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André Chapelon
André Chapelon (26 October 1892 – 22 July 1978) was a French mechanical engineer and designer of advanced steam locomotives. A graduate engineer of Ecole Centrale Paris, he was one of very few locomotive designers who brought a rigorous scientific method to their design, and he sought to apply up-to-date theories and knowledge in subjects such as thermodynamics, and gas and fluid flow. Chapelon's work was an early example of what would later be called modern steam, and influenced the work of many later designers of those locomotives, such as Livio Dante Porta. Life and career André Xavier Chapelon was born in Saint-Paul-en-Cornillon, Loire, France on 26 October 1892. According to family relatives, his great-grandfather James Jackson immigrated to France from England in 1812, one of many who came to France in the 19th Century to teach steel production methods. He achieved a distinction in mathematics and science, and served as an artillery officer during World War I before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
École Centrale Paris
École Centrale Paris (ECP; also known as École Centrale or Centrale) was a French grande école in engineering and science. It was also known by its official name ''École Centrale des Arts et Manufactures''. In 2015, École Centrale Paris merged with Supélec to form CentraleSupélec, a constituent college of the University of Paris-Saclay. Founded in 1829, it was among the most prestigious and selective grandes écoles. Rooted in rich entrepreneurial tradition since the industrial revolution era, it served as the cradle for top-level engineers and executives who continue to constitute a major part of the industry leadership in France. Since the 19th century, its model of education for training generalist engineers inspired the establishment of several engineering institutes around the world, such as the École Polytechnique Fédérale de Lausanne in Switzerland, Faculté polytechnique de Mons in Belgium, as well as other member schools of the Ecole Centrales Group alliance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kylchap
The Kylchap steam locomotive exhaust system was designed and patented by French steam engineer André Chapelon, using a second-stage nozzle designed by the Finnish engineer Kyösti Kylälä and known as the ''Kylälä spreader''; thus the name KylChap for this design. Construction The Kylchap exhaust consists of four stacked nozzles, the first exhaust nozzle (UK: blastpipe) blowing exhaust steam only and known as the primary nozzle, this being a Chapelon design using four triangular jets. This exhausts into the second stage, the Kylälä spreader, which mixes the exhaust steam with some of the smokebox gases; this then exhausts into a third stage, designed by Chapelon, that mixes the resulting steam/smokebox gases mixture with yet more smokebox gases. The four nozzles of this then exhaust into the fourth stage, the classic chimney (U.S.: stack) bell-mouth. Theory It was Chapelon's theory that such a multi-stage mixing and suction arrangement would be more efficient than the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London And North Eastern Railway
The London and North Eastern Railway (LNER) was the second largest (after LMS) of the " Big Four" railway companies created by the Railways Act 1921 in Britain. It operated from 1 January 1923 until nationalisation on 1 January 1948. At that time, it was divided into the new British Railways' Eastern Region, North Eastern Region, and partially the Scottish Region. History The company was the second largest created by the Railways Act 1921. The principal constituents of the LNER were: * Great Eastern Railway * Great Central Railway * Great Northern Railway * Great North of Scotland Railway * Hull and Barnsley Railway * North British Railway * North Eastern Railway The total route mileage was . The North Eastern Railway had the largest route mileage of , whilst the Hull and Barnsley Railway was . It covered the area north and east of London. It included the East Coast Main Line from London to Edinburgh via York and Newcastle upon Tyne and the routes from Edinburgh to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nigel Gresley
Sir Herbert Nigel Gresley (19 June 1876 – 5 April 1941) was a British railway engineer. He was one of Britain's most famous steam locomotive engineers, who rose to become Chief Mechanical Engineer (CME) of the London and North Eastern Railway (LNER). He was the designer of some of the most famous steam locomotives in Britain, including the LNER Class A1 and LNER Class A4 4-6-2 Pacific engines. An A1 Pacific, '' Flying Scotsman'', was the first steam locomotive officially recorded over 100 mph in passenger service, and an A4, number 4468 '' Mallard'', still holds the record for being the fastest steam locomotive in the world (126 mph). Gresley's engines were considered elegant, both aesthetically and mechanically. His invention of a three-cylinder design with only two sets of Walschaerts valve gear, the Gresley conjugated valve gear, produced smooth running and power at lower cost than would have been achieved with a more conventional three sets of Walschaerts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 86
