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Mining On The Brendon Hills
The Brendon Hills are a range of hills in western Somerset, England. The hills merge level into the eastern side of Exmoor and are included within the Exmoor National Park. Iron ore and other minerals have been extracted for industrial purposes, primarily by the Brendon Hills Iron Ore Company in the later half of the 19th century. Geology The Brendon Hills are largely formed from the Exmoor Group#Morte Slates Formation, Morte Slates, a thick fault (geology), faulted and fold (geology), folded sequence of Devonian age sedimentary rocks. An east-west aligned anticline/syncline pair known as the Brendon Anticline and Brendon Syncline folds these rocks. The fold couplet is itself offset by displacement of the rocks on the NNW-SSE aligned Timberscombe Fault System. Over the centuries they have been mined for minerals, notably ironstone from which iron is extracted for making steel. History Where lodes of iron ore reached the surface they were worked using bell pits from Roman conquest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Winding House At The Top Of The Incline On The West Somerset Mineral Line (geograph 2075952)
''The'' is a grammatical Article (grammar), article in English language, English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the Most common words in English, 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 nouns 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 con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goethite
Goethite (, ) is a mineral of the diaspore group, consisting of iron(III) oxide-hydroxide, specifically the α- polymorph. It is found in soil and other low-temperature environments such as sediment. Goethite has been well known since ancient times for its use as a pigment (brown ochre). Evidence has been found of its use in paint pigment samples taken from the caves of Lascaux in France. It was first described in 1806 based on samples found in the Hollertszug Mine in Herdorf, Germany. The mineral was named after the German polymath and poet Johann Wolfgang von Goethe (1749–1832). Composition Goethite is an iron oxyhydroxide containing ferric iron. It is the main component of rust and bog iron ore. Goethite's hardness ranges from 5.0 to 5.5 on the Mohs Scale, and its specific gravity varies from 3.3 to 4.3. The mineral forms prismatic needle-like crystals ("needle ironstone") but is more typically massive. Feroxyhyte and lepidocrocite are both polymorphs of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haematite
Hematite (), also spelled as haematite, is a common iron oxide compound with the formula, Fe2O3 and is widely found in rocks and soils. Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of . It has the same crystal structure as corundum () and ilmenite (). With this it forms a complete solid solution at temperatures above . Hematite occurs naturally in black to steel or silver-gray, brown to reddish-brown, or red colors. It is mined as an important ore mineral of iron. It is electrically conductive. Hematite varieties include ''kidney ore'', ''martite'' ( pseudomorphs after magnetite), ''iron rose'' and ''specularite'' ( specular hematite). While these forms vary, they all have a rust-red streak. Hematite is not only harder than pure iron, but also much more brittle. The term ''kidney ore'' may be broadly used to describe botryoidal, mammillary, or reniform hematite. Maghemite is a polymorph of hematite (γ-) with the sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morgan Morgans, Engineer
Morgan Morgans (1814–1888) was a civil engineer particularly involved with mining. Morgans was born in Llanddeusant, Carmarthenshire in either 1814 or 1816. He worked in connection with Ebbw Vale Ironworks from about 1840. The 1851 Census of Wales shows him (wrongly recorded as Morgan Morgan) living in Black Vein Colliery with his wife and children then born, employed as "Coal Agent". By 1855 he had risen to colliery manager. In 1858 his employers either sent or encouraged him to West Somerset to manage the Brendon Hills Iron Ore Company, one of their suppliers, on the death of its Mines Captain, David Richard. Within a year Morgans also took over from William Roberts as engineer of the West Somerset Mineral Railway, which had been promoted by the Ebbw Vale company to bring iron ore from the mines in the Brendon Hills to Watchet harbour. The ore was shipped from Watchet to Newport then taken by train to the furnaces at Ebbw Vale. He was promoted from the railway's engineer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam Engine
A beam engine is a type of steam engine where a pivoted overhead Beam (structure), beam is used to apply the force from a vertical piston to a vertical connecting rod. This configuration, with the engine directly driving a pump, was first used by Thomas Newcomen around 1705 to remove water from mines in Cornwall. The efficiency of the engines was improved by engineers including James Watt, who added a separate Condenser (heat transfer), condenser; Jonathan Hornblower and Arthur Woolf, who Compound steam engine, compounded the cylinders; and William McNaught (Glasgow), William McNaught, who devised a method of compounding an existing engine. Beam engines were first used to pump water out of mines or into canals but could be used to pump water to supplement the flow for a waterwheel powering a watermill, mill. The rotative beam engine is a later design of beam engine where the connecting rod drives a flywheel by means of a Crank (mechanism), crank (or, historically, by means of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelting
