Abstract: A railroad dump car, such as a side dump rail car, uses hydraulic actuators to tilt the dump body to permit unloading of the contents of the dump body. A hydraulic booster pump is connected to the auxiliary air supply of the train. The booster pump converts the relatively low pressure (about 90 psi) air to a high hydraulic pressure (about 3000 psi). In another embodiment, a bidirectional rotary pump driven from the rail car axle pumps the hydraulic fluid. The booster pump (or the bidirectional rotary pump) pumps hydraulic fluid from a hydraulic reservoir to a hydraulic accumulator, which receives the hydraulic fluid and stores the hydraulic fluid under pressure. When the hydraulic accumulator is fully charged, the operator triggers a valve to cause dumping. The valve causes the hydraulic accumulator means to supply the pressurized hydraulic fluid to the hydraulic actuators, which pivot the dump body with respect to the car frame to unload the contents of the dump body.

Abstract: A side dump rail car tilted by means of hydraulic cylinders at each end of the car which are centrally located. The edge of the car is retained by an engagement lug slid into place hydraulically to determine direction of tilt.

Abstract: A single-spot quench car is disclosed which has an articulating bottom and back wall arrangement. The articulation of the bottom and back walls serve to increase the volume of the car and to facilitate dumping of coke from the car after quenching.

Abstract: A coke quenching car is disclosed wherein the hopper is pivotally mounted to a superstructure continuation of the car frame, at points on both ends of the hopper adjacent to its top side which faces the coke side of a coke oven. A means for pivoting the top of the hopper upwards and towards the coke side of the coke oven is included. A discharge gate is attached to the bottom side of the hopper running the length of the hopper and hinged to the lower edge of the hopper side which faces the coke side of the coke oven. As the car is spotted at the coke wharf, the means for lifting pivots the hopper upward, aligning the discharge gate with the coke wharf; the gate is then swung downward to form a chute to the coke wharf. The contents of the hopper descend the inclined plane thus emptying the coke quench car.