US605010A

US605010A - Richard poore

Info

Publication number: US605010A
Authority: US
Publication date: 1898-05-31
Anticipated expiration: 1915-05-31

Description

v(No Model.)

RY. POORE. HOLLOW STUD 0R RIVET.

No. 005,010. A Patented May 31, -1008.

Jay. 7'

UNITED STATES PATENT OEEICE.

RICHARD POORE, OF LONDON, ENGLAND, ASSIGNOR TO LIONEL CUTHBERT CROPPER, OF SAME PLACE.

HOLLOW STUD OR RIVET.

SPECIFICATION forming part of Letters Patent No. 605,010, datedy May 31, 1898.

Application filed December v2, 1897. Serial No. 660,515. (No model.)

To all whom, it may concern:

Be it known that I, RICHARD POORE, manufacturer, of 33 Chaucer road, Herne Hill,x London, England, have invented certain newV and useful Improvements in Hollow Studs or Rivets, of which the following is a specication.

The object of this invention is to produce hollow studs or rivets in a simple and economical manner.

In the accompanying drawings, Figure 1 shows in plan view, and Fig. la in edge view, the blank stamped out from a sheet of metal. Fig. 2 shows the rst operation in order to produce a cylindrical stud. Fig. 3 shows the cylindrical stud in elevation, and Fig. 4 the same in plan view. Fig. 5 'shows in elevation, and Fig. 6 in plan view, approximately the shape the hollow stud or rivet will assume when in use; and Fig. 7 shows in section a'portion of material with the stud or rivet in position.

In the several figures the 'shape produced is somewhat exaggerated to show more clearly the nature of the invention.

These hollow studs or rivets are more particularly intended for the production of a wearing-surface for the soles and heels of boots and shoes, consisting of small plugs of leather cut from the leather of the sole or heel by driving the stud into the leather and which are thus forced in the studs and become compressed, the ring of metal serving" not only to hold them firmly in position, but also as part of the wearing-surface.

The studs hitherto employed have been headed studs driven through the sole from the back; but this form of stud has been found to present inconveniences which the present invention is designed to overcome.

To this end this invention consists in forming tubular or hollow studs or rivets with a number of teeth or points at the entering end, so arranged that when the studs are being driven the teeth or points will spread out in the material, ythus forming,'as it were, heads in the middle, say, of the thickness of the same, and at the same time each hollow stud becomes iilled with a plug of compressed material, which is not severed from the main portion of the material.

In carrying out this invention the blank A, as shown in Fig. 1, is cut from a sheet of steel or other suitable metal. The action of the stamping is to form a bur a on the under side of the blank at each point and give each point a slight curve or inclination downward, I as seen at a1, Fig. la. The blank is next placed in a suitable die with the burs downward and is stampedto the U shape seen at 6o Fig. 2. Then by another operation in another die the arms of the U are closed in, so as to produce a cylinder, with the points turning slightly outward, as seen at a2 in Figs. 3 and 4. The stud thus completed is driven into the leather of the sole or heel from the front, and during the driving operation the outwardly-turned points spread and cut their way laterally into the leather, as seen at a4 in the sectional view, Fig. 7.

Figs. 5 and 6 show the approximate shape which these studs or rivets assume after being driven and which has been ascertained by cutting such driven rivets from a piece of leather.

It may be here remarked that it is not intended t0 conine the use of such hollow studs or rivets to the production of wearing-surfaces for thesoles and heels of boots and shoes, as they may be employed for any purpose for 8o which they may be suitable.

I claim- As an improved article of manufacture, a stud struck up from a single piece of metal and having a hollow body portion and a se- 85 ries of teeth formed thereon, the said teeth being curved or liared outwardly, whereby upon driving the stud into a material which it is to reinforce, the teeth will be caused to spread by the resistance offered thereto so as 9o to form a retaining-head embedded within the material, the said material inclosed by the said stud being crowded more compactly to form with the body portion of the stud a durable wearing-surface, substantially as de- 95 scribed.

RICHARD POORE.

Witnesses:

H. K. WHITE, H. F. GoL'rz.