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Llechwedd Quarry
Llechwedd quarry () is a major slate quarry in the town of Blaenau Ffestiniog, north Wales. At its peak in 1884 it produced 23,788 tons of finished slate per year and had 513 employees. It continues to produce slate on a limited scale and is the location of the Llechwedd Slate Caverns tourist attraction. History As early as 1831, permission was sought to begin quarrying near Llechwedd Farm, however this came to nothing. The Llechwedd slate quarry was opened in 1846 by John Whitehead Greaves, a successful quarry owner. Greaves had a history with the slate quarries at Blaenau Ffestiniog, and had proposed a railway to link the quarries with the river wharf at Dwyryd as early as 1836. When the Ffestiniog Railway was opened in 1836, connecting Blaenau Ffestiniog with the sea at Porthmadog, Greaves travelled on the historic first train. In 1843 Greaves was elected the treasurer of the Ffestiniog Railway and in 1844 he became its chairman. This began a long association betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gwynedd
Gwynedd (; ) is a county and preserved county (latter with differing boundaries; includes the Isle of Anglesey) in the north-west of Wales. It shares borders with Powys, Conwy County Borough, Denbighshire, Anglesey over the Menai Strait, and Ceredigion over the River Dyfi. The scenic Llŷn Peninsula and most of Snowdonia National Park are in Gwynedd. Bangor is the home of Bangor University. As a local government area, it is the second largest in Wales in terms of land area and also one of the most sparsely populated. A majority of the population is Welsh-speaking. ''Gwynedd'' also refers to being one of the preserved counties of Wales, covering the two local government areas of Gwynedd and Anglesey. Named after the old Kingdom of Gwynedd, both culturally and historically, ''Gwynedd'' can also be used for most of North Wales, such as the area that was policed by the Gwynedd Constabulary. The current area is , with a population of 121,874 as measured in the 2011 Censu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blondin (quarry Equipment)
Blondins (also known as Henderson Inclined Cableways) were a type of material ropeway; they were named after the famous tightrope walker Charles Blondin. Description Blondins are a specialized type of material ropeway that incorporates a mechanism to raise and lower loads vertically from the suspended ropeway. This allowed them to cross wide, deep spaces such as quarries and move material from the floor up to the level of the ropeway and across to the edge of the quarry. They are powered either by a steam or electrical hoist. History Blondins were developed by John Fyfe, a Scottish quarry engineer. He installed the first example in 1872 at Kemnay granite quarry at Garioch. In 1896, John M. Henderson and Co. introduced the first commercially available Blondin system, which used steel ropes instead of the earlier iron ropes. The first installation at a Welsh slate quarry was a pair of blondins at Pen-yr-Orsedd quarry in 1899. These were powered by stationary steam engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slate Mines In Gwynedd
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression. The foliation in slate is called " slaty cleavage". It is caused by strong compression causing fine grained clay flakes to regrow in planes perpendicular to the compression. When expertly "cut" by striking parallel to the foliation, with a specialized tool in the quarry, many slates will display a property called fissility, forming smooth flat sheets of stone which have long been used for roofing, floor tiles, and other purposes. Slate is frequently grey in color, especially when seen, en masse, covering roofs. However, slate occurs in a variety of colors even from a single locality; for ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingrove & Rogers
Wingrove & Rogers Ltd of Kirkby, Liverpool, England, was formed in 1919 by Major Charles William Wingrove M.C. (1889-1976) and William Rogers (b1891) to manufacture control gear for electric vehicles. In the 1920s they diversified into variable capacitors, the components essential for tuning in the front end of radio receivers which they continued through the second world war during which they supplied the armed forces. In 1926 they amalgamated with British Electric Vehicles Ltd, and moved the electric vehicle production from Southport to Liverpool where they made vehicles such as electrically motorised trolleys and electric locomotives (mainly narrow gauge), largely for use in factories, mines, and by tunnelling contractors. The radio component part of the business was run under a subsidiary, Polar Ltd, formed in 1925. In mid-1928 they opened the Polar Works and they used the "Polar" trademark for the variable capacitors. The Polar business was sold off to Jackson Brothers (Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Electric Vehicles
