US1974063A - Lamp - Google Patents

Description

Sept. 18, 1934. v L. c. D'OANE LAMP Filed Nov. 7. 1951 INVENTOR Zerqy C 000/76.

' ATTORNEY Patented Sept. 18, 1934 UllE ITTE-S LAMP Leroy, C. Doane, Meriden, Conn. assignor to The Miller Company, Meriden, Conn., a corporation of Connecticut Application November 7, 1931, Serial No. 573,537

6 Claims. (01.240431 The present invention relates to lamps and is more particularly directed toward floor lamps of the bridge type adapted to employ ultra-violet lamp bulbs which emit biologically useful ultraviolet rays.

The present invention contemplates a lamp so designed as to produce a concentrated beam of light directed in a predetermined direction (generally downward). This beam of light is produced by an opaque metal reflector preferably made of aluminum where ultra-violet lamp bulbs are employed. In order to hide and conceal this reflector, the present invention contemplates the provision of an outer ornamental shade which receives a small amount of light from the light source so as to appear luminous.

A further object of the invention is to provide a lamp having a reflector and shade for the purposes such as above mentioned and wherein the parts are arranged for easy assembly and disassembly without the use of tools.

The accompanying drawing shown, for purposes of illustrating the present invention, one

I of the many embodiments in which the invention may take form, it being understood that the drawing is illustrative of the invention rather than limiting the same. In the drawing:

Fig. 1 is a side elevational view with parts in section showing a bridge lamp; and

Fig. 2 is a section taken on the broken line 22 of Fig. 1.

As illustrated in the drawing, a lamp base 10 carries a column 11 which supports a ball and socket joint 12. This joint carries a bridge arm 13 and this bridge arm is provided with a ball and socket connection 14 which supports a stem indicated at 16. This stem carries a lamp socket 17 and socket cover 18. The lamp socket is adapted to receive a lamp bulb such as an ultraviolet lamp bulb indicated at 19 and provided with the usual aluminum reflecting cup 20.

The lower edge of the socket cover is flanged outwardly as indicated at 21 and is provided with three spacers 22 secured to it in any convenient manner. These spacers are internally threaded to receive headed members such as thumb screws 23.

The upper and lower rings of a lamp shade frame are indicated at 24 and 25. These rings are connected together by the usual wire uprights or spacers 26. This shade frame is provided with light diffusing material 27 such as silk, parchment, or the like. The upper part of the frame is connected with downwardly and inwardly extending frame members 28 whose lower ends are secured inside a bead 29 rolled on a sheet metal ring 30. This ring has a central opening 31 to accommodate the lamp bulb and is provided with a number of bayonet slot forming openings indicated at 32. These openings have large portions 33 adapted to receive the headed members 23 and smaller portions 34 adaptedto receive the shanks only of these headed members.

An opaque reflector, preferably made of aluminum, is indicated at 40. This reflector has a central opening 41 to accommodate the lamp bulb and a number of spring clips 42 are secured to it by screws 43. These spring clips extend upwardly as indicated at 44 and are adapted to embrace the bead 29 of the stamping 30. The outer edge of the reflector 40 is provided with a number of depending feet 45 which support an annular trough 46. This trough is spaced below the edge of the reflector 40 and receives a small band of reflected light and returns it upwardly as indicated at 47 in the drawing so that this light falls on the inner surface of the shade 27 where it is scattered and diffused as indicated. Some light from the bulb passes out from the space between the reflector 40 and the stamping 30 and illuminates the shade as indicated at 50.

When the lamp bulb is removed from the socket, one can easily remove the reflector by rel-easing the spring clips and the shade can be removed by turning it slightly so as to bring the large ends of the slots opposite the heads of the screws. The ball and socket joint 12 permits adjusting the bridge arm through a restricted angle, and the ball and socket joint 14 permits adjusting the lamp to a restricted angle relative to the bridge arm. This makes it possible to adjust the angle to which the light is directed.

When the complete lamp, as shown in the drawing, is in operation, one does not see the A socket cover or reflector. The shade gives a dim glow and a strong beam of light is directed downwardly. The lamp socket, lamp, and reflector, may be employed as a part of a ceiling unit without the difiusing shade, if desired. In this case the reflecting trough acts to direct a small amount of light toward the ceiling. It will also be noted that the present construction is well adapted for obtaining a smaller light distribution when employing an ordinary incandescent lamp, the parts I being proportioned so as to place the light source in the proper position relative to the reflector.

It is obvious that the invention may be embodied in many forms and constructions, and I wish it to be understood that the particular form shown is but one of the many forms. Vari- 1 16 ous modifications and changes being possible, I do not otherwise limit myself in any way with respect thereto.

What is claimed is:

1. A lamp comprising a normally pendant lamp socket carrying a lamp bulb, a socket cover about the socket, a metal reflector supported from the socket cover and disposed about the lamp bulb for reflecting the light downwardly and cutting off upwardly directed direct light, an annular reflecting trough secured to the reflector and spaced from the edge thereof both inside and outside said edge for intercepting a narrow band of reflected light and reflecting it upwardly outside the reflector for upward illumination, and a light diffusing shade supported from the socket cover in a position to receive said upwardly reflected light. l

2. A lamp comprising a normally pendant lamp socket carrying a lamp bulb, a socket cover about the socket, a metal reflector supported from the socket cover and disposed about the lamp bulb for reflecting the light downwardly and cutting off upwardly directed direct light, an annular reflecting trough secured to the reflector and spaced from the edge thereof both inside and outside said edge for, intercepting a narrow band of reflected light and reflecting it upwardly outside the reflector for upward illumination, and a light diflusing shade supported from the socket cover in a position to receive said upwardly reflected light, said diffusing shade extending downwardly so that its lower edge is substantially even with the reflecting trough so as to conceal the same.

3. A lamp comprising a normally pendant lamp socket carrying a lamp bulb, a socket cover about the socket, a metal reflector supported from the socket cover and disposed about the lamp bulb for reflecting the light downwardly and cutting off upwardly directed direct light, an annular refleeting trough secured to the reflector and spaced from the edge thereof both inside and outside said edge for intercepting a narrow band of reflected light and reflecting it upwardly outside the reflector for upward illumination, and a light difiusing shade supported from the socket cover in a position to receive said upwardly reflected light, said diffusing shade extending upwardly to conceal the socket cover.

4. A lamp comprising a normally pendant lamp socket carrying a lamp bulb, a socket cover about the socket, a downwardly acting metal reflector about the lamp bulb, a diffusing shade outside the reflector, means to direct a small amount of light onto the inside surface of the diffusing shade to make the same appear luminous, means for supporting the diffusing shade from the socket cover, and means for supporting the metallic reflector so that it can be removed without removing the shade.

5. A lamp comprising a normally pendant lamp socket carrying a lamp bulb, a socket cover about the socket, a downwardly acting metal reflector about the lamp bulb, a diffusing shade outside the reflector, means to direct a small amount of light onto the inside surface of the diffusing shade to make the same appear luminous, quick detachable means .for supporting the diffusing shade from the socket cover, and quick detachable means for supporting the metallic reflector from the diffusing shade support.

6. A lamp comprising a normally pendant lamp socket carrying a lamp bulb, a socket cover about the socket, a downwardly acting metal reflector about the lamp bulb, a diifusing shade outside the reflector, bayonet slot connections for detachably supporting the shade from the socket cover, and spring clips for supporting the reflector from the shade support.

LEROY C. DOANE.

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