US1794837A - Lighting fixture - Google Patents

Description

March 3, 1931. I q DQANE I 1,794,837

LIGHTING FIXTURE Filed Aug. 8. 1929 INVENTOR eray C Doane BY ATTORNEY Patented Mar. 3, 1931 LEROY C.

ing lightingfixture adapted to employ a plu- UNITED E ArwJ DOANE, or MERIDEN, CONNECTICUT; assrenon To miminit comranxg or MERIDEN, CONNECTICUT, A CORPORATION oroonnno'ricur LIGHTING FIXTURE f Application filed Aug'ust s; 1929. Seri'aliN o. 3845352.;

The present invention relates to lighting fixtures and is particularly directed toward ceiling lighting fixtures having shielded light sources.

The present invention contemplates a ceilrality of incandescent lamps as light sources and providedwith a translucent glass plate underneaththe light sources to diffuse the light downwardly and with a narrow'opaque band about the center of the light sources to screen olidirect light thereby reducing glare,

The invention also contemplates'a fixture of this type wherein the filament shield and diffusing plate are detachably secured to parts ofthe fixture which are permanently carried by the ceiling outlet box.

The accompanying drawings show, for purposes of illustrating the present invention, one of the many possible embodiments in which it may take form. it being understood that the drawings are illustrative of the invention rather than limiting the same.

In these drawings:

. Figure 1 is a top plan view of the lighting Figure 2 is a vertical sectional view with parts in elevation; and

Figure3 1s a perspective view of the fixture from underneath. y T

In the'forin of construction shown'in the drawings, the fixture is illustrated as more particularly designed foruse as a bedroom fixture and adapted to be secured to the ceil- 'ing. As here shown the supporting device for the fixture includes a hickey 10 adapted i to be threaded on the stud outlet box or other are carried on a disk 15 secured as here shown in one of the steps 16 of a stepped canopy 17. The disk 15 overlies the upper'iace of the coupling 12 {mats thereby adapted to support the canopy and sockets in place. It is apertured as indicated at 19'to accommodate the necks of the lamp bulbs L which are car.- ried in the sockets 14. I These sockets are tures 25to accommodate: the lamp bulb The I stamping 23 is'permanentlysecured tojthc spaced so as carry' the lamp bulbs' Lson the vertical axis with the bulbs spaced as 7 close as possible to the center stem. 1-

Thelower part ofthe ste1n13 1s surrounded by a tube 20. This tube is slidably carried. by the stem and'is provided with ajelamping screw. 21. adapted to enter into one or'the other I of the holes indicated at 22, these holes beingm spacedacfcording to the lengthsoflampbulbs c: g a to. be used inthe-fixture.

Thetube 20 also carries a. filament shield. c This filament shield is in theformof a'sheet metal stamping hav ingsuhstantiallyvertical walls Q La-nd apertubing 20 and when. the screw :21 is"in-.the

proper hole in the stem13, the filament shield will be held at approximatelythe center of the n lamp bulh.:.- The stem '20 also carries a hickey 1 26 which supports aldifinser QYpreferablyin the form of a.large flat glass disk. The dif-,

:t'u'ser isheldin place by: a nut 28 threaded up? against an ornamental cast diskv 29.

When the fixture is installed; it may appear, substantially'as indicated in Figurex3. .The

band 24: of the filament shield will cut ofl the .5

horizontally emitted beams of light and hence I will reduce glare." .The glass, disk 2? and the filament shield 24ers preferably proportioned sothat no direct rays can pass. between the lower partpf the: filament shield and'the tlplJBriBflgfiU'f the glass: disk. This condition; 1s 1nd1cated bythe dot and dash line 30611 I theleft of FigureQ. L he diiiuserwill receive all of the. downwardly" directed-light from the lain-p bulbs and will diffusejit' to provide a soft even illumination. 5.;There -':'will be am ple upwardly directed light for ceiling illumination but no horizontally emitted direct light to produce glare. i,

within the scope-otthe claims; and-I wish it to be understood; that the particular; form shown is butone of the many; forms. Various 'IHOCllllCZLtlOIlS and changes being possible; I.

It is. obviousthiit the invention may be Y embodied 1n many forms and constructions stem, a. plurality of downwardly opening with the shield about the'lamp filament and lamp sockets spaced about the stem, incanthe glass disk below the lamps.

descentlamps in the sockets with their bulbs and an opaque filamentshield inatheform of a narrow metal band supported trom the stem 7 and about the middle portion of the bulbs.

2,18, lighting unit comprising a central stem," a"'plurality" of downwardly opening lamp sockets spaced abouttl're" stem, incandescent lamps in the sockets with their bulbs 7 adjacent the stem, a large diameter diffuser carried by the stem below the lampbulbs and an opaque filament shield in the form of a narrow metal band supported from the stem and aboutthe middle portion: of the bulbs,

the shield being adjustable to various heights according to the length of drfi'crent' lamp :bulbs.

I 3. A lighting unit comprising acentral stem, a plurality of downwardly opening lamp sockets spaced about the stem, incandescent lamps in the sockets with the-irbulbs adjacent the stem, a tube slidab-ly carried on the stem a large diameterdifi'user carriedby the tube below the lamp bulbs, and opaque filament shield in the form'oi a'narrow metal band supported fromthe tube and'about the middle portion of the bulbs.

4:. A. lightingifixture comprising a canopy,

a plurality of downwardly opening lamp sockets housed therein,- inc andescent lamps in the: sockets, a stem extending downwardly from the: canopy, filaline-ntshield carried by the: stem and having l10lS to receive the lamp bulbs and awsubst'a-ntially vertical band to cut oil horizontal rays from the lamp filament, and a: diffuser carried by the stem below the'lamp's and extendingbeyondthe lamps. c. l a V V V 'Xl'olt n-f't- 0-1 w v o. I i 1 m 1A uiocompiisin a canopy, a plurality of downwardly openln lamp sockets housed therein, incandescent lamps in the sockets, the canopy having ian apertured bottom wallto accommodate the necks oi the lamps and conceal the sockets, a-st'eni extend ing downwardly from the canopy, a filament shield carried by iheste-m and having holes to receive the lamp bulbs an d afsubstantially canopy, a horizontal disk secured to the inside of the canopy, a: plurality of lamp sockets carried by the disk, the canopy having openingsibelow the sockets to accommodate the necks of incandescentlamps carriedby the sockets, a central supporting st'e n passed through the canopy'andi disk and having an abutment to engage the disk andsupport the fixture, and a detachable filament shield and diffusing glass disk supported-from the stem Signed at Meriden, in the county of New ad acent the stem, a large diameter difl'user liave-n, and State or Connecticut, this 5th carried by the stem below the lamp bulbs, day of August, 1929.

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