US1018241A - Shade-holder. - Google Patents

Description

E. E. FORSTROM. SHADE HOLDER. APPLICATION FILED NOV. 29, 1911.

Patented 'Feb. 20, 1912.

INYEIYTOE UNITED STATES PATENT OFFICE.

EDWARD E. FORSTROM, OF BRIDG'EPORT, CONNECTICUT, ASS-IGNOR TO THE BRYANT ELECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF GON- NECTICUT.

SHADE-HOLDER.

Application filed November 29, 1911.

Specification of Letters Patent.

To all whom 'it may concern:

Be it known that I, EDWARD E. FoRsTnoM, a subject of the King of Sweden, and residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented a certain new and useful Improvement in Shade-Holders, of which the following is a specification.

The present invention relates to shade holders, and the particular object of my invention is to provide simple and efficient means for securing the same to a support, such, for instance, as the casing of an electric lamp socket.

In the accompanying drawing, Figure 1 is a side elevation of a standard electric lamp socket; Fig. 2 is a vertical section through the shade holder parts detached; and Fig. 3 is a side elevation partly in section of my improved shade holder mounted upon a lamp socket.

The present invention is not concerned with the particular means employed for carrying the shade or globe upon the holder, and I have shown, by way of example merely, a common spring ring 5 supported in slots in the peripheral flange 6 of a shade holder body 7. Any other suitable globeholding device may be employed without departing from the present invention.

As the support to which the shade holder is attached I have illustrated in the present instance a standard electric lamp socket 8, with supporting beadv 9, adjacent the lampreceiving end thereof. To mount the shade holder thereon, I provide an expansible ring 10 with head 11, corresponding substan tially to the bead 9 of the lamp socket. The upper edge of this ring is rolled over to form an abutment 12 against which, in adjusted position, the inturned edge 13 of a screw collar 14 bears, whilea skirt 12 extends below the bead 11 of the ring and lies against the corresponding portion of the lamp socket casing below its bead 9. The diameter of the threaded collar 14 is such that it may be passed freely over the bead 9 on the lamp socket to a osition above the same before the ring 10 is adjusted upon the bead. A central sleeve 15, preferably depending from the upper face of the shade holder, is of a diameter slightly greater than that of the collar 14 and is threaded to receive the latter. From the lower edge of the sleeve 15 is inwardly oflset a flange 16 with depending I ring 17 adapted, in adjusted position, to surround the skirt 12 of the ring 10, thus to prevent the latter from spreading, and serving to hold its bead 11 fast on the bead 9 of the socket.

The operation and method of assembling the device on its support is readily understood. The ring 14, having been passed above the bead 9, the split ring 10 is adjusted upon the support wit-h the beads 9 and 11 in register. The shade holder body is then passed over the skirt 12 of the ring 10, until the flange 16 engages the lower edge of the bead 11. The screw collar 14 is then lowered and screwed into the sleeve 15 until its inturned edge 13 rests against the abutment 12 of the ring 10. The bead 11 is thus clamped between the flange 16 below and the flange 13 above which are drawn together by the screwing down of the collar 14 into the sleeve 15, thus locking the parts together, while the ring 17 below and the flange 13 above, hold the ring 10 closed and thus prevent the escape of its bead 11 from the bead 9 of the socket, and thus insure the support of the shade holder thereon.

It is not essential that the flange 16 and ring 17 be made integral with the shade holder body 7, as illustrated, and various other modifications may be made in the structure illustrated without departing from r the spirit of my invention.

I claim as my invention 1. In combination with a supporting bead, an expansible ring provided with a bead adapted to be positioned upon said supporting bead, a shade holder adapted to surround said expansible ring below the bead and hold the same in engagement with the supporting bead, in combination with means adjustable above said head for supporting said shade holder upon said expansible ring.

2. In combination with a supporting bea an expansible ring having at its upper edge an abutment flange and spaced below the same a bead adapted to be adjusted over the supporting bead, together with a shade holder having a sleeve adapted to fit over said expansible ring below the head to hold the ring in adjusted position upon the supporting bead, an independent collar adapted to be passed over the supporting bead, and provided with an inturned edge adapted to engage the abutment flange of the expansible ring in adjusted position and means for securing said sleeve to the shade holder body.

3. In combination with an electric lamp socket, having a supporting bead spaced from the lampreceiving end of the socket, a shade holder comprising a threaded collar adapted to be passed over said supporting bead, an expansible beaded ring adapted to be adjusted upon said supporting bead, and a central depending sleeve on the shade holder body serving to retain said expansible ring on the supporting bead, and adapted to be engaged by said collar in adjusted position, together with engaging surfaces between said collar and expansible ring.

4:. In a shade holder, a central threaded sleeve with inwardly offset flange, an eX- pansible beaded ring adjustable upon a supporting bead, and retained in position by said inwardly offset flange on the central sleeve of the shade holder, together with a threaded collar adapted to be passed over a supporting bead and screwed down into said threaded sleeve in adjusted position, and abutment means between said sleeve and split ring to insure the support 01 the holder upon said split ring in adjusted position.

5. In a shade holder, an expansible ring provided with a bead intermediate the ends of the ring and adapted to be adjusted upon a supporting bead, a shade holder. body member fitting over said ring below its bead and serving to hold the latter from below in engagement with the supporting bead, in combination with means engaging said ring above its bead on the one hand and serving to hold the latter from above in engagement with the supporting bead and on the other hand engaging the shade holder body whereby the latter is mounted on said expansible r111 1?). testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

EDWARD E. FORSTROM.

Witnesses:

GEO. B. THOMAS, Gr. l/V. Goonnmen.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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