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The tire cools, and the retaining ring (a shaped steel bar rolled into a hoop, known as a Gibson ring, after its inventor J. Gibson of the British Great Western Railway [1] [2]) is fitted into the groove. Hydraulically operated rolls swage the groove down on to the retaining ring. The tire is primarily held in place by its interference fit. The ...
The T. D. Judah locomotive was built as a 4-2-4 by the Cooke Locomotive and Machine Works in 1863. It was purchased for use on the Central Pacific Railroad and was rebuilt as a 4-2-2 in 1872. By 1900, typical loads on express trains had grown beyond the capabilities of 4-2-2 locomotives and the configuration was superseded by the 4-4-2.
Eight 4-2-4 well- and back-tank locomotives which entered service on the Bristol and Exeter Railway in 1853 appear to have been the first with this wheel arrangement. The engine was designed by James Pearson , the railway company's engineer, and featured single large flangeless driving wheels between two supporting four-wheeled bogies .
The Milwaukee Road Class "A" was a class of high-speed, streamlined 4-4-2 "Atlantic" type steam locomotives built by the American Locomotive Company (ALCO) from 1935 to 1937 to haul the Milwaukee Road's Hiawatha express passenger trains. Numbered from No. 1 to No. 4, they were among the last Atlantic type locomotives built in the United States ...
While the wheel arrangement and type name Atlantic would come to fame in the fast passenger service competition between railroads in the United States by mid-1895, [1] the tank locomotive version of the 4-4-2 Atlantic type first made its appearance in the United Kingdom in 1880, when William Adams designed the 1 Class 4-4-2 T of the London, Tilbury and Southend Railway (LT&SR).
Front of engine to the left. 2-4-4 Mason Bogie locomotive #6 on the Boston, Revere Beach and Lynn Railroad as built in 1886. Lithuanian Tk. Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 2-4-4 is a steam locomotive with two unpowered leading wheels followed by four powered driving wheels and four ...
Columbia River Belt Line 7, also known as Skookum, is a preserved 2-4-4-2 Mallet-type steam locomotive built by the Baldwin Locomotive Works in 1909. It was used to pull logging trains in the Pacific Northwest, until 1955, when the locomotive fell on its side, and it was abandoned.
Swiss classification: 2/3+2/3 For a Mallet locomotive the UIC classification is refined to (1'B)B1' A similar wheel arrangement has been used for Garratt locomotives , but it is referred to as 2-4-0+0-4-2 since both engine units can pivot.