Патент USA US2121430код для вставки
June 2l, 1938. ' E, F, GUTH FIXTURE 2,121,430 ‘ » Filed May 22, 1936 EQ «Us 9 ísatenteci `Íuine 17938 _, 2,121,430 cm1-'Ensures ., 2,121,430 ` . FIXTURE Y ` ÉdWinF. Guth, ‘Webster Groves,` Moi , vApplicationMay 22, 1936, Serial‘No. 81,262 ' 1. claim. ' (o1. 24o-_78) y "This invention relates to fixtures, and> with re lrgard to certain `more speciñc features, to'elec -'trical illuminating fixtures„ , ‘ ’ -Among the several objects of the invention ¿5 may be noted the provision of an electrical il luminating ñxture which is adapted to provide both direct and indirect illumination; the'- pro vision of a fixture of the class described in‘which the direct illumination is confined and controlled jm ‘in direction and intensity, to a desired degree; wires or the like 6,*»from the lower end of cap 4, is the fixture assembly comprising one ofthe "princip-alfeatures ofthe present invention. The. ’assembly includes a reflector bowl 1, which is4 usually of truncated conical type, and which 5 faces upwardly. The lower end» ofthe bowl 'I is extended as a cylindrical portion 8, which may `be provided with a series of ridges or set-back portions for the decorative effect obtained. The metal at the lower end of the cylindrical portion ‘ 10 the provision of ‘a fixture of the class described 8 is bent inwardly and somewhat back uponiit-` wherein the direct illumination is formed yenti-rely self to provide a flange 9. Resting on the edge , of approximately parallel rays; the provision of of the flange 9 is an upper, outwardly‘extending an electrical illuminating ñxture of the class de flange I0 of a cylindrical element II, the4 lower j15 scribed which is designed to provide »ideal il edge' of which is preferably likewise provided 15 i lumination for particular conditions, such as desk `with an outwardly extending- flange I2. At the lighting; and the provision of an electrical il points that they juxtapose, the flanges 9 and Il) luminating ñxture of the class described which -are preferably welded or soldered or otherwise is relatively simple and economical in construc secured together, in such manner that a space i Ã ‘20 tion. Other objects will be in part> obvious'and is Yprovided therebetween for receiving the an-"20 in part pointed out hereinafter. , ì .The invention accordingly'comprises the ele ments and combinations of elements, features of construction, and arrangements of parts which 25 will be exemplified in the structures hereinafter described, and the scope of the application of which will be indicated in the following claim. In the accompanying drawing, in which are il lustrated several of various possible embodiments of the invention, > Fig. 1 is a perspective view of a fixture embody ing the present invention; ' Fig. V2 is aV vertical section of the fixture of IFig. 1; Q35 Fig. 3 is a bottom plan view of the fixture of Fig. 1; and, _ . Fig. 4 is a vertical section similar to Fig. 2, il lustrating an alternative embodiment of the in vention. ,40 A Similar reference characters indicate corre sponding parts throughout the several views of the drawing, Referring now more particularly to Fig. 1, ‘ choring ends of the wires 6, so that said anchor l ing ends are not visible from the exterior of the fixture. The `ilxture assembly is directly sup ported, it will be seen, by the engagement of the wires 6 with the flange IU. 25 Numerals I3 and I4 indicate short cylinders of thin material, such as sheet metal, thatare supported on radially disposed bolts or the like I5, which are mounted on the outer cylinder II. The number of cylinders such as I3 and I4 that 30 are provided depends upon the type of direct light that it is desired to obtain from the fixture. For the majority of circumstances, the two cylin ders I3 and I4, as shown, are usually suiiicient. The inner surface of the bowl 1 is usually sil- 55 Vered or painted to provide a highly reñecting surface. The bowl 'I reflects light from the bulb 5 upwardly from thev fixture, ordinarily against the ceiling of the room, when it is reflected to the interior of the room providing an indirect 40 light component. At the same time, direct light is able to pass from the bulb 5 downwardly through the circular regions between the cylin there is shown a fixture embodying the present ' ders II, I3 and I4, providing a component of di .4-5 invention, which is particularly suitable for ceil rect illumination. The cylinders I3 and I4, and 45 ing mounting. Numeral I indicates a ceiling the inner surface of cylinder I I, are ordinarily plate by which the fixture is attached. Depend painted dead black, so that they reflect substan ing from the plate I is a tube 2, at the lower tially no light. For this reason, they permit sub end of which is secured an electric lamp socket stantially only light rays closely approximately ¿50 3 (see Fig. 2), which is enclosed by a cap-4. The parallel vertical rays to pass therethrough. The 50 socket 3 receives the upper end of an electric cylinders Il, I3 and I4, it will be seen, comprise light bulb or lamp 5, of the customary pear light-regulating louvres. shape. The cap 4 preferably extends down a In a preferred form of the invention, the flanges short distance over the neck of the bulb 5. 