US1260065A - Chain-link. - Google Patents

Description

M. B. RYAN.

CHAIN LINK.

APPLICATION FILED FEB. 9, 1916.

Patented Mar. 19, 1918.

' vwautoz W s W $513 attoznegp To all whom it may concern:

MICHAEL 3. RYAN, OF MILFORD, CQNNECTICUT.

I CHAIN-LINK.

Specification of Letters Patent.

Patented Mar. 19, 1918.

I Application filed February 9, 1916. Serial No. 77,113.

Be it known that I, MICHAEL B. RYAN, of Milford, in the county of New Haven and in the State of Connecticut, have invented a certain new and useful Improvement in Chain-Links, and do hereby declare that the following is a full, clear, and exact description thereof.

The object of my invention has been to provide a welded chain link which shall have, amon other advantages, those of being adapte to the making of a comparatively perfect weld; of requiring a minimum amount of wire, and of being free from shoulders or projections that are liable to catch; and to such ends may invention consists in the welded chain link hereinafter specified.

In the accompanying drawings Figure 1 is a plan view of a blank adapted to form my link;

Fig. 2 is a plan view of a section of chain whose links embody my invention, the links being plain; and,

Fig. 3 is a similar view of a section of chainin which the links are twisted.

My invention is capable of embodiment in different forms, and while I shall illustrate it by a description of two embodiments, it is to be understood that such embodiments are only typical of many other embodiments of which it is capable, and my claims are not to be restricted thereto.

Referring to Figs. 1, 2 and 3, the blank 1 consists of a length of wire which is severed by diagonal cuts that form beveled faces 2 and 3 upon opposite ends of the blank, one of which slants upward and one of which slants downward, so to speak. This blank is cheap to form since the out which severe the blank from the rod at the same time make both the rearmost face on the severed blank and the foremost face on the next blank to be severed. In fact, the blank is practically as cheap to form as if it merely had a squared end.

A link 4: (as shown in Fig. 2) is formed by bending the blank upon itself at each end until its beveled faces 2 and 3 are in contact with each other, and until the ends of the blank rest upon the adjacent strand 5 formed by the central portion of the link. Thus two eyes 6 and 7 are formed, which are,'or may be, of equal size.

By welding the facesQ and 3 together,

the extremities of the link are converted into a continuous strand 8, so that the link is, in eflect, a closed loop formed of one continuous wire, the strand 8 to be welded to the adjacent strand 5 by welding either one or both of the extremities to the strand 5.

If desired, the links, after being formed as shown in Fig. 2, or at the same time as being so formed, may be twisted a shown in Fig. 3.

My chain link has the following advantages:

It is made with a minimum of wire, the length of the blank being no greater than if it were originally formed in link shape instead of being formed from a section of wire.

The link (when properly welded) is as strong as if it were first formed of a continuous loop.

Because of the freedom of escape of molten metal, both the weld between the beveled faces of the ends of the blank, and that between the ends and the adjacent strand 5 of the link, can be perfectly formed and without blow-holes, bubbles or other weaknesses.

This double welding can be perfectly performed by a single operation.

The beveled ends of the blank not only permit a wire to be formed that is as strong as if the wire were continuou originally, but it results in a joint having the shape and size of the wire itself, and thus without shoulders or projections that might catch and prevent the free running of the chain, This advantage also avoids any necessity for finishing the link to remove such shoulders or projections.

Applicants link is practically a double link, and is about twice as long as an ordinary open welded link made of the same size of wire, so that it is in effect two links made with a single weld. If the link were made open with the same size of wire, the

wire would be likely to become distorted in use. The closing of the wire together, and welding at the middle of the link, braces the link against bends and distortions to a considerable extent.

While applicants link is braced by welding, the welds running lengthwise of the wire cause the strains to be straight in the direction of the length of the wire, instead of twisted or crosswise, and thus the welds are able to stand all of the strain which can be brought upon them, and the welds instead of the weld.

I claim:

1. A chain link eomprisin a wire loop having a Side bent to extend a ong the longitudinal axis of the loop, the ends of said wire forming the op osite side thereof being similarly bent to he along the first mentioned side, said ides being welded together at their contacting portions.

2. A chain link comprisin a wire 100 having a side bent to extend a ong the longitudinal axis of the loop, the ends of said wire forming the opposite side thereof and being similarly bent to lie along the first mentioned side, said sides being welded together at their contactin portions, and said ends being welded toget er.

3. A chain link comprising two end eyes connected'by contacting arallel side portions, the ends of said 1111]? meeting to form one side portion, said side portions being welded together at their points of'contact.

, 4. A chain link comprising two end eyes connected by contacting parallel side ortions, the ends of said link meeting to orm one side portion, said side portions being welded together at their points of contact, and said ends being welded together.

5. A chain link comprising a wire strand in the shape of a loop having ends abuttin and lying alon one side of the loop, said ends being welded to the above mentioned side of said 100p.

6. chain link comprising a wire strand in the shape of a loop having ends abutting and lying along one side of the loop, said v40 ends being welded to the above mentioned side of said loop and to each other.

In testimony that I claim the foregoing I have hereunto set my hand.

- M CHAEL B. RYAN. Witnesses:

ANNA Gmss.

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