US1622548A

US1622548A - Lighting fixture

Info

Publication number: US1622548A
Application number: US65639A
Authority: US
Inventors: William H Spencer
Original assignee: I P FRINK Inc
Current assignee: I P FRINK Inc
Priority date: 1925-10-29
Filing date: 1925-10-29
Publication date: 1927-03-29
Anticipated expiration: 1944-03-29

Description

` March 29, 1927.

' w. H. SPENCER LIGHTING FIXTURE v Filed Oct. 29, 1925 -4 Sheets-Sheet l' WITNESS lNvENToR AITORNE'Y -I Mardi 29, 1927. 1,622,548

w. H. sP'ENcR LIGHTING FIXTURE Filed oct. 29. 1925 4 sheets-Sheet 2 INVENTOR WTNESS Z7 4 Z7 WML/AM #SP5/vez?? 1,622,548 M-ch Z9 1927 w. H. SPENCER LIGHTING FIXTURE Filed oct. 29, 1925 4 sheets-shet s INVENTOR www H. Mm

W. H. SPENCER LIGHTING FIXTURE March 29; 1927. 1,622,548

Fi ed Oct. 29, 1925 4 Sheets-Sheet 4 WITN E55 Patented Mar. Z9, 1927.

WILLIAM I-I.

SPENCER, OF BOGOTA, NEW JERSEY, ASSIGNORTO I. I. FRINK, INC., 0]?

LIGHTING FIXTURE Application mea october 42e, 1925. serial No. 65,639.

`places for which such fixtures `may be adaptable.

One of the objects of my invention is to provide -an improved construction inlighting fixtures of' this character `whereby an evenly fdifl'used illuminationy may be obtained in a simple and effective manner without spots or shadows. By means of my improved construction .a perfectly .even light maybe diffused upon and `thruthe light-transmitting panels of said fixturefno mattenhowtranslucent they maybe ork how delicatelylthey may betintedor decorated.

Anotherobject of invention is to l.provide a light fixture of improved vconstruction whereby the illuminating effects from light sources of different character and intensity .maybe utilized separately or incon junction. n i l My invention contemplates furthermore, an improved construction forlamp fixtures in which `the illumination may be derived Vfrom,'ligli1;-sources out of the line of vision. Other and particular objects `of invention will appear yin the specification and be pointed lout in the appended claims, reference being had to the accompanying drawings inwhich i Figure 'l Ais a side elevation of one 4embodiment .of my invention, parts being brolren away and parts shown in section; i

Figure 2 is a horizontal section of the same on a plane immediately above the linelamentlampsiwhich are shown` in plan;

Figure 3 is a horizontal section of another embodiment of my invention, .parts being broken away and parts `being shown inplan; Figure l is an enlarged fragmentary plan viewof' the `bottom, frame and panels laccording to this adaptation of my invention;

tion, partsv being broken away l,and parts shown insection;` and i Figure 8 is an axial section of another embodiment, parts beingshown in elevation.

According ,to the adaptation `of' my in- -vention shown .on Figures 1 and .2 of the drawings, line-filament lamps ll Lhave their Vdisposed sides 4l and 5. `Said top plate 8 is inclined downwardly and outwardly toward the lower inner corner ofa housing vwhich, as shown, comprises a lower rectangular molding 6 of a sheet metal, an upper rectangular molding 7, a top wall 8, and cornerpieces 9 which rigidly unite the upper and lower moldings. ,The lower molding 6` is provided with an inwardly-presented flangel l0 upon which rests Fa `glass lpanel ll which may be transparent, Atranslucent to any desired degree, tinted, or decorated.

rlhe outerV edges :of said panel 11 is disvposed below the lamp-supporting trame,

said panel being confined thereby. Vfithin the channeledupper edge of each side of the lower molding 6, is seated a side y,panel l2, the upper edge of said panel being similarly embraced by the channeled lower edge of theupper molding 7 whilethe ends ofsaid `panels are support-ed by the corner pieces k9,. A reflector lmay be arranged above `the .upper edges of the `side-,panels l2 by prof,

viding a reflecting surface on 4the underside ofthe top wall 8. -Light emitting means arranged belowthe top wall 8, -comprise,

according to the present embodiment of my invention, cluster of lamps 13 projecting ing preferably disposed within the dihedral angles formed by the side panels l2. lf desired, the top` wall S may be rigidly mounted "as for example, y.by being secured to the ceiling' of a room. 7

