Hopper coal wagon, c 1825. Model (scale 1:8). This shows the type of railway wagon commonly used in the early 19th century for carrying coal from the pits to the staithes (wharfs). It has a hopper-shaped body - holding one chaldron (50 cwt) of coal - mounted on a timber frame the side members of which act as buffers. The wagon is unloaded by dropping the coal through a hinged door forming the bottom of the body. A double- ended brake block, which is mounted on a central pivot and attached to a long lever, is fitted between the wheels on each side of the wagon.
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