Tops And Bottoms
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Tops And Bottoms
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 used ...
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483004 Shanklin 1
__NOTOC__ Year 483 ( CDLXXXIII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Aginantius without colleague (or, less frequently, year 1236 ''Ab urbe condita''). The denomination 483 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Byzantine Empire * Byzantine general Illus (''magister officiorum''), and Verina (widow of the late emperor Leo I), attempt to overthrow Emperor Zeno and place another general named Leontius on the throne. Europe * The Ostrogoths are given status as ''foederati''; they control a large part of Macedonia and Thrace (Balkans). By topic Religion * March 10 – Pope Simplicius dies at Rome after a 15-year reign, and is succeeded by Felix III as the 48th pope. He is a widower with two children. Births * X ...
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Government Of The United Kingdom
ga, Rialtas a Shoilse gd, Riaghaltas a Mhòrachd , image = HM Government logo.svg , image_size = 220px , image2 = Royal Coat of Arms of the United Kingdom (HM Government).svg , image_size2 = 180px , caption = Royal coat of arms of the United Kingdom, Royal Arms , date_established = , state = United Kingdom , address = 10 Downing Street, London , leader_title = Prime Minister of the United Kingdom, Prime Minister (Rishi Sunak) , appointed = Monarchy of the United Kingdom, Monarch of the United Kingdom (Charles III) , budget = 882 billion , main_organ = Cabinet of the United Kingdom , ministries = 23 Departments of the Government of the United Kingdom#Ministerial departments, ministerial departments, 20 Departments of the Government of the United Kingdom#Non-ministerial departments, non-ministerial departments , responsible = Parliament of the United Kingdom , url = The Government of the United Kingdom (commonly referred to as British Governmen ...
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Electric Locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or on-board energy storage such as a battery or a supercapacitor. Locomotives with on-board fuelled prime movers, such as diesel engines or gas turbines, are classed as diesel-electric or gas turbine-electric and not as electric locomotives, because the electric generator/motor combination serves only as a power transmission system. Electric locomotives benefit from the high efficiency of electric motors, often above 90% (not including the inefficiency of generating the electricity). Additional efficiency can be gained from regenerative braking, which allows kinetic energy to be recovered during braking to put power back on the line. Newer electric locomotives use AC motor-inverter drive systems that provide for regenerative braking. Electric locomotives are quiet compared to diesel locomotives since there is no engine and exhaust noise and less mechanical noise. The lack of re ...
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British Rail Class 158
The British Rail Class 158 '' Express Sprinter'' is a diesel multiple unit (DMU) passenger train. It is a member of the Sprinter series of regional trains, produced as a replacement for British Rail's first generation of DMUs; of the other members, the Class 159 is almost identical to the Class 158, having been converted from Class 158 to Class 159 in two batches to operate express services from London Waterloo to the West of England. The Class 158 was constructed between 1989 and 1992 by British Rail Engineering Limited (BREL) at its Derby Litchurch Lane Works. The majority were built as two-car sets, some three-car sets were also produced. During September 1990, the first Express Sprinters were operated by ScotRail; the type was promptly introduced to secondary routes across the Midlands, Northern England, Wales and the South West. The Class 158 enabled the replacement of large numbers of elderly DMUs but also several locomotive-hauled trains as well; this was partially a ...
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British Rail Class 41 (HST)
The British Rail Class 41 were two powercars built in 1972 by British Rail Engineering Limited's Crewe Works to operate with the prototype High Speed Train (HST) with Mark 3 carriages. History Two power cars were built in 1972 by British Rail Engineering Limited's Crewe Works, numbered 41001 and 41002. They initially conducted tests on the East Coast Main Line with the set based at Neville Hill TMD.Evolution trials of HST ''The Railway Magazine'' issue 880 August 1974 page 379 Having accumulated more than , including setting a diesel train speed record of between Northallerton and Thirsk in June 1973, they moved to the Great Western Main Line in 1974. On 5 May 1975, both entered revenue service on Great Western services between London Paddington and Bristol Temple Meads / Weston-super-Mare. After the Class 252 re-classification they were renumbered into the carriage numbering range as 43000 and 43001. After being replaced by production Class 43 HST powercars in the earl ...
