COMPOSITE BUTT GASKET Russian patent published in 2010 - IPC E01B11/54 

FIELD: construction, road engineering.

SUBSTANCE: invention is related to superstructure of railway track, and more precisely, to arrangement of rail butt joints. Composite butt gasket consists of head, journal and foot, end and side surfaces. Gasket is made of electric insulating material, and a layer of elastic material is arranged on its end surface as partially protruding beyond contour of cross section of head, journal and foot of joined rails. Layer of elastic material of gasket end surface is produced from magnetic dielectric elastomer. Electric insulating material of gasket is represented by flaky glass-fibre plastic with ultimate compression strength of at least 300 MPa. End surface of gasket head contour on the side of lateral surface of rail rolling is arranged as inclined at the angle, which corresponds to critical side wear of rail head.

EFFECT: improved operational reliability of rail butt electric insulating joint.

1 dwg