US718223A - Loop for incandescent lamp-mantles. - Google Patents

Description

-N 718,223. PATENTED JAN. 13,1603;

c.v SIMON & I. BISLER.

LOOP FOR INGANDESGENT LAMP MANTLES.

grrmog'non FILED APR. 3, 1902.

K0 MODEL.

UNrrED STATES v PATENT OFFICE.

CHARLES SIMON AND ISAAC EISLER, OF NEW YORK, N. Y.

, LOOP FOR INCANDESCENT LAMP-MANTLES SPECIFICATION forming part of Letters Patent No. 718,223, dated January 13, 1903.

Application filed April 3, 1902.

To all whom it may concern:

Be it known that we, CHARLES SIMON and ISAAC EISLER, citizens of the United States,

residing in the borough of Manhattan, New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Loops for Incandescent Lamp-Mantles; and we 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.

Our invention relates to loops for incandescent mantles by which they are suspended from the supporting-rods.

As is well known, lamp-mantles are provided with loops at the top, which are generally made of asbestos fibers twisted and fastened to the mantles. -These loops are frequently imperfect, and very often they are broken in taking the mantles outof their cases or in manipulating them and also in hanging them on the supporting-hooks. When the loops are broken, the mantles are useless, as it is difficult in fact, impossib1eto repair them.

The object of our invention is to provide a substitute loop that may be easily and quickly put in place without endangering the mantle and which shall afford a perfect support for the mantle.

To this end our invention consists in a metallic loop made with extensions that are spread outward more or less, so that if a loop breaks one of these metallic loops can be substituted by passing it down into the mantle from the bottom until the loop passes through the top and its extensions bear against the converging sides of the mantle, whereby the mantle is suspended when the loop is placed on the hook of the support.

In the accompanying drawings, Figure 1 represents an incandescent mantle With our improved loop arranged within the same in position to be engaged by the supporting-hook. Fig. 2 represents the loop removed from the mantle. Fig. 3 is a modified form of the loop, showing double extensions or prongs. Fig. 4

is a form of the loop showing a ring at the end of the prongs to form an additional support for the mantle.

Referring to the drawings, A designates the Serial No. 101,182. (No model.)

I loop, which is made from pressed steel or other suitable metal, so that inits' construction extreme lightness can be'combined-with the re-.

quired strength. It is stamped in a single piece, preferably but not necessarily, from the metal, and it comprises the closed upper part or top b, forming the loop proper, the straight sides d d, the width of which should be less than the diameter of the opening in the top of the mantle,and the side members are curved outward at e e, so that they are wider apart than the opening in the top of the mantle, and fromffthey are bent downward, forming thus convexly-curved legs orstems g g, the curvature of which corresponds roughly to the arouation of the top of the mantle.

B indicates a mantle of the ordinary constructionthat is, the sides thereof from a point some distance, above the middle line begin to converge and continue to the neck h, from which point the mantle again spreads out, thus forming the top 1', which is open in the usual manner.

In the mantle illustrated it must be understood, that. the loop with which it was originally provided has been broken and removed, and the description that follows describes the way of putting the substitute loop in its place. For this purpose the mantle is inverted more or less, so as to bring its bottom opening upward. The loop, with its closed end 17 down or in the direction of the top of the mantie, is then put in the. mantle and allowed to slide downward until its closed end b passes through the opening in the top, and its further movement is stopped by its extensions ff coming in contact with and bearing against the converging sides of the mantle. The projecting closed end of the loop is then grasped and the mantle is returned to its proper position. The loop is then placed on the hookof the usual support and the mantle is suspended and supported by the extensions of the loop, as shown by Fig. -1.

The modification shown by Fig. 3 consists of a double loop, which by preference is also made in a single piece from suitable metal. These loops contain the'same parts as the single loop before described and the parts are similarly lettered. This loop, in addition to suspending the mantle, also holds it steadily and prevents it from swaying sidewise.

The modification shown by Fig. 4 consists in making the loop with a ring Z at the base to form an even bearing against the converging sides of the mantle and support it on every side instead of at intervals, as when the extensions only are used. This ring may be an integral part of the loop, formed by lengthening one of the extensions g and bending it to form a ring, or it may be made separate and attached to the extension by solder or in any other suitable way.

WVe claim- 1. As a new article of manufacture a metallic loop for incandescent lampmantles comprising a closed upper end straight sides and conveXly-curved legs that conform to the arcuation of the upper sides of the mantle, substantially as specified.

2. As a new article of manufacture a metallic loop for incandescent lamp-mantles comprising a closed upper end, straight sides,

convexly-cnrved legs that conform to the arcuation of the upper sides of the mantle and a ring at the base, substantially as specifled.

3. The combination with the upper converging sides the neck and the open top of the mantle of a metallic loop comprising a closed upper end, straight sides, and convexlycurved legs that conform to the arcuation of the upper part of the mantle and thus bear evenly against the same to support the mantle without injury, substantially as specified.

In testimony that we claim the invention above set forth we affix our signatures in presence of two witnesses.

CHARLES SIMON. ISAAC EISLER.

Witnesses:

D. RUBENSTEIN, AARON L. IPSCAR.

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