Truck car braking system
AssigneeTriax Tube Co.
InventorRobert G. Jackson
Life of this patent
Estimating the term…
Abstract
A slack adjuster adapted for use in railroad truck car braking mechanisms. The slack adjuster compensates for wear of the truck car brake shoes by automatically adjusting the length of travel of the brake cylinder piston rod as the shoes wear. The slack adjuster of this invention includes a linkage connected between the air cylinder piston rod and one end of the slack adjuster. The invention also includes a bolster mounted linkage stabilizer which interconnects the other end of the slack adjuster, the brake lever, and the piston rod to eliminate oscillation of the piston rod during operation.
Claims6
In a braking system for railroad truck cars, said braking system including opposing brake beams positioned adjacent to wheels of a truck car, each brake beam carrying brake shoes for contacting said wheels as the beams are shifted into a braked position, means connected to said beams for shifting the beams between a standby position and said braked position, said means for shifting including a fluid powered cylinder having an extensible rod connected to one of said beams and a slack adjuster having an extensible rod connected to another of said beams, and lever means connected between said cylinder rod and one end of said slack adjuster for effecting correlative movement of the beams, the improvement comprising stabilizer means for absorbing vibrational forces during shifting of the brake beams into said braked position, and means for connecting said stabilizer means between one end of said cylinder rod and said one brake beam.
In combination, a railroad truck car and a braking system, said truck car including a frame, wheels mounted to said frame for rotational movement relative thereto, said braking system comprising first and second brake beams having brake shoes positioned adjacent to said wheels, means for shifting each brake beam between a standby position spaced from said wheels and a braked position wherein said brake shoes contact said wheels, said means for shifting including a power actuated cylinder having an extensible rod connected at a first end thereof to said first brake beam, and a slack adjuster having a first end connected to said first brake beam and an extensible rod connected to said second brake beam, a lever arm pivotally connected between said cylinder rod first end and said slack adjuster first end, and a stabilizer means for limiting vibrational forces on said cylinder rod as the beams are shifted into their braked position, and means for connecting said stabilizer bar means between said cylinder rod one end and said first brake beam.
Dependencies are inferred from the claim text.