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British Rail Class 204
The British Rail Class 204 designation has been used twice for two similar types of diesel-electric multiple units. History The original units, numbered in the range 1119-1122, were two-car versions of the Class 205 '3H' units, and were classified as 2H under the old system. In 1979, BR decided to augment the two-car units to three-car formation. Three of the four units were reformed with the addition of centre trailers taken from 3H (Class 205) units, and thus were themselves reclassified as Class 205. The fourth 2H unit, and the three former 3H units which had given up their trailers, were augmented by reusing the ex- 2EPB driving trailers from redundant Class 206 units. The Class 204 designation was re-applied to these four newly formed units (which were also given the classification 3T under the old system). They were renumbered into the range 1401-1404. In 1986, the units were renumbered to 204001-004 to conform with the TOPS numbering system. Technical details Power ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 205
The British Rail Class 205 ( 3H) diesel-electric multiple units were built by BR at Eastleigh from 1957 to 1962, and in service for 47 years from BR Southern Region to Connex South Central and finally to the Southern franchise. They were eventually replaced by Class 171 Turbostar units. Description This class of unit was built in four different batches for use on different lines. The Southern Region class 201 to 207 DEMUs are nicknamed 'Thumpers' owing to the noise they made while in motion. The first batch of units, numbered 1101–1118, was built in 1957 as two-car units and classified as 2H. They were built for services in Hampshire on the non-electrified routes between , and and between , and . The first units entered service in September 1957. However, owing to increasing passenger numbers, all eighteen units were strengthened to three cars in 1958 and 1969, with the addition of a centre trailer, and therefore were reclassified as 3H units. Upon the introduction of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TOPS
Total Operations Processing System (TOPS) is a computer system for managing railway locomotives and rolling stock, known for many years of use in the United Kingdom. TOPS was originally developed between the Southern Pacific Railroad (SP), Stanford University and IBM as a replacement for paper-based systems for managing rail logistics. A jointly-owned consultancy company, ''TOPS On-Line Inc.'', was established in 1960 with the goal of implementing TOPS, as well as selling it to third parties. Development was protracted, requiring around 660 man-years of effort to produce a releasable build. During mid-1968, the first phase of the system was introduced on the SP, and quickly proved its advantages over the traditional methods practiced prior to its availability. In addition to SP, TOPS was widely adopted throughout North America and beyond. While it was at one point in widespread use across many of the United States railroads, the system has been perhaps most prominently us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Diesel Multiple Units
British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, the English language as spoken and written in the United Kingdom or, more broadly, throughout the British Isles * Celtic Britons, an ancient ethno-linguistic group * Brittonic languages, a branch of the Insular Celtic language family (formerly called British) ** Common Brittonic, an ancient language Other uses *'' Brit(ish)'', a 2018 memoir by Afua Hirsch *People or things associated with: ** Great Britain, an island ** United Kingdom, a sovereign state ** Kingdom of Great Britain (1707–1800) ** United Kingdom of Great Britain and Ireland (1801–1922) See also * Terminology of the British Isles * Alternative names for the British * English (other) * Britannic (other) * British Isles * Brit (other) * Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavender Line
The Lavender Line is a heritage railway based at Isfield Station, near Uckfield in East Sussex, England. History The Lavender Line was originally part of the Lewes to Uckfield Railway opened to the public on 18 October 1858. This independent company became part of the London, Brighton and South Coast Railway (LB&SCR) in 1864 to safeguard that company's interests east of its London to Brighton main line. Ten years from its opening, Isfield saw through workings from Brighton to Tunbridge Wells and later Tonbridge, via a new Uckfield–Groombridge link. The Uckfield to Lewes section was doubled at this time, though the extension north of Uckfield was single track until 1894. Prior to 1868 trains from Uckfield travelling south to Lewes joined the Keymer Junction to Lewes line north of Lewes at Hamsey, latterly called the "Hamsey Loop". In order to avoid reversal of trains to Brighton at Lewes the 1868 works included abandoning the Hamsey Loop with the heavily engineered ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Heating
Electric heating is a process in which electrical energy is converted directly to heat energy at around 100% efficiency, using rather cheap devices. Common applications include space heating, cooking, water heating and industrial processes. An electric heater is an electrical device that converts an electric current into heat. The heating element inside every electric heater is an electrical resistor, and works on the principle of Joule heating: an electric current passing through a resistor will convert that electrical energy into heat energy. Most modern electric heating devices use nichrome wire as the active element; the heating element, depicted on the right, uses nichrome wire supported by ceramic insulators. Alternatively, a heat pump can achieve around 300% efficiency for heating, or 3.0 Coefficient of performance, because it uses electric power only for transferring existing thermal energy from the surrounding area, mostly air. The heat pump uses an electric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janney Coupler
