US475053A

US475053A - Leather washer

Info

Publication number: US475053A
Authority: US
Publication date: 1892-05-17
Anticipated expiration: 1909-05-17

Description

(No Model.)

L. M. CABANA. LEATHER WASHER.

. No. 475,053. v PatentedMay 17, 1892.

aww

UNITED STATES PATENT OFFICE.

LEON M. GABANA, OF BUFFALO, NEYV YORK.

LEATHER W'ASHER.

SPECIFICATION forming part of Letters Patent No. 475,053, dated May 17, 1892. Application filed December 14, 1891. Serial No. 414,905. (No model.)

To all whom, it may concern:

Be it known that I, LEON M. CABANA, a citizen of the United States, residing at the city of Buifalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Leather Washers, of which the following is a specification.

This invention relates to that class of leather washers which consist of a strip of leather bent into circular form and united at its ends.

The object of my invention is to provide a simple and inexpensive fastening for the ends of the washer, which is hidden from View, so as to form a neat joint, and which can be readily applied to the ends of the leather strip.

In the accompanying drawings, Figure 1 is a perspective view of the blank or strip of leather from which the washer is formed, showing the connecting-wire inserted in one end thereof. Fig. 2 is a side elevation show ing the strip bent preparatory to uniting its ends. Fig. 3 is a section of the washer at right angles to its axis. Fig. 4 is an elevation of the finished washer. Fig. 5 is a detached View of the fastening or connecting wire.

Like letters of reference refer to like parts in the several figures.

A represents the flat blank orstri p of leather from which the washer is formed and which is cut to the proper length to form a washer of the desired diameter. 1

b is the fastening whereby the ends of the strip are united for forming the washer. This fastening consists of a connecting-wire which extends across the joint formed at the abutting ends of the leather strip, and is embedded partly in one end of the strip and partly in the other, the strip being provided in its ends with longitudinal openings for receiving the connecting-wire, as shown in Fig. 3. The connecting-wire is provided on its surface with notches or recesses 0, into which the contiguous fibers of the leather are compressed,whereby the fastening-wire is tightly embedded in the ends of the leather strip, so as to firmly resist withdrawal. The notches or recesses c are preferably formed with abrupt rear edges to produce barbs or spurs which penetrate the fibers of the strip and aid in confining the wire in place.

In forming the washer the holes for the recessed connecting-wire are formed in the ends of the strip by an awl or other puncturingtool, and the connecting-wire is inserted in the opening in one end of the strip to about its middle, as shown in Figs. 1 and 2. The ends of the strip are then brought together and the projecting portion of the connectingwire is inserted in the opening in the opposite end of the strip. The connecting-wire is inserted in the ends of the strip in a straight form, so that the strip after having its ends united does not form a true ring, but is flat at the joint. The leather ring so formed is next compressed in any suitable manner so as to compact the fibers of the leather and press the same into thenotches or recesses of the connecting-wire and around its barbs or projecting edges, thus securely embedding the wire in the end portions of the strip.

I prefer to compress the washer by means of the well-known presses employed in the manufacture of such washers, and which consist, essentially, of a die provided with a cylindrical shaping-cavity, flared at its upper portion for receiving the imperfect or irregularly-shaped ring and having a central stud for centering the washer, and a plunger whereby the ring is forced into the cylindrical lower portion of the shaping-cavity and compressed.

In forcing the leather ring to the bottom of the shaping-cavity the flattened portion of the ring is properly curved by the cylindrical wall of the shaping-cavity, thus giving the washer a true circular form and at the same time hardening it by the pressure to which it is subjected. As the connecting-wire is flexible, it yields in shaping the washer in the die and is bent concentric therewith, as shown in Fig. 3. By thus curving the connecting-wire it offers a greater resistance to withdrawal than it would if it were straight.

In my improved washer the fastening which unites its ends is entirely concealed from view and forms avery close joint, which, after the washer is compressed, is scarcely visible, giving the washer the appearance of a smooth neat joint and a snfliciently secure connection, but it is cheap and permits the ends of the washer to be quickly united.

I am aware that the ends of leather belts have been united by a double-ended screw having gimlet-points; and I do not wish to claim such a fastening, because it is unsatisfactory for connecting the adjoining ends of leather axle-washers.

I claim as my invention- A Washer consisting of a strip of leather bent into circular form with its ends abutting and connected by means of a barbed wire inserted into perforations in said ends and curved concentrically with the leather, the whole being compressed to embed the fibers of the leather into the barbs of the connecting-wire, as set forth.

Witness my hand this 12th day of Decem- 3o ber,'l891. I

LEON M. CABANA.

Witnesses:

CARL F. GEYER, EMIL NEUHART.