US1297781A - Lighting-fixture. - Google Patents

Description

Patented Mar. 18,1919.

2 SHEETSSHEET l- Irate vita? fiifi u u G. M. BEARDSLEE.

LIGHTING FIXTURE.

APPLICATION FILED AUG.28. 1917.

Patented Mar. 18,1919.

2 SHEETS-SHEET 2- irnn erase an are. p

GEORGE M. BEARDSLEE, OF CHICAGO, ILLINOIS, ASSIGNOR T0 BEARDSLEE CHELIER MANUFACTURING COMPANY, A CORPO 'IION OF DELAWARE.

LIGHTING-FIXTURE.

. reenter.

To all whom it may concern:

;Be it known that l, GEORGE M. BnAnosLEE, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lighting-Fixtures, of which the following is a description, reference being had to the accompanyin drawings, which 'form a part of my speci cation.

My invention relates to lighting fixtures more especially adapted to the employment of electric lamps of high candle power and particularly where the lamps, shades and owls are intended to be suspended by a chain or other medium from a stud in the conduit-box or supporting member.

The invention contemplates means whereby the relation between the lamp and the shade or bowl, or both, may be readily adjusted or altered, so as to produce the desired lighting effect, without dismantling or disconnecting any of. the parts of the fixture.

The invention also contemplates a construction which-readly enablesthe suspended bowl to be partially disconnected from its suspending means, (without entirely dis;

mantling the bowl and inclosed portion of the fixture to be easily cleaned and the lamp or lamps to be replaced if necessary.

The invention provides a fixture which permits such adjustment of its respectiveparts that all direct rays of light, especially when high candle power lamps v are em-. ployed, may at all times be prevented from passing beyond the shades and bowls, so as to adapt themtoall purposes, without, however, encountering the harsh rays of light and yet at the same time eliminating the objectionable shadows frequently encountered with a suspended type of fixture.

The foregoing enumerated advantages, as well as others inherent in the invention, will be more fully comprehended from the following detailed description of the accompanying drawings wherein 4 Figure 1 is a vertical sectional view of a lightmg fixture embodying my improved features.

Fi 2 is a cross-sectional view, taken on the line 22 of Fig. 1 looking downwardly, with portions of the shade broken away.

Fig. 3 is a detail perspective view of the lamp-socket holding member.

Specification of Letters Patent.

fixture) so as to permit the Patented Mar. 18, 19119.

Application filed August 28, 1917. Serial No. 188,563.

Fig. l is a detailed perspective view of an adjusting element adapted to coeperate with the lamp-socket holding member.

Fig. 5 is a. partial vertical view and side elevation of a modified form of lighting fixture embodying my invention.

Fig. 6 is a fragmentary detail viewof my improved supporting element and the lower portion of the surounding canopy or shell shown in Fig. 5.

Figs. 7 and 8 are detail perspective views of my improved bowl-supporting elements or clips.

Fig. 9 is 'a vertical sectional view of a modified form of shell provided with my 'improved bo-wl-supportin member or holder. Fig. 10 is a bottom p an view of same. ln the exemplification of the invention as illustrated in Fig. :1, the lighting fixture is shown supported by means of a chain suspended from a supporting stem, and also provided with a large shade andbowl which may of light emanating from a high candle power lamp, illustrated at 20', which screws into the usual porcelain socket member 21. The member 21, in this instance, is secured to the laterally disposed flange 22 at the lower end be adapted to direct and soften the rays of a supportin member 23, the upper end whereof is pre erably provided with an ob "long opening extending transversely there through so as to give it the appearance of a loop or link of a chain, 'as very clearly shown in Figs. 1 and 3. The lower end'of member 23 may be somewhat difierently formed from that shown, so as to receive the porcelain top onscrew-cap of any standard make of electric lamp-socket. The portion of; the member 23, intermediate'of the oblong opening at the upper end and the transversely disposed flange 22, is externallythreaded, as clearly shown, so as to receive the Y internally threaded collar or bushing 24:, shown in detail in Fig. 4.

One side of member 23 is provided with a longitudinally disposed groove 25 extending from the oblong opening down to the lower end of member 23, thus providing a continuous passage from the opening at theupper end of the lamp-receiving socket 21 to the upper end of members 23 forthe passage shown in Fig. 1; The slot or groove 25 is of the conductors or electricwires 26, as

made of suflicient depth to receive the electric cords or wires 26, and securely embed the same without interfering with the adjustable collar 24; the slot or groove 25 being preferably made substantially U-shape in crosssect1on, as shown in Fig. 2.

