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Cornish Engine Valve Gear
Valve gear opens and closes valves in the correct order. In rotating engines valve timings can be driven by eccentrics or cranks, but in non-rotative beam engines these options are not available. In the Cornish engine valves are driven either manually or through ‘plug rods’ and tappets driven from the beam. This permits the insertions of delays at various points in the cycle, allowing a Cornish Engine to vary from one stroke in ten minutes, to ten or more strokes in one minute, but also leads to some less familiar components when compared with rotative engines. Valve and valve gear position and linkage Cornish Engines are large, even the exhaust valve on the Cruquius engine is 26 inches in diameter. To limit pipework and linkages it makes sense to place the 'driving position' adjacent to the cylinder. The valves are controlled from three horizontal rods - or arbors - mounted in a frame. These have handles to rock them backwards and forwards operating the valves. The thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornish Engines, Crofton - Geograph
Cornish is the adjective and demonym associated with Cornwall, the most southwesterly part of the United Kingdom. It may refer to: * Cornish language, a Brittonic Southwestern Celtic language of the Indo-European language family, spoken in Cornwall * Cornish people ** Cornish Americans ** Cornish Australians ** Cornish Canadians ** Cornish diaspora * Culture of Cornwall Cornish may also refer to: Places United States * Cornish, Colorado * Cornish, Maine, a town ** Cornish (CDP), Maine, the primary village * Cornish, New Hampshire * Cornish, Oklahoma * Cornish, Utah * Cornish Township, Aitkin County, Minnesota * Cornish Township, Sibley County, Minnesota People * Cornish (surname) Animals and plants * Cornish Aromatic, apple cultivar * Cornish chicken * Cornish chough (''Pyrrhocorax pyrrhocorax''), a species in the family Corvidae * Cornish game hen * Cornish Rex, a breed of cat * Lucas Terrier, a Cornish breed of dog Sports * Cornish Wrestling, the ancient martial art, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cataract (beam Engine)
A cataract was a speed governing device used for early single-acting beam engines, particularly atmospheric engines and Cornish engines. It was a kind of water clock. The cataract is distinctly different from the centrifugal governor, in that it does not control the speed of the engine's stroke, but rather the timing between strokes. Operation The typical installation of a house-built beam engine spanned four floors. The cylinder and the engine driver's usual working position were located in the 'bottom chamber', approximately at ground level. Above this were the 'middle chamber', with the cylinder top cover and 'top nozzle' (the upper valve chest), and above that the 'top chamber' or beam chamber. The cataracts were located in the lowest part of the engine house, in a chamber below the bottom chamber, along with the exhaust pipe. This space was awkward to access and not visited in normal operation. The valve gear (or 'working gear') of a Newcomen or Cornish engine is base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam Engines
Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized group of electrically charged particles ***Cathode ray, or electron beam or e-beam, streams of electrons observed in discharge tubes ***X-ray beam, a penetrating form of high-energy electromagnetic radiation ** Molecular beam, a beam of particles moving at approximately equal velocities Arts, entertainment and media * Beam (music), a connection line in musical notation * Beam, to transport matter using the Transporter in the ''Star Trek'' fictional universe * Beam (rapper), American hip hop artist * BEAM.TV, an online digital delivery and content management platform * BEAM Channel 31, a Philippines television network * Beam (website), later Mixer, a former video game live streaming platform * BeamNG.drive, an open-world vehicle simulation v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornish Engines
Cornish is the adjective and demonym associated with Cornwall, the most southwesterly part of the United Kingdom. It may refer to: * Cornish language, a Brittonic Southwestern Celtic language of the Indo-European language family, spoken in Cornwall * Cornish people ** Cornish Americans ** Cornish Australians ** Cornish Canadians ** Cornish diaspora * Culture of Cornwall Cornish may also refer to: Places United States * Cornish, Colorado * Cornish, Maine, a town ** Cornish (CDP), Maine, the primary village * Cornish, New Hampshire * Cornish, Oklahoma * Cornish, Utah * Cornish Township, Aitkin County, Minnesota * Cornish Township, Sibley County, Minnesota People * Cornish (surname) Animals and plants * Cornish Aromatic, apple cultivar * Cornish chicken * Cornish chough (''Pyrrhocorax pyrrhocorax''), a species in the family Corvidae * Cornish game hen * Cornish Rex, a breed of cat * Lucas Terrier, a Cornish breed of dog Sports * Cornish Wrestling, the ancient martial art, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Engines
