US1199101A - Brake-shoe. - Google Patents

Description

A. NELSON.

BRAKE SHOE.

APPLICATION FILED ocT. 5, 1915.

Patented Sept. 26, 1916.

ATTORNEYS OFFICE.

f ALBERT NELSON, or cnrcaeo, rumors, ASSIGNOB 'ro AMERICAN BRAKE snon &

FOUNDBY COMPANY, F MAHWAH, NEW JERSEY, A CORPORATION 0]? EW JERSEY.

v mans-snot.

1,199,101. specification Letters Patent Patented Sept. 26, 1916.

A, Application filed October 5, 1915. Serial No. 54,116. I

To all whom) it may concern Be it known that I, ALBERT Nansen, a citizen of the United States, and a resident of Chicago, in the county of Cook and State 'of Illinois, have made and invented certain new and useful Improvements in Braketion.

Shoes, of which the following is a specifica- My invention relates to reinforcing hacks for brake shoes, and concerns in particular the construction of the attaching lug, and its mode of securement and anchorage to the back proper.

It is anob ject of my invention to provide =a separate attaching lug which is 'so formed and constructed, that the reinf rcing cast metal, which ordinarily extends p from the body of the shoe and around the lug so as to reinforce and supplement the same, is rendered unnecessary and is omitted, whereby a material savin of cast metal is efiected and the weight 0 the shoefwhen scrapped, is materially reduced.

, A further object is to provide a brakeshoe back having a separately formed boxshaped lug of such configuration and arrangement as to prevent its becoming broken or crushed, either during transportation or while in service.

A further object is to provide an improved 'securement and anchorage between the lug and the back, whereby. the lug is securely .held in the direction of the length ofthe back.

1 Other objects and advantages will appear as the description proceeds, it being understood that changes in the precise embodiment of my invention can be made within the scope of what is claimed, without departing from the spirit thereof.

The preferred embodiment of my invention is disclosed in the accompanying drawof clearness, illustrating the same unaccom panled by the reinforcing back.

Referring specifically to the several views,

the separately formed attaching lug is stamped from a single blank, illustrated in its preferred embodiment in- Fig. 4, which blank includes the top portion12, attaching end wall portions-13, and the side portions 14, the latter being enlarged toward their outer extremities and provided with confronting U-shaped slits 15 therein. By the action of suitable dies, the blank is bent into the boxshaped lug, illustrated in Fig. 5, which includes the attaching end walls 13', the side walls 1% and the top 12. The end walls, which, in common with the side Walls, are formed as a part of the top,-project down between the said side Walls and brace and hold them against crushing and distortion. The

side walls, and the extremities thereof are bent beneath and against the reinforcing back plate, thus securely anchoring the lug thereto. The lug, as thus constructed, may be used with the ordinary type of steel reinforcingback. The special form of back illustrated in the drawings, is provided with and contains T-shaped slits v(not shown) at its sides, the resulting flaps 11 being bent outwardly and above the plane of the back,

to thus form anchoring and holding flanges;

The formation of the holding flanges reduces the width of the central portion of the back to the required amount, and this reduced portion is preferably crimped in an outward direction, so that the extremities of the end Walls of the lug,'which are bent therebeneath, are disposed in or above the general plane of the back. The lower extremities of the sides 14 'rest upon the re inforcing back 10 and receive therebetween, and contact with, the holding flanges 11, which in this form of construction, extend betwe n the side and end walls of the lug,

.Whereoy the lug is securely anchored against movement in the direction of the length of the back. I The reinforcing back and attaching lug j are placed Within a suitable mold, and the 5, wearing body 18 is cast thereon, the molten 10 inforc'ing" back'rrenders unnecessary additional-securing,means for holding the two together, 1,The'l";foregoingteffects a material "saving infmetallover the usual form of ke slioe, ",wherein the cast metal, of necessitjfli flows u andar'ound the attaching lug to/siipplernenijthe; same and to strengthen 'tne-jsec eme'nt ,between the lug and the brake sli'oe back".The inward turning of thetongu'e l7j pi'esent's a smooth bearing for ,24 )'-the"shoe attaching key, and also brings the topjwall of the key op the Standard distance fronifth'e top of the lug, without the use of excessively heavy metal in the construction of the lug itself.

What I claim is 1. A brake shoe lug, comprising connected sides and top, attaching arms connected to said top projecting between said sides and with the ends thereof being bent to engage a brake shoe back, said sides provided with U-shaped slits therein defining tongues connected to the top of said lug, said tongues being bent inward beneath and into contact with the lower surface of said top.

2. An article of the class described com- ,prisig a reinforcing back with upstanding 'iiolding flanges adjacent the central portion thereof, an attaching lug including a top and sides, ,the said sides contacting with and reinforced by said holding flanges, at-

taching arms carried by said top projecting between said holding flanges and engaging the under surface of said reinforcing back, said sides provided with key openings therein.

3. A brake shoe comprising a reinforcing back with outstanding holding flanges .adjacent the central portion thereof, an attaching Iugformedwith a top and spaced sides, with the sides thereof contacting with the said holding flanges, said sides pro-- vided with U-shaped slits therein, and with the resulting tongues being bent into contact with the inner surface of said top, at-

taching arms conneeted to said. top, contacting with said holdingflangesand anchored to said ba'ck,an d a wearing bodyfanchored to said back.

4. A brake shoe comprising a reinforcing back with a reduced and outwardly crimped central portion, outstanding holding flangesface of the crimped portion of said back;

and disposed above the lower surface of said back, and a wearing body anchored to said reinforcing back.

5. A box-shaped brake shoe lug comprising a top, side walls carried thereby and provided with key openings therein, end walls connected to said top and projecting between said side walls, and means carried by said walls adapted to engage a brake shoe back and anchor the lug thereto.

6. A brake shoe lug comprising a top, overlapping end and side walls carried thereby, said si'le walls provided with keyopenings therein, andsaid end walls projecting beneath said side walls and adapted to engage a brake shoe back and anchor the said lug thereto.

7. A box-shaped brake shoe lug consisting of connected top, end and side walls, said side walls projecting between and beyond said end walls and provided with key openings therein, and attaching means carried by said walls. l

8. A reinforcing back for brake shoes, a

lug anchored thereto and consisting of a top, end and side walls connected to said top, with the side walls provided with key openings therein and projecting between said end walls, attaching means carried by said ALBERT Manson. WVitnesses W. C. Cmrrs, S. D. lVlrnowskr.

Copies 0! this patent may be obtained for nve cents each, by addressing Commissioner 01. Patents,

Washington, D. C.

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