US413439A

US413439A - Island

Info

Publication number: US413439A
Authority: US
Publication date: 1889-10-22
Anticipated expiration: 1906-10-22

Description

(No Model.)l J. H. FANNING.

CHAIN BAR. No.- 413,439. Patented ont. 22, 1889.

UNITED STATES PATENT OEEICE.

JOSEPH H. FANNING, OF PROVIDENCE, RHODE ISLAND.

cHAlN-BAR.

SPECIFICATION forming part of Letters Patent No. 413,439, dated October 22, 1889. Y

Application filed March 20, 1889.

To aZZ whom it may concern..-

Be it known that I, JOSEPH H. FANNING, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Ornamental Chain-Bars, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to an improvement in the construction of the barsv connected with watch-chains, and used usually to secure one end of the watch-chain by inserting the bar through a button-hole.

The object of the invention is to simplify the construction of chain-bars and to so cover and protect the inferior metal and the solder used in making the bar that no discoloration will be produced in use or in the usual acid test.

,The invention consists in the peculiar and novel construction by which two sleeves are secured to the body of the bar so as to cover the same and hold the connecting-link or swivel in position, as will be more fully set forth hereinafter.

Figure l is a view of my improved chainbar. Fig. 2 is a sectional View of4 the same.

Fig. 3 is a sectional View of theimproved bar,

showing the connecting-link or swivel provided with a recess in to which the open ends of the coveringsleeve enter. j

In the drawings similar letters of reference designate corresponding parts throughout.

Referring to the drawings, a indicates the bar or tube of base metal, forming the interior portion of the chain-bar.

Z9 is the swiveled connecting-link, to which the chain is connected.

c o are two sleeves or tubes, one end of each of which is open and the other end dis closed. These tubes or sleeves c c are drawn from a single piece of sheet metal. They are without seam or joint. The sleeves c c are of such length that when the bar a is inserted the swivel b can turn between the inner ends of the two sleeves, and when the sleeves are secured the swivel connectinglink h will be held in place on the bar a and be free Ato turn on the same. The sleeves c are secured by plae- Serial No. 304,031. (No model.)

ing a small quantity of solder either into the closed ends d of the sleeves or on the ends of the bar a. If the sleeves are nowpassed over the bar a and heated suiciently to melt the solder, they will be iirmly secured to the bar "a and hold the swivel b in place. This construction produces a very superior chain-bar. The bar ai, the swivel b, and the sleeves c are each made of a solid piece of metal without any joint or seam, while the only solder used is inside the sleeve in the end d, where it is well protected and is subjected to little or no strain. The sleeves c may be drawn tightly over the bar a, so that the litt-le solder used in the ends d may be dispensed with and the discoloration from the heat avoided.

In fine ornamental chain-bars the bar @may be of inferior metal, the swivel b of precious as to make a bar in all respects equal to a solid bar of precious metal, and 4even superior to such a bar, as the swivel in this construction can be passed over the bar a before the sleeves are secured and does not require to be soldered.

A fine plated chain-bar can be made by making the swivel b and sleeves c c of Awhat is known in the art as stock-plate.

It is evident that the whole may be made of inferior metal, if desired.

Having thus described my invention, I claim metal, and the sleeves c of precious metal, so

as new and desire to secure by Letters Patentj l. -A chain-bar consisting of an inner bar or tube, two tubular sleeves, each having one end closed, placed over the ends of the inner bar or tube, and a swivel placed on the inner bar or'tube between the ends of the tubular sleeves, as described.

2. A chain-bar consisting of an inner bar or tube of inferior metal, a swivel of precious metal, and two tubular sleeves made of precious metal, each having one end closed, placed over the inner bar or tube and abutting against the swivel-piece, as a new article of manufacture.

JOSEPH H. FANNING.

Witnesses:

M. F. BLIGH, J. A. MILLER, J r.