Patent ID: 7891471

Claim:
A brake system in a railway vehicle truck comprising: A. Two brake beams supported within primary supports that position and forcefully apply brake shoes at a controlled angular orientation relative to each of four wheels in order to cause a brake application; B. applied brake force elements including two levers, a connector, a plurality of pins and a top actuating bar to work in conjunction with said brake beams to convey braking forces to said brake shoes; C. two stabilizing members pivotably appended between said applied brake force elements to effect an application of said brake shoes at a controlled angular orientation relative to wheel treads whereby said brake shoes will be aligned evenly with said wheel treads; said brake beams are supported by end guides within wear liners, and react braking torque by means of said end guides acting against said wear liners, said stabilizing members pivotably connected between a strut of said brake beam and a connector, in combination with a lever to form a four bar linkage, whereby such linkage will orient said end guides within said wear liners to reduce friction and wear.