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Piston (other)
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A piston is an engineering component of engines and pumps. Piston(s) may also refer to: Science and technology * Piston (optics) * Piston (subcellular structure) * Piston valve * Fire piston, an ancient device for kindling fire * Gas-operated reloading, sometimes referred to as a gas piston. * Piston, the working name for the Steam Machine gaming platform People and groups * Pist.On, an American heavy metal band * Detroit Pistons, an American basketball team * Steinbach Pistons, a Canadian ice hockey team * Walter Piston, an American composer * Web Piston, a software and web hosting company Other * Piston (music), a type of oboe * Piston controls the combination action on a pipe organ The pipe organ is a musical instrument that produces sound by driving pressurized air (called ''wind'') through the organ pipes selected from a keyboard. Because each pipe produces a single pitch, the pipes are provided in sets called ''ranks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston
A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder. __TOC__ Piston engines Internal combustion engines An internal combustion engine is acted upon by the pressure of the expanding combustion gases in the combustion chamber space at the top of the cylinder. This force then acts downwards through the connecting rod and onto the crankshaft. The connecting rod is att ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston (optics)
In optics, piston is the mean value of a wavefront or phase profile across the pupil of an optical system. The piston coefficient is typically expressed in wavelengths of light at a particular wavelength. Its main use is in curve-fitting wavefronts with Cartesian polynomials or Zernike polynomials. However, similar to a real engine piston moving up and down in its cylinder, optical piston values can be changed to bias the wavefront phase mean value as desired. As phase values can only vary from zero to 2π, then repeat in either direction (termed phase wrapping), changing the piston coefficient changes the zero phase value contour locations across the wavefront. This property is critical to the operation of phase-measuring interferometers, which give not only the magnitude but also the sign (convexity or concavity) of a wavefront under test. Piston is physically created in the interferometer by piezoelectric actuators that translate the Fizeau interferometer reference surfac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston (subcellular Structure)
A piston (also known as a dart, prod, or tentacle) is a complex contractile organelle found in some dinoflagellates, namely the ''Erythropsidinium'' and ''Greuetodinium'' genera of the family Warnowiaceae. This group is also well known for possessing other unusually complex subcellular structures such as the ocelloid and nematocyst (dinoflagellate), nematocyst. Observations of ''Erythropsidinium'' samples reveal that the length of the piston is highly variable across specimens. The piston is known to be capable of repetitive and dramatic contractile motion; although its function is unknown, roles in locomotion, prey capture, and defense have been suggested. References Organelles {{microbiology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston Valve
A "piston valve" is a device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder. Examples of piston valves are: * The valves used in many brass instruments * The valves used in pneumatic cannons * The valves used in many stationary steam engines and steam locomotives Brass instruments Cylindrical piston valves called Périnet valves (after their inventor François Périnet) are used to change the length of tube in the playing of most brass instruments, particularly the trumpet-like members of the family (cornet, flugelhorn, saxhorn, etc.). Other brass instruments use rotary valves, notably the orchestral horns and many tuba models, but also a number of rotary-valved variants of those brass instruments which more commonly employ piston valves. The first piston-valved musical instruments were developed just after the start of the 19th century. The Stölzel valve (invented by Heinrich Stölzel in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Piston
A fire piston, sometimes called a fire syringe or a slam rod fire starter, is a device of ancient Southeast Asian origin which is used to kindle fire. It uses the principle of the heating of a gas (in this case air) by rapid and Adiabatic process, adiabatic compression to ignite a piece of tinder, which is then used to set light to kindling. Description and use A fire piston consists of a hollow Pneumatic cylinder, cylinder sealed at one end and open at the other. Sizes range in length from 3 to 6 inches (7.5 to 15 cm) with a bore about 0.25 inch (6–7 mm) in diameter, to 10 to 14 inches (25 to 35 cm) with a bore about 0.5 inch (14 mm) in diameter. A piston with an airtight circular Seal (mechanical), seal is fitted into the cylinder. A string packing lubricated with water or rubber gasket lubricated with grease is used to create an air-tight but slippery seal. At the end of the piston is made a small cavity where tinder can be inserted without it being crus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas-operated Reloading
