US1494117A - Lighting fixture - Google Patents

Description

May 13 ,,1924. 1,494.11?

' W. R. KAHNS LIGHTING FIXTURE Filed Ju1 29, 1922.

M Gubtom was 1 Patented May 13, 1924.

UNITED STATES PATENT OFFICE.

WALTER R. KAI-INS, or BROOKLYN, NEW

ORK, ssIeNoR T J." H]. WHITE MANU- FACTURING COMPANY, OF BROoKLYN, New YORK. A CORPORATION OF NEW YORK.

LIGHTING FIXTURE.

Application filed July as,

To all whom it may concern:

Be it known that I, VVAL rnR R. KAHNs, a citizen of the United States, residing at the borough of Brooklyn, .in the county of Kings. city and State of New York, have invented 3 an Improvement in Lighting Fixtures, of which the following is a specification.

My invention relates to electric lighting fixtures being particularly designed for use with the so-called incandescent ball-lamps, its object being to allow for the employment of standard socket covers provided with the customary clamping screws ordinarily employedfor suspending a shade or globe; the invention consists essentially of an attachment comprising a shell having a central opening intowhich the extreme lower end of the lamp socket extends, the shell covering the space between the socket and its cover, forming an ornamental bottom'and excluding dust, there being means secured to the shell for adjustably connecting it to the screws or their equivalent on the socket cover. I

In the accompanying drawing:

Fig. 1 is an elevation of the complete fixture partly in section.

Fig. 2 is a top view of the bottom shell detached.

Fig. 3 is a cross section on the broken line 33, of Fig. 2.

gig. 1 is a bottom view of the socket cover, an

Fig. 5 is a similar view. showing a slight modification.

Similar reference characters indicate like parts throughout the several views.

Referring to the drawing, indicates th lamp socket, and 11 the cover for the same provided with spaced screws 12 in its lower part, which ordinarily are employed to support a shade or globe. but which in the present case perform a different function as hereinafter described.

The cover 11. is secured to the socket by a hollow stud 13. exteriorly threaded on its lower end to screw into the interiorly threaded nipple let, on the top of the lamp 50 socket and interiorly threaded in its upper part for connection with a pipe terminal, there being an opening in the top of the cover 11, through which the lower threaded end of the stud. 13 extends, and a boss 15,

1922; Serial N01578Q330.

"The socket cover is provided "with the I switch key or rod.

17 indicates a saucer shaped shell with a central opening 18, into which is secured a customarv slot 16,.f0r the passage of a somewhat similar shaped shell 19, of smaller size, its upwardly curved rim being provided with spaced inclined slots 20.

The shell 19 maybe secured to the shell 17, in any suitable manner, but I prefer to upset its edge surrounding the central opening upon the edge of the shell 17 surround ingthe opening 18. as shown most clearly in Fig. I The upper edges in theslots 20. on the shell 19 are preferably provided with notches 21. The upturned rim of the shell 19 is preferably cut away at the open end of each slot 20, so as to widen the slots at such points for facilitating the attachment of the shell 17 to the socket cover 11. I

In assembling the fixture, the cover 11 is clamped u pon'the socket 10 by the stud 13 as before described.

The socket cover is then seated into the shell 17. the screws 12 enterning the wide open ends of the respective slots 20 in the central shell 19. The shell 17 or socket cover 11 is then slightly turned so that the screws 12 pass into the narrower portions of the inclined slots 20 and engage the notches 21, thereby firmly attaching the shell 17 to the socket cover.

The main object in giving, the slots 20 a slight inclination is to provide for the variation in some standard socket covers as to the distance in which the screws 12 are placed from the bottom of the cover. In covers having screws set at the maximum height, the screws will enter the first notches in the slots and where set at the minimum point they will enter the innermost notches.

When attached to the socket cover, the shell 17 closes the space between the bottom of the cover and the lamp socket prevent ing the entrance of dust or other foreign matter and giving a finished appearance to the fixture. The outer surface of the shell manner, and its upwardly curved riiif hides the heads of the screws 12 thereby further improving'the finished appearance of the fixture.

While I prefer to employ the screws 12 in order to make use of standard socket covers and thereby lessen the cost of manufacture, it will be readily understood that socket covers may be employed provided with fixed pins or lugs 22, as illustrated in Fig. 5.

The lamp 23 is screwed into the socket 1O at'ter the shell 17 has been attached to the socket cover.

I claim as my invention: a

1. An attachment for socketcovers in lighting fixtures, comprising a saucer shaped shell having a central opening in its bottom, a smaller shell within the same and secured thereto at said central opening, said inner shell having an upturned rim provided with spaced apertures.

2. An attachment for a socket cover of standard character and provided with the customary set screws, comprising a shell having a central opening in its bottom, a smaller shell having a like opening and secured to the larger shell at such central openings, said smaller shell having an upturned rim provided with spaced apertures intowhich the screws on the socket cover engage to connect the shells to said cover.

In a lighting fixture and in combination, alamp socket, a. cover for the same provided with the customary set screws near its bottom, a saucer shaped shell pro vided with a central opening, a smaller shell of similar-shape secured to the larger shell and having its rim provided with spaced inclined slots into which said screws on the socket cover engage to connect the shells to the socket cover.

4. In a lighting fixture and in combination, a lamp socket, a cover for the same provided with the customary set screws, means for holding the cover to the socket, a shell provided with a central opening, a smaller shell secured to the larger shell at its central opening and having spaced inclined slots provided with notched edges in its rim into which said screws on the socket cover engage to connect the shell to the socket cover.

5. In a lighting fixture and in combination, a lamp socket, a cover for the same provided with the customary set screws, a shell provided with a central opening, another shell of smaller diameter having a central opening secured within the opening in the larger shell and having an upturned rim provided with spaced slots into which said screws on the socket cover engage to connect the shells to the socket cover.

6. In a lighting fixture and in combination, a lamp socket, a cover for the same provided with a plurality of spaced members on its lower part extending horizontally, a shell provided with a central opening into which the lower end of the socket enters, and another shell of smaller diameter secured to the first named shell its rim being provided with spaced inclined slots with which said spaced members on the socket cover engage.

Signed by me this 12th day of July, 1922.

WALTER R. KAHNS.

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