Importance

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Abstract

One displaces along the railway track at least one assembly of grinding units (13,14,15), angularly displaced the ones with respect to the others. One controls the pressure with which each grinding unit (13,14,15) is applied against the rail (12) in function of at least one parameter of a polygon (6) cirrcumscribing to a reference profile and the sides of which are parallel to the active surfaces of the corresponding grinding wheels (14) of the grinding units. The apparatus comprises grinding (13,14,15) angularly displacable on a carriage (11) guided along a rail (12). For each unit (13,14,15) it comprises at least one control circuit (19,20,21) defining, in function of a parameter of a polygon (6) circumscribing to a reference profile and the sides of which are parallel to the active surfaces of the grinding wheels (14) of the corresponding unit, the inclination of the unit and at least one control circuit (23,24,25) defining in function of at least one parameter of the polygon (6) the applying force with which the grinding wheel (14) is applied against the rail 12.

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First Claim