US1790877A

US1790877A - Clamping lamp-shade support

Info

Publication number: US1790877A
Authority: US
Publication date: 1931-02-03
Anticipated expiration: 1948-02-03

Description

Feb. 3, 1931. F. J. MURPHY 1,790,877

' CLAMPING LAMP SHADE SUPPORT Filed May 17, 1929 IN VENTOI? zwymw Patented Feb. 3,1931

UNITED STATES PATENT OFFICEQF.

FRANK J. MURPHY, or FLORAL PARK, NEW YoR'K; AssIGNoR T s. w. FARBER, rim, or BROOKLYN, NEW YORK, A co roRATIoN or .NEw'yoR CLAMPING LAMP-SHADE SUPPORT Application filed May 17, 1929. Serial No. 363,937.

My invention relates to a new and im proved lamp shade support. 7

One of the objects of my invention is to provide a simple, reliable and eflicient sup port whereby the shade of a reading lamp or the like may be held in proper position upon the upright of the lamp.

Another object of my invention is to provide a shade support which can be very easily applied or detached.

Other objects of my invention will be set forth in the following description and drawings which illustrate a preferred embodiment thereof, it being understood that the above general statement of the objects of my invention is intended merely to generally explain 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 lateral section. V

Fig. 4 is a. horizontal section partially in elevation.

Fig. 5 is a sectional view on the line 5 of Fig. 3. r

Fig. 6 is a perspective view of the shade, detached fromthe rest of the device.

The shade S is made of any suitable mate rial such as vitreous material which can be white on the inside and green on the outside as is well known. The shade S has an arcuate recess at the rear thereof and this recess is provided with a flange 1. This flange projects laterally from the shade and it is transversely curved. The transverse contour line of said flange is an incomplete curve. By an incomplete curve I intend to refer to a semicircular shape or the like. In order to protect the relatively fragile material of the shade S, the flange l is protected by a metal shell 2 made of any suitable sheet metal which can be bent into the shape indicated in Fig. 3. The inner end of the shell 2 projects upwardly against the interior wall of the shade S so that the shell 2 is firmly held in position without requiring any fastening means. The support upright P for the lamp has an arm 3 connected thereto by means of a suitable swivelled connection G, the details of which are not shown herein, as said swivelled connection C may either be of the ordinary and well known type, or it may be of the im-. proved type shown in my copending applica' tion. The arm 3 has a flange 4; suitably con-f.

nected thereto and a clamping shell5 is suitably secured to the flange 4. Alamp supporting arm 6 is suitably secured to, the clamping shell 5, so that the lamp supporting arm which is provided with the ordinary lamp connection, projects within the shade S.

the protecting shell 2 and the clamping shell 5. The clamping shell 5 is provided with an upstanding flange 7 which abuts the exterior wall of the protecting shell 2. A strap 8 provided with outwardly projecting ends is rivv eted or otherwise suitably secured to the clamping shell 5.. These outwardly project ing ends of the strap 8 have perforations which extend beyond the ends ofthe protecting shell 2, as clearly shown in Fig.5. An arcuate clamping strap 9 is provided, whose externally threaded ends project through the perforations in the ends of the strap 8. Hence, when'nuts N, are tightened upon the externally threaded ends of the clamping strap 9 the shade is securely clamped to the arm 3. When the protecting shell 2 is .-ap-. plied, the bottom thereof is preferably slightly spaced from the bottom of the flange 1 ofthe shade. S. However, when the nuts N are turned so as to tightly connect the parts, this causes the bottom of the shell 2 to be forced upwardly until it contacts more or less tightly'with the bottom of the flange 1 of the shade S, as shown in Fig. 3.

It will be noted that the improved support has a portion thereof which is adapted to bear against one face of the shell 2 of the shade S. This is associated with a clamping strap which is adapted to bear against the opposite face of the shell 2, the nuts N serving as connecting means to connect the clamping strap to the support.

If desired the initial shape of the protective shell 2 could be that shown in Fig. 3 in which case the said clamping shell 2 remains substantially undistorted when the strap 9 is clamped into holding position.

For convenience, the device is described as being in the vertical position, for the purpose of conveniently describing the various relations of the Various parts, but it is obvious that the action :of the support is .the'same if the shade is tilted or turned. v

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. In combination, a lamp shade having a laterally projecting flange, whose transverse contour line is an incomplete curve, a support forsaid lamp shade having a face adapted to bear against one face of the said flange, a clamping strap adapted to bear against the opposite face of the said flange, and means adapted to connect the said clamping strap to the support.

2. In combination, a shade having an arcuate flange projecting from the rear thereof, a shade support having a portion thereof of arcuate shape adapted to bear against the underside of the said arcuate flange, said support having perforated ears projecting beyond the edges of the said flange, and a clamping strap adapted to bear against the opposite side of the said flange and passing through the said ears, the ends of the said strap being externally threaded, and nuts connected to the externally threaded ends of the said clamping strap.

' 3. In combination, a lamp shade having an arcuate flange projecting from the rear thereof, said flange being laterally and upwardly curved, said'shade being made of vitreous material and having a protective shell clamped to the said flange, the underside of the said protective shell extending upwardly to abut the corresponding portion of the inner wall of the said shade, a support having an arcuate portion adapted to abut the underside of the said shell, a strap connected to the underside of the said support and having perforated ears projecting beyond the ends of the said flange, a clamping strap abutting the upper side of the said protective shell and having externally threaded ends passing through the perforations of the said ears and nuts applied to said perforated ends and adapted to clamp the said clamping strap into position.

In testimony whereof I alflix mysignature.

FRANK J. MURPHY.