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Williamson Flat Twin
The Williamson Flat Twin was motorcycle made in Coventry, UK by William ('Billy') Williamson, who had been managing director of the Coventry-based Rex company. He teamed up with William Douglas (of Douglas Motorcycles to develop new prototype motorcycles under the name Williamson-Douglas and employed Billy's brother Harold as a test rider. Douglas had been developing a 964 cc water-cooled flat twin engine that could be used either for light cars or motorcycles. Billy Williamson fitted this engine into a frame with Douglas-Druid girder forks and a Douglas two-speed gearbox and a foot-operated clutch which was launched in 1912 at a cost of £82. In 1913 an air-cooled version was added to the range and in 1914 a kick starter was added. Production was halted by World War I and in 1919 the only engines available were JAP 980 cc air-cooled side valves, so Williamson redesigned the frame to fit. Unfortunately Billy Williamson suffered a fatal heart attack in 1920 after only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fastest Production Motorcycles
The fastest production motorcycle for a given year is the unmodified motorcycle with the highest tested top speed that was manufactured in series and available for purchase by the general public. Modified or specially produced motorcycles are a different class, motorcycle land-speed record. Unlike those records, which are officially sanctioned by the Fédération Internationale de Motocyclisme (FIM), production model tests were conducted under a variety of unequal or undefined conditions, and tested by numerous different sources, mainly motorcycling magazines. This has led to inconsistent and sometimes contradictory speed statistics from various sources. Fastest production motorcycles Several models went out of production before being surpassed by a contemporary with a higher top speed. Until a model was introduced that was faster than any previous motorcycle, the fastest bike on the market for a given year was actually slower than an earlier, out of production bike. Models which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Williamson Motor Company
Williamson may refer to: Places *Williamson, Arizona *Williamson, Georgia *Williamson, Illinois *Williamson, Iowa *Williamson, New York, a town in Wayne County, New York. *Williamson (CDP), New York, a hamlet and census-designated place in Wayne County, New York. *Williamson, West Virginia *Williamson County, Illinois *Williamson County, Tennessee *Williamson County, Texas People *Williamson (surname) Other uses *'' Williamson v. Lee Optical Co.'', a 1955 U.S. Supreme Court case *Williamson amplifier, a type of push-pull audio amplifier with low distortion first designed in 1947 *Williamson Road Junior Public School, an elementary school in Toronto, Ontario *Williamson ether synthesis, one of the most common methods for preparing ethers See also *Williams (other) *Williamston (other) *Williamstown (other) *Justice Williamson (other) Justice Williamson * John Isaac Williamson, associate justice of the Supreme Court of Missouri * Robert B. Willi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heart Attack
A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to the coronary artery of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck or jaw. Often it occurs in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat or feeling tired. About 30% of people have atypical symptoms. Women more often present without chest pain and instead have neck pain, arm pain or feel tired. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, cardiogenic shock or cardiac arrest. Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycles Of The United Kingdom
A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance Long distance or Long-distance may refer to: *Long-distance calling * Long-distance operator * Long-distance relationship * Long-distance train *Long-distance anchor pylon, see dead-end tower Footpaths * Long-distance trail *European long-d ... travel, Motorcycle commuting, commuting, cruising (driving), cruising, Motorcycle sport, sport (including Motorcycle racing, racing), and Off-roading, off-road riding. Motorcycling is riding a motorcycle and being involved in other related social activity such as joining a motorcycle club and attending motorcycle rally, motorcycle rallies. The 1885 Daimler Reitwagen made by Gottlieb Daimler and Wilhelm Maybach in Germany was the first internal combustion, petroleum-fueled motorcycle. In 1894, Hildebrand & Wolfmüller ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pope Model L
The Pope Model L was a motorcycle produced by Pope Manufacturing Company in Westfield, Massachusetts, between 1914 and 1920. The Model L was, at , the fastest motorcycle in the world when introduced. It was technologically advanced for its time, with features not found on other motorcycles, such as overhead valves, chain drive (from 1918) and multi-speed transmission. It was also expensive at $250, as much then as a Model T automobile. (Another source of competition were cyclecars) Specifications Specifications in infobox to the right are from the Smithsonian Institution. Postage stamp A five cent United States postage stamp was issued in October, 1983, with an engraved image of the Pope Model L. See also *List of motorcycles of the 1910s *FN Four *Sears Dreadnought *Thor Model U *List of fastest production motorcycles The fastest production motorcycle for a given year is the unmodified motorcycle with the highest tested top speed that was manufactured in series and availabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Scott Motorcycle Company
The Scott Motorcycle Company was owned by Scott Motors (Saltaire) Limited, Shipley, West Yorkshire, England and was a well-known producer of motorcycles and light engines for industry. Founded by Alfred Angas Scott in 1908 as the ''Scott Engineering Company'' in Bradford, Yorkshire, Scott motorcycles were produced until 1978. Development Scott's inspiration In an article in ''Motor Cycle'' magazine in 1914, Alfred Scott wrote that he was drawn to the two-stroke engine because he was trained on high speed steam and marine engines, and when turning his attention to gas and petrol engines the regular power strokes of the two-stroke (or Day cycle as he sometimes called it), seemed preferable to the one power stroke in four of the Otto cycle. He said this attraction to the two stroke was further enhanced by the reliable and excellent service from a two stroke engine designed by his brother (A. F. Scott M.I.M.E) and used to drive machinery in his experimental workshop. Experimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Motorcycles By Type Of Engine
