US996154A - Illuminating device. - Google Patents

Description

i W. H. SPENCER.

ILLUMINATING DEVICE. APPLICATION rmzn 11110.21, 1610.

Patented June 27, 1911.

5 SHEETS-SHEET 1.

W. H. SPENCER. ILLUMINATING DEVICE. APPLIOATION FILED M10. 27, 1910.

Patented June 27,1911.

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W. H. SPENCER. ILLUMINATING DEVICE. APPLICATION FILED DEG. 27, 191o.

Patented June 27, 1911.

3 SHEETS-11331 3.

II S w W a m m ru m m M WITI?ES:

WILLIAM H. SPENCER, OF NEW YORK, N. Y., ASSIGNOR T6 GEORGE FRINK SPENCER, 0F NEWARK, NEW JERSEY.

ILLUMINATING DEVICE.

Application filed December 27, 1910. Serial No. 599,471.

T 0 all whom it may concern:

Beit known that I, VVILLIAM H. SPENCER, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Illuminating Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

The present invention relates, generally,

to improvements in illuminating devices;-

and the invention refers, more particularly, to a novel construction of illuminating device adapted to be used in connection with book-keepers desks, bank desks, reading desks, display tablesvand cabinets and for other similar uses.

The present invention has for its principal ob3cct to provide an illuminating device comprisin a novel construction and a1- rangement of lighting units with reflectormembers and shades, and standards for properly supporting the same, all being arranged and combined in such a manner, so that when placed in proper relation with desks, tables, or the like, the light-rays will be controlled and directed so as to produce an even illumination of the entire surface of the desk, table or the like, and at the same time so arranging the reflector angles, so as to throw the maximum light-flux to the farthest point to be illuminated.

A further object of the present invention is to so arrange a reflector-member and a supportin means therefor, to obtain the highest iluminating efficiency upon the working surface of a desk, table, or the like, at the same time shielding the eyes from both the direct and indirect glare or rays of the lighting units; and, furthermore, dis tributingsaid lighting units and reflectormembers, so that the. light-flux is directed from the variousretlector-points or sources, causing such a difi'usion'thereof as will eliminate shadows and the glare or reflection of white paper, whether the clerk or other person usm said desk, table, or the like, is working in either a left hand or right hand position.

parts, as well as in the details of the con-.

struction thereof, all of which will be here: inafter more fully described, and then finally embodied in the clauses of the claim which are appended to and which form an essential part of this specification.

The invention is clearly illustrated in-the accompanying drawings, in which Figure 1 is a side elevation of a double desk equipped with the novel construction-- of illuminating device made according to a and embodying the principles of the present invention, a portion of said desk being shown broken away. Fig. 2 is a large detail cross-section of the same, taken on line 2-2 in said Fig. 1, and looking in the direction of the arrow :12. Fig. 3 is a similar large detail cross-section of the novel construction of illuminating device, the same being applied to a single desk, and being slightly modified in construction so as to suit its use with said single desk.

Similar characters of reference are employed in all of the-above described views, to indicate corresponding parts.

Referring now to the said drawings, the reference-character 1 indicates a double desk provided with the respective working surfaces or tops 2 and 3 which extend upon either side of its central longitudinal portion 4. Secured u on said central lon itudinal portion 4 of said double desk 1,%y means of baseeportio'ns 5, of any suitable configuration or design, is a plurality of supe porting columns or standardsfi, said co umns or standards 6 being provided with suitable heads 7 at their upper ends. Ex-

t-endin laterally and horizontally from said heads and in opposite directions, is a pair of-supporting arms or brackets 8 which are provided with receiving grooves or sockets 9, located adjacent to the free ends of the said supporting arms or brackets, and in the upper surface thereof. i

The reference-character indicates a combined reflector casing and lamp shade,

" being adapted to be received. in said receiving grooves or sockets 9 of said supporting arms or brackets 8, to support the said combined rellector casing and lamp-shape 10, as the latter extends longitudinally from end to end of said desk 1.. Said sidewalls 11 are each further provided, at a point adjacent to their lower marginal edges, with an outwardly projecting sti'liening head or rib 13. Formed in the top wall of said combined reflector-casing and lamp-shade 10 is an upwardly projecting and longitudinally extending trough-like member 14, adapted to provide a wiring trough or conduit, and extending into said trough-like member 14 are the side-walls 15 of a suitably formed lamp-supporting member 16, said side-walls 15 being suitably secured, in any desirable manner, in their assembled relation to said trough-like member 14. Said lamp-supporting member 16 is provided, at suitable intervals throughout its length, preferably twelve inches apart, with holes. or openings adapted to receive the sockets 17 of suitable lamps 18. Each socket 17' is provided with an annular flange or rim 19 for retaining said sockets in their assembled relation with said lamp-supporting member 16. The wires 20 of the said lamps 18, passing through said sockets 17, enter the interior of said trough-like member 14:, where they may be secured in any suitable manner to the main or feed-wires 21 passing therethrough; Secured upon the inner sides of the said walls 11 of said combined reflector-casing and lamp-shade 10 are a series of reflectormembers 22, the same being supported by channel bars 23, or any other suitable devices, fixed upon said walls 11. Said redoctor-members 22 are disposed and secured in such a manner, so as to present a series of angularly disposed reflecting surfaces, each reflecting surface lying in the lane of a chord of said concave walls 11. aid reflector-members 22 may be made of silvered glass, or any other suitable material. The