1` For convenience in care and for the replacement ot parts, the lamp housing may be constructed yin movably connected sections. For example, the upper molding 7 may be connected tothe fined top wall S by means of a hinge 15 which permits the bottom and vside walls of the housingl to swing downwardly and away from the cluster-lamps 13. Vhen @thus constructed suitable locking screws 1G may be 1provided for 1holding the housingr parts together under normal conditions of use shown in Figure l. Extend- .from a quadruple socket 14, said lamps be` IUC i ing around and conforming to the inner perimeter of the lamp-supporting frame so as to cut off the direct light rays from the lamps 1r` from the bottom panel ll, is an opaque strip or flange 17 the line-filaments employed in this embodiment of my invention 4being therefore arranged below the vision line.

ln Figures 3 to 6 inclusive, I have shown an arrangement of hidden light-sources extending radially from a common center, said light-sources being preferably line-filament lamps. i'lrecording to this embodiment of my invention, the lamp-housing may be made substantially cylindrical in contour by constructing it with a plurality of partcircular panels 20. As shown in Figure 3, the vertical edges of these curved panels 20 may be disposed in channeled sections 2l, 2l, arranged in pairs for this purpose and rigidly secured above to an upper frame or molding 22, the lower ends of said sections 2l, 2l, being secured to a circular frame or channel 23 within which the bottom edges of panels 2O are seated. In this adaptation of my invention, the upper section of the fixture comprises the upper frame or molding 22 provided with a top wall 2st having its inner surface adapted to serve as a re flector, the lateral wall including panels 2O and channels 2l, and the circular bottom frame or channel 23. Hinged to this upper section by a pintle 25, is a bottom section comprising a circular frame or molding 26, a plurality of panel sectors 27, a central cap or hub 28, and a plurality of radially disposed lamp supports or ribs rigidly uniting the cap or hub 28 to the circular frame or molding 26.

According to Figure 5, each of the radial lamp-supports or ribs comprises a channeled section 29 provided with outwardly presented

flanges

30, 30, upon which rests the approximately radial edges of the sector panels 27. An inverted channeled section 3l arranged within each section 29 provides a flat plate or support upon opposite ends of which are arranged suitable lamp sockets 52, :ln said sockets are mounted the. opposite ends of line-filament lamps 33. A transverse section of one of these lamps is indicated in Figure 5, the line of vision with respect to the filament Se thereof, extendingl over the upper edges of plates or flanges 35 which have their lower edges interposed between the flat sides of channels 29 and 3l.

According to the embodiment shown in Figure 7, an upper section 40 similarly constructed to the upper section shown in Figures 3 to t3, may have a hinged connection il with a lower section 4t2 which is similarly constructed to that shown in Figures 3 to 6 except that the line-filament lamps 43 are arranged on downwardly inclined axes with respect to a common center. A releasable catch or fastening 44 may serve to hold the sections together under normal operating conditions. Y

By the elimination of side wall panels 2O shown in Figure 7. a more compact arrange ment may be had as shown in Figure S according to which the light-sources t5 are arranged on radial inclined axes with re spect to a central light-cluster 46 depending from a 'top retiector wall 41:7. The movable lamp-supporting frame in this embodiment of my invention, is pivotally suppin'ted at t8 and provided with a releaaable fastening 4t). Each of the line-filament lamps d3 and 45 with its underlying radial support, is sub-A stantially similar to that shown in l `ignre 5,

For convenience in explanation and with a view to rendering the underlying principle of my invention more readily understood, have more especially confined the foregoing` description to the embodiments shown on the accompanying drawings, It will be understood, however, that the particular details shown and described are to be taken as illustrative forms in which the elements of my invention may be made to appear. Thus, for example, with respect to the type and numbers of lamps employedr4 shapes of the fixture, and general arrangement of parts, the terms occurring in the claims are to be taken in a generic sense. lllhile line-lilament and tubular lamps are preferably employed in connection with the lower framework of the fixture since it thereby becomes possible to malte such lower framework of smaller size, it will be understood that other types of lamps may be used to secure broadly similar results without departing from the principle of my invention. Furthermore, the fixture may be made of any desired shape such as round, square, hexagonal, ctc.l` etc., while the relatively-movable sections of the fixture may be connected at any suitable point or in any suitable manner as may be found desirable in any particular installation.