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term ''steam engine'' can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine. Although steam-driven devices were known as early as the aeolipile in the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Bull
Edward Bull (c.1759–1798) was an English engineer, noted for a modified type of steam engine known as the Bull engine. Working with Richard Trevithick, many of these were installed in mines in Cornwall. Life Bull was born about 1759. From 1779 he worked for Boulton and Watt at Bedworth Colliery in Warwickshire; Watt steam engines were used to pump water from mines. In 1781 he moved to Cornwall to install steam engines for the company."Edward Bull" Grace's Guide. Retrieved 11 January 2020."Richard Trevithick: Pumping the mines" Engineering Timelines. Retrieved 11 January 2020. From 1791 he worked independently. He designed an engine in whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum De Cruquius
The Museum De Cruquius (or Cruquiusmuseum) occupies the old Cruquius steam pumping station in Cruquius, the Netherlands. It derives its name from Nicolaas Kruik (1678–1754), a Dutch land-surveyor and one of many promoters of a plan to pump the Haarlemmermeer (Haarlem lake) dry. Like many well-educated men of his time, he latinized his name to Nicolaus Samuel Cruquius. During his lifetime the issue of the Haarlem Lake and how to pump it dry was international news, as the following excerpt from the Virginia Gazette on 31 May 1751 illustrates: :"''By a private letter from Rotterdam, we are told, that the Dutch Engineers, in their Plan for draining the lake of Haerlem, proposed to employ 150 mills for three Years, and had computed the Expence at a Million and Half of Florins, but that a German, who had been long employed in the Mines of Hungary and Hartz, had proposed to drain it with 50 machines, in 15 months, at a far less Expence; and that he has been ordered to erect one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASME
The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, an advocacy organization, a provider of training and education, and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global. ASME has over 85,000 members in more than 135 countries worldwide. ASME was founded in 1880 by Alexander Lyman Holley, Henry Rossiter Worthington, John Edison Sweet and Matthias N. Forney in response to numerous steam boiler pressure vessel failures. Kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maudslay Engine (3016555263)
Henry Maudslay ( pronunciation and spelling) (22 August 1771 – 14 February 1831) was an English machine tool innovator, tool and die maker, and inventor. He is considered a founding father of machine tool technology. His inventions were an important foundation for the Industrial Revolution. Maudslay's invention of a metal lathe to cut metal, circa 1800, enabled the manufacture of standard screw thread sizes. Standard screw thread sizes allowed interchangeable parts and the development of mass production. Early life Maudslay was the fifth of seven children of Henry Maudslay, a wheelwright in the Royal Engineers, and Margaret (''nee'' Whitaker), the young widow of Joseph Laundy. His father was wounded in action and so in 1756 became an 'artificer' at the Royal Arsenal, Woolwich (then in Kent), where he remained until 1776 and died in 1780. The family lived in an alley that no longer exists, off Beresford Square, between Powis Street and Beresford Street. Career Maudslay beg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battersea 55 Inch Cornish Engine Valve Gear With Annotations
Battersea is a large district in south London, part of the London Borough of Wandsworth, England. It is centred southwest of Charing Cross and extends along the south bank of the Tideway, River Thames. It includes the Battersea Park. History Battersea is mentioned in the few surviving Anglo-Saxon England, Anglo-Saxon geographical accounts as ''Badrices īeg'' meaning "Badric's Island" and later "Patrisey". As with many former parishes beside tidal flood plains the lowest land was reclaimed for agriculture by draining marshland and building culverts for streams. Alongside this was the River Heathwall, Heathwall tide mill in the north-east with a very long mill pond regularly draining and filling to the south. The settlement appears in the Domesday Book of 1086 as ''Patricesy'', a vast manor held by Westminster Abbey, St Peter's Abbey, Westminster. Its ''Domesday'' Assets were: 18 hide (unit), hides and 17 ploughlands of cultivated land; 7 gristmill, mills worth £42 9s 8d pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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