Box car

A box car for storing bulk material and useful for incorporation in a freight train preceding a ballast cleaning machine for transporting waste material coming from the machine, the box car comprising a frame defining a plane, a box open on top and at the bottom, the box being mounted on the frame for storing the bulk material and having fixed input and output ends for respectively charging the bulk material into the box and discharging the bulk material from the box, a conveyor band arrangement forming a bottom wall of the box immediately below the open bottom and extending in the direction of elongation of the box car, the conveyor band arrangement having a width substantially equal to that of the lower box portion and comprising a first portion adjacent the input end and extending in the plane, the first portion being arranged to receive the bulk material charged into the box at the fixed input end, and an ascending portion extending in said direction from the first portion of the conveyor band arrangement and projecting beyond the output end, a drive means for the conveyor band arrangement, a bulkhead partition extending in the box transversely to said direction, the bulkhead partition being arranged above the first portion of the conveyor band arrangement, and means for displaceably moving said bulkhead partition in said direction for dividing the box into compartments, the bulkhead partition having a lower end fixedly spaced from the first conveyor band arrangement portion to define a port therewith.