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Wheel Chock
Wheel chocks (or chocks) are wedges of sturdy material placed closely against a vehicle's wheels to prevent accidental movement. Chocks are placed for safety in addition to setting the brakes. The bottom surface is sometimes coated in rubber to enhance grip with the ground. For ease of removal, a rope may be tied to the chock or a set of two chocks. One edge of the wedge has a concave profile to contour to the wheel and increase the force necessary to overrun the chock. Most commonly, chocks are seen on aircraft and train cars. Automobiles usually have parking brakes on the rear wheels. If the rear axle is jacked off the ground with only the parking brake set, the vehicle may roll on the front wheels and fall. Chocking the front wheels prevents this mishap. Motorcycle and bicycle chocks are bifurcated and fit around the wheel, supporting the bike and preventing its movement. The mining industry uses wheel chocks to protect lubrication trucks and heavy maintenance vehicles fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chocks
Chock or Chocks may refer to: Devices for preventing movement * Wheel chock, tool to prevent accidental movement * Chock (climbing), anchor * Chock, component of a Block (sailing), sailing block Other uses * Chock (surname) * Chock (TV series), ''Chock'' (TV series), a Swedish horror television series * Chock, a Swedish-language edition of Chill (role-playing game), Chill * Chocks, a children's multivitamin product made by Miles Laboratories See also * Choc (other) * Chok (other) * "''Chocky''", short story * Chock full o'Nuts, coffee brand * Buffer stop#Wheel stop, Railway wheel stop {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Airways
British Airways plc (BA) is the flag carrier of the United Kingdom. It is headquartered in London, England, near its main Airline hub, hub at Heathrow Airport. The airline is the second largest UK-based carrier, based on fleet size and passengers carried, behind easyJet. In January 2011, BA merged with Iberia (airline), Iberia, creating the International Airlines Group (IAG), a holding company registered in Madrid, Spain. IAG is the world's third-largest airline group in terms of annual revenue and the second-largest in Europe. It is listed on the London Stock Exchange and in the FTSE 100 Index. British Airways is the first passenger airline to have generated more than US$1 billion on a single air route in a year (from 1 April 2017, to 31 March 2018, on the London to New York Air Route, New York-JFK – London-Heathrow route). BA was created in 1974 after a British Airways Board was established by the British government to manage the two nationalised airline corporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buffer Stop
A buffer stop, bumper, bumping post, bumper block or stopblock (US), is a device to prevent Railroad car, railway vehicles from going past the end of a physical section of Track (rail transport), track. The design of the buffer stop is dependent, in part, on the kind of couplings that the railway uses, since the Railway coupling, coupling gear is the first part of the vehicle that the buffer stop touches. The term "buffer stop" is of Italian origin, since railways in Italy principally use Buffers and chain coupler, buffer-and-screw couplings between vehicles. Types Several different types of buffer stop have been developed. They differ depending on the type of coupler used and on the intended application. * Buffer stops with anticlimbers. These are particularly important for passenger railway applications, because the anticlimbers reduce the likelihood of Telescoping (railway), telescoping of the Passenger car (rail), railroad cars during a head-on impact. * Buffer stops for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waste Container
A waste container, also known as a dustbin, rubbish bin, trash can, garbage can, wastepaper basket, and wastebasket, among other names, is a type of container intended to store waste that is usually made out of metal or plastic. The words "rubbish", "basket" and "bin" are more common in British English usage; "trash" and "can" are more common in American English usage. "Garbage" may refer to food waste specifically (when distinguished from "trash") or to municipal solid waste in general. The word " dumpster" (from a genericised trademark) refers to a large outdoor waste container for garbage collectors to pick up the contents. Designs Trash cans are typically made of steel or plastic (most commonly polyethylene), although some are made of wood or wicker. A pedal bin is a container with a lid operated by a foot pedal. Lillian Moller Gilbreth, an industrial engineer and efficiency expert, invented the pedal bin in the 1920s for the disposal of kitchen waste. The foot ped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kunsan Air Base
Kunsan K-8 Air Base () is a United States Air Force base located at Gunsan Airport, on the west coast of the Korean peninsula bordered by the Yellow Sea. It is located in the town of Gunsan (also romanized as Kunsan), about south of Seoul. Kunsan Air Base is the home of the 8th Fighter Wing, "The Wolf Pack," assigned to the Pacific Air Forces Seventh Air Force and the 38th Fighter Group of the Republic of Korea Air Force. About 45 F-16 aircraft are stationed at the base. It is one of two major Air Force installations operated by the United States Forces Korea, the other being Osan Air Base. History The history of Kunsan Air Base dates back to 1938, when Japanese forces occupying Korea built a base near Kunsan for fighter-interceptor aircraft. The United States first used the base in 1945, but on a very small scale. From 1945 to 1950, the United States Army, Army and later the United States Air Force, Air Force intermittently operated small detachments from Kunsan, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F-117 Nighthawk