As an illustration of the advantages to be derived from an installation which embodies the hereinbefore described features, it may be noted that when the central cluster of lamps is not in use, a soft indirect light may be had from the other light-sources which are preferably line-filament lamps arranged to be hidden by the lower frame or molding G. This holds true even tho transparent glass be employed for the side and bottom light-transi'nitting panels. Under these conditions, a perfectly even light is diffused on and thru the glass panels and whatever the translucent property of the glass may be and however delicately it may be tinted or decorated, there will be no light spots or shadows to be observed. `When a light of higher intensity is desired. the central lamp or cluster may be switched on separately or fill `neaaisae in combination with themasked lineefilament lamps.

I claim- 1. In a lighting fixture, lthe combination with a housing provided with yadjacentlydisposed light-transmitting panels and a frame member supportingftheadjacent edges ci' said panels, of a light source y.mounted .upon said frame fmembcr, means for cutting off `the direct light rays from .said .light source to one of said panels, `anda reflectorcooperatively arranged `withrespect to said light source and :the `last-mentioned ,panel 2. `In a vlight-ing fixture, lfthe combination with a housing provided with two lighttrzimr-fmitting` :panels arranged at angle to each other, oil a light source arranged inthe angular space between said panels and adjacent to contiguous edges of said panels, said light source projecting direct light rays upon one of said panels, means for cutting off the direct light rays .trom said light source on to `the other ot said panels, and a reflector cooperatively arranged with respectto said 'light source and the last-mentioned panel.

3. In a lighting fixture, `the combination with a housing yprovided with outwardy aresented liOht transmittingv )anels of light D D 7 D sources arranged within said housing and along the `edges oft said panels, and a reflector arranged across the oppositeedgesof said panels, said .housing being provided with a light transmitting panel oppositely disposed with respect `to said refiector.

4. In a lighting fixture, the combination with a housing `comprising light-transmitting lateral walls, `a light-transmitting bottom wall, and a light-refieeting top wall, of light sources arranged adjacent the adjoining edges of'said lateral 'and bottom walls, and another light source arranged adjacent s; id .reflecting surface.

5. In a lighting tfixture, the combination with a housing provided with Itwo lighttransmitting panels arranged at angle to each other and havingcontiguous edges, of a light source arranged in :the angular space between said lpanels and adjacent toone ed of' one ot' said panels, a reflector disposed beyond theopposite edgeioi that panel and cooperatively arranged :with respect to .said light source and the other of said panels, and ymeans for .cutting off 'the direct light rays from. said light source on to the lastmentioned panel.

6. In a lighting fixture, the combination with a housing comprising lateral walls provided with light-transmitting panels. of light-sources arranged within said housing and along the edges of' said panels, and other light-sources centrally disposed with respect to the plane of the upper edges of said light-transmitting panels.

7. In a lighting fixture, the combination with a housing provided with light-trans- -mitting panels in theside andv bottom walls of said housing and an :inner :reflecting top .wall, light sources arranged adjacent to the bottom wall of said 'housing and symmetrically with respectito the vert-ical axis of said housing, said `light sources being disposed .to project upwardly-directed oblique .light ra-.yson-said side wall panels, imeans for cutting-off the direct light rays from said light sources on to ithe bottom wall panels, and light-emitting means centrally disposed with respect `to said side-'wall and bottom-wall panels, said inner .refiecting itop wall being :cooperatively .arranged with respect to said light sources and said bottom wall panels.

8. In a lighting fixture, "the `combination with a housing having side and bottoniwalls ofespectively provided with light-transmitting panels, of alight-source arranged `within saidfhousingto project direct lightrays thru said sidewall panel, a :reflector cooperatively ,arranged with respect to said light-source and the bottom wall light-transmitting panel, and means for cutting off the direct light rays from said light source to said bottom vwall panel.

9. In a lighting fixture;` the combination with a housing provided with two lighttransmitting panels, of a light-source arranged `within said housing to the project direct light rays thru both of said panels, another light-source arranged within said housingrto project direct rays of light thru :oneof said panels, a `reflector' cooperavltively arranged with .respect to the last mentioned `light-sourceand the other of said :panels and means for intercepti'ng the direct light rays 'from said last mentioned light source'to the last mentioned panel.

