US653798A

US653798A - Tubular rivet.

Info

Publication number: US653798A
Application number: US683958A
Authority: US
Inventors: William R Fox
Original assignee: FOX MACHINE Co
Current assignee: FOX MACHINE Co
Priority date: 1898-02-23
Filing date: 1898-06-20
Publication date: 1900-07-17
Anticipated expiration: 1917-07-17

Description

Patented July I7, |900.

vw. n, Fox. TUBULAR BNET.

(Application led June. 20, 18H8.)

(No Kodak.)

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UNITED STATES IVILLIAM' R. FOX, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR 'IO THE FOX PATENT OEEIEE.

MACHINE COMPANY, OF SAIWIE PLACE.

TUBULAR River.

SPECIFICATION forming part of Letters Patent No. 653,798, dated July 1f?, 1900.

Original application iiled February 23,1898, Serial No. 671,323. Divided and this application iiled J'une 20, 1898. Serial No. 683,958. (No model.)

To ail whom t may concern,.-

Be itknown that I, WILLIAM R. FOX, a citizen of the United States, residing at Grand Rapids, county of Kent, and State of Michigan, have invented certain new and useful Improvements in Tubular Rivets, of which the following is a specication.

This application is a division of my application filed February 23, 1898, Serial No.671,323, which was patented November 15, 1898, No. 614,166.

My invention relates to improvements in tubular rivets of that class having annular shoulders for spacing the articles to be connected and reduced portions or extensions adapted to be headed down or upset to clamp the articles firmly against the shoulders. Heretofore such rivets have usually been made by turning down a piece of metal tubing or by making the rivet out of a solid piece of metal or rod, boring out the hole, and turning down theends; but such a method adds too much to the cost of the article to make it a commercial success.

The object in the present invention is to overcome this diiculty; and my invention consists in the improved article, said article consisting of a tubular rivet composed of a sheet-metal blank rolled with its edge reduced to form a shoulder.

The invention is illustrated in the accom/- panying drawings, in which Figure 1 is a sectional viewV showing two metal plates connected by my improved rivet. Fig. 2 is a perspective view of the rivet. Fig.

3 is a view of the blank previous to its being rolled up to form the rivet, and Fig. 4 is a plan view of a modification.

In the manufacture of my improved rivet I first form a plain blank in which the edges are reduced by rolling or pressure similarly applied, so that the central part a oi the blank, which forms the body of the rivet, is of the normal thickness of the blank or wall of the body of the rivet, While the edges a a are reduced in thickness to form the ends of the rivet, and there is left on each side of the thicker central portion of the blank a shoulder. The blank for the rivet, cut to proper length, is then rolled into the form of a rivet, as shown, for example, in Fig. 2, and is then complete for use. Its application is illustrated in Fig. 1, in which the plates B rest upon the shoulders, with the thicker portion o. between and the thinner or flange portions forming the ends of the rivet inserted through the plates and burred or turned over upon the plates.

I claim- A tubular rivet composed of a rolled shouldered blank having a thicker central portion and thinner edges, said blank being formed in tubular shape, with the shouldered surface outward, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM R. FOX.

Witnesses:

GEORGE s. MILLER, GEO. K. MGMULLEN.