US1121209A

US1121209A - Brake-shoe.

Info

Publication number: US1121209A
Application number: US77862413A
Authority: US
Inventors: John J Tatum
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-07-11
Filing date: 1913-07-11
Publication date: 1914-12-15
Anticipated expiration: 1931-12-15

Description

Patented Dec. 15, 1914.

J. J. TATUM.

BRAKE SHOE.

APPLICATION FILED JULY 11. 1913.

mu rrs PATEN @FFIQE.

JOHN J. TATUM. OF BA BBAKL Application filed July 11.

To all 'u: 710m it may concern:

Be it known that 1, JOHN J. TATUM, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improve ments in Brake-Shoes, of which the following is a specification.

The object of my invention is to provide the stiffening or girder support extending lengthwise of the shoc,.whereby the wearing life of the shoe, as well as the strength of the shoe is increased.

My invention consists broadly in a brake shoe composed of cast metal formed into a solid homogeneous mass with a reticulated strengthening member embedded therein and extending lengthwise of the shoe.

In the drawings :-Figure 1 is a perspective view of a brake shoe embodying my invention. Fig. 2 is a perspective view of the strengthening member detached. Fig. 3 is a similar view of a slight modification of the strengthening member showing another em bodiment. Fig. 4 is a cross sectional view of another embodiment of strengthening member. Fig. 5 is a cross sectional view of a sti 1 further embodiment of the strengthening member. Fig. 6 is a cross sectional view of still another embodiment of the strengthening member.

1 represents a brake shoe composed of cast metal formed into a solid homogeneous mass and adapted for use on the present type of brake beam equipment.

2 represents a reticulated corrugated member embedded in the shoe when it is cast, the metal of the shoe flowing through the openings in the reticulated member, thus firmly binding said member in said shoe securely and intimately against relative movement with the shoe. The reticulated member may be constructed of wire mesh or expands metal and it is pressed into V-shaped folds 3 and then pressed to give it an arcuate shape coinciding with the radius of the fin ished shoe, said strengthening member extending throughout the entire length of the shoe from end to end and giving a girder like support to the shoe throughout its area.

I may form the strengthening member with side marginal flanges l as shown in Fig. 3 and may have but one fold as shown in Figs. e and 5. Again, I may form said LTIMORE, MARYLAND.

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Lett r P n Patented Dec. 15, 1914.

1913. Serial No. 778,624.

strengthening member with a central fiat port on 0 with said marginal folds as shown in Fig. 6.

lvhile a strengthening member, embodying my invention, materially strengthens the shoe and adds to the life of the shoe, at the same time, it does not interfere with the friction produced by the cast iron forming the body of the shoe and will not prevent the retarding of the car wheels when the brakes are applied but will give a more desirable retarding effect to the brake shoe and will not out grooves in the treads of the wheels.

What I claim is 1. As a new article of manufacture, a brake shoe composed of cast metal, formed into a solid homogeneous mass, with a wire netting formed into V-shaped folds and extending lengthwise of the-shoe.

2. As a new article of manufacture, a brake shoe composed of cast metal formed into a solid homogeneous mass, and a reticulated member formed of V-shaped folds extending lengthwise of the shoe and serving as a girder support for the shoe.

3. As a new article f manufacture, a. brake shoe composed of cast metal, formed into a solid homogeneous mass, and a reticulated member made with a multiple of V- shaped folds formed throughout their length on the arc of the shoe and embedded in said mass.

4. As a new article of manufacture, a. brake shoe composed of cast metal, formed into homogeneous mass, with a reticulated member embedded therein; said member comprising a plurality of V shaped folds formed on the are of the shoe and extending in the direction of the length of the shoe, and giving a girder-like support for the shoe throughout its area.

5. A combined wearing and strengthening insert for brake .hoes comprising a corrugated member, the corrugations of which extend in the direction of the length of the shoe.

6. As a new article of manufacture, a strengthening member, adapted to be embedded in a cast brake shoe, comprising a reticulated body formed with \l-shaped folds extending in the direction of its length.

7. As a new strengthening member shoes,

for brake article of manufacture, a

adapted to be embedded in the shoe when marginal. flanges extending in the directinn 10 cast, comprising a reticulated arcuate body of its length. formed with V-shapecl folds ext-ending in the r The foregoing specification signed at Baldirecgon of its length I f timoreflfiii this 20 day of June, 1918. 7

5 8. s a new article 0' manu acture, a m" strengthening member for brake shoes, 7 JOHN TAiUM' adapted to be embedded in the shoe when In' presence of two Witnesses: cast, comprising a reticulated arcuate body SIMON' GREENEBAUM,

formed with V-shaped folds and fiat, side, ELLA TATUM.

copies of this patent may be obtained for five cents each, bfy addressing the Commissioner of Patents, Washington, D. G.