List of motorcycles by type of engine is a list of motorcycles by the type of motorcycle engine used by the vehicle, such as by the number of cylinders or configuration. A transverse engine is an engine mounted in a vehicle so that the engine's crankshaft axis is perpendicular to the direction of travel. In a longitudinal engine configuration, the engine's crankshaft axis is parallel with the direction of travel. However, the description of the orientation of "V" and "flat" motorcycle engines differs from this convention. Motorcycles with a V-twin engine mounted with its crankshaft mounted in line with the frame, e.g. the Honda CX series, are said to have "transverse" engines, while motorcycles with a V-twin mounted with its crankshaft mounted perpendicular to the frame, e.g. most Harley-Davidsons, are said to have "longitudinal" engines. This convention uses the longest horizontal dimension (length or width) of the engine as its axis instead of the line of the crankshaft. There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Motorcycles Of The 1910s
List of motorcycles of the 1910s is a listing of motorcycles of the 1910s, including those on sale, introduced, or otherwise relevant in this period. The 1910s has their share of expensive historic motorcycles sold at auction, especially the brands Cyclone and Flying Merkel. A 1915 Cyclone Board Track Racer went for US$852,500 at an auction in 2015, one of the just 12 that survived; another of this model sold for $551,200 in 2008. A 1911 Flying Merkel Board Track Racer went for $423,500 in 2015 and a 1911 Flying Merkel for $201,250 in 2011. A 1911 Harley-Davidson 7D went for $283,400 in 2014. The $850k for the Cyclone Board Track was the highest price yet known to be paid publicly for a motorcycle auction (of any decade). Examples *Acme * Acme (by EMY Ready) * Adria (motorcycle) * AJS Model D * ANA *Autoped * Bat No. 2 Light Roadster * Blackburne motorcycles *Bi-Autogo *Cleveland motorcycle *Cyclone motorcycles *Cyclone Board Track Racer (1915 V-Twin). *Detroit Single motorc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Side Valve
A flathead engine, also known as a sidevalve engine''American Rodder'', 6/94, pp.45 & 93. or valve-in-block engine is an internal combustion engine with its poppet valves contained within the engine block, instead of in the cylinder head, as in an overhead valve engine. Flatheads were widely used internationally by automobile manufacturers from the late 1890s until the mid-1950s but were replaced by more efficient overhead valve and overhead camshaft engines. They are currently experiencing a revival in low-revving aero-engines such as the D-Motor. The side-valve design The valve gear comprises a camshaft sited low in the cylinder block which operates the poppet valves via tappets and short pushrods (or sometimes with no pushrods at all). The flathead system obviates the need for further valvetrain components such as lengthy pushrods, rocker arms, overhead valves or overhead camshafts. The sidevalves are typically adjacent, sited on one side of the cylinder(s), though some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle
A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising, sport (including racing), and off-road riding. Motorcycling is riding a motorcycle and being involved in other related social activity such as joining a motorcycle club and attending motorcycle rallies. The 1885 Daimler Reitwagen made by Gottlieb Daimler and Wilhelm Maybach in Germany was the first internal combustion, petroleum-fueled motorcycle. In 1894, Hildebrand & Wolfmüller became the first series production motorcycle. Globally, motorcycles are comparably popular to cars as a method of transport. In 2021, approximately 58.6 million new motorcycles were sold around the world, fewer than the 66.7 million cars sold over the same period. In 2014, the three top motorcycle producers globally by volume were Honda (28%), Yamaha (17 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JA Prestwich Industries
JA Prestwich Industries, was a British engineering equipment manufacturing company named after founder John Alfred Prestwich, which was formed in 1951 by the amalgamation of J.A.Prestwich and Company Limited and Pencils Ltd. History John Prestwich, an engineer, commenced manufacture of scientific instruments in 1895, when he was 20, initially behind his father's house at 1 Lansdowne Road, Tottenham, London. By 1911 he had moved to new premises in Tariff Road, within the Northumberland Park area of Tottenham, London, anwhich still exists as of 2015 Prestwich was initially best known for his cinematography cameras and projectors. He worked with S.Z. de Ferranti and later the cinema pioneer William Friese-Greene. Circa 1902 J.A.Prestwich and Company began manufacturing motorcycle engines which were used in many motorcycle marques. The motorcycle engines were associated with racing and record success and were used in speedway bikes into the 1960s. Prestwich also made engines for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kick Starter
Kickstarter is an American public benefit corporation based in Brooklyn, New York, that maintains a global crowdfunding platform focused on creativity. The company's stated mission is to "help bring creative projects to life". As of July 2021, Kickstarter has received $6.6 billion in pledges from 21 million backers to fund 222,000 projects, such as films, music, stage shows, comics, journalism, video games, board games, technology, publishing, and food-related projects. People who back Kickstarter projects are offered tangible rewards or experiences in exchange for their pledges. This model traces its roots to subscription model of arts patronage, where artists would go directly to their audiences to fund their work. History Kickstarter launched on April 28, 2009, by Perry Chen, Yancey Strickler, and Charles Adler. ''The New York Times'' called Kickstarter "the people's NEA". ''Time'' named it one of the "Best Inventions of 2010" and "Best Websites of 2011". Kickstarter report ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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