Patent ID: 8573506
Filing Date: 2013-11-05
Classification: E01B,Y10T

Abstract:
1. An expansion device for a rail configured for guidance of a vehicle wheel on a track, the expansion device comprising: a plurality of components in the form of transverse strips to be installed on a portion of track in a spaced-apart relationship; said transverse strips having a cross-section defined by a foot, a head, and a web extending between said foot and said head, said web being narrower than said foot and said head, and said cross-section being substantially identical with a cross-section of the rail to which said strips are to be mounted; a plurality of compressible modules having a cross-section defined by a foot, a head, and a web extending between said foot and said head, said web being narrower than said foot and said head, and said compressible modules interspersed between said transverse strips for spacing said transverse strips in the spaced-apart relationship; and a plurality of shafts each extending through the transverse strips and the compressible modules.