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Transportation

Any mode or method of locomotion that serves to move people, goods or services from one location to another.

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Transportation > Railway

anti-vacuum valve
Transportation; Railway

Also known as a 'snifting valve'. A valve provided on engines with piston valves to allow air into the steam passages while the locomotive is moving with the regulator closed. In ...

articulated locomotive
Transportation; Railway

A locomotive where two engines (sets of cylinders, valve gear and wheels) were provided under the same frame but pivoted to allow transition through curves in spite of the long ...

ashpan
Transportation; Railway

The light steel receptacle under the locomotive grate into which ash from the fire falls. It is usually fitted with dampers to adjust the airflow through the fire. Some ashpans ...

water trough
Transportation; Railway

A channel laid between the running rails and filled with water, which can be collected by passing locomotives fitted with a water scoop. Water troughs were first introduced in the ...

water tubes
Transportation; Railway

A system which tried to improve the circulation of water between the legs of the firebox by joining them with tubes running across the firebox. The best-known UK example was ...

weather board
Transportation; Railway

A vertical sheet added to the rear of the firebox and fitted with two glass portholes to provide some protection for the locomotive crew. They first began to appear in the 1850s.

wedge valve gear
Transportation; Railway

A type of valve gear designed by Isaac Dodds, dating from 1839 and used occasionally until 1872, which had two eccentrics on a two-cylinder locomotive instead of four. The single ...

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