' top wall of said combined reflectorcasing and lamp-shade is provided with a plurality of holes or openings 24, which permit of the ventilation of the interior. of said combined reflector-casing and lamp-shade, said'holes serving to conduct away the heat generated by said lamps, thereby preventing the heat collecting-and causing a more rapid disintegration'of the lamps.

Referring now to Fig. 3 of the'drawings, I have illustrated therein my novel illumione,

nating device applied to a single desk 25 from an inspection of said figureoi the drawings, the construction oi said illuminate ing device is the same as that hereinabove described, except thatthe reflector-members are removed from one ofthe side-walls 11, since their location there is, in such use, unnecessary. The side-walls 11 facing or upon the side of the working surface of said desk serves to shield or shade the eyes of the user of the desk from the direct rays of the lamps.

As will scription, ings, the illuminating the entire length of walls 11 are curved so as distributlon of said reflector-members 23 in such a series of angles as will redirect a portion of the direct rays of the light pro-Q duced by the lamps'l8 to the outermost portions of the working surface of said desk, and the same will cause a maximum flux of light at such points; furthermore,

and an inspection of the drawdevice is made to run the desk. The s1dethe direct rays of the lamps flood the inner 1 portions of said desk surface with light,

interrupting the direct rays of the lamps and preventing the same from reaching the eyes of the-users of the desk. The lamps 18 being spaced at proper intervals throughout said combined reflector-casing and lampshades, the direct and indirect B ht-rays springing from various sources and reflec- 61011 points or surfaces, cause a. perfect diffusion and distribution of light, thus making it possible for the users of the desk to work in any position, either to the left hand or the right hand portions of the desk, without annoying un er shadows, or ually annoying glare or reflection being pr need from the surface of books or paper.

26. As will be apparentto permit of the be apparent from theabove de- It will thus be readily apparent, that my 'Gopies of this patent may be obtained without departing from the scope of the present invention as set forth in the foregoing specification, and as defined in the claims appended thereto. Hence, I do not limit my invention to the exact arrange ments and combinations'of the various devices and parts as set forth in the said foregoing specification, nor do I confine myself to the exact details of the construction of the said parts, as illustrated in the accompanying drawings.

I claim: 1.-An illuminating device for desks and the like, comprising a combined reflectorcasing and lamp-shade, downwardly extending and outwardly flaring concave side-walls connected therewith, longitudinallyextending beads or ribs connected with the lower marginal edge of each side wall, outwardly projecting stiflening beads or ribs formed in said side walls, a plu-s' rality of lamps or lighting units supported within said combined reflector-casing and lamp-shade, a series of reflector-members, secured upon said side-walls of said combined reflector-casing and lamp-shade,

adapted to throw a maximum light-flux tothe outer portions of the desk surface, the

rays of said light-flux being directed in lines below the level of the eyes of the user of the desks, and a plurality of columns or standards provided with means for engaging said beads or ribs connected with the lower marginal edge of said side-walls of said reflector casing and lamp shade to support the latter so that'the same will extend the entire length of the desk, substantially as and for the purposes set forth.

casing and lamp-shade, downwardly ex-' tending and outwardly flaring concave side-walls connected therewith, longitudinally extending beads or ribs connected with'the lower marginal edge of each side wall, outwardly projecting stiffening beads or ribs formed in said side walls, a plurality of lamps or lighting units supported within said combined reflector casing and lamp-shade, a series of' reflector-members, secured upon said sideawalls of said rei'lector-casingv and lamp shade and arranged in a series of angular positions so as to provide angularly disposed reflecting surfaces adapted to throw a maximum light-flux to the outer portions of the desklsii face, the rays of said light-flux being directed in lines below the level of the eyes of the user of the disk, a plurality of columns or standards, and outwardly extending supporting arms or brackets connected with said columns or standards, the same being provided with grooves or receiving sockets for receiving said marginal beads or ribs of the sidewalls of said combined reflector-casing and lamp-shade so as to support the latter longitudinally above the desk surface, substantially as and for the purposes set forth.

In testimony thatl claim the invention set forth above .[have hereunto set my hand this 14th day of December, 1910.

WILLIAM H. SPENCER. V

Witnesses: ALBERT P. BENITO,

CHAS. K. WYATT.

for-.five cents each, by addressing the Commissioner of Patents.

- Washington, D. 0. I

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