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Chain Bridge, Washington, D
A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A chain may consist of two or more links. Chains can be classified by their design, which can be dictated by their use: * Those designed for lifting, such as when used with a hoist; for pulling; or for securing, such as with a bicycle lock, have links that are torus shaped, which make the chain flexible in two dimensions (the fixed third dimension being a chain's length). Small chains serving as jewellery are a mostly decorative analogue of such types. * Those designed for transferring power in machines have links designed to mesh with the teeth of the sprockets of the machine, and are flexible in only one dimension. They are known as roller chains, though there are also non-roller chains such as block chains. Two distinct chains can be co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broad Chain Closeup
Broad(s) or The Broad(s) may refer to: People * A slang term for a woman. * Broad (surname), a surname Places * Broad Peak, on the border between Pakistan and China, the 12th highest mountain on Earth * The Broads, a network of mostly navigable rivers and lakes in the English counties of Norfolk and Suffolk, United Kingdom **The Broads include several areas of navigable water known as Broads; the largest is Hickling Broad (see :Norfolk Broads) * The Broads (New Hampshire), a wide portion of Lake Winnipesaukee in Belknap County, New Hampshire, United States * Broad Bay (other) * Broad Canal, East Cambridge, Massachusetts, United States * Broad Channel, a neighborhood in Queens, United States * Broad Crag, a fell in the English Lake District, United Kingdom * Broad Creek (other) * Broad River (other) * Broad Run (other) * Broad Sound (other) * Broad Valley, Graham Land, Antarctica * Broad Water, a salt water lagoon near Tywyn, Wal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carabiner
A carabiner or karabiner () is a specialized type of shackle, a metal loop with a spring-loaded gate used to quickly and reversibly connect components, most notably in safety-critical systems. The word is a shortened form of ''Karabinerhaken'' (or also short ''Karabiner''), a German phrase for a "spring hook" used by a carbine rifleman, or carabinier, to attach his carabin to a belt or bandolier. Use Carabiners are widely used in rope-intensive activities such as climbing, fall arrest systems, arboriculture, caving, sailing, hot air ballooning, rope rescue, construction, industrial rope work, window cleaning, whitewater rescue, and acrobatics. They are predominantly made from both steel and aluminium. Those used in sports tend to be of a lighter weight than those used in commercial applications and rope rescue. Often referred to as carabiner-style or as mini-biners, carabiner keyrings and other light-use clips of similar style and design have also become popular. Most ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain Pumps
The chain pump is type of a water pump in which several circular discs are positioned on an endless chain. One part of the chain dips into the water, and the chain runs through a tube, slightly bigger than the diameter of the discs. As the chain is drawn up the tube, water becomes trapped between the discs and is lifted to and discharged at the top. Chain pumps were used for centuries in the ancient Middle East, Europe, and China. In the Near East and Europe The earliest evidence for this device is in a Babylonian text from about 700 B.C. They were commonly powered by humans or animals. The device then appeared in ancient Egypt from about 200 B.C., featuring a pair of gear-wheels. A version of the chain pump was used in Ancient Greek and Roman, sometimes with pots, or scoops fixed to the chain, which, as they passed over the top pulley, tipped the water out; a 2nd century example is preserved in London. Philo of Byzantium wrote of such a device in the 2nd century B.C.; the hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain Gun
A chain gun is a type of autocannon or machine gun that uses an external source of power to cycle the weapon's action, rather than diverting excess energy from the cartridges' propellant as in a typical automatic firearm, and does so via a continuous loop of chain drive similar to that used on a motorcycle or bicycle. History In 1972, Hughes Helicopters began a company-funded research effort to design a single machine gun to fire the U.S. Army's M50 round. By April 1973, the program had fired test rounds in more powerful WECOM linked ammunition, from a prototype (A model). In January 1975 a model "C" was added, a linkless version for the proposed Advanced Attack Helicopter YAH-64; the helicopter was later adopted as the Hughes Model 77/AH-64A Apache, with the model C (receiving the designation M230 chain gun) as standard armament. In 1976, Hughes Helicopters successfully patented the chain gun, and it has since been further developed into several other system of different c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain Drive
Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle, particularly bicycles and motorcycles. It is also used in a wide variety of machines besides vehicles. Most often, the power is conveyed by a roller chain, known as the drive chain or transmission chain, passing over a sprocket gear, with the teeth of the gear meshing with the holes in the links of the chain. The gear is turned, and this pulls the chain putting mechanical force into the system. Another type of drive chain is the Morse chain, invented by the Morse Chain Company of Ithaca, New York, United States. This has inverted teeth. Sometimes the power is output by simply rotating the chain, which can be used to lift or drag objects. In other situations, a second gear is placed and the power is recovered by attaching shafts or hubs to this gear. Though drive chains are often simple oval loops, they can also go around corners by placi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Chain