The British Rail Class 86 is a class of electric locomotives built during the 1960s. Developed as a 'standard' electric locomotive from earlier prototype models, one hundred of these locomotives were built from 1965 to 1966 to haul trains on the then newly electrified West Coast Main Line (WCML) from London Euston to Birmingham, , Liverpool, Manchester and later Glasgow and . Introduction of the class enabled the replacement of many steam locomotives, which were finally withdrawn by British Rail in 1968. Under the earlier BR classification system, the type was given the designation AL6 (meaning the sixth design of AC locomotive) and locomotives were numbered E3101-E3200. In 1968, this was changed to Class 86 when British Rail introduced the TOPS classification system. The class was built to haul passenger and freight trains alike on the West Coast Main Line, however some members of the class also saw use on the Great Eastern Main Line (GEML) between and , after that line was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred De Glehn
Alfred George de Glehn (15 September 1848 – 8 June 1936) was a notable English-born French designer of steam locomotives and an engineer with the Société Alsacienne de Constructions Mécaniques (SACM). His steam engines of the 1890s combined elegance, high speed, and efficiency. De Glehn's express locomotives were first used on the Nord Railway and on the boat trains from Calais to Paris, where they impressed passengers with their speed. He invented the Glehn system of compounding, and De Glehn types were built in large numbers in France, and were also built in smaller numbers in Belgium, Germany, New Zealand, and Russia, see Compound locomotive. Compounding lost favour from the 1900s, being replaced by superheating. However André Chapelon rebuilt many of the French De Glehn compounds from 1929 onwards. Personal life Alfred De Glehn was one of the twelve children of Robert von Glehn, a Prussian nobleman originally from the Baltic provinces, whose family had estates near Tall ... [...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] |
Trial And Error
Trial and error is a fundamental method of problem-solving characterized by repeated, varied attempts which are continued until success, or until the practicer stops trying. According to W.H. Thorpe, the term was devised by C. Lloyd Morgan (1852–1936) after trying out similar phrases "trial and failure" and "trial and practice". Under Morgan's Canon, animal behaviour should be explained in the simplest possible way. Where behavior seems to imply higher mental processes, it might be explained by trial-and-error learning. An example is a skillful way in which his terrier Tony opened the garden gate, easily misunderstood as an insightful act by someone seeing the final behavior. Lloyd Morgan, however, had watched and recorded the series of approximations by which the dog had gradually learned the response, and could demonstrate that no insight was required to explain it. Edward Lee Thorndike was the initiator of the theory of trial and error learning based on the findings he sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strobe Light
A strobe light or stroboscopic lamp, commonly called a strobe, is a device used to produce regular flashes of light. It is one of a number of devices that can be used as a stroboscope. The word originated from the Ancient Greek ('), meaning "act of whirling". A typical commercial strobe light has a flash energy in the region of 10 to 150 joules, and discharge times as short as a few milliseconds, often resulting in a flash power of several kilowatts. Larger strobe lights can be used in “continuous” mode, producing extremely intense illumination. The light source is commonly a xenon flash lamp, or ''flashtube'', which has a complex spectrum and a color temperature of approximately 5,600 kelvins. To obtain colored light, colored gels may be used. Scientific explanation of flashtubes Strobe lights usually use flashtubes with energy supplied from a capacitor, an energy storage device much like a battery, but capable of charging and releasing energy much faster. In a ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephenson Locomotive Society
The Stephenson Locomotive Society (SLS) was founded in the UK in Autumn 1909 for the study of rail transport and locomotives. More recently, on 1 January 2017, the SLS became a private company limited by guarantee, registered in England and Wales 10471004 (Current Registered Office First Floor, Templeback, 10 Temple Back, BRISTOL, BS1 6FL). The Society was originally named ''The Stephenson Society'' in honour of the Stephenson family of engineers and not solely George Stephenson as often, erroneously, stated. In late 1911 the professional engineers seceded from the Society to form the ''Junior Institution of Locomotive Engineers'' and the Society then took its present name. Despite this the SLS has since attracted professional locomotive engineers such as William Stanier, Oliver Bulleid and André Chapelon, as well as amateurs. It also has local Centres which organise meetings and trips of railway interest such as special trains.{{cite book, author=Simmons, Jack, editor=Biddle, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