The electric conductors or wires 26, which are usually entwined about the supporting element or chain portion of the fixture, enter the oblong hole atthe upper end of the member 23 from the side opposite to that provided with the slot or groove 25, and are passed down through the slot, as shown in Fig. 1, to the lamp-receiving socket where they are secured to their respective terminals in the usual manner.

The loop-portion of member 23 receives the adjacent loop or link of the supporting chain, indicated at 27; the chain being of a well known construction, with the uppermost loop or link of the chain passing through an oblong hole or opening in the lower end of my improved supporting stemor member 28. The lower end of supporting member 28, like the upper end of member 23, by reason of the oblong opening, is given the appearance of a loop or link of a chain, and also provides means for the passage of the electric conductors or wires 26. The supportin stem 28 is preferably in the nature of a so id rod with the lower end somewhat reduced like the upper end of member 23,

and provided with the oblong hole, as shown at 29; and one side of the rod or member 28 is provided with a longitudinally disposed groove or socket 30 which extends to a point near the upper end of the member 28, where it terminates inthe transversely disposed oblong hole 31, and thus provides a passage for the electric conductors or wires 26, which pass out through the upper end of the stem or member 28 into the conduit-box 32 and are there attached to the ends of the service wires which terminate in the conduit-box 32.

The upper end of the supporting member 28 is shown terminating in an annular shoulder 33 which is preferably internally threaded so as to enable the stem or member 28 to be screwed onto a threaded-stud 34 formed in or secured within the conduit-box, as shown in Fig. 1. The stem or member 28 is preferably made round in cross section and of a length sufiicient to extend from its attaching point in the conduit-box through the lower end of suitable canopy or she I, illustrated at 35, which is'adapted to encircle the opening in the wall or ceiling where the conduit-box is located. The canopy 35 may be secured to the supporting stem or member 28 in any suitable manner; Fig. 1 disclosing a construction wherein the supporting stem or member 28 has its lower end externally threaded so as to receive a suitable ring and clamp nut, as indicated at 36 in Fig. 1.

As is evident from the construction shown and described, the oblong holes and longitudinally disposed groove or slot in the supporting stem or member 28 provide suitable passage for the electric wires or conductors without in any way subjecting them to improper action by, or frictional contact with,

The lower end of the holder' 39 is flared or flanged, as shown at 40, so as to adapt it to engage with the inner surface of the shade 41; the annular shell or holder 39 being arranged to pass through the neck of the shade as shown. My improved shell or holder 39 is provided at its top with an opening for the passage of the bushing or collar 24, and one side is provided with a slot extending from top to bottom, as shown at 42 in Figs. 1 and 2, thus splitting the shell from top to bottom. The slot is of a width sufficient to receive the lug or lip 38, as shown in Fig. 1, and also permits the passage of the upper end of member 23 or link of chain 27. The slot 42, in the shell or holder 39, enables the shell to be inserted edgewise onto the supporting chain, so that the shell or holder 39 and the shade 41, as well as the bowl 43, may

be readily removed withoutany further disassembling of the fixture proper; it being understood, of course, that the holder 39 and shade 41 must first be put into placebefore the lamp 20 has been put into place.

The lower end of the shell 39 and, outer surface thereof is provided with an annular 46 at'equi-distances apart; the slots 46 being of sufficient dimensions to expose portionsof the split ring or spring wire 45, as shown in dotted lines 1n Fig. 2, andto the left in- Fig. 1. The slots 46 in the lower part of the shell 39 are adapted to receive, the hooks 47 at the upper ends of supporting elements 48, which may be either in the nature of rods or chains and whose lower ends are suitably formed to support the globe 43.

When it is desired, and in order to give wearer a collar 49 may be provided adapted to fit flared so as to incase snugly at its upper end about the shell or holder 39, while its lower end is enlarged or the upper end or neck of the shade 41; it being understood, of course, that this collar must be placed on the shell or holder 39 before the latter has been put into place.

