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Xtra (automobile)
The Xtra was an English three-wheel cyclecar launched at the Olympia show in November 1921The Olympia Show, The Motor Cycle, 1 Dec 1921, p742 and built until 1924 by Xtra Cars, Ltd., of London Road, Chertsey, Surrey. A very basic machine, it was designed by Cuthbert Clarke and resembled a three-wheeled sidecar in most respects. The car was powered by a 3.75 hp single-cylinder, two stroke, 270 cc Villiers engine and had a friction drive two-speed transmission, using two cork covered wheels of different sizes, chain driven by the engine. These wheels ran within a drum which was mounted on the single rear wheel and one would make contact to provide drive at the appropriate ratio. They were controlled by a lever which could be pushed or pulled to engage drive and had a central neutral position. There was no reverse gear. Rear suspension was by a coil spring on the engine frame. There was no front axle, the wheels were controlled by two transverse leaf springs. Steerin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclecar
A cyclecar was a type of small, lightweight and inexpensive motorized car manufactured in Europe and the United States between 1910 and the early 1920s. The purpose of cyclecars was to fill a gap in the market between the motorcycle and the car. It could accommodate only two passengers, often sitting in tandem. The demise of cyclecars was due to larger cars – such as the Citroën Type C, Austin 7 and Morris Cowley – becoming more affordable. Small, inexpensive vehicles reappeared after World War II, and were known as microcars. Characteristics Cyclecars were propelled by engines with a single cylinder or V-twin configuration (or occasionally a three or four cylinder engine), which were often air-cooled. Sometimes motorcycle engines were used, in which case the motorcycle gearbox was also used. All cyclecars were required to have clutches and variable gears. This requirement could be fulfilled by even the simplest devices such as provision for slipping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plywood
Plywood is a composite material manufactured from thin layers, or "plies", of wood veneer that have been stacked and glued together. It is an engineered wood from the family of manufactured boards, which include plywood, medium-density fibreboard (MDF), oriented strand board (OSB), and particle board (or chipboard). All plywoods bind resin and wood fibre sheets (cellulose cells are long, strong and thin) to form a composite material. The sheets of wood are stacked such that each layer has its grain set typically (see below) perpendicular to its adjacent layers. This alternation of the grain is called ''cross-graining'' and has several important benefits: it reduces the tendency of wood to split when nailed at the edges; it reduces thickness swelling and shrinkage, providing improved dimensional stability; and it makes the strength of the panel consistent across all directions. There is usually an odd number of plies, so that the sheet is balanced, that is, the surface layers ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defunct Motor Vehicle Manufacturers Of England
{{Disambiguation ...
Defunct may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the process of becoming antiquated, out of date, old-fashioned, no longer in general use, or no longer useful, or the condition of being in such a state. When used in a biological sense, it means imperfect or rudimentary when comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three-wheeled Motor Vehicles
A three-wheeler is a vehicle with three wheels. Some are motorized tricycles, which may be legally classed as motorcycles, while others are tricycles without a motor, some of which are human-powered vehicles and animal-powered vehicles. Overview Many three-wheelers which exist in the form of motorcycle-based machines are often called trikes and often have the front single wheel and mechanics similar to that of a motorcycle and the rear axle similar to that of a car. Often such vehicles are owner-constructed using a portion of a rear-engine, rear-drive Volkswagen Beetle in combination with a motorcycle front end. Other trikes include that are specially constructed for off-road use. Three-wheelers can have either one wheel at the back and two at the front (2F1R), (for example: Morgan Motor Company) or one wheel at the front and two at the back (1F2R) (such as the Reliant Robin). Due to better safety when braking, an increasingly popular form is the front-steering "tadpole" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclecars
A cyclecar was a type of small, lightweight and inexpensive motorized car manufactured in Europe and the United States between 1910 and the early 1920s. The purpose of cyclecars was to fill a gap in the market between the motorcycle and the car. It could accommodate only two passengers, often sitting in tandem. The demise of cyclecars was due to larger cars – such as the Citroën Type C, Austin 7 and Morris Cowley – becoming more affordable. Small, inexpensive vehicles reappeared after World War II, and were known as microcars. Characteristics Cyclecars were propelled by engines with a single cylinder or V-twin configuration (or occasionally a three or four cylinder engine), which were often air-cooled. Sometimes motorcycle engines were used, in which case the motorcycle gearbox was also used. All cyclecars were required to have clutches and variable gears. This requirement could be fulfilled by even the simplest devices such as provision for slipping th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Car Manufacturers Of The United Kingdom
