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Chain Saw
A chainsaw (or chain saw) is a portable handheld power saw that cuts with a set of teeth attached to a rotating chain driven along a guide bar. Modern chainsaws are typically gasoline or electric and are used in activities such as tree felling, limbing, bucking, pruning, cutting firebreaks in wildland fire suppression, harvesting of firewood, for use in chainsaw art and chainsaw mills, for cutting concrete, and cutting ice. Precursors to modern chainsaws were first used in surgery, with patents for wood chainsaws beginning in the late 19th century. A chainsaw comprises an engine, a drive mechanism, a guide bar, a cutting chain, a tensioning mechanism, and safety features. Various safety practices and working techniques are used with chainsaws. History In surgery A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (–1785) by two Scottish doctors, John Aitken and James Jeffray, for symp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chainsaw
A chainsaw (or chain saw) is a portable handheld power saw, power saw that cuts with a set of teeth attached to a rotating chain driven along a guide bar. Modern chainsaws are typically gasoline or electric and are used in activities such as tree felling, limbing, Log bucking, bucking, pruning, cutting firebreaks in wildland fire suppression, harvesting of Wood fuel#Firewood, firewood, for use in Chainsaw carving, chainsaw art and chainsaw mills, for cutting concrete, and cutting ice. Precursors to modern chainsaws were first used in surgery, with patents for wood chainsaws beginning in the late 19th century. A chainsaw comprises an engine, a drive mechanism, a guide bar, a cutting chain, a tensioning mechanism, and safety features. Various safety practices and working techniques are used with chainsaws. History In surgery A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (–1785) by two Scot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusee (horology)
A fusee (from the French ''fusée'', wire wound around a spindle) is a cone (geometry), cone-shaped pulley with a helical groove around it, wound with a cord or chain attached to the mainspring Barrel (horology), barrel of antique mechanical watches and clocks. It was used from the 15th century to the early 20th century to improve timekeeping by equalizing the uneven pull of the mainspring as it ran down. The watch and clock historian Granville Hugh Baillie stated of the fusee, "Perhaps no problem in mechanics has ever been solved so simply and so perfectly." History The origin of the fusee is not known. Many sources erroneously credit clockmaker Jacob Zech of Prague with inventing it around 1525. The earliest definitely dated fusee clock was made by Zech in 1525, but the fusee actually appeared earlier, with the first spring driven clocks in the 15th century., p.127-128, p.121 The idea probably did not originate with clockmakers, since the earliest known example is in a cross ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Buford Cox
Joseph Buford Cox (1905 – August 10, 2002), was an American inventor and businessman. He invented what is now known as the chipper type chain for chain saws. He based his design on the C-shaped jaws of the larva of the timberman beetle. Cox watched the destructive larvae of the timber beetle (Ergates spiculatus) for many hours. The beetle's cutting action was left and right, side to side, rather than scratching or burrowing straight ahead. Cox adapted this concept to a new chain saw of his own design put into production during the late 1940s. Joseph and his wife, Alice, founded "The Oregon Saw Chain Co." in 1947. Cox later started a small casting company called OMARK, now known as "Omark Industries". In time, Oregon Saw Chain became a subsidiary of Omark Industries which was in turn acquired in 1985 by Blount, Inc., of Montgomery, Alabama. Blount merged Mergers and acquisitions (M&A) are business transactions in which the ownership of a company, business organization, or one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festool
Festool is a brand of high-end power tools from Germany. Festool Group GmbH & Co. KG is based in Wendlingen and is a subsidiary of the TTS Tooltechnic Systems holding company. It is known for its system-based approach to power tools and its focus on dust extractors. The company was founded by Gottlieb Stoll and Albert Fezer in 1925 under the name ''Fezer & Stoll''. The company manufactured the world's first portable chainsaw in 1927. The company's name was shortened to ''Festo'' in 1933. Festo founded Festo Tooltechnic in 1992, and the power tool division was spun off into an independent company, Festool, in 2000. The company remains privately owned by the family of co-founder Gottlieb Stoll. As of October 2017, Festool operates subsidiaries in 26 countries including the United Kingdom, the United States, Canada, France, the Netherlands, and Russia. In late 2017, it set up its first Asian subsidiary in South Korea. Festool products are primarily manufactured in Neidlingen ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festo
