US1784306A

US1784306A - Swiveled lamp-shade support

Info

Publication number: US1784306A
Application number: US363938A
Authority: US
Inventors: Frank J Murphy
Original assignee: S W FARBER Inc
Current assignee: S W FARBER Inc
Priority date: 1929-05-17
Filing date: 1929-05-17
Publication date: 1930-12-09
Anticipated expiration: 1947-12-09

Description

Dec. 9, 1930. F. J. MURPHY 1,784,306

SWIVELED LAMP SHADE SUPPORT Filed May 17', 1929 IN VEIVTOI? Ammn-s.

Patented Dec. 9, 1930 UNT STATES PATENT OFFICE FRANK J. MURPHY, OF FLORAL PARK, NEW YORK, ASSIGNOB TO S, W. FARBER, INQ, ,OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK SWIVELED LAMP-SHADE SUPPORT Application filed May 17,

My invention relates to a new and improved lamp shade support.

One of the objects of my invention is to provide a lamp shade support of simple and efficient construction whereby the lamp shade can be tilted to any desired angle, and will be firmly held in its adjusted position.

Another object of my invention is to provide a swiveled lamp shade support in waich a plurality of springs are employed for in parting suiiicient friction between the various parts of the device, so as to frictionally hold the lamp shade in any suitable adjusted position.

Other objects of my invention will be set forth in the following description and drawings which illustratea preferred embodiment thereof, it being understood that the above general statement ofthe objects of my invention is intended merely to generally ex plain the same, and not to limit it in any manner.

Fig. 1 is a side elevation.

Fig. 2 is a top view.

Fig. 3 is a sectional view on the'line 33 of Fig. 4:.

Fig. 4 is a top View, partially in horizontal section.

Fig. 5 is a rear elevation. A

The lamp shade S is preferably made or any suitable vitreous material whose interior may be white and whose exterior may be green. The lamp shade is provided with a rear arouate flange to which a protective metal shell 2 is applied. The column or pedestal P of the lamp (which may be a reading lamp of the well known type) is connected by means of a suitable member N 1 to the coupling member 17 of the support. As shown in Fig. at, the coupling member 17 is provided with an annular extension 16, whose width is substantially one-half the width of the said coupling member 17. Like wise, and as shown in Fig. 4, the holder for the shade is provided with a rearwardly extending arm 3, which is provided with a ring-like extension 3 whose width is substantially one-half the width of the said cou pling member 17. A square shaft 14 passes through a square hole in the extension 16 1929. Serial No. 363,938.

so that said shaft 14 cannot turn in extension 16.

Annular end members

12 and 18 are located at the ends of the shaft 1%, and they are held in position by means of nuts 11 and 11; The

end members

12 and 18 cannot turn with respect to the square shaft 1 1. The opening in the extension 3 is made of sufficiently large diameter to enable it to turn freely with respect to the square shaft 14. End compressionsprings 15' and 20 urge the

end members

12 and 18 into firm frictional contact with the extensions 3 and 16.

The shell 2 of the shade is clamped against acorresponding flange 8 of the holder 5 by means of a strap'9 and nuts N;

When it is desired to tilt the shade S, as indicated in dotted lines in Fig. 1, this can be readily done because the extension 3 can turn freely withrespectto the square shaft 14. However, the frictional hold produced by the compression springs maintains the shade S in the tilted position because of the frictional grip exerted between the

end members

12 and 18, and the member 16. The compression of the springs 15 and 20 can be regulated by means of the nuts 11 and 11. It is obvious that a very simple and reliable device is thus produced which automatically holds the shade in any tilted position.

Likewise, while I have shown my invention applied to the shade for a reading lamp, which has a pedestal or upright P, it would not be departing from my invention to apply the device to any other type of lamp having a rigid support of any kind which would correspond in function to the pedestal or upright of a reading lamp. I

I have shown a preferred embodiment of my invention, but it is clear that numerous changes and omissions could be made without departing from its spirit.

I claim:

1. A shade support for a lamp having an upright or the like, comprising a coupling member connected to said upright, said coupling member having an annular extension, a shaft non-revolubly mounted in said extension, a shade holder having an annular extension revolubly mounted upon said shaft, a hollow end friction member slidofthe shade holder, said friction member and the extension of the shade holder having non-interlockingfriction faces which are perpendicular to said shaft."

, 2. A shade support comprising an annular member which is adapted to be connected ;:to an; upright or thelike, a shaft having a non-circular cross section, said shaft being non-revolubly mounted in said annular member, a shade holder including a second annular member which is turnably mounted upon said shaft, a r gid friction member gwhichis non-revolubly and slidably mount- 7 ed upon said shaft, said friction member being perpendicular to said shaft and being adapted to frictionally resist the turning movement of the second annular member,

tional end members which are connected to the ends of said shaft and projecting beyond said ends, and compression springs located intermediate said additional end membersandthe lateral walls of said friction members, said compression springs being adapted to produce frictional contact between said friction members and said extensions.

-In testimony whereof I aflix my signature.

FRANK J. MURPHY.

. saidsecond annular member and said fric-' tion member having non-lnterlocklng friction faces which, are perpendicular tosaid shaft, said friction member having a noncircularbore which fits upon said shaft.

3. 'A shade support for a lamp comprising an upright or the like, comprising a shaft which is non-revolubly connected tov the said upright, ashade holder which is revolubly mounted upon the said shaft, afriction member which is non-revolubly and 'slidably mounted upon the said shaft, said friction member and said shade holder having cooperatingfriction faces which are non-interlocking andwhich are perpendicular to the vsaid shaft, spring means adapted to urge I said friction faces against each other, said shaft having a non-circular cross section and I said friction member having a bore which fitsupon said shaft. v 4. A 'shade support for a lamp having an upright ,or the like,'comprising a coupling member adapted to be non-movably connected to said upright, said coupling member having an annular extension, the width of said annular extension being substantially one-half the width of said coupling member,

a'shaft which is non-revolubly mounted in said extension, a shade holder having an annular extension which is non-revolubly mounted upon said shaft, the width of said shade holder and of said extension being substantially equal to the Width of saidcoupling member, andfriction members which are slidab'lyand non-,revolubly mounted upon the shaft at the outer ends of said extensions,

' said friction members and said extensions having non-interlocking friction faces which are perpendicular to said shaft and addi-