closed bottom but no particular conraticn is requisite, for it will vary as the is to be put vuse to which it Adjacent the bottom of the reflector 1 form an annular groove channel or trough 12 the outer wall 13 of which is to ticai and the inner wail 16 is inclined as shown. A mult plicity of apertures 15 are punched in the inner wall 16 of the groove 12.

I secure a translucent glass bowl 24 to the bottom of the reflector 6 as shown, the lip 17 of the bowl 24 contacts the bottom of the reflector 6 just inside of the annular groove 12. This bowl 24 may be secured to the reflector 6 in any desired manner; as shown in the drawing a screw 18 depends from the center of the reflector 6 and passes through an opening 19 formed in the glass bowl 2 1. A nut 20 serves to hold the bowl securely in place. As clearly seen from the drawing I construct the bowl 24 so that it has a portion 21 which projects beyond the wall 13.

This feature may be dispensed with if desired.

The operation of my device is as follows: When the current is turned on and the lamp is illuminated some of the light rays will impinge upon the reflecting surface of the wall 13; these rays will be reflected and re-directed passing through the apertures 15 into the globe 24, which will be thereby softly illumined. When the bowl 24 is constructed so that it has the outwardly projecting portion 21, the light from this portion will light up the exterior surface of the opaque reflector 6 sufficiently to eliminate any darkness thereof.

Although I have described in some detail the construction of a lighting fixture embodying my invention, it is not to be understood that this is a limitation but merely to describe a preferred form and I do not wish to be limited thereto, except as such limitations appear in the claims.

Under some conditions it may be deemed desirable to have a completely enclosed unit. I accomplish this in the manner shown in Fig. 2 in which I provide a transparent glass cover 22 which has a central opening 23 which fits the collar. When this cover 22 is in place it completely closes and covers the interior of the fixture. By forming it of transparent glass I am able to secure the desired result without loss of efliciency.

Having described my invention, what I regard as new and desire to secure by Letters Patent is:

1. In a lighting fixture having a lamp, a support therefor, an opaque reflector having bottom and side walls, supporting means therefor, said reflector having an annular groove formed in the bottom adjacent the side wall, the outer wall of said groove being substantially vertical, the inner wall being inclined, a translucent globe secured to the bottom of said reflector, there being a multiplicity of apertures through said inclined wall which are shielded from the direct rays of light whereby only reflected rays of light can reach said apertures and pass through the interior of said translucent globe to illumine it.

2. In a lighting fixture having a lamp, a support therefor, an opaque reflector having bottom and side walls, supporting means therefor, said reflector having an annular groove formed in the bottom adjacent the side wall, the outer wall of said groove being substantially vertical, the inner wall being inclined, a translucent globe secured to the bottom of said reflector, there being a multiplicity of apertures through said inclined wall which are shielded from the direct rays of light whereby only reflected rays of light can reach said apertures and pass through the interior of said translucent globe to illumine it, said globe having an outwardly extending portion which softly illumines the exterior of said opaque reflector.

3. In a lighting fixture having a light source, a support therefor, an inverted opaque reflector having a closed bottom wall, supporting means for said reflector, a plurality of apertures in the lower portion of said reflector substantially at the periphery of the bottom wall, a translucent bowl supported below the bottom of said reflector, said bowl having a peripheral portion extending inwardly thereof and covering said apertures whereby light rays, upon reflection, will pass said apertures and the inwardly extending portion of said bowl, thereby diffusely illuminating said bowl.

4. A lighting fixture comprising an inverted opaque reflector provided with a closed bottom wall, a plurality of apertures in the bottom Wall adjacent the periphery thereof, a translucent bowl mounted below the bottom wall and having a peripheral portion extending inwardly thereof below the peripheral portion of the bottom wall and covering said apertures.

5. In a lighting fixture having a light source, a support therefor, an opaque reflector having a closed bottom wall and an upwardly facing substantially conical side wall, a channel formed between the bottom wall and the conical wall, a plurality of apertures in the inner wall of said channel, a translucent bowl supported below the bottom of said reflector, said bowl having a peripheral portion extending inwardly thereof and covering said apertures, whereby light rays upon reflection will pass said apertures and the inwardly extended portion of said bowl, thereby diffusely illuminating said bowl.

EDWIN F. GUTI-I.