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Edgar Claxton
Edgar Claxton MBE, FICE, FIEE, FIMechE (7 July 1910 – 13 August 2000) was a British rail engineer. He worked for the British Railways Board and was part of the team which electrified parts of the United Kingdom's mainline railway network in the 1960s. He was responsible for "design and procurement of all the equipment, and for the electrification side of the projects." He was made an MBE in 1969 for his work. Background and private life Edgar Claxton's parents were Edgar "Ted" Claxton (Marylebone 10 June 1883 – Hillingdon 5 February 1971), and Nellie Mildred "Helen" Petty ( Hackney 20 August 1883 – Uxbridge 21 February 1945). They married on 1 August 1908, in Hammersmith. Ted was a poor law settlement officer, working around the country from the offices of St Marylebone Workhouse. At the same time he was registrar for births and deaths for Marylebone parish, working from an office in his home, as did his father Jesse. Helen was a music teacher, and the honorary piano a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The British Empire
The Most Excellent Order of the British Empire is a British order of chivalry, rewarding contributions to the arts and sciences, work with charitable and welfare organisations, and public service outside the civil service. It was established on 4 June 1917 by King George V and comprises five classes across both civil and military divisions, the most senior two of which make the recipient either a knight if male or dame if female. There is also the related British Empire Medal, whose recipients are affiliated with, but not members of, the order. Recommendations for appointments to the Order of the British Empire were originally made on the nomination of the United Kingdom, the self-governing Dominions of the Empire (later Commonwealth) and the Viceroy of India. Nominations continue today from Commonwealth countries that participate in recommending British honours. Most Commonwealth countries ceased recommendations for appointments to the Order of the British Empire when they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uxbridge
Uxbridge () is a suburban town in west London and the administrative headquarters of the London Borough of Hillingdon. Situated west-northwest of Charing Cross, it is one of the major metropolitan centres identified in the London Plan. Uxbridge formed part of the parish of Hillingdon in the county of Middlesex, and was a significant local commercial centre from an early time. As part of the suburban growth of London in the 20th century it expanded and increased in population, Municipal Borough of Uxbridge, becoming a municipal borough in 1955, and has formed part of Greater London since 1965. A few major events have taken place in and around the town, including attempted negotiations between King Charles I of England, Charles I and the Roundhead, Parliamentary Army during the English Civil War. The public house at the centre of those events, since renamed the Crown and Treaty, Crown & Treaty, still stands. RAF Uxbridge houses the Battle of Britain Bunker, from where the air de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Line
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, trolleybuses or trams. It is known variously as: * Overhead catenary * Overhead contact system (OCS) * Overhead equipment (OHE) * Overhead line equipment (OLE or OHLE) * Overhead lines (OHL) * Overhead wiring (OHW) * Traction wire * Trolley wire This article follows the International Union of Railways in using the generic term ''overhead line''. An overhead line consists of one or more wires (or rails, particularly in tunnels) situated over rail tracks, raised to a high electrical potential by connection to feeder stations at regular intervals. The feeder stations are usually fed from a high-voltage electrical grid. Overview Electric trains that collect their current from overhead lines use a device such as a pantograph, bow collector or trolley pole. It presses against the underside of the lowest overhead wire, the contact wire. Current collectors ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. They are a common component of the infrastructure, for instance there are 55,000 substations in the United States. Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control. The word ''substation'' comes from the days before the distribution system became a grid. As central generation stations became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Station
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more generators, a rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, oil, and natural gas to generate electricity. Low-carbon power sources include nuclear power, and an increasing use of renewables such as solar, wind, geothermal, and hydroelectric. History In early 1871 Belgian inventor Zénobe Gramme invented a generator powerful enough to produce power on a commercial scale for industry. In 1878, a hydroelectric power station was designed and built b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Donkin
Sydney Bryan Donkin (24 June 1871 – 12 November 1952) was a British civil engineer. His parents were Bryan Donkin Junior and Georgina Dillon. Donkin was educated at University College, London before beginning work for Sulzer Brothers, mechanical engineers, later the Sulzer company. Whilst based at this company's headquarters in Switzerland he became interested in Alpine climbing and spent much of his spare time climbing the nearby peaks. He was a founding member of the Climbers' Club and served on their committee in 1908 and later as vice-president and president. He later became an assistant to Alexander Kennedy, the electrical engineer, and worked on several large hydro-electric dams including the first Lower Aswan Dam and the Owen Falls Dam. He also sat on the general board of the National Physical Laboratory, as chairman of the Association of Consulting Engineers, president of the Association of Supervisory Electrical Engineers, president of the Institution of Civil E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Kennedy