Festo is a German automation company based in Esslingen am Neckar, Germany. Festo produces and sells pneumatics, pneumatic and electrical control systems and drive technology for factories and Process automation system, process automation. Festo Didactic also offers Industrial engineering, industrial education and consultation services and is one of the sponsors and partners of the WorldSkills#Manufacturing and Engineering Technology, WorldSkills Mechatronics Competitions. Sales subsidiaries, distribution centres and factories of Festo are located in 61 countries worldwide. The company was named after its founders Albert Fezer and Gottlieb Stoll. Animal robots Festo is known for making moving robots that move like animals such as the seagull-like SmartBird, jellyfish, butterflies and the BionicKangaroo. In 2018 they also added a flying fox and a rolling spider to the list. Festo calls their Bionic Flying Fox an “ultra-lightweight flying object with intelligent kinematics.� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ripper Chainsaw
Ripper or The Ripper may refer to: People * Ripper (surname) * Paul Burchill, ring name "The Ripper", a professional wrestler based on Jack the Ripper * Kirk Hammett, nicknamed "The Ripper", the lead guitarist in the heavy metal band Metallica * Jack the Ripper, a pseudonym for an unidentified serial killer (or killers) active in London in the latter half of 1888 * Ripper Jayanandan (born 1968), Indian serial killer * Tim "Ripper" Owens, a heavy metal singer * Psicosis II, a Mexican ''Luchador enmascarado'' who was renamed Psyco Ripper and then Ripper * Terry "The Ripper" Rivera, a professional wrestler from All-Star Wrestling * Danny Rolling, serial killer known as the "Gainesville Ripper" * Peter Sutcliffe, known as the Yorkshire Ripper, a serial killer active in Yorkshire from 1975–1980 * Brandon Vedas, nicknamed "Ripper", a man who died of a drug overdose on IRC Arts and entertainment Fictional characters * Ripper (G.I. Joe), in the G.I. Joe universe * "Ripper", the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chainsaw In Use To Cut Branches - Tokyo Area - 2018 10 2
A chainsaw (or chain saw) is a portable handheld power saw that cuts with a set of teeth attached to a rotating chain driven along a guide bar. Modern chainsaws are typically gasoline or electric and are used in activities such as tree felling, limbing, bucking, pruning, cutting firebreaks in wildland fire suppression, harvesting of firewood, for use in chainsaw art and chainsaw mills, for cutting concrete, and cutting ice. Precursors to modern chainsaws were first used in surgery, with patents for wood chainsaws beginning in the late 19th century. A chainsaw comprises an engine, a drive mechanism, a guide bar, a cutting chain, a tensioning mechanism, and safety features. Various safety practices and working techniques are used with chainsaws. History In surgery A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (–1785) by two Scottish doctors, John Aitken and James Jeffray, for symphysioto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteotome
An osteotome is an instrument used for cutting or preparing bone. Osteotomes are similar to a chisel but bevelled on both sides. They are used today in plastic surgery, orthopedic surgery and dental implantation. The chain osteotome, originally referred to simply as the osteotome, was invented by the German physician Bernhard Heine in 1830. This device is essentially a small chainsaw. See also *Instruments used in general surgery There are many different Surgery, surgical specialties, some of which require specific kinds of Surgical instrument, surgical instruments to perform. General surgery is a specialty focused on the abdomen; the Thyroid, thyroid gland; Disease, dis ... References {{Surgical instruments Orthopaedic instruments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernhard Heine
Bernhard Heine (August 20, 1800, Schramberg (Black Forest) – July 31, 1846, Glockenthal near Thun (Switzerland)) was a German physician, bone specialist and the inventor of the osteotome, a medical tool for cutting bones. Apprenticeship in Würzburg Bernhard Heine was born on August 20, 1800, as the son of a Tanning (leather), tanner in Schramberg. At the age of ten (according to other references, thirteen) years he was apprenticed to his uncle Johann Georg Heine in Würzburg as an orthopaedic mechanic. Without any enrolment he later attended lectures in medicine at the University of Würzburg. After a number of journeys he took over his own department in his uncle's orthopaedic institute. When Johann Georg moved to the Netherlands in 1829, Bernhard - together with his cousin Joseph Heine - became the head of the Würzburg institution. In 1837 Bernhard Heine married his cousin (Johann Georg's daughter) Anna Heine (born 1801). Inventing the osteotome In 1830, after years o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthopaedist
Orthopedic surgery or orthopedics ( alternative spelling orthopaedics) is the branch of surgery concerned with conditions involving the musculoskeletal system. Orthopedic surgeons use both surgical and nonsurgical means to treat musculoskeletal trauma, spine diseases, sports injuries, degenerative diseases, infections, tumors and congenital disorders. Etymology Nicholas Andry coined the word in French as ', derived from the Ancient Greek words ("correct", "straight") and ("child"), and published ''Orthopedie'' (translated as ''Orthopædia: Or the Art of Correcting and Preventing Deformities in Children'') in 1741. The word was assimilated into English as ''orthopædics''; the ligature ''æ'' was common in that era for ''ae'' in Greek- and Latin-based words. As the name implies, the discipline was initially developed with attention to children, but the correction of spinal and bone deformities in all stages of life eventually became the cornerstone of orthopedic practi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
