Abstract: A brake piston is described. The brake piston is configured for use in a disk brake system, the piston comprising: a body having an outside width perpendicular to a central axis; a footing disposed at a distal end of the piston; wherein the footing is configured to exert force on a brake pad during actuation of the disk brake system; the footing having a face configured to contact the brake pad, the face having a length and a width, wherein the length is longer than the outside width of the body, and the length is greater than the width.

Abstract: The present invention relates to a disk brake in which a connection is configured between a brake lining retainer and a pressure plate of a push rod in order to move the push rod by means of the brake lining retainer so that it slides axially in a brake caliper

Abstract: A backing plate for a railroad brake shoe includes side edges, ends, and an integral lug section located remote from the ends. The backing plate has a generally convex top surface, a generally concave bottom surface, and a longitudinal axis. Located transverse to the longitudinal axis, the lug section has an arcuate shape with an apex and legs and has a plurality of reinforcing members which are integrally formed as part thereof. The apex of the lug section forms a key or lug slot for insertion of a key which secures the backing plate to a brake head. The reinforcing members can take the form of at least one reinforcing rib which is laterally spaced from the lug slot and extends generally parallel to the longitudinal axis of the backing plate. The reinforcing member may also be comprised of an offset portion. Bores may be located on the periphery of the backing plate to impart additional strength thereto.

Abstract: A brake shoe mounting system for railway vehicles includes a composition type brake shoe having a recessed center portion and two bracket-style backing plates integrally molded into the composition type brake shoe. There is one bracket style backing plate per each half of the brake shoe. Each bracket style backing plate further includes at least two projections extending outwardly from the convex surface of the composition brake shoe. The two projections extending outwardly are closely adjacent a first end of the brake shoe and at least one projection extends outwardly from the convex surface of the brake shoe closely adjacent the recessed center portion of the composition type brake shoe. The mounting system further includes a brakehead having a concave surface with a central projection for engaging the recessed center portion of the convex surface of the brake shoe.

Abstract: A brake shoe for a railway vehicle having a three-piece backing plate formed of a longitudinal main plate portion having a front surface to which a friction material is attached, and an end-plate portion attached to each end of the longitudinal main plate portion. Each of the end plate portions having, a pair of wall members extending generally perpendicularly therefrom adapted to engage not only the edge surface of a the main plate portion but also the edge surfaces of the brakehead to which the three-piece backing plate is attached.

Abstract: In order to realize a two-piston floating caliper disc brake with a wide caliper, the axially outer side of the caliper is supported by radially extending protrusions shaped on the outer brake shoe. While the two protrusions have the same depth, they differ in their width. Corresponding circular grooves within the caliper around recess openings on the opposite side of the brake cylinders, however, are identical. Therefore, a radial support of the brake caliper can be carried out by both protrusions while a tangential positioning of the caliper is limited to the wider one of the two protrusions.

Abstract: A bonded composition type railroad brake shoe is disclosed in which the keybridge cavity of the brake shoe backing plate is filled with composition brake lining material for reinforcement and dampening of the keybridge. An insert located in the keybridge cavity comprises a pair of spaced-apart ribs that are upturned from a base plate such that the insert partitions the keybridge cavity. The insert is bonded in place by the composition brake lining material, which is formed with a keyway by the insert. The insert further serves to reinforce the keybridge in conjunction with the composition brake lining material therein.

Abstract: A drum brake shoe is provided with a plurality of reinforcements which are arranged at irregular intervals on the inner periphery of a rim.

Abstract: Brake equipment comprising a brake shoe arrangement including a brake pad and a curved vane wherein the brake shoe arrangement is constrained by the curved vane to rotate about its center of mass only. The brake equipment mitigates problems associated with uneven wear of the brake pad resulting from operational vibration and possible consequent movement of the brake shoe arrangement because of imbalance thereof.