US2054014A - Light reflecting device - Google Patents

Description

Sept. 8, 1936. c. E. WALTMAN LIGHT REFLEGTING DEVICE Filed Jan. 15, 1934 I 615,221; 10 jjgCZa ggf cziim i r a",

Patented Sept. 8, 1936 2,054,914 Llqnr BEFLECTING n vIc Chauncey E. Waltman, Chicago, Ill., assig'nor to Sandel Manufacturing;,"Chicago, Ill.,' a'cor notation of Illinois ta ma an r 15, 1934, Serial No. 706,595

" 1 claim. (01. 240- -s1 The invention relates to improvements in illuminating devices, an more'partic'ularly to an indirect lighting device; p iThemair 1"objectofthis invention is to pro- 5 vid a device of this characterfadapted to reflect the rays of light from the burner upwardly against the ceiling 'and' which has associated therewith meansfor diffusing downwardly and outwardly '"proje'cted rays forthe purpose of illuminating ,9 a 's hade which conceals the main reflector and source of light, whereby an ornamental effect may be produced updn the shade." 11i 'airilluminatingf device of this character heretofore used, the reflector issurrounded by a s'h'a'de'fwhich-shade conceals the reflector and source of light, and by' reason of the reflector bemgt: opaque construction the shad'eis not illuminat'ed when the indirect light i's'in'usef In order to produce local illumination and also to 20 illuminate the shadefthesedevices generally providesid lights surrounding the main reflector. Thus when is desired to" produce the necessary illumination for the shade, itcan be done'only by the illumination of the side lights. 2 5 It is one of the objects of this invention to provide the main reflector which produces the indirect *illuminatiom with a glassf'l'ight diifusing member adjacent the lower portion thereof; which member will be 'eiiecti've when the indirect light 0 is in'use'to diffuse sufiicien't downwardly and outwardly projected rays for illuminating the shade. This it has been'found can be accomplished without reducing to any material extent the indirect illuminating eiiect. 35 Another object of this invention is to provide in a device of the character described an opaque reflector whichhas'associa'ted therewith adjacent the lower portion meteor a glass" lightdifiu'sing member for difiusing downwardly and outwardly p'rb'j'cted rays for the purpose of jilluminatingthe shade which conceals the reflector,

A' still further object of this invention is to provide ina device of the characteridescribedan opaque reflector arranged around a source" of light so as'to substantially reflect the entire light rays emanating from said source upwardly against th e 'ciling; 's'aid opaqu'e rflector having at its lower portion a glass light diffusing member surrounding the stem of the light bulb and which will 50 be effective for difiusing the downwardly and outwardly projected rays of the light source for the purpose of illuminating the shade which is arranged around said main reflector for concealing the same. 55 A still further object of the invention is to provide a device of the character described which will be simple in construction, assembly and operation and which maybe produced along lines convenient, for low cost manufacture and which will be highly efficient for carrying 'outthe purposesfor'which it is designed.

With theforegoing and other objectsin view, which will appear the description proceeds, the invention cgnsistsin' the several novel features of' construction, arrangement and combination limp parts, hereinafter more fully described, illustrated in the accompanying drawing, and particularly pointed out in the appended claim, it being understoodthat various changes in theform, proportion, size and minor details of the structure may .bemad-ewithout departing from the spirit or salerificingany of the'advantages of .the invention. For the purpose of facilitating an understanding of my invention,,I have illustrated in tl i e accompanying drawing a preferred embodiment thereof from an inspection of which, when considered in connection with the following description, my invention, its mode of construction, as-

sembly an d' op'eration, and many 'of its advantages shouldf'be readily understood and abpreciated. I Referring to the drawing, the figure illustrated therein is a viewpartly in section and partly in elevation of an: embodiment of my invention as arranged in a portable or'stand lamp. Referring to the drawing more specifically by characters of reference,=the numeralv l9 designates-a pedestal or stand, preferably formed of hollow material or tubing, as is well known in the art,v and is provided at itsupper end with a 3,5 holder or support ll from whichextend the side or external lamps. the embodiment. illustrated, I have shownmy invention as being adaptedto that type of lamp generally identified in the art as an indirect lightinglamp and which 40 has associated therewith external lamps which may be of a construction adapted to simulate candle'lamps. From the holderll extendhollow arms l2 which terrninate at their free' e'nds in su a le minih p d "fixtures. o rack ts 4 within' 'which brackets are adapted t befsupport'ed tubular bodies or sleeves'T l which may be constructed of a material such as fiber or the like, suitable for simulating candle sticks. Received within the upper ends of the sleeves M are incandescent lamps I5, which lamps will provide the local or direct illumination.

