Abstract: A system for breaking up caked materials in a hopper car having a gravity discharge outlet is shown. The system includes an agitator that is a compressible strut linked through a rod to an externally driven crank shaft and a crank arm disposed above the discharge outlet. The system further includes at least one energizing coil coupled with the strut that provides irresistible force to caked material in the vicinity of the strut to initiate crumbling when the crank shaft is rotated, and to progressively crumble caked material along the length of the coil. The system further may have scrubbing panels along slope sheets of the hopper coupled with the coil, and may have arch members coupled with the energizing coils to provide further progressive agitation of caked material in the hopper car.

Abstract: A system for breaking up caked materials in a hopper car having a gravity discharge outlet is shown. The system includes an agitator that is a compressible strut linked through a rod to an externally driven crank shaft and a crank arm disposed above the discharge outlet. The system further includes at least one energizing coil coupled with the strut that provides irresistible force to caked material in the vicinity of the strut to initiate crumbling when the crank shaft is rotated, and to progressively crumble caked material along the length of the coil. The system further may have scrubbing panels along slope sheets of the hopper coupled with the coil, and may have arch members coupled with the energizing coils to provide further progressive agitation of caked material in the hopper car.

Abstract: This application discloses a device for urging bulk material to flow from a hopper such as the hopper of a railway car. The device includes a rotating axle that can be rotated by a power wrench, and one or more rotating agitators having auger coils disposed near the bottom outlet of a hopper and which are rotatably connected to the axle. Rotating the axle causes the agitators to rotate, thereby breaking up and urging bulk material to flow downward through the bottom outlet. Also disclosed is a system for emptying a hopper such as the hopper of a railway car, wherein a device with rotatable agitators having auger coils is integrated with a sliding gate assembly situated at the bottom outlet of the hopper. A power wrench can be used both to open and close the gate assembly, and to rotate the agitators in the hopper so as to break up and urge bulk material downward and out of the hopper through the opened gate assembly.