US1225583A - Brake-shoe. - Google Patents

Description

nnrrnn srarns rad ans? ormcn.

JUDSON COOK, OF ALBANY, NEW YORK.

BRAKE-SHOE.

Application filed January 10, 1917.

To all whom it may concern.

Be it known that I, JUDsoN COOK, a citizen of the United States of America, residing at Albany, in the county of Albany and State of New York, have invented certain new and useful Improvements in Brake- Shoes, of which the following is a specification.

The subject of this invention is a brakeshoe of the class primarily intended for use on railway cars, and in which the shoe godly is cast about a reinforcing plate or ac r.

The objects of the invention are: to provide a brake-shoe with a reinforcing back to which the shoe body will adhere in a most secure and firm manner; to provide a brake shoe with an attaching lug struck up from the back and secured in its struck-up position by novel retaining means; to provide a simple, cheap and eiiicient brake-shoe of the character described.

With these objects in view as will hereinafter more fully appear, my invention consists in the novel construction and arrangement of parts set forth in the following description, more particularly pointed out in the claims, and which are shown in the accompanying drawings, wherein:

Figure 1 is a central, vertical, longitudinal sectional view of a brake-shoe constructed according to my invention;

Fig. 2 is a perspective view of the reinforcing back, showing the attaching lug struck-up Fig. 3 is a plan view of the retaining means for the lug before the same is bent to shape;

Fig. 4 is a perspective view of the retaining means partly bent into lug engaging shape from the blank shown by Fig. 3;

Fig. 5 is a plan view of the back blank before the attaching lug is struck-up therefrom.

Referring to said drawing by numerals:

1 indicates the usual metal body portion of the shoe which is cast about the reinforcing back 2. Back 2, which is formed of any suitable thin metal, is provided with two cut-out portions 3, the material surrounding which is adapted to be struck-up to form an attaching lug 4. Each end of the plate or back 2 is preferably bifurcated, as shown most clearly in Figs. 2 and 5, so as to allow the material of the cast body to flow up over the back plate to a great extent and so Specification of Letters Patent.

Patented May 8, 1917. Serial No. 141,538.

bind the two parts more firmly together. Back plate 2 also has its edges beveled, as shown at 5, for the purpose of securing a more uniform joint between the cast material and the back.

The retaining means is fashioned from the H-shaped blank shown by Fig. 3. The parts 7, 7 with the arms 8, 8 are bent upwardly on the dotted lines at the edges of crossbar 6 so as to lie in planes at right angles to the plane of said crossbar; then the arms 8 are bent outwardly at about right angles to the planes of the parts 7, 7 so the whole appears of the shape shown by Fig. 4c. The fashioned retaining means is next inserted beneath the lug 4 so the crossbar 6 will lie substantially in the plane of the back portions and the arms finally are bent outwardly around the edges of the struck up lug and secured by rivets or other suitable means.

In practice the back plate is stamped or cut out, the attaching lug struck-up; the retaining member bent into form and secured in place on the lug as described; the whole is then placed in the usual mold and the shoebody cast thereon, the material of said shoe body also flowing into each end portion of the attaching lug, thereby completely inclosing the retaining member and rendering the lug more solid and firm.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination in a brake shoe, of a back having an upwardly projecting lug with side and end openings, separate retaining means located within the lug and closing the end openings, means for holding the retaining means in place, and a body portion cast around the back and against the parts of the retaining means which close the end openings of the projecting lug.

2. A brake shoe comprising a back having bifurcated end portions, a struck up lug with side and end openings and beveled edges, separately formed retaining and strengthening means inserted beneath the lug and parts bent to hold the same in place, and a body portion cast around the beveled edges of the back and against the retaining means.

3. A brake-shoe comprising a shoe body, a back upon which said body is cast, a lug struck up from said back, and means consisting of a separate retaining piece bent to shape from an H-shaped blank and having inserted beneath the lug and the arms bent 10 arms inserted beneath the lug and the arms outwardly and around the meta]. defining bent into retaining positions for boxing in the edges of the lug with part of the retainthe opening to the lug to permit the maing means closing the end openings, and a 5 terial of the body to fioW into each end of body portion east around the back.

the lug. In testimony whereof I hereunto aflix my 15 4:. The combination in a brake shoe, of a signature.

back With a struck up lug having side and end openings, retaining means with arms JUDSON COOK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

Images