With the fixture asse bled ashereirrbefore described, the shade and globe may then be adjusted relative to the lamp, or rather the lighting element of the lamp, so that the I direct rays of light, especially where high candle power lamps are employed, may at all times be kept within the shade and bowl so as to adapt the fixture to all purposes without permitting the escape of harsh rays of light, while at the same time obviating any objectionable shadows.

As is evident from the construction shown and described, namely with the ribor lug 38 seated in the slot 42 of the shell 39, the mere rotation of shell 39 about member 23 will cause the shade and globe or bowl 43 to be raised or lowered depending upon the direc tion in which the shell or holder 39 is rotated, so that the lighting element of the lamp 20 may be brought into a planebelow the horizontal plane of the top of the bowl 43 the relative position of the lamp may be uickly adjusted or altered without necessitating any changes or disassembling of set-screw 52, shown in the fixture or its respective parts.

In the construction illustrated in Fig. 1, the bowl is shown suspended from the shell vor holder 39 by rods 48, the lower ends whereof are bent into hook form so as to extend through suitable openings 50 formed in the bowl, as the bowl in this construction is formed without any attaching flange or rim at the upper edge thereof.

In Fig. 5, I show a modified form of my invention as well as illustrating a slightly different style of fixture. In this construction the canopy 35 is similar to that shown in Fig. 1, except that the lower end is provided with a slip-ring 51 rovi-ded with a detail in Fig. 6, and providing a well known construction whereby the canopy is secured up into place onto the supporting me ber or stem 28, which, so far as general construction is concerned, may be identical with the member 28 shown in Fig. l, with the exception that the stem or member 28 need not be externally threadedbecause theset-screw 52 of the slipring 51 will maintain the cane y in position.

The stem or member 28, 1i e member 28,

to the lower reduced end-which is provided with the oblong slot 29 and .which gives it the appearance of a link or l'oopof a chain,

' lengthwise adapted to receive the uppermost link 27 of the supporting chain or other sup-porting element that may be employed.

The attaching element 23 is shown similar in construction to that illustrated in Fig. 1, being externally threaded on its rounded surfaces and provided with a longitudinally disposed groove for the passage of the conductors or electric wires 26; the attaching element 23 being shown also provided with a laterally extending flange to which the lamp-socket 21 secured in any suitable manner. The attaching element 23 is provided with a bushing or collar 24 which is internally threaded and screws lengthwise of member 23, as previously described; the bushing or collar being provided with an annular shoulder which provides suitable sup-v port for the shell or holder 39 and which latter is provided with a slot-way 42, similar to that previously described and shown in Figs. 1 and 2, which enables the shell or holder 39 to be slipped onto the upper reduced end of member 23 after the lampsocket has been put into place; and this slot 42 also receives the lug or lip 38 formed on the bushing 'orcollar 24 so that the latter will be screwed lengthwise of member 23 when the shell or holder 39 is rotated. The lower end of the shell 39 is curled upward, as previously described, so as to provide an annular channel in'which is placed the splitring or spring-wire 45. The curled lower end of the shell 39 is provided at equi-distances apart with slots 46 adapted to receive the upper hooked ends of the supporting elements shown in the nature of chains 48 in Fig. 5. I

In the fixture illustrated in Fig. 5, no shade is employed and a different style bowl 53 is shown, the latter being shown partially in section and partially in elevation.

The upper end of the bowl 53 is provided with an outwardly flared-attaching rim so as to produce anannular groove at 54 adaped to receive ail-encircling wire or ring 55. The wire or ring 55 is provided with a suitable number of angular members or clips shown in detail in Figs. 7 and 8; the members or clips comprising the hopper body portion 56 provided with a hole 57 for the reception of the hook of the attaching element or chain 48; while the lower part of each member or clip is shown tions terminating in the hub-portions 57 57 provided with openings extending therethrough for the passage of the ring or wire 55. .The attaching clip or member shown iri'Fig. 7 is intended to receive the ends of the ring or wire 55; the ends of the wire being passed through the openings in the hub-portions 57*, 57 ahd then bent in the angular manner shown so as to revent the withdrawal of the wire.