Gas-operation is a system of operation used to provide energy to operate locked breech, autoloading firearms. In gas-operation, a portion of high-pressure gas from the cartridge being fired is used to power a mechanism to dispose of the spent case and insert a new cartridge into the chamber. Energy from the gas is harnessed through either a port in the barrel or a trap at the muzzle. This high-pressure gas impinges on a surface such as a piston head to provide motion for unlocking of the action, extraction of the spent case, ejection, cocking of the hammer or striker, chambering of a fresh cartridge, and locking of the action. History The first mention of using a gas piston in a single-shot breech-loading rifle comes from 1856, by the German Edward Lindner who patented his invention in the United States and Britain. In 1866, Englishman William Curtis filed the first patent on a gas-operated repeating rifle, but subsequently failed to develop that idea further. Between 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Machine (hardware Platform)
Steam Machine was a series of prebuilt small form factor gaming computers designed to operate Valve's SteamOS to provide a game console-like experience. Several computer vendors were engaged with Valve to develop their own versions of Steam Machines for retail, offering additional options atop Valve's requirements such as dual-booting options with Microsoft Windows and the ability to upgrade the computer. To support the Steam Machine and SteamOS, Valve released the Steam Controller, a customizable game controller with touchpad-based haptic feedback, and the Steam Link, a device that allows consumers with Steam software to stream content to a monitor. Following a two-year testing period, Steam Machines and its related hardware were released on November 10, 2015. In 2018, many Steam Machines models were no longer offered on the Steam store. History Steam, a large digital store-front for video games supporting many third-party developers and publishers, was developed by Valve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit Pistons
The Detroit Pistons are an American professional basketball team based in Detroit. The Pistons compete in the National Basketball Association (NBA) as a member of the league's Eastern Conference Central Division and play their home games at Little Caesars Arena, located in Midtown. Founded in Fort Wayne, Indiana as a semi-professional company basketball team called the Fort Wayne Zollner Pistons in 1937, they would turn pro in 1941 as a member of the National Basketball League (NBL), where they won two NBL championships: in 1944 and 1945. The Pistons later joined the Basketball Association of America (BAA) in 1948. The NBL and BAA merged to become the NBA in 1949, and the Pistons became part of the merged league. In 1957, the franchise moved to Detroit. The Pistons have won three NBA championships: in 1989, 1990 and 2004. Franchise history 1937–1957: Fort Wayne (Zollner) Pistons Fred Zollner owned the Zollner Corporation, a foundry that manufactured pistons, primarily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steinbach Pistons
The Steinbach Pistons are a Junior "A" ice hockey team from Steinbach, Manitoba, Canada. They are members of the Manitoba Junior Hockey League, which is a member of the Canadian Junior Hockey League. History Southeast Thunderbirds/T-Birds/Blades The MJHL granted an expansion team to the Southeast Tribal Council, a group of First Nation bands in southeastern Manitoba, to begin play in the 1988–89 season. The team was known as the Southeast Thunderbirds and played out of the Notre Dame Arena in Winnipeg. The team was renamed the Southeast Blades in 1992. After taking a leave of absence for the 1996–97 season, the Blades moved northeast of Winnipeg to Sagkeeng First Nation. The Blades played ten seasons in Sagkeeng, the most successful being the 2002–03 season when they advanced to the Turnbull Cup finals which they lost to the OCN Blizzard. Beausejour Blades The Beausejour Blades were formed in 2007 following the sale and relocation of the team to the Sun Gro Centre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Piston
Walter Hamor Piston, Jr. (January 20, 1894 – November 12, 1976), was an American composer of classical music, music theorist, and professor of music at Harvard University. Life Piston was born in Rockland, Maine at 15 Ocean Street to Walter Hamor Piston, a bookkeeper, and Leona Stover. He was the second of four children. Although his family was mainly of English origin, his paternal grandfather was a sailor named Antonio Pistone, who changed his name to Anthony Piston when he came to Maine from Genoa, Italy. In 1905 the composer's father, Walter Piston Sr, moved with his family to Boston, Massachusetts. Walter Jr first trained as an engineer at the Mechanical Arts High School in Boston, but was artistically inclined. After graduating in 1912, he enrolled in the Massachusetts Normal Art School, where he completed a four-year program in fine art in 1916. During the 1910s, Piston made a living playing piano and violin in dance bands and later playing violin in orchestras led by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Web Piston
Web most often refers to: * Spider web, a silken structure created by the animal * World Wide Web or the Web, an Internet-based hypertext system Web, WEB, or the Web may also refer to: Computing * WEB, a literate programming system created by Donald Knuth * GNOME Web, a Web browser * Web.com, a web-design company * Webs (web hosting), a Web hosting and website building service Engineering * Web (manufacturing), continuous sheets of material passed over rollers ** Web, a roll of paper in offset printing * Web, the vertical element of an I-beam or a rail profile * Web, the interior beams of a truss Films * ''Web'' (2013 film), a documentary * ''Webs'' (film), a 2003 science-fiction movie * ''The Web'' (film), a 1947 film noir * Charlotte's Web (2006 film) Literature * ''Web'' (comics), a MLJ comicbook character (created 1942) * ''Web'' (novel), by John Wyndham (1979) * The Web (series), a science fiction series (1997–1999) * World English Bible, a public-domain Bible ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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