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Firebox of a GWR 6959 Class steam locomotive, showing the underside of the brick arch, constructed from specially-shaped firebricks. Empty firebox of a Baureihe 52, showing the brick arch. There is a large brick arch (made from fire brick) attached to the front wall (boiler throat plate) of the firebox immediately beneath the firetubes. This ...
Collects steam at the top of the boiler (well above the water level) so that it can be fed to the engine via the main steam pipe, or dry pipe, and the regulator/throttle valve. [2] [5] [6]: 211–212 [3]: 26 Air pump / Air compressor Westinghouse pump (US+) Powered by steam, it compresses air for operating the train air brake system.
Firebox (steam engine) H. Haycock boiler; P. Pistol boiler; R. Round-topped firebox; W. Wootten firebox This page was last edited on 3 February 2011, at 11:44 ...
The Belpaire firebox is a type of firebox used on steam locomotives. It was invented by Alfred Belpaire of Belgium in 1864. Today it generally refers to the shape of the outer shell of the firebox which is approximately flat at the top and square in cross-section, indicated by the longitudinal ridges on the top sides.
The Gothic arch firebox was also notably used by a number of Gooch's Great Western Railway broad-gauge locomotives, [4] [7] including the Firefly, Leo and Hercules classes of 1840-1842. The last class to use them was the Premier class of 1846–7, which were also the first locomotives to be constructed at the new Swindon Works . [ 8 ]
The typical locomotive firebox of the day was long and narrow, fitting in between the locomotive's frames. The successful design of a trailing truck with the firebox mounted behind the driving wheels (e.g. the Pacific or 4-6-2 class) not yet been developed. Wootten instead mounted his huge firebox above the locomotive's driving wheels. The ...
It was one of sixteen built to Diagram R, the last batch of steam rail motors. These were 70 feet (21 m) long and 9 feet (2.7 m) wide. After running 479,006 miles (770,885 km) it was withdrawn in November 1934, the power unit was removed and the carriage portion converted into an auto trailer.
The dimensions of the blastpipe and chimney are critical to the steam-generating capacity of the locomotive and its fuel economy, since there is a natural trade-off between a high-velocity steam jet giving a strong draw on the fire, and back-pressure on the exhaust. Small changes to this "front end" design can have a dramatic impact.