5 Terms
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Railway
Relating to the infrastructure developed for the transport of trains.
Industry: Transportation
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Railway
grate
Transportation; Railway
The base of the firebox upon which the fire rests. It comprises a grill of firebars with gaps between them to allow air in to assist with the combustion process. See also Drop Grate and Rocking ...
grate area
Transportation; Railway
The statistic used to determine the fire capacity of a locomotive. Early locomotives had grate areas of about 6 sq. ft. The most recent UK designs approached 50 sq. ft and the largest US designs ...
hadfield steam reverser
Transportation; Railway
A popular and common type of steam assisted reverser seen occasionally in the UK but popular on the larger types of locomotives in Africa and India.
hammer blow
Transportation; Railway
The force exerted by the thrust of the connecting rod on the crank and transmitted to the rail with each revolution of the driving wheel. Rotating masses must be balanced but since this is only the ...
heating surface
Transportation; Railway
The total of the area of the firebox walls and boiler tubes providing heating contact with boiler water and therefore the most important indication of steam production capability.
heating valve
Transportation; Railway
A valve provided in the locomotive cab to allow steam to be supplied to the train heating pipe through a reducing valve. A pressure gauge was also provided.
heating, train
Transportation; Railway
Locomotive produced steam heating of passenger coaches, which first appeared in the US in 1881 and in the UK in 1884.
