Patent ID: 8490548

Claim:
A device ( 1 ) for the maintenance or the repair of rails and railroads apparatuses, said device notably comprising: a frame ( 2 ); and means ( 3 , 4 , 5 ) of displacement on a rail; the means of displacement comprising two wheels ( 4 , 5 ) aligned with an axis ( 6 ) of displacement of the device along a rail ( 7 ); wherein the frame ( 2 ) is arranged on the means ( 3 ) of displacement so that, when the wheels of said device are positioned on a rail ( 7 ), the center of gravity ( 22 ) of said device is placed vertically to said rail; and wherein each wheel is provided with two flanges ( 12 , 13 ) having a substantially annular shape characterized in that a position of at least one of the two flanges ( 13 ) is adjustable relative to an axis ( 15 ) of the wheel.