US1870642A - Lighting fixture - Google Patents

Description

Aug. 9, 1932. A. J. D. OHM

LIGHTING FIXTURE Filed July 31, 1930 3 Sheets-Sheet l (W1 masses Ml I! 15 i fg tl A. J. D. OHM

Aug. 9, 1932.

LIGHTING FIXTURE 3 Sheets-heet 2 Filed July 5l.' 1930 Aug. 9, 1932.

A. J. D. OHM

LIGHTING FIXTURE Filed July 5l. 1950 3 Sheets-Sheet 3 Patented Aug. 9, 1932 UNITED STATES PATENT OFFICE ALBERT J'. D. yOI-IM, OF OAK PARK, ILLINOIS, ASSIGNOR TO BEARDSLEE OHANIDELIER MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELA- WARE LIGHTING Application led July 31,

My invention relates to a lighting fixture and more particularly to a suspended or chandelier type of fixture; the invention having for its obj ect the provision of a fixture whereby the escape of direct rays of light is prevented, while at the same time objectionable shadows are eliminated.

The invention also has for its object the provision of a chandelier having a more or less open or skeleton type of shell withinwhich the lighting elements and a suitable reflector and diusing element are located and means within the shell are provided for removably holding a diusing element in the bottom of the shell beneath the light-ing element or bulbs.

A further object of the invention is the provision of means on the shell exterior arranged at predetermined points to cooperate withy a shade of predetermined configuration whereby the shade is supported in proper position without resort to the usual fastening means or screws. That is to say, the invention involves means whereby the shade, when in one position relative to the frame or shell of the fixture, will be held in place, while a slight rotative movement of the shade relative to the frameV or shell will permit the shade to be readily removed from the bottom of the fixture to permit cleaning of the fixture; while on the other hand renewal of the lighting element or bulbs may be readily accomplished by merely removing the bottom diffuser element through slight rotation thereof.

The invention also involves means whereby the reflector or shade within the shell may be adjusted or regulated relative to the outer shade so as to avoid direct light-ray escape above the outer glass or main shade.

The above enumerated objects and advantages as well as other advantages inherent in the invention will all be readily comprehended from the following detailed description of the accompanying drawings, wherein:

Figure 1 is a perspective view of my improved fixture with a portion of the outer glass or shade broken away.

Figure 2 is a vertical sectional view'of the fixture.

FIXTURE 1930. Serial No. 472,000.

Figure 3 isa perspective view of a lightreflector and diffuser element.

Figure 4 is a perspective view of one unit of the main frame or shell of the fixture.

Figure 5 is a. cross-sectional view taken substantially on the line 5-5 of Figure 2 as viewed by the arrows.

Figure 6 is a cross-sectional view taken substantially on the line 6 6 of Figure 2 as viewed by the arrows.

The invention, as exemplified in the drawings, relates particularly to a chandelier hav'- ing a main frame portion constructed to provide a skeleton or open shell- 10 of any suitable fanciful configuration and wherein the lighting element or bulb is preferably suspended from the usual bulb socket 11 secured to the hub portion 12 of the shell which hub portion is shown for means of illustration, provided with a suitable loop or ring 18 to which a suspending stem or chain may be secured in order that the fixture may be suspended from an overhead support or ceiling.

The main frame or shell 10 preferably con sists of a number of unit portions as shown in Figure 4, comprising the vertically disposed frame member 14 whose upper ends are shown curved inwardly and are intended to be secured to the hub portion 12 in any suitable manne-r, as for example by the small bolts or screws 15, see Figure 2.

The lower end of the frame member or portion 14 has a laterally disposed ornamental arm 16 which terminates' at the outer end in an outwardly disposed and upwardly bent lug port-ion 17 having a depending flange 18 at bottom which latter is adapted to seat in a socket 19 of the next adjacent unit formed at the lower end of the frame members 14 (as shown in Figure 4) all of the units of the chandelier being identical with the unit shown in Figure 4 where the socket 19 lis clearly shown. This socket is adapted to receive the depending flange 18 of the adjacent frame unit which would be located at the left of the unit shown in Figure 4. The socket of the frame member 14, like the depending flanges 18, are apertured at 20, 20 to receive a suitable bolt or screw 23, see Figure 1, whereby the respective frame units are secured together into a hollow shell, as shown in Figure 1. The main frame of the fixture may be of the cylindrical formation shown in F igure 1 or may be made to provide a shell of different contour if desired.

