US1045997A - Brake-shoe. - Google Patents

Description

0. M. MENDENHALL,

BRAKE -SHOE.

APPLICATION FILED FEB.7, 1910.

Patented Dec 3, 1912.

j to provide a brake CLARENCE M. MENDENHALL, OF NEW RAILWAY MATERIALS COMPANY, OF CHICAGO, ILLINOIS, .A

ILLINOIS.

ROCHELLE, NEW YORK, ASSIGNOR TO THE CORPORATION OF BRAKE-SHOE.

Application filed February 7, v1910. Serial No. 542,377.

To all whom it may concern:

Be it known that I, CLARENCE M. MENDEN- HALL, a citizen of the United States, residing at New Rochelle, in the county of Westchester, State of New York, have invented new and useful Im rovements in Brake- Shoes, of which the ollowing is a specification.

This inventionrelates to improvements in brake shoes and particularly to that type of shoe which is commonly known as a reinforced shoe by reason of the fact that a reinforce or strengthening member is em bedded in the shoe at or adjacent to its back. U 1 The object of this invent-ion is to provide a reinforce or' strengthening member of simple construction which can be readily made of comparatively inexpensive material and formed into shape without loss of material and by simple mechanical operations.

Another object-0f the invention is to provide a grid or skeleton adapted to be embedded in a brake shoe at or adjacent to its back to reinforce or strengthen the shoe, and particularly the attaching lug and the ends of the shoe.

Further objects of the invention are to provide a forged reinforce or back for a brake shoe in general form of a grid or skeleton having a centrally disposed key lug and oppositely formed loops; and also shoe embodying such a reinforce. 4

In the accompanying drawings illustrating one embodiment of the invention, Figure 1 shows a brake shoe in broken lines with my improved reinforce in full lines embedded therein. Fig. 2 is a plan view of the back of the shoe illustrated in Fig. 1. Fig. 3 is a perspective of the reinforce. Fig. 4 is a plan view showing the reinforce partly formed. Fig. 5 is a sectional view Referring to the drawings, 6 is the body, 7 the attaching lug, 8 the end lugs and 9 the I end guides of an ordinary car shoe.

My invention may be embodied in any kind of a brake shoe and for this reason I have not considered it necessary to do more than indicate the outline of an ordinary car Specification of Letters Patent.

Fig. 4 comprising usual manner.

- taching lug of duced in a simple manner,

Patented Dec. 3, 1912.

shoe for the purposes of illustrating this invention.

The oblong fiat reinforce 10 (.Fig. 3) is made from a round rod of commercial 1ron 11 and first formed into the shape shown in two loops connected at the transverse part 12. Then the reinforce thus shaped is flattened as indicated by the broken lines, Fig. 4, to a desired thickness'(Fig. 5) after which the transverse part 12 is bent up to form the arc or key lug 13, for reinforcing the attach ing lug 7 The grid or skeleton is given the proper curvature to conform with the back of the shoe at' the time the arch or key lug is opposite ends by formed. The free ends 14 of the grid or skeleton reinforce are directed inwardly toward and adjacent to the arch or key lug 13. The ends 15 of the reinforce extend across the ends of the shoe beneath the end lugs 8 and not only strengthen the shoe at its ends, but revent any portion of the shoe stripping 0 of the reinforce in event the shoe is fractured. I

During the flattening operation the reinforce may be provided with beveled edges 16 as shown, and it roughened to make locking engagement with the cast iron of the shoe. The ends 15 of the reinforce may be bent up, as shown in Fig. 1, at the same time the arch or key lug is 0 ed.

In practice the reinforce is placed in a mold and the body is cast thereon in the The reinforce may be of sufiicient strength to enable the arch or key lug thereof to be used as and for the atthe shoe without providing any cast iron thereon.

By my invention I provide a forged reinforce of novel construction which is prowithout loss of material, and in a form adapted to reinforce and strengthen all of the parts of a brake shoe. The forged reinforce is strong in itself and it reinforces and strengthens the brake shoe throughout including the attaching lug.

VVha-t Iclaim and desire to secure by Letters Patent, is:

1. A forged reinforce for brake shoes conmay also be notched or v allel comprising a single flattened rod bent transv ,shape of the back of t sisting of a single flattened rod having its ends bent to form loops approximating the shape of the back of the shoe and connected by an integral transverse part at or about the I middle of the reinforce.- 4 I '2. A forged reinforce for brake shoes consisting'eof a single flattened rod having its ends. nt to form 100 s approximating the fie shoe and connected by an integral transverse part arched to form a key lug at or about the middle of the reinforce.

3. A forged reinforce for brake shoes comprising a single flattened rod having transverse parts to extend across the shoe at its middle and at its ends and substantially pararts connected with the ends of the midd epart and extending on opposite sides thereof and connected to ends of said end parts.

4. A reinforce for brake shoes made out of p a single red shaped to form a key In at its 'center and bent transversely to exten across the endof the shoe. I

k5; A forged reinforce. for brake shoes versely and arched at or about its middle't'o "form a ke lug and having the ends bent in I opposite 1 9 form a single rectangular. loop on elther side irect-ions from said ke lug to p of said key lug.

A forged reinforce for brake shoescomprlsmg a single flattened rod bent trans -versely at or about its middle'and havinga single flattened U-shaped member extending from either side of said transverse part in Copies of; this patent may be obtained-for opposite directions and integrally connected with the ends thereof.

.7, A forged reinfo icef for brake shoes comprising a singleflattened rod bent transversely and arched at or about its middle to form a key lug and having U-shaped loops extending on opposite sides of said. key lug, each of said loops being connected at one end 'to an end of said lug and free at'its other ing inclined'upwardly toward the back of 10. A reinforcing back for brake shoes formed from a single piece of wire bent to provide a central upwardly projecting ludg, the ends of which wire are bent to provi e two end loops extending in opposite directions from said central lug, and the two sides of which end loops extend from opposite ends of'said lucg, the extremities of sand wire terminating a jacent the middle portion of the back, p CLARENCE M. -MENDENHALL.

Witnesses:

- Lem 'SruBENvoLL,

ssing the Commissioner of Iatents,

' Washington, D. 0.?

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