Janney couplers are a semi-automatic form of railway coupling that allow rail cars and locomotives to be securely linked together without rail workers having to get between the vehicles. They are also known as American, AAR, APT, ARA, MCB, knuckle, Buckeye, tightlock (in the UK), Henricot (in Belgium) or Centre Buffer Couplers. Background Janney couplers were first patented in 1873 by Eli H. Janney (). Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; Beard's patents were granted 23 November 1897, which then sold for approximately $50,000, and granted 16 May 1899. In the UK, several versions of Janney couplers are fitted to a limited number of coaches, multiple units, wagons and locomotives. Janney Type E, Type F Interlock, and Type H tightlock couplings are compatible subtypes, each intended for specific rail car types. Prior to the formation of the Association of American Railroads (AAR) these were known a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Motor
A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles ( electric multiple units) and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with electrical transmission systems ( diesel-electric locomotives, electric hybrid vehicles), and battery electric vehicles. Motor types and control Direct-current motors with series field windings are the oldest type of traction motors. These provide a speed-torque characteristic useful for propulsion, providing high torque at lower speeds for acceleration of the vehicle, and declining torque as speed increases. By arranging the field winding with multiple taps, the speed characteristic can be varied, allowing relatively smooth operator control of acceleration. A further measure of control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 206
The British Rail Class 206 or 3R was a type of Diesel-electric multiple unit (DEMU), introduced in 1964. They were not 'built' as such but rather re-formed from Class 201 and EPB vehicles for use on -- ( North Downs Line) services. Six three-car sets were created, numbered 1201-1206. Creation By 1964, the majority of services on the Southern Region of British Railways had been converted to diesel and electric operation. However, steam locomotives continued to operate the entire service on the North Downs Line. New trains for that route could not be justified because passenger numbers were relatively low. Following service cuts on the Hastings Line, twelve carriages from Class 201 diesel-electric units were available for use, so a decision was made to combine those vehicles with six redundant driving trailers from 2-EPB electric multiple units (EMU). Several changes were made to the vehicles before they entered service. The EPB vehicles were fitted with buckeye couplers to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Railways
British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four (British railway companies), Big Four British railway companies, and was privatisation of British Rail, privatised in stages between 1994 and 1997. Originally a trading brand of the Railway Executive of the British Transport Commission, it became an independent statutory corporation in January 1963, when it was formally renamed the British Railways Board. The period of nationalisation saw sweeping changes in the railway. A process of dieselisation and Railway electrification in Great Britain, electrification took place, and by 1968 steam locomotives had been entirely replaced by diesel and electric traction, except for the Vale of Rheidol Railway (a narrow-gauge railway, narrow-gauge tourist line). Passenger train, Passengers replaced freight train, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 416
British Rail Class 416 ( 2-EPB) was a class of third-rail electric multiple units in service between 1953 and 1995. They were intended for inner suburban passenger services on London's Southern Electric network. There were two subclasses of Class 416: Class 416/1 to an SR design on salvaged 2-NOL underframes, built between 1953 and 1956, and Class 416/2 based on a British Railways Mark 1 coach design. In the 1980s some 2 EPB units were used on the North London Line between Richmond and North Woolwich; these units were equipped with window bars. Tyneside units Fifteen units built in 1954/5 to the BR Mark I coach design were built for the third rail electrified Tyneside Electric lines. They were built at Eastleigh, and were the last Tyneside third rail EMUs built. They followed the new British Railways standard design for suburban rolling stock: similar units were built at the same time for use on South London suburban routes, but the Tyneside units had features in keeping w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SR Multiple Unit Numbering And Classification
The Southern Railway (UK), Southern Railway created classification and numbering systems for its large fleet of electric multiple units, perpetuated by the Southern Region of British Rail until the early 1980s, when the impact of TOPS was felt. Some stock is still allocated Southern-style classifications in a semi-official manner. Classification The early AC electric multiple units were referred to by a two-letter code. This was adapted for the DC third-rail system that was adopted by the Southern Railway, with units being given a three-letter code (sometimes two letters) prefixed by the number of cars in each unit, e.g. 4SUB for a four-car suburban unit. The Southern Region perpetuated this, and the same principles were adopted for diesel-electric multiple units but with single-letter codes. The last type to be officially allocated a designation in this series was the PEP stock of the early 1970s. Some types built since have been given semi-official designations in this style. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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