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Rotary Railcar Dumper at 45-Degree Rotation. A rotary car dumper or wagon tippler (UK) is a mechanism used for unloading certain railroad cars such as hopper cars, gondolas or mine cars (tipplers, UK). It holds the rail car to a section of track and then rotates the track and car together to dump out the contents.
These loading hatches along the top of the covered hopper may be a single long opening along the centerline or a pattern of multiple round or square openings positioned to allow uniform weight distribution when loading the car. Some covered hoppers have two to four separate bays, with chutes at the bottom to direct unloading contents.
The covered roof was removed and replaced with a vertically extended box structure, hiding extended and steeper sloped sheets - like the VHLA, this was to assist in quick unloading, but in this case the extension was provided so the wagons could be loaded to the same total weight as previously.
The bottom unloading of course made unloading much easier. Now, back to cement. As this was becoming a large revenue source, pullman built a small steel hopper car with a roof. This car, the first PS-2 covered hopper, started the covered hopper family. The 1750 cu ft cement hopper car is the direct decendent of this first car.
By mid-century, under the leadership of Richard L. Duchossois, the company focused on building specialized freight cars, such as high-cube boxcars for auto parts, all-door boxcars for building products, gondolas, rotary-dump gondolas for coal, bulkhead flatcars and centerbeam flatcars for lumber, double-stack container cars, covered hoppers ...
A coupling or coupler is a mechanism, typically located at each end of a rail vehicle, that connects them together to form a train. The equipment that connects the couplers to the vehicles is the draft gear or draw gear , which must absorb the stresses of the coupling and the acceleration of the train.
Merry-go-round hoppers were worked hard however, and the typical livery included a coating of coal dust. Some of the terminals served used stationary shunters to move the wagons forward at low speed. These often featured tyred wheels that gripped the wagon sides, resulting in horizontal streaks on the hopper sides.
The Greenbrier Companies acquired the plant in 1995 but during a serious contraction within the railcar sector in the mid 2000s closed the plant. The Thunder Bay plant primarily built passenger rail and transit equipment, while the Trenton plant built freight cars. Covered Hopper Cars - for grain and other dry bulk commodities