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Diagram of a Fairlie locomotive. A Fairlie locomotive is a type of articulated steam locomotive that has the driving wheels on bogies. It was invented by Robert Francis Fairlie. The locomotive may be double-ended (a double Fairlie) or single ended (a single Fairlie). Most double-ended Fairlies had wheel arrangements of 0-4-4-0 T or 0-6-6-0 T.
Mantua HO scale model of 2-6-6-2 steam locomotive, lettered for Great Northern Railway. The 2-6-6-2 wheel arrangement was fairly popular among model railroaders during the period when brass models were being imported in large quantities from Japan and Korea. Among the leading examples in HO scale were the following. [71]
The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same as, or are not present, on some locomotives – for example, on smaller or articulated types. Conversely, some locomotives have components not listed here.
A Corliss steam engine (or Corliss engine) is a steam engine, fitted with rotary valves and with variable valve timing patented in 1849, invented by and named after the US engineer George Henry Corliss of Providence, Rhode Island. Corliss assumed the original invention from Frederick Ellsworth Sickels (1819- 1895), who held the patent (1829) in ...
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In the usual arrangement for a compound engine the steam is first expanded in one or two high-pressure (HP) cylinders, then having given up some heat and lost some pressure, it exhausts into a larger-volume low-pressure (LP) cylinder, (or two, - or more), thus extending the expansion part of the thermodynamic cycle.
The Fairlie, with two powered trucks under a double boiler, or its Single Fairlie single-boiler derivative with one powered and one unpowered truck (known as a Mason Bogie in the United States). The Garratt locomotive, with an engine unit at each end carrying coal and water supplies, and a boiler unit articulated between them.
A portable engine is a type of self-contained steam engine and boiler combination that may be moved from site to site. Although bearing a strong family resemblance, in both appearance and (stationary) operation, the portable engine is not classed as a traction engine as it is not self-propelled.