Abstract: A box car for carrying bulk material and capable of being incorporated into a freight train of a plurality of successively arranged like box cars, the box car comprising a box having an open top and an endless horizontal conveyor at the bottom, one of the endless conveyor ends being a rear end in the conveying direction and another endless conveyor end being a front end in the conveying direction, and a bulk material transfer device for transferring the bulk material from a preceding to a succeeding box car, the preceding and succeeding box cars being coupled to each other, the bulk material transfer device comprising an inclined endless conveyor having a lower end and an upper end, a drive for moving the inclined endless conveyor, and an adjusting drive for adjusting the distance of the transfer device from the ends of the horizontal endless conveyor, and the inclined endless conveyor being so arranged that the lower end subtends the front end of the horizontal endless conveyor of the preceding box car, and

Abstract: A train of railroad cars for receiving, transporting and discharging bulk material comprises a succession of flat cars and a plurality of transport containers for the bulk material arranged on each of the car loading platforms in succession in the direction of the track. A mobile crane is mounted for movement along the train on rails laterally of the containers on the loading platforms. The crane grips respective containers and drives them selectively to and from loading and storage stations on respective ones of the flat cars whereby successive containers may be loaded with the bulk material and the loaded containers may be stored on the platforms of the cars.