British Electric Vehicles (BEV) of Churchtown, Southport, Lancashire, built industrial vehicles including both small electrically motorised trolleys for carrying raw materials and products around factories and electric locomotives An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or on-board energy storage such as a battery or a supercapacitor. Locomotives with on-board fuelled prime movers, such as diesel engines or gas ... desirable for use underground and in flammable environments. Company History British Electric Vehicles Ltd was formed in 1905 with works in Churchtwon, Southport. The business used patented controllers made by Wingrove & Rogers Ltd of Kirkby, Liverpool, and in 1926 the business was purchased by Wingrove & Rogers who continued to use the B.E.V trademark. In the early 1990s Wingrove & Rogers was purchased by Pikrose Group in Oldham Lancashire, working until 2005 under the Ferranti Engineering company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bala Lake Railway
The Bala Lake Railway ( Welsh: ''Rheilffordd Llyn Tegid'') is a narrow-gauge railway along the southern shore of Bala Lake in Gwynedd, North Wales. The line, which is long, is built on a section of the former standard-gauge Ruabon–Barmouth GWR route that closed in 1965. Another section of the former permanent way is used by the Llangollen Railway. The Bala Lake Railway, which runs on -gauge preserved rolling stock, is a member of the Great Little Trains of Wales. The railway now has the largest collection of historic narrow-gauge quarry locomotives built specifically for the slate industry in North Wales by the Hunslet Engine Company in Leeds. History Standard Gauge The narrow-gauge Bala Lake railway uses the permanent way of the former standard-gauge GWR Ruabon–Barmouth line. The railway, which opened in August 1868, was built by the Bala and Dolgelley Railway Company. Its original route ran between the Corwen & Bala Railway at and Cambrian Railways' station a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloddfa Ganol
Gloddfa Ganol (also known as the Gloddfa Ganol Mountain Center) was a museum dedicated to the Welsh slate industry and narrow-gauge railways, situated in the Oakeley slate quarry in Blaenau Ffestiniog. It opened in 1974 and closed in 1998 following an auction of its exhibits. Gloddfa Ganol Mountain Center The Oakeley slate quarry was the largest underground slate mine in the world, but it suffered from a sharp decline in worldwide demand for slate after the Second World War. As quarrying declined in the 1970s, the owners sought to diversify to serve the growing tourist trade in Wales. In 1974 the abandoned Middle Quarry was re-opened, producing architectural slab, and as an attraction to the public - the Gloddfa Ganol Mountain Center. The centre offered guided tours of several miles of underground tunnels and chambers and was based in the old Middle Mill, which had been rebuilt for the purpose. Rich Morris collection Railway enthusiast Rich Morris began collecting narrow ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Winton
De Winton & Co (1854–1901) were engineers in Caernarfon, Wales. They built, amongst other things, vertical boilered narrow gauge locomotives for use in Welsh slate mines and other industrial settings. At least six De Winton locomotives have been preserved. But these quarry tramway locomotives, for which in the 21st century they are largely remembered, were just a small part of this company's engineering output. Overview The company had its origins in a small foundry built on the slate wharf at Caernarfon by Owen Thomas in the 1840s. He subsequently went into partnership with Jeffreys Parry de Winton and the firm developed as the Union Foundry. Manufactures included street gaslight columns and all manner of street furniture. When the Carnarvonshire Railway was being built under Castle Square, the tunnel roof was supported by iron beams supplied by De Winton's and their name can still be seen at the entrance to the tunnel, which is now used as a road underpass. The foundry wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert Gilkes & Gordon
Gilbert Gilkes & Gordon, known as Gilkes, is an English hydropower engineering company based in Kendal, Cumbria, founded in 1853. The company makes hydropower turbines and engine cooling pumps. One of the company's notable products is the Turgo turbine, invented in 1919 by Eric Crewdson whose grandson Charles Crewdson OBE is, the company chairman. History In 1853 two brothers named Williamson established a company at Canal Head, Kendal. The first turbine they built in 1856 was installed at Holmescales Farm at Old Hutton and powered farm machinery there for more than a century. This, the "Williamson Bros Vortex Turbine No. 1", survives and is in the collection of Lakeland Arts; it was part of the Museum of Lakeland Life & Industry in Kendal, closed during redevelopment of Abbot Hall. In 1881 Gilbert Gilkes (1845-1924) bought Williamson Brothers, and remained the company chairman until 1920, when he was succeeded by his nephew, Norman Forster Wilson (born 1869). In 1932 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Cast Mining
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburden is relatively thin or the material of interest is structurally unsuitable for tunnelling (as would be the case for cinder, sand, and gravel). In contrast, minerals that have been found underground but are difficult to retrieve due to hard rock, can be reached using a form of underground mining. To create an open-pit mine, the miners must determine the information of the ore that is underground. This is done through drilling of probe holes in the ground, then plotting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
