US507714A - Electric-lamp shade and holder - Google Patents

Description

(No Model.)

A.S.MARTEN. ELBGT RIG LAMP SHADE AND HOLDER.

' N0. .50 '7,'714. Patented 0013.3 1, 1893.

ATT-Y'S.

UNITED STATES PATENT OFFICE.

ALBERT S. MARTEN, OF EAST ORANGE, NEW JERSEY.

ELECTRIC-LAMP SHADE AND HOLDER.

SPECIFICATION forming part of Letters Patent 11055073714, dated October 31, 1893.

Application filed March 8, 1893. Serial No. 465,139- (No model.

To aZZ whom it may concern:

Be it known that I, ALBERT S. MARTEN, a citizen of the United States, residing at East Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Electric-Lamp Shades and Holders; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to dispense with the use of independent holders, to reduce the cost of construction, to obtain a firm grasp upon the lamp socket, and to secure other advantages and results some of which will be referred to in connection with the description of the working parts.

The invention consists in the improved electric lamp holder and shade, and in the arrangements and combinations of parts all substantially as will be hereinafter set forth and finally embodied in the clauses of the claim.

Referring to the accompanying drawings in which like letters indicate corresponding parts in each of the views, Figure l is a side elevation of the improved shade and lamp holder, and Fig. 2 is asection of the same, taken on line 00.

In said drawings, aindicatcs the shade and b the socket of an electric lamp.

0 indicates an annular flanged part of said shade, and formed around the center opening thereof projecting upward a limited distance from the upper inclined face of the shade as shown in Fig. 1. Within the annular flange and concealed from view thereby when looking at the shade from the side is secured a holding spring, d, which is of a ring like form of a smaller diameter than the flange, c, the ends of which spring do not join to make a complete ring. The end, e, of the spring is soldered or otherwise fixed to the inner wall of the flange 0, and is bent to raise the portion, e, of the spring away from the said wall into position to engage the cylindrical socket. From this bend, the spring takes an annular course to abearing, e where it is again fixed to the inside wall of the flange and held in place to engage the surface of the cylinder. .The opposite end of the spring, 6

the cylindrical surface and at its extremity,

is bent, as at f, to provide a bearing for a clamping screw g. Said screw is arranged in threaded bearings, h, of the flange and is disposed tangentially with reference to the spring, so as todraw the said spring against the cylinder and cause it to hug the latter at all points on the periphery, and thus secure firmness and rigidity and strength in holding the lamp. The finger piece of the screw hes on the outside of the flange c, where it can be easily manipulated and the screw, after passing through the threaded bearings, h, of the flange, presses against the outwardly bent extremity, f, to press or draw the spring into holding relation as above indicated. The extremity, f, of the spring, where it provides a bearing for the clamping or setting screw, is recessed or cup shaped to receive said screw and prevent the same from slipping.

I am aware that heretofore shades, of more or less elastic material, suchas cardboard or sheet metal, have been made with vertical splits or with overlapping parts so formed and disposed as that the body of the shade itself can be contracted or expanded at the top. In the present case, the body of the shade is non-contractile and the spring, (1, lying within the top opening, has an independent movement or action controlled by the set screw. I thus dispense with outside appearing joints, secure a more positive and firm hold upon the lamp, and secure other advantages which it is not necessary to recite here. Again, on the other hand, I am aware that modifications may be made in the construction of the device without departing from the invention and I do not wish to beunderstood as limiting myself to the positive descriptive statements above made excepting as the state of the art may require.

Having thus described the invention, what I claim as new is- 1. The combined electric lamp holder and shade herein described, in which are combined a shade having, at its center opening, a vertical flange within which is secured a grasping spring having a free end e and a setting or clamping screw, g, extending through said vertical flange and drawing or adapted to draw said free end into clamped relation to the lamp, substantially as set forth.

2. The combined electric lamp holder and shade herein described, comprising a shade having a spring permanently secured on the interior thereof and a setting screw extending through said shade and engaging said spring, substantially as set forth.

3. In combination, the shade a, annular flange 0, having set screw g, a spring, 01, concealed within said flange in side elevation and fixed to the flange, as at e, and raised from the flange, as ate, and having a second bearing, 0 and a free end, e engaged by said set screw and adapted to hug the cylindrical lamp socket, substantially as set forth.

4. The combination with the shade body having the non contractile and open upper end, a spring d, permanently secured to the interior Walls of said shade and having a free end which is bent outwardly and is cupshaped and a setting screw g extending through the shade and entering the cupped free end of the spring, substantially as and for the purposes set forth.

In testimony that I claim the foregoing I 0 have hereunto set my hand this 24th day of February, 1893.

ALBERT S. MARTEN. Witnesses:

CHARLES H. PELL, OSCAR A. MICHEL.

Images