The interior of the respective shell members or frame portions are each provided with an'inwardly disposed lug or pin 26 as can be seen in Figures 2 and'. These lugs or pins 26 are intended to support a suitable light diffusing element 27, shown in detail in Figure 3;' the element 27 being of a contour similar to the inner contour of the shell. This element 27 preferably consists of translucent inaterial so as to diffuse the light emitted by the lighting element or bulb 28, shown in Figure 2, which is secured in the usual manner in the socket member 11.

The diffusing element r27 is of 'configuration to conform more or less with the internal configuration of the frame of the fixture and therefore in the exemplification this diffusing element 27 is in the nature of a. circular disc or somewhat concavo-convex form, as shown in Figure 2, and provided on its perimeter with notches or sockets 29 arranged in number and at distances apart in keepingfwith the number and distances between the respective pins or'lugs 26. This diffuser element 27 is intended to be inserted upwardly through the bottom of the main frame of the fixture by having the notches or sockets `29 register with the pins thereby permitting the element 27 to be raised above the plane of the pins or lugs 26 at which time a slight rotation of the element 27 will move the notches or sockets thereof out of register with the pins 26 and thus allow the element 27 to rest upon the lugs or pins 26, as shown in Figure 2. This permits the element 27 to be easily removed to provide access to the lighting element.

The socket member 11 is shown provided with screw threads at 30, see Figure 2, for the purpose of receiving the metallic ferrule 31 which is internally threaded and which ferrule in turn is fianged at bottom and secured to a reflector or inner shade holding shell 32 to which the inner shade 33 may be' secured in any suitable manner, as for example by the set-screws 34. The adjusted position of the .shell 32 with its ferrule 31 is maintained by f set-screw 32 which causes a binding relation between the ferrule 31 and the socket 11. With this arrangement, it is apparent that the inner shade 33 may be adjustedin a vertical direction which permits the inner shade 33 to be positioned relative to the top of the main outer shade or glass 35 in order that direct-rays of light cannot be emitted through the rtop of the fixture. n I

The outer main glass or shade 35, `which is preferably open at top and bottom, is pro- Y vided with a. plurality of outwardly disposed or bowed portions 36 vflaring outwardly toy ward the top, as shown in Figure 15 the bowed or bellied portions extending outwardly beyond tlie main lines of the fixture; the respective bowed portions thus providing valleys intermediate of the portions as shown at 37. The respective valleys 37 or junctures between the outwardly disposed portions are arranged to define a circular plane disposed withinV theplane of the lugs 17 of the frame portions of the fixture and therefore these valleys 37 are intended to receive the lugs17 to permit the lower edge of the shade to seat on the inwardly extending portions of the lugs 17 as shown in Figures 1 and 2 for the purpose of supporting the outer glass or shade 35 in place.

As is apparent from the construction shown, by lifting the shade 35 upward from its seated position shown in Figures 1 and 2 suliciently to bring the bottom edge of the shade above the tops of the lugs 17, the shade 35 may then be given partial rotation about the frame of the fixture sufficient to align the lugs 17 with the outwardly disposed or bellied portions 36 of the shade which will allow the'shade to clear the lugs and to be lowered and removed from the fixture.

With my improved construction, the man outer glass or shade can be readily, put into place without the necessity of removing any set-screws or portions of the kfixture and; the shade may as readilyV be removed when Yoccasion requires without unserewing any parts. n y n After the main outer glass or shade has beeny put into place, the inner shade or reflector 33 is then adjusted by rotation of its shell and ferrule on the socket member l1 so as to position the lower perimeter of the inner shade 33 slightly beneath the top marginal edgeof the outer glass or shade 35.

In the particular exemplification, the invention has been shown in connection with a fixture of more or less cylindrical form consisting'of five frame members or units 14 and therefore the outer shade or glass has also been provided with five arcuate or outwardly disposed portions to produce five valleys in keeping with the number of supporting lugs 17; and likewise the inner diffusing element 27has been shown providedY with five notches or sockets 29 in keeping with the number of pins 26; but it will be understood that the fixture may consist of any number of frame units with the outer ylot shade having outwardly bulged portions and valleys in keeping with the number of lugs on t-he fixture and that the diffuser element 27 may Vlikewise be provided with notches or sockets 29 in number and arrangement in keeping with the number of pins 26 011 the fixture interior. Y

As previously described, the main frame or shell of the fixture is preferably composed of separate units, each formed as shown in Figure 4f with the laterally disposed arm 16. While this arm 16 may be given any ornamentation desired, the arms of the respective units are preferably provided with the metal plate portions 3S which extend above and below the plane of the lower perimeter of the outer shade 35, as shown in Figure l, in order to prevent the escape of light-rays. My improved fixture is so constructed that the light-rays strike the outer or main shade 35, and by reason of its formation or curvature are reflected downwardly and upwardly against the outer sides of the frame causing the fixture to be illuminated as well as giving the desired light. With the shade extending beyond the sides of the frame portion and having the outward curve or taper at the'top as shown, the entire outer side of the fixture is also illuminated and undesirable shadows are eliminated.

