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Saltford Brass Mill
Saltford Brass Mill is a brass mill on the River Avon at Saltford, Somerset, England. It dates from the 1720s is listed as Grade II* and is also a Scheduled Ancient Monument. There was a watermill on the site at the time of the Domesday Book and it is the last surviving of over 30 mills which were once on this stretch of the Avon. Local brass making was initiated in Bristol around 1700 by the family of Abraham Darby who later moved upstream because of the better water supply at Saltford and Keynsham. The brass was made from Cornish ores refined at Crew's Hole and then transported via the river. These were mixed with calamine from the Mendip Hills to make calamine brass. This changed as processes improved and local copper smelting was replaced by supplies from Swansea. By the 1850s zinc metal was used instead of calamine, using a process introduced by William Champion, who lived nearby. The site includes a battery mill which was used for hollowing out brass sheet to make pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saltford
Saltford is a large English village and civil parish in the Bath and North East Somerset unitary authority, Somerset. It lies between the cities of Bristol and Bath, and adjoins Keynsham on the same route. Saltford Manor House (built about 1160) claims to be the oldest continuously occupied dwelling in England. Amenities The village lies on the A4 road and on the River Avon, to which the Saltford and Kelston locks provide access. The low-lying area is prone to flooding. There are four public houses in the village: ''The Bird in Hand'', ''The Jolly Sailor'', ''The Crown'' and ''The Riverside''. Saltford possesses a number of listed buildings. In 1948 the residents started a community fund that was used to build a village hall. Saltford Hall was completed in 1961, after residents had given their time free to digging the foundations and building the main hall itself. Since its completion, it has been run by a voluntary charity, the Saltford Community Association. Its fund-rai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calamine Brass
Calamine brass is brass produced by a particular alloying technique using the zinc ore calamine directly, rather than first refining it to metallic zinc. Direct zinc smelting appears to have been unknown in Europe until the mid-18th century, even though the alloyed calamine brass was in use for centuries, and metallic zinc was produced directly via reducing-atmosphere smelting in India and China from the 12th century CE onwards. Brass is an alloy of copper and zinc and, when it was first developed, methods for producing metallic zinc were unknown. Metallurgists wishing to produce brass thus used calamine (actually a mixture of the virtually indistinguishable zinc ores smithsonite and hemimorphite) as the zinc component of brass. The resulting brasses, produced by heating a mixture of copper and calamine to a high temperature for several hours (allowing zinc vapor to distill from the ores and permeate the metallic copper), contained a significant amount of slag material resulting f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watermills In Somerset
A watermill or water mill is a mill that uses hydropower. It is a structure that uses a water wheel or water turbine to drive a mechanical process such as milling (grinding), rolling, or hammering. Such processes are needed in the production of many material goods, including flour, lumber, paper, textiles, and many metal products. These watermills may comprise gristmills, sawmills, paper mills, textile mills, hammermills, trip hammering mills, rolling mills, wire drawing mills. One major way to classify watermills is by wheel orientation (vertical or horizontal), one powered by a vertical waterwheel through a gear mechanism, and the other equipped with a horizontal waterwheel without such a mechanism. The former type can be further divided, depending on where the water hits the wheel paddles, into undershot, overshot, breastshot and pitchback (backshot or reverse shot) waterwheel mills. Another way to classify water mills is by an essential trait about their location: tide mills ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scheduled Monuments In Bath And North East Somerset
Bath and North East Somerset (commonly referred to as BANES or B&NES) is a unitary authority created on 1 April 1996, following the abolition of the County of Avon, which had existed since 1974. Part of the ceremonial county of Somerset, Bath and North East Somerset occupies an area of , two-thirds of which is green belt. It stretches from the outskirts of Bristol, south into the Mendip Hills and east to the southern Cotswold Hills and Wiltshire border. The city of Bath is the principal settlement in the district, but BANES also covers Keynsham, Midsomer Norton, Radstock and the Chew Valley. The area has a population of 170,000, about half of whom live in Bath, making it 12 times more densely populated than the rest of the area. A scheduled monument is a nationally important archaeological site or monument which is given legal protection by being placed on a list (or "schedule") by the Secretary of State for Culture, Media and Sport; Historic England takes the leading role ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade II* Listed Buildings In Bath And North East Somerset
Bath and North East Somerset (commonly referred to as BANES or B&NES) is a unitary authority created on 1 April 1996, following the abolition of the County of Avon, which had existed since 1974. Part of the ceremonial county of Somerset, Bath and North East Somerset occupies an area of , two-thirds of which is green belt. It stretches from the outskirts of Bristol, south into the Mendip Hills and east to the southern Cotswold Hills and Wiltshire border. The city of Bath is the principal settlement in the district, but BANES also covers Keynsham, Midsomer Norton, Radstock and the Chew Valley. The area has a population of 170,000, about half of whom live in Bath, making it 12 times more densely populated than the rest of the area. In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical, or cultural significance; Grade II* structures are those considered to be "particularly sig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Buildings Completed In The 18th Century
