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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. Used with gondola cars, it is making open hopper cars obsolete.
Cart from 16th century, found in Transylvania A dumper minecart used in the Basque Country, currently at the Minery Museum.. A minecart, mine cart, or mine car (or more rarely mine trolley or mine hutch) is a type of rolling stock found on a mine railway, used for transporting ore and materials procured in the process of traditional mining.
A solution to the problem was developed around the 1860s with the drop-bottom gondola: hatches were installed in the floor which could be opened at the destination, and workers using shovels directed cargo towards the hatches. Although it was an improvement over earlier gondolas, it still required manual unloading. [2]
A hopper car (NAm) or hopper wagon (UIC) is a type of railroad freight car that has opening doors or gates on the underside or on the sides to discharge its cargo. They are used to transport loose solid bulk commodities such as coal , ore , grain , and track ballast .
The system was originally fitted to some members of Class 20, Class 26 and Class 47. Later, some members of Class 37 were also fitted, while the system was fitted to all members of classes 56, 58, 59, 60 and 66. Additionally, all Class 50s were originally fitted, although the system was later removed due to non-use.
A new open hopper wagon design was introduced from 1915, with a steel underframe. These were called the "standard" fleet, and were fitted with pin-latched drop doors. O211-O260 were built in 1915-1916, followed by O261-O335 in 1919-1920, to accelerate delivery of coal from the Wonthaggi state mine, opened in 1909.
Vacuum-braked 21 ton coal wagon being loaded from a hopper at Blaenant Colliery, bound for Aberthaw Power Station, c.October 1965. The basic wagon had numerous variants. On creation of British Railways (BR) in 1948 - which took control of all railway assets, including all private owner wagons - the new organisation inherited 55,000 original MoT wagons, they were all given a "B" prefix in their ...
The WABCO 3200 was a rare example of a tri-axle haul truck configuration A medium sized haul truck, the 214-short-ton (194 t; 191-long-ton) Caterpillar 789 [1]. Most haul trucks have a two-axle design, but two well-known models from the 1970s, the 350T Terex Titan and 235T WABCO 3200/B, had three axles.