The Lockheed F-117 Nighthawk is an officially retired American single-seat, subsonic, twin-engined, stealth attack aircraft developed by Lockheed's secretive Skunk Works division and operated by the United States Air Force (USAF). It was the first operational aircraft to be designed with stealth technology. Work on what would become the F-117 commenced in the 1970s as a means of countering increasingly sophisticated Soviet surface-to-air missiles (SAMs). During 1976, the Defense Advanced Research Projects Agency (DARPA) issued Lockheed a contract to produce the '' Have Blue'' technology demonstrator, the test data from which validated the concept. On 1 November 1978, Lockheed decided to proceed with the F-117 development program. Five prototypes were produced; the first of which performed its maiden flight in 1981 at Groom Lake, Nevada. The first production F-117 was delivered in 1982, and its initial operating capability was achieved in October 1983. All aircraft were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airman
An airman is a member of an air force or air arm of a nation's armed forces. In certain air forces, it can also refer to a specific enlisted rank. An airman can also be referred to as a soldier in other definitions. As a military rank designation, the male form of address also applies to women. In civilian aviation usage, the term airman is analogous to the term "sailor" in nautical usage. In the American Federal Aviation Administration usage, an airman is any holder of an airman's certificate, male or female. This certificate is issued to those who qualify for it by the Federal Aviation Administration Airmen Certification Branch. New Zealand "Airman" was a former general term used to describe any service members of the Royal New Zealand Air Force. Following the Royal Air Force, the RNZAF now refers to its personnel as “aviators.” United Kingdom "Airman" and "airwoman" were formerly general terms used to describe members of the Royal Air Force, particularly other ranks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airbus A321
The Airbus A321 is a member of the Airbus A320 family of short to medium range, Narrow-body aircraft, narrow-body, commercial passenger Twinjet, twin engine jet airliners; it carries 185 to 236 passengers. It has a stretched fuselage which was the first derivative of the baseline A320 and entered service in 1994, about six years after the original A320. The aircraft shares a common type rating with all other Airbus A320-family variants, allowing A320-family pilots to fly the aircraft without the need for further training. In December 2010, Airbus announced a new generation of the A320 family, the Airbus A320neo family, A320neo (new engine option). The similarly lengthened fuselage A321neo variant offers new, more efficient engines, combined with airframe improvements and the addition of wingtip device, winglets (called ''Sharklets'' by Airbus). The aircraft delivers fuel savings of up to 15%. The A321neo carries up to 244 passengers, with a maximum range of for the long-range v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactured material in the world. When aggregate is mixed with dry Portland cement and water, the mixture forms a fluid slurry that can be poured and molded into shape. The cement reacts with the water through a process called hydration, which hardens it after several hours to form a solid matrix that binds the materials together into a durable stone-like material with various uses. This time allows concrete to not only be cast in forms, but also to have a variety of tooled processes performed. The hydration process is exothermic, which means that ambient temperature plays a significant role in how long it takes concrete to set. Often, additives (such as pozzolans or superplasticizers) are included in the mixture to improve the physical prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel
A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle Bearing (mechanical), bearing. The wheel is one of the key components of the wheel and axle which is one of the Simple machine, six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples can be found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. In order for a wheel to rotate, a Moment (physics), moment must be applied to the wheel about its axis, either by gravity or by the application of another external force or torque. Terminology The English word '':wikt:wheel, wheel'' comes from the Old English word , from Proto-Germanic language, Proto-Germanic , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parking Space
A parking space, parking place or parking spot is a location that is designated for parking, either paved or unpaved. It can be in a parking garage, in a parking lot or on a city street. The space may be delineated by road surface markings. The automobile fits inside the space, either by parallel parking, perpendicular parking or angled parking. If in tandem parking. Whoever pulled in the tandem parking stall first is now technically in the back. The second car, is now in the front since they have to leave first. Depending on the location of the parking space, the time allowed to park may be fixed by regulation, and a fee may be required to use the parking space. It may be designated for free parking. When the demand for spaces outstrips supply, vehicles may overspill parking, overspill park onto the sidewalk, grass verges and other places which were not designed for the purpose. Patterns For most motorised vehicles, there are three commonly used arrangements of parking spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occupational Safety And Health Administration
The Occupational Safety and Health Administration (OSHA; ) is a regulatory agency of the United States Department of Labor that originally had federal visitorial powers to inspect and examine workplaces. The United States Congress established the agency under the Occupational Safety and Health Act (OSH Act), which President Richard Nixon, Richard M. Nixon signed into law on December 29, 1970. OSHA's mission is to "assure safe and healthy working conditions for working men and women by setting and enforcing standards and by providing training, outreach, education, and assistance." The agency is also charged with enforcing a variety of whistleblower statutes and regulations. OSHA's workplace safety inspections have been shown to reduce injury rates and injury costs without adverse effects on employment, sales, credit ratings, or firm survival. History The Bureau of Labor Standards of the Department of Labor has worked on some work safety issues since its creation in 1934. Economi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