Smelting is a process of applying heat and a chemical reducing agent to an ore to extract a desired base metal product. It is a form of extractive metallurgy that is used to obtain many metals such as iron-making, iron, copper extraction, copper, silver mining#Ore processing, silver, tin, lead smelting, lead and zinc smelting, zinc. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal behind. The reducing agent is commonly a fossil-fuel source of carbon, such as carbon monoxide from incomplete combustion of coke (fuel), coke—or, in earlier times, of charcoal. The oxygen in the ore binds to carbon at high temperatures, as the Chemical energy, chemical potential energy of the bonds in carbon dioxide () is lower than that of the bonds in the ore. Sulfide ores such as those commonly used to obtain copper, zinc or lead, are roasting (metallurgy), roasted before smelting in order to convert the sulfid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ebbw Vale
Ebbw Vale (; ) is a town at the head of the valley formed by the Ebbw Fawr tributary of the Ebbw River in Wales. It is the largest town and the administrative centre of Blaenau Gwent county borough. The Ebbw Vale and Brynmawr conurbation has a population of roughly 33,000. It has direct access to the dualled A465 road, A465 Heads of the Valleys trunk road and borders the Brecon Beacons National Park. Welsh language According to the United Kingdom Census 2011, 2011 Census, 4.6% of Ebbw Vale North's 4,561 (210 residents) resident-population can speak, read, and write Welsh language, Welsh, and 5.7% of Ebbw Vale South's 4,274 (244 residents) resident-population can speak, read, and write Welsh. This is below the Blaenau Gwent, county's figure of 5.5% of 67,348 (3,705 residents) who can speak, read, and write Welsh language, Welsh. Early history There is evidence of very early human activity in the area. List of Scheduled Monuments in Blaenau Gwent, Y Domen Fawr is a Bronze Age Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watchet Harbour
Watchet is a harbour town, civil parish and electoral ward in the county of Somerset, England, with a population in 2011 of 3,785. It is situated west of Bridgwater, north-west of Taunton, and east of Minehead. The town lies at the mouth of the Washford River on Bridgwater Bay, part of the Bristol Channel, and on the edge of Exmoor National Park. The original settlement may have been at the Iron Age fort, Daw's Castle. It then moved to the mouth of the river and a small harbour developed. After the Saxon conquest of the area the town developed, becoming known as Weced or Waeced, and was attacked by Vikings in the 10th century. Trade using the harbour gradually grew, despite damage during several severe storms, with import and exports of goods including those from Wansbrough Paper Mill until the 19th century when it increased with the export of iron ore, brought from the Brendon Hills via the West Somerset Mineral Railway, mainly to Newport for onward transportation to the Eb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade (slope)
The grade (US) or gradient (UK) (also called stepth, slope, incline, mainfall, pitch or rise) of a physical feature, landform or constructed line is either the elevation angle of that surface to the horizontal plane, horizontal or its tangent. It is a special case of the slope, where zero indicates horizontal plane, horizontality. A larger number indicates higher or steeper degree of "tilt". Often slope is calculated as a ratio of "rise" to "run", or as a fraction ("rise over run") in which ''run'' is the horizontal distance (not the distance along the slope) and ''rise'' is the vertical distance. Slopes of existing physical features such as canyons and hillsides, bank (geography), stream and river banks, and stream bed, beds are often described as grades, but typically the word "grade" is used for human-made surfaces such as roads, landscape grading, roof pitches, rail tracks, railroads, aqueduct (watercourse), aqueducts, and pedestrian or bicycle routes. The grade may refer to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Railway
A cable railway is a railway that uses a Wire rope, cable, rope or chain to haul trains. It is a specific type of cable transportation. The most common use for a cable railway is to move vehicles on a Grade (slope), steeply graded line that is too steep for conventional locomotives to operate on – this form of cable railway is often called an incline or inclined plane, or, in New Zealand, a jigline, or jig line. One common form of incline is the funicular – an isolated passenger railway where the cars are permanently attached to the cable.Walter Hefti: ''Schienenseilbahnen in aller Welt. Schiefe Seilebenen, Standseilbahnen, Kabelbahnen.'' Birkhäuser, Basel 1975, (in German) In other forms, the cars attach and detach to the cable at the ends of the cable railway. Some cable railways are not steeply graded - these are often used in quarries to move large numbers of wagons between the quarry to the processing plant. History The oldest extant cable railway is probably the Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Somerset Mineral Railway
The West Somerset Mineral Railway was a standard gauge line in Somerset, England. Originally expected to be long its length as built was , with a branch to Raleigh's Cross Mine. The line's core purpose was to carry iron ore northwards from mines on the Brendon Hills to Watchet harbour on the Bristol Channel. From there the ore was shipped northwards to Newport where it was unloaded onto railway wagons and hauled to ironworks at Ebbw Vale. The line opened as intended in 1861. Passenger services commenced in 1865. The mines' and line's "period of prosperity" ended in 1875 and by 1883 all mining had ceased. The line lingered on for passengers and small goods until 1898, when it closed. A new mineral venture was attempted in 1907, for which much of the line was re-opened and a -gauge extension was added, but this failed and the line closed again in 1910. A section of the track was used to test and demonstrate an automatic signal warning device in 1911 and occasionally used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