:''This list is incomplete. You can help by adding correctly sourced information about other manufacturers.'' Major current marques Current manufacturers ;A *AC Cars, AC (1908–present) *Action Automotive (2004–present) *Aeon Sportscars (2000–present) *AK Sportscars (1992–present) *Alcraft Motor Company (2014–present) *Allard Motor Company, Allard (2012–present) *Alvis Car and Engineering Company#Revived_company, Alvis (2012–present) *AM Sportscars (1996–present) *Arash Motor Company, Arash (2006–present) *Arkley (automobile), Arkley Sportscars (1970–present) *Ariel Motor Company, Ariel (1999–present) *Arrival (company), Arrival (2015–present) *AS Motorsport (2007–present) *Asquith Brothers (1912–present) *Asquith Motors (1981–present) *''Aston Martin'' (1913–present) *Atalanta Motors (2011–present) *Austin Motor Company (2015–present) *Automotive Systems Developments (1983–present) *Autotrak (Cobretti) (1989–present) *Autotune ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JA Prestwich Industries Ltd
J. A. 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 engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acetylene
Acetylene (Chemical nomenclature, systematic name: ethyne) is a chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities such as divinyl sulfide and phosphine.Compressed Gas Association (1995Material Safety and Data Sheet – Acetylene As an alkyne, acetylene is Saturated and unsaturated compounds, unsaturated because its two carbon atoms are Chemical bond, bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°. The triple bond in acetylene results in a high energy content that is released when acetylene is burned. Discovery Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rack And Pinion
rack and pinion is a type of linear actuator that comprises a circular gear (the '' pinion'') engaging a linear gear (the ''rack''). Together, they convert between rotational motion and linear motion: rotating the pinion causes the rack to be driven in a line. Conversely, moving the rack linearly will cause the pinion to rotate. The rack and pinion mechanism is used in rack railways, where the pinion mounted on a locomotive or a railroad car engages a rack usually placed between the rails, and helps to move the train up a steep gradient. It is also used in arbor presses and drill presses, where the pinion is connected to a lever and displaces a vertical rack (the ram). In pipelines and other industrial piping systems, a rack displaced by a linear actuator turns a pinion to open or close a valve. Stairlifts, lock gates, electric gates, and the mechanical steering mechanism of cars are other notable applications. The term "rack and pinion" may be used also when the rac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclecar
A cyclecar was a type of small, lightweight and inexpensive motorized car manufactured in Europe and the United States between 1910 and the early 1920s. The purpose of cyclecars was to fill a gap in the market between the motorcycle and the car. It could accommodate only two passengers, often sitting in tandem. The demise of cyclecars was due to larger cars – such as the Citroën Type C, Austin 7 and Morris Cowley – becoming more affordable. Small, inexpensive vehicles reappeared after World War II, and were known as microcars. Characteristics Cyclecars were propelled by engines with a single cylinder or V-twin configuration (or occasionally a three or four cylinder engine), which were often air-cooled. Sometimes motorcycle engines were used, in which case the motorcycle gearbox was also used. All cyclecars were required to have clutches and variable gears. This requirement could be fulfilled by even the simplest devices such as provision for slipping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Automobile (magazine)
''Automotive Industries'' (''AI'') is one of the world's oldest continually published trade publications and the oldest specialising in the automaking business. It was founded in November 1895 as ''The Horseless Age'', the second magazine created to cover the world's transition from horse-drawn conveyances to those powered by the new internal combustion engine. The magazine changed its name to ''The Automobile'' in July 1909, an era when gasoline, steam and electricity all vied for pre-eminence in motive power. The magazine's present name was established in November 1917. The title was briefly amended to ''Automotive and Aviation Industries'' during the World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ... years, as the magazine expanded its coverage of technologies and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission (mechanics)
A transmission (also called a gearbox) is a mechanical device invented by Louis Renault (industrialist), Louis Renault (who founded Renault, Renault) which uses a gear set—two or more gears working together—to change the speed, direction of rotation, or torque multiplication/reduction in a machine. Transmissions can have a single fixed-gear ratio, multiple distinct gear ratios, or continuously variable ratios. Variable-ratio transmissions are used in all sorts of machinery, especially vehicles. Applications Early uses Early transmissions included the right-angle drives and other gearing in windmills, horse-powered devices, and steam engine, steam-powered devices. Applications of these devices included pumps, mill (grinding), mills and Hoist (device), hoists. Bicycles Bicycles traditionally have used hub gear or Derailleur gear transmissions, but there are other more recent design innovations. Automobiles Since the torque and Horsepower, power output of an interna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
