RAIL PAD Russian patent published in 2013 - IPC E01B9/68 

FIELD: construction.

SUBSTANCE: rail is installed along the line (CLI). The pad (1) at the top and/or at the bottom has identical lugs (5), which are unevenly distributed so that the ratio of the surface area occupied with lugs (5) to the area of the surface without lugs (5) in the edge area (6a, 6b) is higher than in the central area (7). Lugs (5) are arranged in columns (a1-a7) so that the number of the lugs (5) in the column, which is most closely located to the edge area (6a, 6b), is more than in the column located closer to the centre. The lugs (5) are also arranged in rows (b1-b9), and the ratio of ledges to the free area in the row of lugs (5), located near the centre of the section (2) of the rail pad, but at a certain distance from it, will be higher than in a row located further from the centre.

EFFECT: reduced pad wear.

5 cl, 6 dwg