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British Rail Class 43 (HST)
The British Rail Class 43 (HST) is the TOPS classification used for the InterCity 125 ''High Speed Train'' (formerly Classes British Rail Class 253, 253 and British Rail Class 254, 254) power cars, built by British Rail Engineering Limited from 1975 to 1982, and in service in the UK since 1976. The class is officially the Railway speed record#Fuel-electric, fastest diesel locomotive in the world, with an absolute maximum speed of , and a regular service speed of . The record run was led by 43102 (43302) and trailed by 43159. History and background In the early 1970s, the British Railways Board made the decision to replace its main-line express diesel traction. Financial limitations were tight, so mass electrification was not possible. As a result, a new generation of high-speed diesel trains had to be developed. Experience with the high-speed British Rail Class 55, Class 55 ''Deltic'' locomotives had shown that a low axle weight was essential to avoid damage to the track at ...
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Multiple Unit
A multiple-unit train or simply multiple unit (MU) is a self-propelled train composed of one or more carriages joined together, which when coupled to another multiple unit can be controlled by a single driver, with multiple-unit train control. Although multiple units consist of several carriages, single self-propelled carriages – also called railcars, rail motor coaches or railbuses – are in fact multiple-units when two or more of them are working connected through multiple-unit train control (regardless if passengers can walk between the units or not). History Multiple-unit train control was first used in electric multiple units in the 1890s. The Liverpool Overhead Railway opened in 1893 with two-car electric multiple units, controllers in cabs at both ends directly controlling the traction current to motors on both cars. The multiple-unit traction control system was developed by Frank Sprague and first applied and tested on the South Side Elevated Railroad (now p ...
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British Rail Class 31-4 Dataplate
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) * Briton (d ...
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Diesel Locomotive
A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels. Early internal combustion locomotives and railcars used kerosene and gasoline as their fuel. Rudolf Diesel patented his first compression-ignition engine in 1898, and steady improvements to the design of diesel engines reduced their physical size and improved their power-to-weight ratios to a point where one could be mounted in a locomotive. Internal combustion engines only operate efficiently within a limited power band, and while low power gasoline engines could be coupled to mechanical transmissions, the more powerful diesel engines required the development of new forms of transmission. This is because clutches would need to be very large at these power levels and would not fit in a standard -wide locomotive frame, or wear too quic ...
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Steam Locomotives Of British Railways
The steam locomotives of British Railways were used by British Railways over the period 1948–1968. The vast majority of these were inherited from its four constituent companies, the " Big Four". In addition, BR built 2,537 steam locomotives in the period 1948–1960, 1,538 to pre-nationalisation designs and 999 to its own standard designs. These locomotives had short working lives, some as little as five years, because of the decision to end the use of steam traction by 1968, against a design life of over 30 years and a theoretical final withdrawal date of between 1990 and 2000. Background British Railways was created on 1 January 1948 principally by the merger of the " Big Four" grouped railway companies: the Great Western Railway (GWR), the London, Midland and Scottish Railway (LMS), the London and North Eastern Railway (LNER) and the Southern Railway (SR). It inherited a wide legacy of locomotives and rolling stock, much of which needed replacing due to the ravages of Wor ...
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Trade Union
A trade union (labor union in American English), often simply referred to as a union, is an organization of workers intent on "maintaining or improving the conditions of their employment", ch. I such as attaining better wages and benefits (such as holiday, health care, and retirement), improving working conditions, improving safety standards, establishing complaint procedures, developing rules governing status of employees (rules governing promotions, just-cause conditions for termination) and protecting the integrity of their trade through the increased bargaining power wielded by solidarity among workers. Trade unions typically fund their head office and legal team functions through regularly imposed fees called ''union dues''. The delegate staff of the trade union representation in the workforce are usually made up of workplace volunteers who are often appointed by members in democratic elections. The trade union, through an elected leadership and bargaining committee, ...
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Telecommunications
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drumb ...
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