Industrial may refer to: Industry * Industrial archaeology, the study of the history of the industry * Industrial engineering, engineering dealing with the optimization of complex industrial processes or systems * Industrial city, a city dominated by one or more industries * Industrial loan company, a financial institution in the United States that lends money, and may be owned by non-financial institutions * Industrial organization, a field that builds on the theory of the firm by examining the structure and boundaries between firms and markets * Industrial Revolution, the development of industry in the 18th and 19th centuries * Industrial society, a society that has undergone industrialization * Industrial technology, a broad field that includes designing, building, optimizing, managing and operating industrial equipment, and predesignated as acceptable for industrial uses, like factories * Industrial video, a video that targets “industry” as its primary audience * Industrial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bath And North East Somerset
Bath and North East Somerset (B&NES) is a unitary authority district in England. Bath and North East Somerset Council was created on 1 April 1996 following the abolition of the county of Avon. It is part of the ceremonial county of Somerset. The unitary authority provides a single tier of local government with responsibility for almost all local government functions within the district, including local planning and building control, local roads, council housing, environmental health, markets and fairs, refuse collection, recycling, cemeteries, crematoria, leisure services, parks, and tourism. It is also responsible for education, social services, libraries, main roads, public transport, trading standards, waste disposal and strategic planning, although fire, police and ambulance services are provided jointly with other authorities through the Avon Fire and Rescue Service, Avon and Somerset Constabulary and the South Western Ambulance Service. Its administrative headquarters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolling (metalworking)
In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness, to make the thickness uniform, and/or to impart a desired mechanical property. The concept is similar to the rolling of dough. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature, then the process is known as hot rolling. If the temperature of the metal is below its recrystallization temperature, the process is known as cold rolling. In terms of usage, hot rolling processes more tonnage than any other manufacturing process, and cold rolling processes the most tonnage out of all cold working processes... Roll stands holding pairs of rolls are grouped together into rolling mills that can quickly process metal, typically steel, into products such as structural steel (I-beams, angle stock, channel stock), bar stock, and rails. Most steel mills ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Wheel
A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or buckets arranged on the outside rim forming the driving car. Water wheels were still in commercial use well into the 20th century but they are no longer in common use. Uses included milling flour in gristmills, grinding wood into pulp for papermaking, hammering wrought iron, machining, ore crushing and pounding fibre for use in the manufacture of cloth. Some water wheels are fed by water from a mill pond, which is formed when a flowing stream is dammed. A channel for the water flowing to or from a water wheel is called a mill race. The race bringing water from the mill pond to the water wheel is a headrace; the one carrying water after it has left the wheel is commonly referred to as a tailrace. Waterwheels were used for various purposes from ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annealing (metallurgy)
In metallurgy and materials science, annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable. It involves heating a material above its recrystallization temperature, maintaining a suitable temperature for an appropriate amount of time and then cooling. In annealing, atoms migrate in the crystal lattice and the number of dislocations decreases, leading to a change in ductility and hardness. As the material cools it recrystallizes. For many alloys, including carbon steel, the crystal grain size and phase composition, which ultimately determine the material properties, are dependent on the heating rate and cooling rate. Hot working or cold working after the annealing process alters the metal structure, so further heat treatments may be used to achieve the properties required. With knowledge of the composition and phase diagram, heat treatment can be used to ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annealing Furnace Saltford Brass Mill
Annealing may refer to: * Annealing (biology), in genetics * Annealing (glass), heating a piece of glass to remove stress * Annealing (materials science), a heat treatment that alters the microstructure of a material * Quantum annealing Quantum annealing (QA) is an optimization process for finding the global minimum of a given objective function over a given set of candidate solutions (candidate states), by a process using quantum fluctuations. Quantum annealing is used mainl ..., a method for solving combinatorial optimisation problems and ground states of glassy systems * Simulated annealing, a numerical optimization technique {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Champion (metallurgist)
William Champion (1709–1789) is credited with patenting a process in Great Britain to distill zinc metal from calamine using charcoal in a smelter. Background After Abraham Darby I had left the Bristol Brass Company to form his own new copper works at Coalbrookdale, fellow Quaker Nehemiah Champion took over leadership. Nehemiah had three sons: John (1705–1794); Nehemiah (1709–1782); and the youngest William (1710–1789). Early life and patent As a young man, William Champion toured Europe to learn the art of brass making, returning to become a junior partner in the Bristol Brass Company in 1730. He then experimented for six years to develop a process to create zinc – then known as spelter. Using a scaled-up process similar to that used at the Zawar mines in India where this process was available centuries before William Champion rediscovered it, since the 12th century AD,p. 46, Ancient mining and metallurgy in Rajasthan, S. M. Gandhi, chapter 2 in ''Crustal Evolution an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
