US 6,354,512 B2 · Polymer embedment of rails

Abstract

A method of making a polymer coated rail in which a rail to be coated (10) is positioned on a mould base (11) in an inverted manner, so that the head (12) of the rail is immediately adjacent the base plate (11). Then, mould side pieces (13, 14) are secured to the base plate (11) to run parallel to the side of the rail (10). Antislip material such as bauxite or granite chippings (21) are positioned in the mould so that they lie on the base plate (11), and then the liquid polymer is poured into the mould to fill the spaces (19, 20) and so encapsulate the rail (10). The polymer is poured into the mould, until its surface (22) covers the foot (23) of the rail. In this state, the polymer is allowed to cure, so that it solidifies, and once the side plates (13, 14) have been removed, the rail together with its polymer coating can be lifted from the base plate (11).

Claims5

Dependent claims

A method of laying a rail line comprising two rails, the method comprising:

providing an uncoated rail having a head and a foot;
placing the uncoated rail in an upside down position in a mold having a top and bottom such that the head of the rail is at the bottom of the mold;
pouring a polymer into the mold to coat the rail;
curing the polymer in the mold;
removing the coated rail from the mold after the polymer has cured;
laying two coated rails on a track bed;
and
providing a further layer of material to embed the coated rails.

5 more elements

Dependencies are inferred from the claim text.

Polymer embedment of rails

Life of this patent

Polymer embedment of rails

Life of this patent

Abstract

Claims5