bifurcatedfwith the bifurca v The clip or member shown in Fig. 8 is sub *1 30 stantially similar to that shown in Fig. 7, with the exception that the portion of the metal intermediate of the bifurcations is not entirelyput away but is left to provide the tongue 58, which is preferably given a slight twist so as to have the flat faces thereof presented in the direction of the bifurcated ends of the attaching clip or member.- The at- .taching elements or members are given the angular formation shown in Figs. 7 and 8 in order that they may extend over the top of the flange or rim of the bowl, as shown in Fig. 5; and in the fixture illustrated, two of the clips or members are like that shown in Fig. 8, while the third is like that shown in Fig. 7. The wire or ring 55 is .provided with a suitable number of the attaching elements or members, like that shown in Fig. 8, before the attaching ele-- ment shown in Fig. 7 is secured in place;

in other words, the ring or wire 55 is pro- Y the wire 55, as shown at 59 in Fig. 8, which will prevent any shifting of the attaching element or member lengthwise of the wire or ring, thus maintaining the members in proper position. The ends of'the wire or ring are not bent about the bifurcations of the member or clip shown in Fig. 7, until after the ring with its spaced attaching members or elements has been properly placed'about the bowl. The supporting elements or chains 48 are then hooked throughthe perforations 57 in the upper ends of the members, thereby supporting the bowl in position.

When it is desired to clean the 'fixture and the interior of the bowl, merely one of-the rods 48 need be unhooked from the attaching member or clip which'allows the bowl to swing downwardly into the position shown in dotted lines in Fig. 5; the tongues 58 of the clips or attaching members, together with the slight buckle or bend in the ring or wire, preventing any change in the relative position of the respective parts.

' Where my improved fixture is intended.

to be used in connection with a single bowl, the lamp may be provided with a reflector 60 which is slipped onto the neck of the lamp before the latter has been screwed into its socket, thereby cutting 05 the upward rays of light from the lamp and enabling them to be confined within the bowl through the proper adjustment of the-holder, and

therefore also of the bowl, lengthwise of the attaching element 23, so that the lighting element of the lamp will come below the horizontal plane of the upper edge of the bowl, with the result that all of-the direct rays of light will be properly reflected anddiflused toa desirable degree. and at the same time provide a shadowless unit without exposing the reflector to View.

The reflector 60 is shown somewhat funnel-shape; being provided with proper flare and desired curvatures, with the reduced" top or end being preferably formed with suitable slits, thus enabling the reflector to receive the reduced end or neck of the lamp being confined vwithin the bowl so that no direct rays are allowed to escape.

In Figs. 9 and 10 I illustrate a modified form of my invention wherein the bowl holder. in modified form is shown secured to a well known type of shell 61, the latter being shown in section with the upper end broken away, while the lower flanged end is provided with the usual set screws 62 placed at equi-distances apart, as more clearly shown in Fig. 10; the screws 62 being adapted to engage with the outwardly flared rim 63 of the holder 64. The lower edge of the holder is curled upwardly, as shownat 65 in a manner similar to the holder 39 so as to provide an annular channel adapted to receive the split rin or wire 66 which maybe similar to the sp it ring 45 shown in Fig. 1. The holder 64, like holder 39, has the lower flanged end provided with the ver-' tically disposed slots 67 which expose portions of the split ring or wire 66, as more clearly shown in Fig. 10; the slots being adapted to receive the upper hooked ends of the suspending, elements or rods 48 whereby the bowl or globe is suspended in place. 1 g

It is evident from the constructions shown and described that the element which I have termed a holder, and as disclosed in Figs. 1 and 5, is adapted to carry two pieces of glass, to-wit the shade and the bowl, so that the entire weight of these two members will be on the holder; it being understood also that instead of employin suspending elements in the nature of ro s 48, chains may be employed. It is clearly evident from the constructions shown and described thereof and terminating merger that the fixture may be readily adjusted to different. sizes of lamps without necessitating any rearrangement or alteration of the parts of the fixture; the adjustment being obtained by simply rotating the holder on the stem or rod element 23; furthermore, it is apparent from the construction shown that with the shade put into place on the holder, the chains or rods, whereby the lower bowl is suspended, will be locked in place on the split ring in the holder, thus pre- 1. In a lighting fixture, an electric lampsocket holding member or stem provided.

with. an opening extending transversely through the upper end thereof and an attaching flange at the lower end, while the outer surface of said stem intermediate of said openin and the flange is screw-threaded, interna 1y threaded means adapted to encircle said member or stem and screw lengthwise thereof, and a shell or holder provided with an opening in its top for the passage of said stem or member, the holder and said means being provided with interlocking surfaces whereby rotation of the one will be imparted to the other and adjustment of the holder lengthwise of said member or stem obtained.

