US1495962A - Brake - Google Patents

Description

INVENTP A. K. PEHRSON BRAKE Filed July 13 1923 May 1924.

Patented May 27, 1924.

UNITED-STATES} ALERED' PEER/SON, or BELLEVUE, PENNSYLVANIA, ASSIGNOR T0 rn-nssnns'rnnn can COMPANY, OF PITT$BURGH, rENNsYLvAN-IA, A. OOBJPORATION or NEWJEBr BRAKE.

Application filed July V13, 1923. Serial 1%. 651,425;

To all whomit may concern:

Be it known that ALFRED K. PEHRsoN, a subject of the King of Sweden, residing in Bellevue, in the county of Allegheny and State of l.ennsylvania, have invented certain new and useful Improvementsin Brakes. of which the following'is a specification.

This invention relatest o railway truck brakes and has for an object the provision of means for maintaining the brake beams in such positions when the braking power is released, that the entire faces of the brake shoes will be substantially equidistant from the treads of the wheels.

Another object of the invention is to provide means for maintaining the brake beams of a railway truck brake level.

A further object of the invention is to provide each brake beam of a pair of adjacent brake beams with means for engaging the other beam of saidpair, said means cooperating with said beams to maintain both of said beams level.

These and other objects will be apparent from the following description Ileferring to the drawings in which like reference characters refer to like parts, Fig. 1 is a plan view of a portion of a railway car brake embodying the invention, and Fig. 2 is a sectional view of the same taken on the line 22 of Fig. 1.

Referring now in detail to the drawing, the reference character 1 indicates the car truck wheels, only one pair of which is illustrated in the drawings which are preferably mounted on an axle 2 in the usual manner. This axle may be mounted on the truck frame (not shown) in any preferred manner.

At one side of each pair of wheels a brake beam 3 is provided and atthe opposite side a brake beam 4 is provided. which beams extend transversely of the truck, preferably from wheel to wheel and adjacent their ends are supported from the truck by hangers 5 or any other suitable means. Each beam adjacent its ends is provided with heads 6 which in turn are provided with shoes 7 which shoes are adapted to engage the wheels 1 when the braking power is applied. These beams may be of any suitable construction,but as illustrated in the drawing each preferably comprises a compression member 8, a tenslon member 9, and a strut or fulcrum 10, all suitably connected together in any preferred manner. The beams 3 and 4 areprovided with members l1 and.

12 respectively, each of which is connected to th e compression member-8 of its respec; tive beam by clampingmembers 13 and bolts 114;, These members 11 and 12, when their respective beams are in their proper operative positions, extend in directions longitudinally of the truck and are each of a length greater than the distance between the tension members of the beams. Each of these members preferably passes under and engages with the tension member 9 of the beam to which it is secured and beyond this tension member, it is bent upwardly and passes over and loosely engages the tension mem-- ber of the other beam. It will be noted that any tendency of the beams to tilt will be resisted by the members 11 and 12 and both beams will thus be maintained level.

It will be apparent to those skilled in the art to which this invention appertains that changes in the arrangements and construction of the details may be made in the invention without departing from the spirit and scope of the appended claims.

Having thus described the invention what I claim as new and desire to secure by Letters Patent is 7 1. In a brake mechanism, brake beams,

means supporting said beams and means secured on each of said beams loosely engaging another of said beams to maintain said beams level.

2. In a brake mechanism, a pair of brake beams, means supporting said beams. and a pair of members for maintaining said beams level, each of said members being secured at one end to one of said beams and at its .opposite end loosely engages the other of said beams. v

3. In a brake mechanism, a pair of brake beams, means for supporting said beams, and means on each of said beams slidably engaging the other of said beams, said means being adapted to maintain said beams level.

4. In a brake mechanism, a pair of supported brake beams, means cooperating with both of said beams for maintaining them level, said means comprising a plurality of members, one end of each of which is secured to one of said beams, and the opposite end of each of which loosely engages one of said beams.

5. In a brake mechanism, a plurality of brake beams, means for supporting said beams, and means for maintaining said beams level, the last mentioned means comprising a plurality of members extending between said beams, each ofsaid members loosely engaging one of said beams.

6. In abrake mechanism, a pair of brake beams, means for supporting said beams, and a plurality of members for maintaining said beams level, each of said members being secured to one of said beams and loosely engaging the other of said beams.

7. In a brake mechanism, a pair of supported brake beams, each of said beams comprising a tension member and a compression member, and means for maintaining said beams level, said means comprising a mem- 'ber secured to the compression member'of one of said beams and adaptedto engage 20 Witnesses:

KATHLEEN KLEBER, COLMAN F. ZAITZ.

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