I have shown the preferred embodiment of my invention which has been described in terms employed merely as terms of `description and not as terms of limitation, as structural modifications may be made and the general contour of the fixture frame may be altered without, however, departing from the spirit of my invention.

Vhat I claim is:

l. A lighting fixture comprising a generally cylindrical main frame provided on its exterior and above the lower end thereof' with outwardly disposed npstanding lugs at prearranged distances apart about the main frame; andan outer shade open at the top and at the bott-om and adapted to have the frame extend therethrough, said shade being composed of a plurality of outwardly disposed portions extending beyond the circle of said lugs with the portions intermediate of the outwardly disposed portions extending within the circle of said lugs, said latter mentioned portions at the lower open end of the shade being adapted to seat on said lugs with the upstanding portions of the lugs disposed substantially parallel with the outer face of the intermediate portions of the shade.

2. A lighting fixture comprising a generally cylindrical main frame or shell provided adjacent its bottom with a plurality of outwardly and upwardly disposed angular lugs; and an outer shade open at top and bottom adapted to have the frame extend therethrough in spaced relation therewith and having av plurality of outwardly bulging portions extending beyond the circle of said lugs, while the valley portions of the shade intermediate of said outwardly bulging portions extend within the circledefined by said lugs whereby the lower end of the shade intermediate of thev bulging portions is adapted to receive and to rest on said lugs with the upstanding portions of the lugs arranged on the shade lexterior in the valley portions thereof.

3. In a lighting fixture of the class de scribed, a main frame or shell composed of a plurality of detachable sections each consistingof a vertical frame portion provided adjacent the bottom with a laterally disposed portion adapted to match the adjacent section; the laterally disposed portion of each section being provided with an outwardly disposed lug adapted to provide a shade-receiving seat.

et. A lighting fixture comprising an outer skeleton main frame or shell provided on its interior at the top with a lighting element receiving socket holding member' and adjacent the bottom on the interior thereof with inwardly disposed lugs while the exterior of the skeleton shell adjacent the bottom is provided with outwardly disposed lugs arranged at predetermined distances apart circumferentially about the shell; shade holding means whereby an inner shade is' adjustably secured to the lighting element receiving socket adapted to permit vertical adjustment; a diffuser element adapted to be located within t-he bottom of the shell and provided on its perimeter with notches spaced circumferentially apart in keeping with the spacing between the lugs on the interior of said shell whereby said diffuser element is insertible through the bottom of said shell when its notches register with said lugs and said element held in place by said lugs upon partial rotation of the element; and an outer shade open at top and bottom and having convolutions extending beyond the circle of said outer lugs while the valleys between the convolutions come within the circle of said outer lugs and are adapted to seat thereon.

5. In a lighting fixture of the class de-V scribed, a main shell composed of' a plurality of detachable sections each consisting of a vertical frame member provided adjacent the bottom with a laterally disposed portion or arm terminating in an outwardly disposed lug adapted to provide a shade receiving seat; the lower end of the vertical frame member being soc-keted to receive the end of the laterally disposed arm of the adjacent section; means whereby the lower ends of the respective sections are secured together.

6. In a lighting fixture of the class described, a main shell composed of a plurality of detachable vertical sections, each having a laterally disposed arm adjacent the bottom provided with an outwardly disposed lug adapted to provide a shade holding seat; the lower ends of the respective sections having matching surfaces to receive the ends of the arms of the adjacent sections; and a central hub member to which the upper ends of the respective sections are secured.

7. A lighting fixture comprising a skeleton main frame of vertical fra-me portions provided adjacent the bottom with laterally disposed portions provided on the exterior with shade holding lugs and'havng enlarged vertical wells extending above and beneath the '5 horizontal plane of the shade seating portions of the lugs; and an outer shade open at top and bottom and flaring outwardly toward the top, the shade being composed of a plurality of outwardly bulging portions extending be- 10 yond Vthe circle of said lugs While the portions intermediate of said bulging portions extend Within the circle of said lugs and are adapted to seat on said lugs.

u ALBERT J. D. OHM.v

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