10. In a lighting fixture, the combination with a housing provided with light-transmitting panels inthe side and bottom `walls thereof and an inner reflecting top wall, light sources arranged adjacent to the bottom wall of said housing. to project upwardly-directed oblique light rays on said side wall panels,` means 4for cutting ofi the direct light rays "from said light sources on to the bottom wall panels, and lightemitting means centrally disposed with respect to said side-wall and bottom-wallipan- .els ind acent to said :inner reflecting Itop wa f 11. In a lighting fixture, the combination with a housing pro-vided with multiple light-transmitting panels in the side and bottom walls of said housing and an inner reflecting top wall, of' a multiple lampsocket depending from the center ofi' said reflecting vtop wall, lamps mounted in the lamp-receptacles of said multiple lampsoclzet, said lamps being presented toward the side-wall panels respectively, light sources arranged adjacent to the bottom wall of said housing and below the line of vision at the bottom of said side-wall panels, and means for cutting off the direct light rays from said light sources on to the bott-om wall panels.

l2. In a lighting fixture, the Combination with a housing provided with two lighttransmitting panels, of' two light sources within said housing, one of said lightsources being arranged adjacent the top wall of' said housing and the other lightsource being arranged along the edge of one of said panels, a reflector cooperatively arranged with respect to the other lightsource and one of said panels, and means for intorcepting the direct light rays from the last said light-source to the last mentioned panel.

13. In a lighting fixture, the combination with a housing provided with light-transn'iitting panels, of light-sources arranged along the edges of said panels, other lightsources arranged opposite to said panels, means for intercepting the direct light rays from the first-mentioned light-sources to said panels, and a reflector arranged opposite to said panels and first-mentioned light-sources and centrally with respect to all of said light-sources.

lll. In a lighting fixture, the combination with a housing provided with a light-reflecting top wall and light-transmitting side and bottom walls, a light-source arranged within said housing to throw direct light rays thru the side Wall of said housing and refiected rays thru the bottom wall of said housing, and means for cutting off the direct rays of light from said light-source thru the bottom of said housing.

l5. The combination with a lamp-housing provided with lateral and bottom lighttransmitting panels and a top reflecting wall, of lamp-supporting bases arranged along the adjoining' corners between said lateral and bottom panels, said lamp-supporting bases being inclined upwardly and inwardly from said adjoining corners between said lateral and bottom panels,r lamps mounted on said lamp-supporting bases and between said base and lateral panels, and a lamp depending from said top reflecting Wall.

16. In a lighting fixture, the combination With a housing provided with a bottom frame comprisinga plurality of radially arranged supporting members, of a plurality of light-transmitting panels provided with radial edges supported by said supporting members, lamps mounted upon said supporting members, said supporting members being provided with laterally-presented flanges arranged to cnt oli' the direct rays of light from said lamps to said panels, an inner top reflecting wall adapted to refleet the light from said lamps to said panels, and side wall light-transmitting panels arranged between the outer ends of said supporting members and said inner reflecting top wall.

l?. ln a lighting fixture, the combination with a housing provided with a bottom frame comprising a plurality of radially arranged supporting members, oit a plurality of' light-transmitting panels provided with radial edges supported by said supporting members, lamp-sockets mounted at` opposite ends of cach of said supporting members, line-filament lamps mounted in said lamp sockets, light-intercepting plates mounted on said supporting members, said plates being arranged on opposite sides of said lamps for cutting oft the direct rays of light from said lamps to said panels, an inner top reflecting wall adapted to reflect the light from said lamps to said panels, and side wall light-transmitting panels arranged between the outer ends of said supporting members and said inner refiecting top wall. i

18. In a lighting fixture, the combination with a housing provided with a bottom frame comprising a plurality oi radially arranged upwardly-diverging simporting members, of a plurality of light-transmitting panels provided with radial edges snpported by said supporting members, lamps mounted upon said supporting members, said supporting members being provided with laterally-presented flanges arranged to cut of'tl the direct rays of light from said lamps to said panels, an inner top reflecting wall adapted to reflect the light from said lamps to said panels, and side-wall lighttransmitting panels arranged between the ripper ends of' said supporting members and said inner reflecting top wall.

WILLIAM II. SPENCER.

lno