US2435759A

US2435759A - Lamp shade

Info

Publication number: US2435759A
Application number: US628101A
Authority: US
Inventors: Spaw George
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-11-13
Filing date: 1945-11-13
Publication date: 1948-02-10
Anticipated expiration: 1965-02-10

Description

G. SPAW Feb. 10, 194 8.

EFiied my. 113,, 1945 INVENIOE ye BY ,7

ATTDKNE),

Patented Feb. 10 1948 UNiTED STATES PATENT OFFICE :ILA MP 7 "George Spaw, Kansas City, Mo. I Application November 13, 1945,Serial"'No. '*628,101

. -1 .Tfhis. invention-.relatesto lampzshadesiandfithe manner of producing the same and has for its primary aim the provision of an inexpensive, yet useful and beautiful lamp shade that may be produced in many colors and with various decorations.

One of the primary objects of the invention is the provision of a lamp shade which is produced of transparent material capable of having color imparted thereto and having decorations applied thereon when the transparent material is being prepared for mounting upon a frame that supports the entire lamp shade assembly in place around an electric lamp.

A further aim of this invention is to provide a lamp shade that is constructed of transparent self-sustaining material to the end that expensive and complicated frame work is eliminated and further to the end that the transparent material may be treated as desired before association with such frame work as may be desirable or necessary.

Other aims of the invention will appear during the course of the following specification referring to the accompanying drawing, wherein:

Fig. 1 is a perspective view of a strip of transparent material cut and made ready for producing a lamp shade.

Fig. 2 is a similar view showing the surfaces of the transparent material after they have been sandblasted.

Fig. 3 is an elevational view of one side of a strip of material from which a lamp shade is t be produced.

Fig. 4 is an elevational view of the opposite side of the strip of material.

Fig. 5 is a cross sectional view taken on line VV of Fig. 4 on an enlarged scale.

Fig. 6 is a perspective view of a lamp shade employing the strip of transparent material after it has been treated as illustrated in Figs. 1 to 5 inclusive; and

Fig. 7 is a fragmentary perspective view of a portion of a lamp shade having supporting framework made in accordance with the modified form of the invention.

It has heretofore been customary to provide rather elaborate and expensive wire frames for lamp shades and to secure to these said frames fabric or other substance that is hard to decorate and undesirable from the standpoint of its lack of durability. A lamp shade constructed in accordance with the preferred form of my invention comprises a strip of transparent, originally flat flexible material designated by the numeral I0 and having its two surfaces sand-blasted as at romm. Cl." 240*108) I ZCand i M toipresentra tooth capable of'receiving and holding such paint or other coloring matter as may be desired to present a decorative effect.

In the instance illustrated, flowers l6 are painted on one side of strip I0 and the opposite side thereof is coated with a paint l8 of suitable tint. The paint I8 is on the inside of the lamp shade when the same is finished and the decorations I 6 are on the outside thereof.

The material from which strip 10 is constructed is flexible enough to be rolled into a shade such as shown in Fig. 6 and while an originally fiat strip of transparent material that is now obtainable on the open market, is illustrated, it is conceivable that the substance from which the material forming strip II] is made, might well be moulded into a frusto-conical body usable as a lamp shade having the form shown in Fig. 6.

Where a strip of material [0 is employed, the ends are laced together as at 20 and the marginal longitudinal edges are laced as at 22 and to an upper and a

lower ring

26 and 28 respectively. Upper ring 26 is provided with a bracket 30, the form whereof is capable of allowing the entire shade assembly to be mounted upon an electric lamp or fixture therefor. When the shade is so constructed, no interconnecting tie bars are used between ring 26 and 2B. The strength of the material from which strip I0 is constructed is sufficient to avoid warping or twisting and after sand-blasting and decorating as above set down, the light passing through material It! will be of desired tint and reveal decoration IS.

The nature of the material from which strip If! is made is such as to preclude the application of paint to the surfaces thereof unless the sandblasting above mentioned, takes place.

In the form of the invention shown in Fig. 7, the strip I0 is precisely the same as the strip used in constructing the shade illustrated in Fig. 6. The frame is slightly different in that the upper and

lower rings

50 and 52 respectively, are channel-shaped and pressed against the marginal edges of strip I0. To preclude parting of these

rings

50 and 52 and to avoid the necessity of employing rivets or other fastening elements, bracket 54 is designed to present an arm 56 extending from upper ring 50 to lower ring 52. This arm is riveted as at 58 to

rings

50 and 52 and spreading of the latter is thereby precluded. It is notable that bracket 54 and its arm 56 is a continuous single piece of material bent, as clearly shown in Fig. 7, and fastened to a ring 60 that is 3 designed to engage an electric lamp or a part of the fixture in which the lamp is positioned.

It is realized that lamp shades having physical characteristics different than those illustrated and described might be made without departing from the spirit of the invention or scope of the appended claim.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is:

A lamp shade comprising a single strip of originally fiat, transparent, self-sustaining, flexible material formed to present an annulus and having means for securing the ends thereof together; a supporting ring at each edge respectively of said annulus; a pair of relatively stiff, L-shaped brackets, each formed from a single member, one leg of each bracket spanning'the distance between said supporting rings within said annulus and being secured to the innermost faces of the supporting rings in diametrically opposed relaand the normally uppermost edge of said strip of material respectively.

GEORGE SPAW.

REFERENCES CITED The following references are of record in the file of this patent:

15 UNITED STATES PATENTS Number Name Date 1,374,648 Guth Apr. 12, 1921 1,707,965 Scantlebury Apr; 2, 1929 20 1,813,492 Goodloe July 7, 1931 2,218,291 Muller Oct. 15, 1940