US632120A - Shade-frame. - Google Patents

Description

Patented Aug. 29, I899. F. E. HOWARD.

SHADE FRAME.

[Application filed Mar. 9, 1899.]

No Model.)

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ED STATES FRANKLIN E. HOWARD, OF BUFFALO, NEWV YORK.

SHADE-FRAM E.

SPEcIF'IcA'rIoN forming art of Letters Patent No. 632,120, dated August 29, 1899.

Application filed March 9, 1899. Serial No. 708,397. (No model.)

of Bufialo, in the county of Erie and State of New York, have invented a new and Improved Shade-Frame, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved shade-"frame more especially designed for use on electric lamps and which is simple and durable in construction, readily applied to a lamp in any position, and arranged to securely hold the shade in place.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of my invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the improvement. Fig. 2 is an inverted plan view of the same. Fig. 3 is a sectional side'elevation of a modified form of the improvement, and Fig. 4 is a side elevation of the same.

The improved shade-frame illustrated in Figs. 1 and 2 is provided with a beveled ring A, from the upper end of which extends an annular flange A, formed with an inwardlyextending short flange A both flanges A A being formed with vertical slits, so as to render the parts formed thereby sufficiently yielding to permit of readily passing the small end of the shade over said flanges to finally bring the shade in engagement with the beveled ring A, so as to properly support the small end of the shade on the frame. As is well known, shades are usually in the form of a frustum of a cone, the sides of which correspond to the bevel on the ring A, the small diameter of the shade corresponding approximately to the diameter of the small end of the ring A.

On the ring A are fastened, preferably by means of rivets B, a number of spring-arms 0, having their upper ends G projecting beyond the flanges A A as is plainly shown in Fig. 1, to engage the socket of the lamp, as is plainly indicated in said Fig. 1. The lower end 0 of each spring-arm 0 extends below the ring A and is preferably split into two arms 0 C of which the arm C is curved inwardly and rests with its free end on the bulb of the lamp, as indicated in said Fig. 1. The

other arm 0 is formed at its outer end with an eye for receiving and supporting a wire ring D, on which rests a portion of the shade between the upper and lower ends thereof, as indicated in dotted lines in Fig. 1. Each of the spring-arms O is riveted to the inside of the ring A, and the ends 0' C extend in alinement with each other and at an angle corresponding to the bevel of the ring A. .Thus by the arrangement described the shade is securely supported at the small end and at a distance therefrom, and as the frame is fitted centrally on the lamp it is evident that the shade is in a proper symmetrical position relatively to the lamp. It is expressly understood that when the shade is in position on the frame its upper edge abuts against the lower portion of the vertically disposed flange A, so that the shade is not liable to slip upward on the frame nor downward thereon owing to the conical form of the shade and ring.

The supporting-ring may be omitted, as shown in Figs. 3 and 4., and in this case'eaeh spring-arm C has its upper end 0 similar in form to the upper end 0 of the arms 0, as shown in Fig. 1, while the lower end 0 is not split, but is curved inwardly and rests directly on the bulb of the electric lamp when the latter extends upward, as indicated in dotted lines in Fig. 4. The heads of the rivets B in this case also rest on the bulb, so as to hold the middle portion of the spring-arms, as well as the ring, away from the bulb to allow a free circulation of air, and thereby prevent the frame from becoming und ulyheated. Otherwise the ring A, on which the arms 0 are riveted, is the same as above described in reference to Figs. 1 and 2, so that further description of the same is not deemed necessary, it being understood, however, that the shade also rests on the straight parts of the lower arms 0 of the spring-arms instead of on the ring D to properly hold the shade in place.

From the foregoing it is evident that the frame can be readily attached to a lamp no matter what position it is in-that is, whether it hangs downward, extends upward, or at an angle-and the spring-arms always serve to securely hold the frame in proper position on the lamp, and consequently the shade is held in a corresponding position relative to the position of thelamp.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A shade-frame for electric lamps, comprising a beveled ring having an annular vertical flange cut to yield sufliciently for the passage of the small end of the shade and for the edge of the shade to abut against, springarms secured to said beveled ring for engaging the lamp, each springarm extending above and below said ring, the lower end being split to form two arms, one of which is curved inward to engage the bulb, and a ring FRANKLIN E. HOWARD.

WVitnesses:

DANL. H. SQUIRE, M. A. HILLEs.

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