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Multiplex Locomotive
A multiplex locomotive is a steam locomotive that divides the driving force on its wheels by using multiple pairs of cylinders to drive multiple driving wheel set groups. Such a locomotive will necessarily articulated if it has more than two sets of driving wheels. There were locomotive projects with three, four, five or six sets of drive wheels. However, these locomotives were never built, except for four triplex locomotives in the United States and one quadruplex locomotive in Belgium. The names of the subgroups of multiplex locomotives is derived from the number of drive wheel sets and is composed of the numeral prefix and the word ''locomotive''. However, ''locomotive'' is often omitted if it can be inferred from the context. Duplex locomotives The terms '' duplex locomotive'' and ''Divided drive locomotive'' are used to describe locomotives with two drive wheel sets mounted in a rigid frame. The concept of the duplex locomotive originated in the early development ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam is admitted alternately to each end of its cylinders, in which pistons are mechanically connected to the locomotive's main wheels. Fuel and water supplies are usually carried with the locomotive, either on the locomotive itself or in a tender coupled to it. Variations in this general design include electrically-powered boilers, turbines in place of pistons, and using steam generated externally. Steam locomotives were first developed in the United Kingdom during the early 19th century and used for railway transport until the middle of the 20th century. Richard Trevithick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garratt
A Garratt (often referred to as a Beyer Garratt) is a type of steam locomotive invented by British engineer Herbert William Garratt that is articulated into three parts. Its boiler, firebox, and cab are mounted on a centre frame or "bridge". The two other parts, one at each end, have a pivot to support the central frame; they consist of a steam engine unit – with driving wheels, trailing wheels, valve gear, and cylinders, and above it, fuel and/or water storage. Articulation permits locomotives to negotiate curves that might restrict large rigid-framed locomotives. The design also provides more driving wheels per unit of locomotive weight, permitting operation on lightly engineered track. Garratt locomotives produced as much as twice the power output of the largest conventional locomotives of railways that introduced them, reducing the need for multiple locomotives and crews. Advantages of the Garratt concept The principal benefit of the Garratt design is that the boil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-8-8-0
In the Whyte notation for the classification of steam locomotives by wheel arrangement, a 2-8-8-0 is a locomotive with a two-wheel leading truck, two sets of eight driving wheels, and no trailing truck. These were nicknamed "Bull Mooses". Equivalent classifications Other equivalent classifications are: *UIC classification: 1DD (also known as German classification and Italian classification) *French classification: 140+040 *Turkish classification: 45+44 *Swiss classification: 4/5+4/4 The UIC classification is refined to (1'D)D for Mallet locomotives. Examples The Great Northern Railway used the 2-8-8-0s as their N-1's which were built by Baldwin in 1912. They were rebuilt by GN in 1932 as a N-2, and later re-rebuilt in 1940 as an N-3, The locomotives, after their third rebuild into a N-3, had a larger boiler and bigger tender. The N-3's served on the GN for a collective 45 years (including previous service lives as N-1 and N-2 classes), in use until retired in 1957. The Union Pac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crown Publishing Group
The Crown Publishing Group is a subsidiary of Penguin Random House that publishes across several fiction and non-fiction categories. Originally founded in 1933 as a remaindered books wholesaler called Outlet Book Company, the firm expanded into publishing original content in 1936 under the Crown name, and was acquired by Random House in 1988. Under Random House's ownership, the Crown Publishing Group was operated as an independent division until 2018, when it was merged with the rest of Random House's adult programs. Crown authors include Jean Auel, Max Brooks, George W. Bush, Eitan Bernath, Deepak Chopra, Ann Coulter, Andrew Cuomo, Giada De Laurentiis, Will Ferrell (as fictional character Ron Burgundy), Gillian Flynn, Jim Gaffigan, Ina Garten, Mindy Kaling, Rachel Maddow, Jillian Michaels, Barack Obama, Michelle Obama, Theresa Rebeck, Mark Brennan Rosenberg, Judith Rossner, Rebecca Skloot, Suzanne Somers, Martha Stewart, Jonah Goldberg, Michael Jackson and many others. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boiler
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation. Heat sources In a fossil fuel power plant using a steam cycle for power generation, the primary heat source will be combustion of coal, oil, or natural gas. In some cases byproduct fuel such as the carbon monoxide rich offgasses of a coke battery can be burned to heat a boiler; biofuels such as bagasse, where economically available, can also be used. In a nuclear power plant, boilers called steam generators are heated by the heat produced by nuclear fission. Where a large volume of hot gas is available from some process, a heat recovery steam generator or recovery boiler can use the heat to produce steam, with little or no extra fuel consumed; such a configuration is common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Coupling
A coupling (or a coupler) is a mechanism typically placed at each end of a railway vehicle that connects them together to form a train. A variety of coupler types have been developed over the course of railway history. Key issues in their design include strength, reliability, ease of making connections and operator safety. The equipment that connects the couplings to the vehicles is the draft gear or draw gear and these must absorb the stresses of coupling and train acceleration. Nomenclature Compatible and similar couplings or couplers are frequently referred to using widely differing make, brand, or regional names, or nicknames, which can make describing standard or typical designs confusing. Dimensions and ratings noted in these articles are usually of nominal or typical components and systems, though standards and practices also vary widely with railway, region, and era. Buffers and chain The basic type of coupling on railways following the British tradition is the bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractive Effort