Sir Alexander Blackie William Kennedy FRS, FRGS (17 March 1847 – 1 November 1928), better known simply as Alexander Kennedy, was a leading British civil and electrical engineer and academic. A member of many institutions and the recipient of three honorary doctorates, Kennedy was also an avid mountaineer and a keen amateur photographer being one of the first to document the archaeological site of Petra in Jordan following the collapse of the Ottoman Empire. Early life and works Kennedy was born in Stepney, London to Rev. John Kennedy, MA, and Helen Stodart Blackie, both from Aberdeen. His maternal uncle was John Stuart Blackie, a Scottish scholar. He received his early education at the City of London School, before taking a short course at the Royal School of Mines, Jermyn Street to give him a basic grounding in engineering. In 1864, he was apprenticed into the shipbuilding firm of J & W Dudgeon of Cubitt Town. He spent the next four years there working as a draughtsman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strike Tone
The strike tone, strike note, or tap note, of a percussion instrument (e.g. bell, chime or gong) when struck, is the dominant note perceived immediately by the human ear. It is also known as the prime or fundamental note. However, an analysis of the bell's frequency spectrum reveals that the fundamental only exists weakly and its dominance is a human perception of a note built up by the complex series of harmonics that are generated. The correct and accurate harmonic tuning is therefore important in creating a good strike tone. Composition of the strike tone When a bell is struck, the energy imparted causes vibration of the bell in a complex manner and a series of tones known as partials or harmonics are generated. "This atonal strike sound includes many inharmonic partials that die out quickly, giving way to a strike note or strike tone that is dominated by the prominent partials of the bell. Most observers identify the metallic strike note as having a pitch at or near the fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inquest
An inquest is a judicial inquiry in common law jurisdictions, particularly one held to determine the cause of a person's death. Conducted by a judge, jury, or government official, an inquest may or may not require an autopsy carried out by a coroner or medical examiner. Generally, inquests are conducted only when deaths are sudden or unexplained. An inquest may be called at the behest of a coroner, judge, prosecutor, or, in some jurisdictions, upon a formal request from the public. A coroner's jury may be convened to assist in this type of proceeding. ''Inquest'' can also mean such a jury and the result of such an investigation. In general usage, ''inquest'' is also used to mean any investigation or inquiry. An inquest uses witnesses, but suspects are not permitted to defend themselves. The verdict can be, for example, natural death, accidental death, misadventure, suicide, or murder. If the verdict is murder or culpable accident, criminal prosecution may follow, and suspects are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pillion
A pillion is a secondary pad, cushion, or seat behind the main seat or saddle on a horse, motorcycle, bicycle or moped. A passenger in this seat is said to "ride pillion". The word is derived from the Scottish Gaelic for "little rug", ''pillean'', from the Latin ''pellis'', "animal skin". One or more pelts often were used as a secondary seat on horseback; the usage has carried over to motorcycles. Historical references Following its retreat from the Battle of Dunkirk (where it is reputed that enough equipment was left behind to equip about eight to ten divisions), the British Army introduced a requirement that all officers up to the rank of colonel should be proficient in the use of the motorcycle, and all officers holding the rank of brigadier were required to be able to ride pillion. These requirements came about as a result of the large number of motor cars that were lost in action. The requirement for riding pillion was quietly dropped as large numbers of jeeps came into ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineering
Engineering is the use of scientific method, scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more specialized List of engineering branches, fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. See glossary of engineering. The term ''engineering'' is derived from the Latin ''ingenium'', meaning "cleverness" and ''ingeniare'', meaning "to contrive, devise". Definition The American Engineers' Council for Professional Development (ECPD, the predecessor of Accreditation Board for Engineering and Technology, ABET) has defined "engineering" as: The creative application of scientific principles to design or develop structures, machines, apparatus, or manufacturing processes, or works utilizing them singly or in combination; or to construct o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Undergraduate Degree Classification
The British undergraduate degree classification system is a grading structure for undergraduate degrees or bachelor's degrees and integrated master's degrees in the United Kingdom. The system has been applied (sometimes with significant variations) in other countries and regions. History The classification system as currently used in the United Kingdom was developed in 1918. Honours were then a means to recognise individuals who demonstrated depth of knowledge or originality, as opposed to relative achievement in examination conditions. Concern exists about possible grade inflation. It is claimed that academics are under increasing pressure from administrators to award students good marks and grades with little regard for those students' actual abilities, in order to maintain their league table rankings. The percentage of graduates who receive a First (First Class Honours) has grown from 7% in 1997 to 26% in 2017, with the rate of growth sharply accelerating toward the end of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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