US313772A

US313772A - Top-prop nut

Info

Publication number: US313772A
Authority: US
Publication date: 1885-03-10
Anticipated expiration: 1902-03-10

Description

N0 Model.)

B. ROTHLISBERGER.

TOP PROP NUT.

Patented Mar. 10, 1885.

, Unirnn firarns PATENT l l lQEO ERNESTE ROTHLISBERGER, OF CINCINNATI, OHIO.

TOP-PROP NUT.

SPECIFICATION forming part of Letters Patent No. 313,772, dated March 10, 1885.

Application filed May 29, 1884. No model.)

T 0 all whom it may concern.-

Be it known that I, Eaunsrn ROTHLISBER- GER, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Carriage-Top Bolt-Heads, of which the following is a specification.

My inventionrelates to the manufacture of bolt-heads adapted to be used for carriagetops and other similar purposes.

The object of my invention is to furnish a cheap ornamental leather-finished bolt-11ead, which may be screw-threaded and used as a prop-nut, or may be permanently attached to the shank of the bolt, as desired, all of which will be fully set forth in the description of the accompanying drawings, in whic11- Figure l-is a top plan view of my improved bolt-head. Fig. 2 is a vertical cross'section showing the same screw-threaded. Fig. 3 is a vertical cross-section of the molding. Fig. 4. is a plan view of the finished or ornamental portion of the head. Fig. 5 represents a metallic stiffening-blank. Fig. 6 shows the bolthead permanently attached to the shank.

A represents a metallic shank,which is provided with a circular concave head, a.

B represents a molding, which is struck up from an annular sheet-metal blank, first into the form shown in Fig. 3.

b represents the horizontal portion of the molding, which covers the outer peripheral edge of the bolt-head.

0 represents a vertical flange.

0 represents a circular piece of finished leather or other fibrous material of suflicient size to fit within the vertical flange c.

D represents a concave metallic blank,whicl1 is used as a stiffening to support and hold the leather in its position. After the blank D Th is stiffening metallic blank D is placed against the leather. This is made concave or cupshaped, so that its outer edge will rest uponthe upper side of the shank-head a, and the concave portion will hold the leather firmly in the desired form. placed within the molding-flange c, which flange is then spun or turned down upon the under side of the flange a of the head of the shank, the molding b c firmly holding the parts A B O D together to form the-bolthead.

When this bolt-head is desired to be used as a nut, the shank is pierced and tapped with screwthreads E to engage with the threads of the bolt to which the head is to be applied.

When this bolt-head is not designed to be used as a tap, the shank A is made solid, as

shown in Fig. 6, in which form it is used asa bolt or rivet. The molding b may have imitat/ion stitches struck up upon its inner pe-. riphery, so as to imitate leather-stitching, as

shown in Fig. 1.

I claim- 1. A bolt-head for carriage-tops combining in its structure a shank, A, having the head a, the disk D, resting on the head, the covering Oupon the disk, and the molding B,overlying the edge of the covering and secured to the head, substantially as described.

2. A bolt-head for carriagetops consisting of the following elements, to wit: the shank A, having the circular head a, the ooncavoconvex disk D,resting at its edge on the head, the flexible covering O on the disk, and the molding B, having the flanges b overlying the covering and the flange c underlying the head, substantially as described.

In testimony whereof I have hereunto set my hand.

EBNESTE RO'IHLISBERGER.

Witnesses:

Jos. W. Suns, M. E. MILLIKAN.

The head of shank a is U