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SJ A
The A class of the Swedish State Railways (SJ) was a type of steam locomotive built in 1906–1909 for hauling mainline express trains. The 26 locomotives were built to replace older types that could not cope with the increasingly heavy express trains, but soon became insufficient themselves. They were relegated to less important passenger trains, and five were transferred to then-independent Ostkustbanan (OKB) in the 1920s, but returned when that company was nationalized in 1933. OKB and SJ had a total of eight locomotives rebuilt, replacing the trailing wheels with an extra pair of driving wheels. The locomotives that had not been rebuilt were scrapped in the late 1930s, except for number 1001 which is preserved at the Swedish Railway Museum, but the rebuilt ones survived until the early 1970s. OKB also built two locomotives of a related design, but with a smaller driving wheel diameter. These were also taken over by SJ and were in regular use until 1961; one has been prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NOHAB
NOHAB (Nydqvist & Holm AB) was a manufacturing company based in the city of Trollhättan, Sweden. History The company was founded by Antenor Nydqvist, Johan Magnus Lidström and Carl Olof Holm in 1847 as ''Trollhättans Mekaniska Verkstad'' as a manufacturer of turbines for hydraulic power plants. In 1865, the company made its first steam locomotive and in 1912 the 1,000th locomotive steamed out of the factory. In Nohab's anniversary book "The Thousand Locomotive" from 1912, it's mentioned that the company also manufactured davits for Titanic's lifeboats. In 1916 the company was reconstituted as a limited company and became NOHAB. In 1920, NOHAB received an order of 1000 locomotives from Soviet Russia. Only 500 were delivered between 1921 and 1924. In 1924, Nohab built three steam locomotives, 4-6-0 ones for with the respective builder's plates #1727, #1728 and #1729 for Estrada de Ferro Rio d'Ouro in the state of Rio de Janeiro (Brazil). According to E.F. Rio d'Ouro's su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bogie
A bogie ( ) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly detachable (as the dolly in a road train or in railway bogie exchange); it may contain a suspension within it (as most rail and trucking bogies do), or be solid and in turn be suspended (as most bogies of tracked vehicles are); it may be mounted on a swivel, as traditionally on a railway carriage or locomotive, additionally jointed and sprung (as in the landing gear of an airliner), or held in place by other means (centreless bogies). In Scotland, the term is used for a child’s (usually home-made) wooden cart. While ''bogie'' is the preferred spelling and first-listed variant in various dictionaries, bogey and bogy are also used. Rai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Main Line
The Southern Main Line ( sv, Södra stambanan) is a long standard gauge electrified railway between Malmö and Katrineholm in Sweden. The trains continue further on to Stockholm Central Station along the Western Main Line and terminate there (at platforms 16–19). The line also connects to other lines, most notably in Malmö the Öresund line to Copenhagen, and in Lund to the West Coast Line towards Gothenburg. History The first parts of the line opened in 1856 between Malmö and Lund, and the last parts in 1874. An unusual route was chosen as the line passed far from many of the bigger towns at the time, such as Hörby and Kristianstad. This was an attempt to "colonize" the countryside and populate it. Another strategic choice was to put it far from the coast to minimize vulnerability to military attacks. A number of new towns sprung up or grew as the line brought access to the area, such as Eslöv and Hässleholm. Initially the route Katrineholm–Nässjö was called '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compound Locomotive
A compound locomotive is a steam locomotive which is powered by a compound engine, a type of steam engine where steam is expanded in two or more stages. The locomotive was only one application of compounding. Two and three stages were used in ships, for example. Compounding became popular for railway locomotives from the early 1880s and by the 1890s were becoming common. Large numbers were constructed, mostly two- and four-cylinder compounds, in France, Germany, Austria, Hungary, and the United States. It declined in popularity due to maintenance issues and because superheating provided similar efficiencies at lower cost. Nonetheless, compound Mallets were built by the Norfolk and Western Railway right up to 1952. Introduction 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 Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4-6-2
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle. The locomotive became almost globally known as a Pacific type. Overview The introduction of the design in 1901 has been described as "a veritable milestone in locomotive progress". On many railways worldwide, Pacific steam locomotives provided the motive power for express passenger trains throughout much of the early to mid-20th century, before either being superseded by larger types in the late 1940s and 1950s, or replaced by electric locomotive, electric or diesel locomotive, diesel-electric locomotives during the 1950s and 1960s. Nevertheless, new Pacific designs continued to be built until the mid-1950s. The type is generally considered to be an enlargement of the 4-4-2 (locomotive), Atlantic type, although its NZR Q class (1901), prototype had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SJ F (steam Locomotive)
The F class was a type of steam locomotive used by Swedish State Railways ( sv, Statens Järnvägar, SJ) and based on the Württemberg C. Eleven locos were built by Nydquist & Holm (NOHAB) between 1914 and 1916. It was primarily used on the main lines between Stockholm- Gothenburg and Stockholm-Malmö. It is one of the largest steam locomotives ever used in Sweden. The superheated compound locomotive could produce . Denmark During the 1930s the locomotives became obsolete due to electrification of the main lines, and in 1937 were sold to DSB of Denmark, where they served as DSB Class E DSB was so impressed with the performance of the E class that starting 1942, a further 25 locos were built by Frichs of Aarhus. The E class remained in service into the early 1970s. On the death of king Frederik IX the funeral train from Copenhagen to Roskilde on 14 January 1972 was double-headed by two class Es. Preservation Two of the Swedish-built locomotives are preserved and F 120 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4-6-0
