US2069525A - Endless loop - Google Patents

Description

Feb. 2, 1937.

T. GORE ENDLESS LOOP Filed July 11, 1956 INVENTO Tfiamas [701 74 ATTORNE'Y Patented Feb. 2, 1937 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to endless loops or grommets capable of use for a variety of purposes, such for instance as a stabilizing or reinforcing element for tires.

The main object and feature of the invention is the production of an endless loop which while sufiiciently stable will nevertheless be flexible and which can be manufactured cheaply and quickly.

In the accompanying drawing the invention is disclosed in a concrete and preferred form. in

which:

Fig. 1 is a diagrammatic view of an endless loop embodying my invention;

Fig. 2 is a detail view, partly in section showing the method of uniting the opposed ends of a metallic strand surrounded by a metallic sleeve;

Fig. 3 is a view similar to Fig. 2 showing the finished weld; and

Fig. 4 is a sectional view substantially on the plane of line 4-4 of Fig. 3.

I indicates a metallic strand composed of a plurality of wires 2 twisted together. The wires will preferably be of steel or iron, and the number of such wires may vary but is here shown as being nineteen in number. After the wires have been laid into a strand, the strand is cut into an appropriate length and bent into loop formation with the ends introduced into a sleeve 3 and in abutting relation with their abutting ends held against each other under pressure. Sleeve 3 is metallic but will preferably be made of a softer material than the wires, such as soft iron or steel,

although it can be made of a non-ferrous metal such as manganese bronze. 4 indicates the opposed members of a welding device which are applied to the sides of the strand adjacent the ends of sleeve 3 whereby a weld 5 is formed between 5 the abutting ends of the strand as well as between the sides of the strand and the interior of the sleeve.

Several advantages flow from this construction and method. In the first place the loop can be 10 made of very accurate dimensions because of the abutting relationship of the ends of the strand. Secondly the bond made is unusually strong owing to the fact that the weld is not merely between the abutting ends of the strand, but also 5 between the sides of the strand and the interior of the sleeve. Thirdly, owing to the fact that the strand is composed of twisted wires, the loop possesses great flexibility coupled with great strength. i 20 I claim:

The method of forming an endless loop which consists in twisting a plurality of metallic wires into a strand, bending the strand into a loop until its ends abut and surrounding the sides of the 25 strand where its end abut with a metallic sleeve, and welding the abutting ends of the strand as well as the sides of the strand and the sleeve by subjecting the sides of the strand adjacent the ends of the sleeve to the action of electrical weld- 30 mg.

THOMAS GORE.

CERTIFICATE OF CORRECTION.

Patent No. 2,069,525.

THOMAS GORE.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 1, second column, line 26, in the claim, for the word. "end" read. ends; line 31, in said claim, after the syllable "ing" and before the period insert the word members; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 30th day of March, A. D. 1937.

Henry Van Arsdale (Seal) Acting Commissioner of Patents.

February 2, 1937.

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