As used in mechanical engineering, the term tractive force can either refer to the total traction a vehicle exerts on a surface, or the amount of the total traction that is parallel to the direction of motion. In railway engineering, the term tractive effort is often used synonymously with tractive force to describe the pulling or pushing capability of a locomotive. In automotive engineering, the terms are distinctive: tractive effort is generally higher than tractive force by the amount of rolling resistance present, and both terms are higher than the amount of drawbar pull by the total resistance present (including air resistance and grade). The published tractive force value for any vehicle may be theoretical—that is, calculated from known or implied mechanical properties—or obtained via testing under controlled conditions. The discussion herein covers the term's usage in mechanical applications in which the final stage of the power transmission system is one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driving Wheels
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled together with side rods (also known as coupling rods); normally one pair is directly driven by the main rod (or connecting rod) which is connected to the end of the piston rod; power is transmitted to the others through the side rods. On diesel and electric locomotives, the driving wheels may be directly driven by the traction motors. Coupling rods are not usually used, and it is quite common for each axle to have its own motor. Jackshaft drive and coupling rods were used in the past (e.g. in the Swiss Crocodile locomotive) but their use is now confined to shunting locomotives. On an articulated locomotive or a duplex locomotive, driving wheels are grouped into sets which are linked together within the set. Diameter Driving wheels are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginian Railway
The Virginian Railway was a Class I railroad located in Virginia and West Virginia in the United States. The VGN was created to transport high quality "smokeless" bituminous coal from southern West Virginia to port at Hampton Roads. History Early in the 20th century, William N. Page, William Nelson Page, a civil engineer and coal mining manager, joined forces with a Partnership, silent partner, industrialist financier Henry H. Rogers, Henry Huttleston Rogers (a principal of Standard Oil and one of the wealthiest men in the world), to develop the Deepwater Railway, a modest 85-mile long short line railroad to access untapped bituminous coal reserves in some of the most rugged sections of southern West Virginia. When Page was blocked by collusion of the bigger railroads, who refused to grant reasonable rates to interchange the coal traffic, he did not quit. As he continued building the original project, to provide their own link, using Rogers' resources and attorneys they quiet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-8-8-8-4
Under the Whyte notation for the classification of steam locomotives, a 2-8-8-8-4 has two leading wheels, three sets of eight driving wheels, and four trailing wheels. Other equivalent classifications are: UIC classification: 1DDD2 (also known as German classification and Italian classification) French classification: 140+040+042 Turkish classification: 45+44+46 Swiss classification: 4/5+4/4+4/6 The equivalent UIC classification is to be refined to (1'D)D(D2') for these engines. Only one 2-8-8-8-4 was ever built, a Mallet-type for the Virginian Railway in 1916. Built by Baldwin Locomotive Works, it became the only example of their class XA, so named due to the experimental nature of the locomotive. Like the same railroad's large articulated electrics and the Erie Railroad 2-8-8-8-2s, it was nicknamed "Triplex". An overview of Triplex engineering is given at Triplex (locomotive). The XA was unable to sustain a speed greater than five miles an hour, since the six cylinders could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erie Railroad
The Erie Railroad was a railroad that operated in the northeastern United States, originally connecting New York City — more specifically Jersey City, New Jersey, where Erie's Pavonia Terminal, long demolished, used to stand — with Lake Erie, at Dunkirk, New York. It expanded west to Chicago with its 1865 merger with the former Atlantic and Great Western Railroad, also known as the New York, Pennsylvania and Ohio Railroad (NYPANO RR). Its mainline route proved influential in the development and economic growth of the Southern Tier of New York State, including cities such as Binghamton, Elmira, and Hornell. The Erie Railroad repair shops were located in Hornell and was Hornell's largest employer. Hornell was also where Erie's mainline split into two routes, one northwest to Buffalo and the other west to Chicago. On October 17, 1960, the Erie merged with former rival Delaware, Lackawanna & Western Railroad to form the Erie Lackawanna Railroad. The Hornell repair shops were c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-8-8-8-2
A Triplex locomotive is a steam locomotive that Divided drive (locomotive), divides the driving force on its wheels by using three pairs of cylinders rigidly mounted to a single locomotive frame. Inevitably any such locomotive will be articulated locomotive, articulated. All the examples that have been produced have been of the Mallet locomotive, Mallet type but with one extra set of driving wheels under the tender. Triplex classes Baldwin Locomotive Works, Baldwin Locomotive Works built three Triplex locomotives for the Erie Railroad between 1914 and 1916. The first was named ''Matt H. Shay'', after a beloved employee of that road. These Triplexes were given the classification of "P1" and they could reportedly pull 650 freight cars. The Triplexes were primarily used as pushers on grades requiring helper locomotives. Slow moving, the Triplexes were not considered highly successful, and no more were built for Erie. The Erie Railroad scrapped their Triplexes from 1929, 1931, and 193 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