A 4-6-0 steam locomotive, under the Whyte notation for the classification of steam locomotives by wheel arrangement, has four leading wheels on two axles in a leading bogie and six powered and coupled driving wheels on three axles with the absence of trailing wheels. In the mid-19th century, this wheel arrangement became the second-most-popular configuration for new steam locomotives in the United States, where this type is commonly referred to as a ten-wheeler.White, John H., Jr. (1968). ''A history of the American locomotive; its development: 1830-1880''. New York, NY: Dover Publications. p. 57. As locomotives pulling trains of lightweight all-wood passenger cars from the 1890 to the 1920s, they were exceptionally stable at near speeds on the New York Central's New York-to-Chicago Water Level Route and on the Reading Railroad's line from Camden to Atlantic City, New Jersey. Overview Tender locomotives During the second half of the nineteenth and first half of the twenti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotive Wheelslip
{{Unreferenced , date=September 2013 Locomotive wheelslip is an event that affects railway motive power usually when starting from stationary, but can also affect an engine in motion. Overview The greatest effort is required from a locomotive when starting. At this time, if the engineer applies too much power to the wheels (i.e., for a steam locomotive, the engineer opens the regulator too far) the turning force applied to the wheel will greatly exceed the opposing friction force affected by the surface of the rail, and the wheel will turn without being able to move the train forward. If the engineer does not take quick corrective action (i.e. by closing the regulator) the locomotive can end up stationary with its wheels spinning: this can damage both the locomotive drive mechanism, through running too fast, and the rail surface, which, in extreme cases, can be left with a dip where the spin took place. (Such a dip is dangerous if not repaired subsequently.) Some locomotive types ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergslagernas Järnvägar
Bergslagernas Järnvägar was the largest private railroad company of Sweden with a main line from Gothenburg to Falun, in all 478 km. Bergslagernas Järnvägar (BJ) was founded in the 1870s to form a transportation system from Bergslagen, the ore-rich areas in southern Sweden to the port in Gothenburg. It was nationalized and merged into Swedish State Railways The Swedish State Railways ( sv, Statens Järnvägar) or SJ, originally the Royal Railway Board ( sv, Kungl. Järnvägsstyrelsen), was the former government agency responsible for operating the state-owned railways in Sweden. It was created i ... in 1948. Defunct companies of Sweden Defunct railway companies of Sweden 1870s establishments in Sweden Railway companies disestablished in 1948 {{Sweden-transport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar Frame
A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. The vast majority of locomotives have had a frame structure of some kind. The frame may in turn be supported by axles directly attached to it, or it may be mounted on bogies ( UK) / trucks ( US), or a combination of the two. The bogies in turn will have frames of their own. Types of frame 250px, Preserved GWR 9017 showing outside frames Three main types of frame on steam locomotives may be distinguished:, p 255. Plate frames These used steel plates about thick. They were mainly used in Britain and continental Europe. On most locomotives, the frames would be situated within the driving wheels ("inside frames"), but some classes of an early steam locomotive and diesel shunters were constructed with "outside frames". Some early designs were double framed where the frame consisted of plates both in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelm Schmidt (engineer)
Wilhelm Schmidt, known as Hot Steam Schmidt (German: ''Heißdampf-Schmidt'') (1858–1924) was a German engineer and inventor who achieved the breakthrough in the development of superheated steam technology for steam engines. Wilhelm Schmidt was born in Wegeleben in the Prussian Province of Saxony on 18 February 1858. Education At school Wilhelm Schmidt had difficulties with reading, writing and arithmetic, a case of dyslexia. For example, he was unable to recite the alphabet without hesitation all his life. Nor could he memorise poetry or prose. He developed a passion for drawing, however, and for machines. Career Schmidt began his professional career as a machine fitter. He studied at the technical high school in Dresden under Gustav Zeuner. Superheated steam In 1883 he took a post as a civil engineer in Kassel, where he developed superheated steam technology to the point where it could be practically used. In 1908 he transferred his home and the base of his firm to Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superheater
A superheater is a device used to convert saturated steam or wet steam into superheated steam or dry steam. Superheated steam is used in steam turbines for electricity generation, steam engines, and in processes such as steam reforming. There are three types of superheaters: radiant, convection, and separately fired. A superheater can vary in size from a few tens of feet to several hundred feet (a few metres to some hundred metres). Types * A radiant superheater is placed directly in radiant zone of the combustion chamber near the water wall so as to absorb heat by radiation. * A convection superheater is located in the convective zone of the furnace usually ahead of economizer (in the path of the hot flue gases). These are also called primary superheaters. * A separately fired superheater is a superheater that is placed outside the main boiler, which has its own separate combustion system. This superheater design incorporates additional burners in the area of superheater pipes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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