Supported above the holder II on the pedestal I0 is a hollow member IS, the upper end of which is internally threaded, as shown at H, for a purpose to be presently more fully described. Mounted within the hollow member I6 is an incandescent lamp securing bracket fixture |8 equipped with the usual pull chain switch (not shown), the chain of which is received through an opening (not shown) formed in the member |6 whereby the switch may be actuated for energizing the electric incandescent lamp |9 disposed within the fixture l8, which lamp may be of the desired voltage.

In order to produce the indirect projection of light rays emitted from the lamp 9 with energization of its filament, I provide the bowl shaped reflector 20, which is made up, as shown in the drawing, with the side walls flaring outwardly and upwardly from a central opening 2|, the inner surface only of said reflector possessing reflective properties, so that the greater or substantially all of the light from the lamp I9, 'ar ranged within the reflector 20, will be thrown upwardly against the ceiling. The lowermost edge of the reflector 20, surrounding the opening 2|, is formed in the shape of an annular depending flange or collar 22 which is adapted to be spun around the upper edge of a barrel shaped glass diffuser 23, the bottom edge 24 of which is adapted to fit into and be supported by the cup shaped metal member 25, provided at its lower end with external threads for screw threaded engagement within the hollow member 5.

The glass light difiusing member 23 is arranged in relation to the lamp I9 and reflector 20 so as to provide for the diffusion of the rays of light that pass downwardly through the central opening 2| in the reflector 20 and also from that portion of the lamp l9 that extends below the bottom of the reflector 20. The reflector 20 and its associated difiusing member 23 are so disposed with respect to the lamp l9 that substantially all of the light rays emitted from the lamp will be projected upwardly by the reflector 20 and only a minor portion of said light will be permitted to pass downwardly through the opening 2| to be diffused by the member 23 for the purpose of illuminating a shade 26 of any suitable and well known construction, which shade is not only useful for shading the light |5, but is also effective for concealing the indirect reflector structure and the source of light, thereby giving the desired ornamental appearance to the device which is necessary in articles of this class.

In order to support the shade 26 upon the reflector 20, the upper portion of the shade is provided with a suitable wire frame 21 which is adapted to be loosely seated upon a shouldered flange 28 provided therefor upon the normal upper end of the reflector 20.

From the foregoing it will be readily understood by those skilled in the art that I have provided a lamp structure primarily adapted for producing indirect illumination which will provide for the desired illumination of the shade concealing the reflector and light source when only the indirect light is in operation.

The lack of illumination for the shade when the indirect lamp is in operation has been one of the major defects in devices of this character. It will also be noted that this illumination for the shade is provided at practically no loss of indirect illumination. As already explained substantially all of the light rays emitted from the indirect lamp will be reflected by the reflector 20 and only a very small portion of said light rays are permitted to pass through the central opening 2| by reason of its constricted size for the purpose of being diffused by the diffuser 23. This small portion of the light rays, however, has been found to be sufiicient for the purpose of providing the desired illumination of the shade.

Attention is also invited to the fact that the reflector 20, its associated diffuser 23 and supporting member 25 may be readily assembled and connected to each other by simple spinning operation resulting in a unitary construction which will be of a durable character and which may be assembled in a minimum of time and at a minimum cost for labor and materials.

It is believed that my invention, its mode of construction, assembly and operation, and many of its advantages should be readily understood from the foregoing without further description, and should also be manifest that while a preferred embodiment of the invention has been shown and described for illustrative purposes, the structural details are, nevertheless, capable of wide variation within the purview of my invention as defined in the appended claim.

What I claim and desire to secure by Letters Patent of the United States is:

A combined direct and indirect lighting fixture comprising a vertical standard, a lamp socket carried at the upper end of said standard, a socket cover surrounding said socket and having the upper portion thereof internally threaded, and a light reflecting and diffusing member supported in said socket cover by threaded engagement with the upper portion thereof, said last mentioned member comprising an opaque reflecting portion formed so as to project the light rays from a light source disposed within the socket in an upwardly and outwardly direction, said opaque reflecting portion being provided at its lower end with a central opening surrounded by a depending annular flange, and a barrel shaped glass-like diffusing member having its upper end secured within said depending flange of said reflecting portion and extending downwardly to surround the lower portion of the light source, the lower portion of said barrel shaped diffusing member being rigidly secured to an opaque support, the lowermost portion of which is in threaded engagement with the socket cover, the opening in said reflecting portion being of a relatively small size to permit only a small portion of the rays emitted from said light source to pass downwardly through said opening to be diffused by the light diffusing member, the lowermost portion of said light reflecting and diffusing member being arranged so as to close its bottom opening and prevent passage of light rays therethrough.

CHAUNCEY E. WALTMAN.

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