Patent ID: 8281721

Claim:
A device for unloading and placing rails from a rail carrier train on an existing main track onto crossties of a track parallel to the existing track, comprising: a plurality of auxiliary wagons at a rear of a rail carrier train having a series of metal structures fixed to said auxiliary wagons, having fixed guiding points longitudinally distributed along the auxiliary wagons, each of the metal structures comprising: a beam which is transverse to the a forward movement and unloading direction of the rail carrier train, and a pair of windows mounted to each beam, spaced apart a distance, each window comprising a pair of rollers internal to the windows, for guiding the rails transversely; the windows on each of the series of metal structures being located on the beam as follows: the windows of a first beam being transversely of centered on an axis of a first auxiliary wagon and in a vertical direction above the first auxiliary wagon, the windows on a plurality of following beams being placed at transverse distances from the axis towards the parallel track, the transverse distance being gradually greater on each beam; and at least one of the windows on each of a further plurality of beams being located outside the wagon, the beam forming a cantilever, located perpendicularly to the axis of the wagon and to the forward movement of the rail carrier, a first end of each of the further plurality of beams being fixed at one end to a side of the wagon and at the opposite end being supported on the ground by means of a support having at least one wheel located outside the parallel track said supports being located in increasingly lower planes towards the rear of the train, the supports being adjustable in height to compensate for a height difference between the main track, over which the rail carrier train runs, and the parallel track; the windows on at least the beam closest to the rear of the train being located such that the rails passing through the windows are spaced apart to their final running gauge; such that each of the rails passing through the windows is guided transversely and vertically in a smooth transition from its transport position on the rail carrier train to a position on crossties on the subgrade of the parallel track.