Railway hopper car for unloading ladings which do not readily fl

Cutlery

Patent

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Details

105248, 222136, B65G 5312

Patent

active

041011759

ABSTRACT:
A hopper is provided having a discharge outlet including a lading control valve for metering the lading into a discharge tube extending below the hopper. The discharge tube at one of its ends is adapted to receive a lading transfer conduit to convey the lading to a container. A first conduit is provided to apply air pressure from an air supply source adjacent the hopper to the upper portion of the hopper in the car. A second conduit is provided to apply air pressure from the source into a first end portion of the discharge tube. A third conduit is connected to the source and to the second conduit to apply air pressure to the opposite end portion of the discharge tube. A first air control valve is provided to control the air pressure applied to the upper portion of the hopper. A second air control valve is provided for controlling air pressure applied to the end portion of the discharge tube to be used for unloading. A third air control valve is provided to control the air pressure applied to the opposite end portion of the discharge tube. For railway hopper car applications in which the transverse and/or vertical dimensions of the hopper are close to AAR transverse clearance limits, the air pressure may be applied internally to the upper portion of the hopper through a standpipe which is provided in at least one hopper compartment in the car. If more than one hopper compartment is provided, opening may be provided in transverse bulkheads dividing the compartments so that the air pressure is applied to all hopper compartments to be unloaded.

REFERENCES:
patent: 2524919 (1950-10-01), Meincke
patent: 2761741 (1956-09-01), Shields
patent: 3288537 (1966-11-01), Hitch
patent: 3403943 (1968-10-01), Stine et al.

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