US1564942A - Method of making reenforcing corner brackets - Google Patents

Description

Dec. 8, 1925-. 1.564.942 V c. M. CLARKE I METHOD OF MAKING REENFORCING CORNER BRACKETS Filed Feb. 1925 IN VE/VTOR WITNESSES Patented Dec. 8, 1925.

UNITED STATES CHARLES M. CLARKE, OF SEXUIGKLEY, PENNSYLVANIA.

METHOD OF MAKING REENIEORCING CORNERBRACKETS.

Application filed February 12, 1925. Serial No. 8,665.

To all whom it may concern:

Be it known that I, CHARLES M. CLARKE, a citizen of the United States, residing at Se-wickley, in the county of, Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Methods of Making Reenforcing Corner Brackets, of which the following is a specification.

My invention relates to reenforcing corner brackets for D-handles, of the kind in which bifurcated side arms of the main stem are connected with the ends of the grip, and to the method of making the same. It has in view to utilize sections of seamless or other tubing to form the bracket blanks, sheared and bent for attachment, as herein after described.

In the drawings:

Fig. 1 is a face view of a D-handle provided with my improved corner bracket;

Fig. 2 is a View in elevation, showing two of the blanks as sheared from a section of tubing;

Fig. 3 is a plan view of said blanks in relative position, with the surplus metal sheared away;

Fig. 4 is a view of one of the blanks bent to form;

Fig. 5 is an inner face View of the bracket.

The object in view is to provide a simple one-piece bracket adapted to embrace and cover the upper outer portion of the bifurcated side arm 2, and to extend inwardly by an annular ferrule or ring 3 for connection with and around the end of the grip 4. For such purpose, I utilize short lengths of tubing forming sections of proper length, as indicated at a, cut off from the tubing 3 indicated in dotted lines, Fig; 2.

A portion of the tubing providing the ring 3 is left intact at each end, as well as a portion 6, at each opposite side, providing the arm covering and connecting member.

The metal is sheared away between the end rings 3 and the members 6, at each opposite side, by removing such part of the tube section, indicated at Such shearing is done by suitable dies in one or more operations, so as to leave the diagonally opposite ends of members 6 rounded atthe tips, as at 5, and considerably narrower in width, as at 6.

The dies are so designed as to also leave a short straight edge 7 about midway on opposite sides, adapted to be bent around against the adjacent inner edge of ring 3, when connecting member 6 is bent down to the position in the finished article illustrated in Fig. 4. Beyond the edge 7 thetubing blank is narrowed by the shearing operation to the width of member 6, preferably by a curving filet edge 8 at each side.

Finally, the member 6 is 'swaged around to the position it occupies with relation to ring 3, providing an outer rounded shoulder 9 and a similarly rounded inner dome-shaped cavity for the upper end of side arm 2.

Holes 10 and 11 are punched for riveting connection through the grip 4 and side arm 2, in the usual way.

The special advantages of the device are in its cheapness, strength and utility. By using a. tubular blank, the ring 3 is already formed without further shaping or welding. The member 6 is likewise already of approximately the proper curvature in cross section, and the blank is otherwise generally conformable to the desired shape, when the side 6 has been bent down at approximately right angles to its original position.

The device may be easily pressed and finished to shape; the waste metal is reduced to a minimum, and the edges 77 may be easily brought into smooth registering position with the adjacent edges of ring 3, either with or without welding.

What I claim is:

1. The method of making a corner reenforcing bracket for D-handles consisting in shearing a tubular blank to provide a terminal ring of original tubular cross section and an elongated concave shank, and bending said shank at substantially right angles to the axial center of the ring. 7

2. The method of making a corner reenforcing bracket for D-handles consisting in shearing a tubularblank to provide a terminal ring of original tubular cross section and an elongated concave shank having a rounded terminal, and bending said shank at substantially right angles to the axial center of the ring with portions of its side edges against adjacent edges of the ring.

3. In the manufacture of reenforcing brackets for D-handles of the class described from tubes, the steps consisting in first re moving portions of a tubular section to provide an integral terminal rlng and an extended side piece, and then bending the side piece to operative position against the ring.

In testimony whereof I hereunto aflix my signature.

CHARLES-M. CLARKE; I

Images