US1158561A - Brake-shoe. - Google Patents

Description

FITZ WILLIAM SARGENT.

BRAKE SHOE.

APPLICATION FILED AUG.20, 1915.

Pafented Nov. 2, 1915.

\\\ TWIII WITNESSES Ill/VE/VTOI? I we M" 1/1 Mia;

FITZ 'WIIiLIAM SARGENT, OF IVIA'HWAH, NEW JERSEY, ASSIGNOR TO AMERICAN BRAKE SHOE & FOUNDRY COMPANY, MAHWAH, NEW JERSEY, A CORPORATION OF NEW JERSEY.

BRAKE-SHOE.

Specification of Letters Patent.

Patented Nov. a, rats.

Application filed August 20, 1915. Serial No. 46,462.

State of New Jersey, have made and invented certain new and useful Improvements in Brake-Shoes, of which the following is a Specification.

This invention relates to brake shoes, and

concerns in particular that class or type which are provided with reinforcing backs,

it being among the objects of-the' present in- 4 vention to so construct or form the shoe as to obtain the most secure andpermanent anchorage of the body of the shoe to the reinfo cing back, so that as the body. of the shoe becomes excessively worn and cracked, the metal will not fall away or become sepa rated from the reinforcing back, either in whole or in part.

It has been found 1n practice that in brake shoes, as ordinarily constructed, the expanded metal, which is contained inthebody of the shoe and holds the same together should it become cracked, does not prevent the breaking up or separation of that portion of thebody of the shoe which is anchored to the back thereof after the greater or larger part of the body and the expanded metal inserts have been worn away. or-

dinarily this unreinforced portion of the", body metal of the worn shoe becomes cracked and broken in service and separates and falls away from the reinforcing back.

In order to avoid the foregoing. disadvantages, I provide a binding and reinforcing member, preferably formed of expanded or open-work metal, and securely attach the same to the steel reinforcing back, so that it contacts with the same throughout its entire area. The cast metal of the body of the shoe is thus reinforced at its connection andv secur'ement to the reinforcing back, and the reinforcing back and expanded metal act as a single unit for the reinforcement and anchorage of the body of the shoe. Thus, the metal which is anchored to the back, as Well as adajcent portions thereof, is reinforced throughout,-and all danger and likelihood. of the body becoming fractured and broken between the expanded metal and the steel back, and the separation of the two, is eliminated. v

Other objects and advantages will appear as the description proceeds, wherein it is to the line of Fig.1; Fig. l is a view in perspective of the reinforcing back and the binding member, illustrating the manner in which the two are wired and securely held together, resulting in their contact throughoilt.

' Referring specifically to the several views,

the reinforcing back 5 is provided with the looped portion 6, which, in conjunction with the openings 7, which extend through the sides thereof, form an integral key lug. The reinforcing back is further provided with the usual openings '8, into which the metal of the cast body of the shoe extends.

In order that the full benefit ofthe reinforcing back 5 will be realized and obtained, I 'provide a binding or reinforcing member 9 of a length and width approximating the over-all, dimensions of a finished shoe, and preferably formed of open-work or expanded"metal, and securely hold the same in contact with. the reinforcing back by the wire loops 10, or analogous means. The binding and reinforcing member is curved so as to correspond to the back '5, and contacts with the same throughout the entire length thereof. In forming the shoe, the reinforcing back, with the binding member secured thereto, is placed within a mold, and the body 11 is cast thereto, portions of the metal flowing up and about the integral lug 6, and portions above the ends of the reinforcing back to form the end stops 12.

The metal which engages and becomes prevented from becoming fractured. The.

wearing body of the shoe may be provided, in addition to the reinforcing member aboveoutlined, with the ordinary form of body reinforcement such as a bundle of expanded metal, or the usual type of inserts, it being noted .that there will be no likelihood of'the body of the shoe becoming fractured immediately adjacent the reinforcing back, as,

has heretofore been the case, sometimes resulting in the separation of the body of the shoe as a whole from'the reinforcing back.

The secure anchorage of the binding member 9, within the cast body of the shoe, and its position beneath and across the looped lug, provide for the support and.

anchorage of the body metal of the shoe, even though the same should become cracked between the sides of the lug. The binding member being approximately equal inwidth to that of the cast body of the shoe in which it is embedded, reinforces the same throughout. 'The expanded metal of the binding member in conjunction with the cast metal of the body is not in any way injurious to a car wheel, so that the shoe may be worn down to the steel back, with a minimum weight of scrap resulting. WVhat I claim is 1. A brake shoe comprising a reinforcing back, a reinforcing and binding member of openwork metal contacting throughout with said back and a wearing body anchored to said back and reinforcing member.

2. A brake shoe comprising a reinforcing back, with a looped .lug, a reinforcing member of open-work metal extending across the open portion of said lug and a wearing body anchored to said back and said reinforcing member.

A brake shoe comprising a reinforcing back with an integral open lug, a reinforcing and binding member contacting with binding and reinforcing member of expanded metal contacting with said back and approximating the over-all dimensigns of said shoe and a wearing-body cast to said back and binding member.

Signed .at Mahwah, in the county and a wearing body cast to of a Bergen and State of New Jersey this 18" day of August A. D. 1915.

' FITZ WILLIAM Witnesses:

R. G. AUG-UR, C. D. JoNEs.

SARGENT.

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