9 and IIJ are provided with peripherally spaced 1,35 Supported by a plurality of circularly disposed light ports or openings I‘I (see Fig. 1), through 55 2 2,121,480 which a small portion of direct and reflected light from the bulb 5 can pass. Such light illuminates the exterior surface of the outermost louvre Il, to give the fixture an attractive appearance. Some of this light further reflects from the inner face of flange l2 upwardly in order to illuminate the under surface of bowl 1, likewise for' the sake of appearance. Some such reflection takes place even when the louvre Il is painted dead black. While the shape of the direct-light regulating louvres 'has been shown as circular, it will be ap parent that this is not altogether necessary. For example, the louvres may be made in any form or shape, in order to obtain ‘whatever shaped region of direct illumination is required. ’I'he combination of indirect light reflected from the ceiling of the room and direct light issuing from the louvres of the fixture of the'present in vention make the fixture ideally suited for such the bottom edge of the cap 4. It is directed down wardly, so that the rays from the bulb 5 that normally would travel upwardly are at least in part reiiected back downwardly toward the direct lighting louvres. Lighting for indirect illumina tion purposes then escapes from the fixture only between the outer edge of the bowl I6 andthe outer edge of the bowl l, and is somewhat re duced in volume, while at the same time, the vol ume of direct lighting, by reason of the directing 10 eiTect of the reflector I6, is proportionately in creased. `The embodiment of Fig. 4 has the added ad vantage of being capable, by suitable design, of being made vertically thinner than the prior em 15 bodiment, because the angle of the bowl 1 need not be so steep. In View of the above, it will be seen that the several objects of the invention are achieved and 20 other advantageous results attained. Forv such illu -As Ímanychanges could be made in carrying >mination, it is ordinarily 'desirablethat a rela ,tively high intensity of» indirect light be `provided _out the aboveconstructions without departing withinthe room containing the desk,~but thatan from the scope of the invention, it is intended even higher lighting intensity, be providedv on the rvthat all matter contained in the above descrip >working surface of the desk. `If the fixture of tion or shownin the accompanying drawing shall the present invention is 4‘located vertically above Ybe interpretedas illustrative and not in a limiting 20 purposes as desk illumination. «the desk, it will readily be seen that the »direct ¿illumination-from the fixture is `provided on the ¿working top of the desk, while the indirect illu mination from the ceiling provides the necessary lighting intensity in other portions Aof the` room. sense. I claim: In an electrical illuminating fixture, a light source, a reiiecting bowl surrounding said light 30 source and adapted to provide for indirect illu `The louvre system of controlling the ldirect illu 4mination,and louvre means at the base of said Vmination isl highly satisfactory, as it can be made, vbowl, said louvre means being adapted to provide for direct illumination from said light source, ¿at a minimum cost of parts,- to provide a `well directed, direct illumination that is Yconi’ined'to Vsaid louvre» means comprising a series of concen tric iigures formed of sheet-like material, and .light portsat the base of said bowl providing for >sheet metal, which is most-economical to handle exterior Villumination of the outermost louvre, al limited area. f Further, with-theV fixture as-thus described, lsubstantially all parts 'l are made- from and to finish in pleasing designs and colors. Fig.l 4 shows an alternative embodiment of- the invention'- which'differs from the embodiment al _ready described only in that a bowl-shaped» re fiector` I6 is provided around the neck of the-bulb 5. YThe bowl reflector I6 is ordinarily securedto , said outermost louvre being provided with an out wardly extending flange adapted to reiiect light, 40 from the light ports to illuminate the under- sur face of said bowl. EDWIN F. GUTH.