hopper-bottom car

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• Hopper — may refer to:Mechanical parts* A general term for a chute with additional width and depth to provide a volume for temporary storage of material(s). The bottom of the hopper chute typically has a mechanism to control the flow of materials, thus… …   Wikipedia

• hopper — [häp′ər] n. [ME hoppere] 1. a person or thing that hops 2. any hopping insect, esp. a grasshopper 3. [so called from making material “hop”] a box, tank, rail car, etc., often funnel shaped, from which the contents can be emptied slowly and evenly …   English World dictionary

• hopper car — noun : a freight car with a floor sloping to one or more hinged doors or hoppers for discharging bulk contents (as coal, ore, sand) by gravity and with a permanent roof and roof hatches when used for carrying bulk commodities (as cement) which… …   Useful english dictionary

• hopper — /hop euhr/, n. 1. a person or thing that hops. 2. Informal. a person who travels or moves frequently from one place or situation to another (usually used in combination): a two week tour designed for energetic city hoppers. 3. any of various… …   Universalium

• hopper car — Railroads. a freight car, usually open at the top and containing one or more hoppers so that bulk cargo can be quickly discharged through its bottom. [1860 65, Amer.] * * * …   Universalium

• Rotary car dumper — A rotary car dumper or wagon tippler (UK) is a mechanism used for unloading certain railroad cars such as hopper cars, gondolas or lorries (tipplers, UK). It holds the car to a section of track and rotates the track and car together to dump out… …   Wikipedia

• Covered hopper — car originally built in the 1950s for the Atlantic Coast Line Railroad. After the 1967 SCL merger these cars were fitted with rotary couplers and used in Bone Valley phosphate service. A Covered Hopper is a railroad freight car. They are designed …   Wikipedia

• Well car — A double stack car owned by the TTX Company. The 53 ft (16.15 m) capacity car is a Gunderson Maxi IV. The containers are owned by Pacer Stacktrain. A well car, also known as a double stack car or stack car, is a type of railroad car… …   Wikipedia

• Tank car — Modern tank cars carry all types of liquid and gaseous commodites. A tank car (UIC: tank wagon) is a type of railroad (UIC: railway) rolling stock designed to transport liquid and gaseous commodities. Contents …   Wikipedia

• Railroad car — A railroad car or railway carriage is a vehicle on a rail transport system (railroad or railway) that is used for the carrying of cargo or passengers. Cars can be coupled together into a train and hauled by one or more locomotive. Passenger cars… …   Wikipedia

• freight car — any car for carrying freight. [1825 35] * * * also called  Goods Waggon,         railroad car designed to carry cargo. Early freight cars were made largely of wood. All steel cars were introduced by about 1896 and within 30 years had almost… …   Universalium