A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics. History Obsolete chain designs previously used on bicycles included the block chain, the skip-link chain, and the Simpson lever chain. The first chains were of a simple, bushing-less design. These had inherent reliability problems and a bit more friction (and mechanical efficiency losses) than modern chains. With these limitations in mind, the Nevoigt brothers, of the German Diamant Bicycle Company, designed the roller chain in 1898, which uses bushings. More recently, the "bushingless roller chain" design has superseded the bushed chain. This design incorporates the bearing surface of the bushing into the inner side plate, with each plate creating half of the bushing. This reduces the number of parts needed to assemble ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tie Chain
A tie chain is a neckwear-controlling device. Description Similar to tie clips and tie bars, it is used to hold in place a tie to the underlying shirt front, ensuring that the tie hangs straight. This accessory is composed of two parts, a durable clip and a chain (typically of gold or silver). The clip attaches to a button or attaches to the placket on the shirt A shirt is a cloth garment for the upper body (from the neck to the waist). Originally an undergarment worn exclusively by men, it has become, in American English, a catch-all term for a broad variety of upper-body garments and undergarments. I ... and when properly worn is covered entirely by the tie. The chain is then left to rest across the necktie, keeping the tie secure. References {{Jewellery Types of jewellery Neckties Fashion accessories ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omega Chain
An omega chain or omega necklace is a pseudo-chain made by assembling metallic plates on a wire or woven mesh. The plates give the appearance of links in a chain. The embedded wire provides the strength, so the plates can be designed to please the eye. See also *Persian weave Persian weave is a method of weave used in jewelry and other art forms, using jump rings. The Persian family of weaves is a chainmail Chain mail (properly called mail or maille but usually called chain mail or chainmail) is a type of armo ... References Types of jewellery {{Fashion-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain Of Office
A livery collar or chain of office is a collar or heavy chain, usually of gold, worn as insignia of office or a mark of fealty or other association in Europe from the Middle Ages onwards. One of the oldest and best-known livery collars is the Collar of Esses, which has been in continuous use in England since the 14th century. History Origins Various forms of livery were used in the Middle Ages to denote attachment to a great person by friends, servants, and political supporters. The collar, usually of precious metal, was the grandest form of these, usually given by the person the livery denoted to his closest or most important associates, but should not, in the early period, be seen as separate from the wider phenomenon of livery badges, clothes and other forms. From the collar hung a badge or device indicating the person the livery related to; the most important part of the ensemble for contemporaries. Equally gold collars that had no livery connotations were worn. Livery co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jewelry Chain
Fine metal chains are used in jewellery to encircle parts of the body, namely the neck, wrists and ankles, and they also serve as points to hang decorative charms and pendants. Unlike industrial or chains for other purposes, jewellery chains or ''body chains'' are designed for aesthetic purposes. Material Jewellery chains are typically made from precious metals, mainly gold and silver. Platinum, palladium and steel may also be used. These metals are used because they are not very reactive, keep both their intricate shape and their strength, and require only minimal maintenance to keep their shine. Small lever mechanisms called findings serve as fastenings to enable the chain to be undone and redone. Styles File:Silver Jewellery Chain.jpg, Trace: Often the simplest style of chain. The links in a trace chain are typically uniform in breadth and thickness, and can be very delicate, especially in finer widths. File:Rolo chain.jpg, Rolo: The links of a rolo chain are usually ide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belly Chain
Belly may refer to: Anatomy * The abdomen, the part of the body between the pelvis and the thorax; or the stomach ** A beer belly, an overhang of fat above the waist, presumed to be caused by regular beer drinking ** Belly dance * The fleshy, central part of a skeletal muscle (also known as a "muscle belly") People * The nickname of the England cricketer Ian Bell * Leon-August-Adolphe Belly, a 19th-century French painter * Pierre Belly (1738–1814), Louisiana planter, lawyer and judge * Belly Mujinga (1972/3–2020), Congolese-born transport worker who died in London from COVID-19 Places * Belly River, river in Alberta, Canada Music * Belly (band), American alternative rock band * Belly (rapper) (born 1984), Canadian rap artist of Palestinian origin * Lead Belly (1889–1949), real name Huddie William Ledbetter, American folk and blues musician * The surface of a sound board, of a string instrument * A kind of steelpan Other * Belly (loyalty program), a digital loyalty progr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Great Chain Today
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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