Railway Vehicle Brake Shoe
First Claim
Patent Images
1. A railway brake shoe comprising:
- (a) a first layer constructed of a composite friction material; and
(b) a second layer constructed of a resilient composition material, said second layer attached to a surface of said first layer, said second layer adapted to receive at least one fastener therein.
2 Assignments
0 Petitions
Accused Products
Abstract
A railway brake shoe including a first layer constructed of a composition friction material and a second layer constructed of a resilient composition material. The second layer is joined to the first layer. The second layer is adapted to receive at least one mechanical fastener therein to removably secure the brake shoe to a brake head. The resilient material of the second layer is capable of applying a circumferentially compressive force to the at least one mechanical fastener and prevent breakage of the composition friction material at the attachment location and/or enlargement of the attachment apertures due to vibration and lateral impacts.
28 Citations
20 Claims
-
1. A railway brake shoe comprising:
-
(a) a first layer constructed of a composite friction material; and
(b) a second layer constructed of a resilient composition material, said second layer attached to a surface of said first layer, said second layer adapted to receive at least one fastener therein. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A brake shoe for attachment to a brake head for use with a railway vehicle, said brake shoe comprising:
-
(a) a first layer constructed of a composite friction material, said first layer having a first surface and a second surface, said first surface capable of contacting such wheel during a braking operation;
(b) a second layer constructed of a resilient composition material, said second layer having a first surface and a second surface, said first surface attached to said second surface of said first layer; and
(c) at least one aperture extending into said second layer, said at least one aperture adapted to receive at least one mechanical fastener therein for removable securement of said second surface of said second layer to such brake head. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of securing a brake shoe to a brake head for use with a railway vehicle, said method comprising the steps of:
-
(a) providing a brake shoe comprising;
(i) a first layer constructed of a composite friction material; and
(ii) a second layer constructed of a resilient composition material attached to a surface of said first layer;
(b) providing a first aperture extending through said second layer;
(c) providing a second aperture in alignment with said first aperture, said second aperture extending a predetermined distance into said first layer of said brake shoe; and
(d) attaching said brake shoe to a brake head by means of a mechanical fastener extending into said first and second apertures. - View Dependent Claims (17, 18, 19, 20)
-
Specification