2. A lighting fixture, comprising a holder or shell, the lower end whereof is provided with a channel provided with slots at predetermined distances apart disposed transversely of the channel, a split ring-or member mounted in said channel across'said slots, and bowl-suspending means adapted to extend into said slots and engage with said split-ring or member.

3. In a lighting fixture, a lamp-socket holding member or stem provided with a wire-receiving groove extending lengthwise at its topin an attaching end and at its ottom in an electric lamp-socket attaching flan e, the stem being threaded intermediate of its ends, a holder or shell: provided with an opening in its top and split from top to bottom so as to permit the insertion of said member or stem edgewise through the split portion of the shell or holder, and means adapted to screw lengthwise of said member or stem and have supporting relation with the inside of said holder or shell, said means beingegrovided with an extension or lip adap and disposedengage inthe split portion of the shell or holder whereby the shell or holder and said means are looked against independent rotation and adjustment of the latter relative to thelamp-socket permitted. j

4. A lighting fixture, comprising a lampsocket holding member or stem provided with screw-threads and with a wire-receiving groove extending from end to end and terminating at its top in an attaching end, a member threaded on said first member or stem so as to be adjustable lengthwise thereof, a holder'or shell provided with an open mg in its top for the passage of said first member or stem and arranged to have inter locking relation with said second member whereby rotation of said shell or holder will cause said second member and said holder to move lengthwise of the first member or stem, said shell or holder being provided with a channel at the lower end thereof, the

channel being provided at predetermined points with slots extending transversely of Y the channel, a compressible ring mounted in said channel so as to extend across said slots, and bowl-suspending means adapted to extend through said slots and engage with: said compressible ring.

5. In a lighting fixture, a one piece .supporting member or stem provided with an annular threaded socket at the upper en thereof, openings extending transversely through the stem adjacent the upper end and at the lower end and provided with a conductor wire-receiving groove extending lengthwise of the stem from opening to opening, the stem being externally threaded intermediate of said openings, and shellsupporting means threaded on said stem whereby a shell may be adjusted relative to the ends of the stem.

6. In a lighting'fixturepa one piece supposed lengthwise of the stem from opening to opening, the. lower end of said stem being screw-threaded, and means adapted to screw onto the threaded portion of said member or stem, in combination with a canopy or shell adapted to fit about said member or stem and be held in place by said means.

7 A lighting fixture, comprising a one piece supporting member or stem provided with a conductor wire-receiving groove extending lengthwise of the stem and provided with openings-extending transverse y of the stem adjacent both ends thereof, a lamp socket holding member or stem adapted to be suspended from said first mentioned member or stem, said lamp-socket holding member being externa y threaded and provided with a conductor wire-receiving groove extending lengthwise thereof, and a shell or holder having adjustable relation with said socket holdingmember or stem so as to be adjustable lengthwise thereof.

8. In a lighting fixture, a one-piece supporting stem provided with a threaded socket at its upper end and with a wirereceiving groove extending lengthwise thereof and terminating at both ends in openings extending transversely through the stem, and a ring adjustable lengthwise of the stem.

'9. In a lighting fixture, a bowl-encircling band, andmembers or clips, each provided with bifurcations at one end having openings for the passage of the band, while the open end is angularly disposed and provided with suspending means receiving opening, said clips being each provided with an aperturcd tongue, disposed intermediate of the bifurcations, having a band-receiving opening, the tongues being flexible to permit tw1sting so as to dispose them tangentially to the encircling band and form binding relation therewith.

10. In a lighting fixture, a bowl encircling band, and members or clips provided with bifurcations having openings for the pasnae'm si sage of the band and with flexible, apertured tongues disposed intermediate of said bifurcations and adapted to be twisted at an angle to the bifurcations so'as to form gripping relation with the band.

11. A lighting fixture, comprising an electric lamp-socket holding member, a bowlsupporting holder adjustable lengthwise of said member, and a downwardly and outwardly flared reflector arranged to have frictional engagement with the upper end said reflector having frictional engagement with the electric lamp and adapted to reflect the upward rays of light into the bowl.

' GEORGE M. BEARDSLEE. Witnesses:

BENJAMIN P. GEoRoE, GEORGE HEIDMAN.

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