US1093208A - Chain-link. - Google Patents

Description

M. B. RYAN.

. CHAIN LINK.

APPLICATION FILED 1339.5A 1911. RENEWED DEG. 20, 1912,

1,093,90 Patented Apr. 14, 1914.

WITNESSES: INVENTOR GET-LINK.

Specification of Letters Patent.

Patented Apr. ltd, 191%.

Application filed December 5, 1911, Serial No. 664,089. Renewed December 20, 1912. Serial No. 737,918.

To all whom it may concern Be it known that 1, MICHAEL B. RYAN, a citizen of the United States, residing in the city of Bridgeport, county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in Chain-Links; and I do declare the following to he 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. I

My invention relates to certain improvements in the construction of welded wire links for chains, and has for its object to provide such a link which shall be formed throughout its area from onesingle thickness of wire so bent as to provide a comparatively large bow portion and a comparatively small eye portion, which bow and eye shall extend in planes at right angles to each other, so that a chain made of such links may readily run over a pulley.

Further objects of my invention are to economize in the use of wire and to prevent any strain or wrench on the eye portion of the link from exerting a tendency to disturb the side wires of thebow of such link. With these ends in View my invention consists in the details of construction hereinafter fully described and then particularly pointed out in the claims which conclude this description.

In the accompanying drawing Figure l is a face elevation of my improved link- Fig. 2 an end view-Fig. 3 a side elevationl ig. 4 a section at the line m, an, of Fig. 1 Fig. 5 a view similar to Fig.1 but showing the link formed with a. very small eye portion, and Fig. 6 a side elevation of the construction shown at Fig. 5.

Similar numerals of reference denote like parts in the several figures of the drawing.

A suitable wire blank is bent into the form of a link as shown at Fig. l with the eye portion 1 extending in a plane at right angles to the how 2 of the link. The terminals 3 of the wire blank may come together at any desired part of the link, either at the end of the eye as shown 'in Fig. 2, or at the side of one of the bow wires as shown at Fig. 3, or at the end of the bow as shown at Fig. 5, and these terminals are welded together. At the base of the eye where the side Wires of the bow converge one above the other and merge into the eye,- the wires are welded together, this welded part being denoted by the numeral 4:.

Fronrthe above it will be readily understood that the chain link is made from a piece of wire bent into the form of a, link in such manner that both the bow and the eye are inclosed by a single thickness of the wire, and a chain made of links of this sort portion is formed from two wires, because the chain is merely as strong as the weakest part of its links, and if the bow portion of the link is formed of a single wire it does not increase the form the eye of a double wire. By welding the wires at the base of the eye, the latter becomes, so to speak, segregated, in that any strain or Wrench on the eye cannot they converge from the bow toward the eye. Also, a chain made of links formed as above cannot possibly kink owing to the fact that the bearing surfaces between the eye and the how are reduced to a minimum and are bounded by curved lines.

In links made in accordance withv my improvement the eye may be made very small and just suficient to loosely accommodate the bow wire of a succeeding link, and this will add considerably to the strength of the eye, since the smaller the latter the less leverage it will adord as against any wrenches or strains such as would have a tendency to distort the eye.

l claim' 1. A chain link made of a single piece of wire having its terminals welded together and bent to form a comparatively large bow portion and a comparatively small eye ortion, said how and eye being dispose in planes at substantially right angles to each other, the side wires of the bow being welded together at the point where they converge and merge into the eye.

2; A chain link formed throughout its force apart the wires at the point where is just as strong as a chain in which the eye strength of the chain tov area of a single thickness of wire whose end In testimony whereof I afiix my signaportionsf are welded together' and which is ture in presence of two Witnesses.

bent to orm eye and bow ortions that are in planes that.are at substa iltially right an- MICHAEL RYAN gles to each other, the wires at the base of Witnesses:

said eye, at the point where the latter joins F. W. SMITH, Jr.,

the bow, being welded together. M. T. LONGDEN.

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