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A safety lamp is any of several types of lamp that provides illumination in places such as coal mines where the air may carry coal dust or a build-up of flammable gases, which may explode if ignited, possibly by an electric spark. Until the development of effective electric lamps in the early 1900s, miners used flame lamps to provide illumination.
1859 William Clark patented the first electrical mining lamp. [3] 1870s J.B.Marsaut (France) double gauze design [4] 1872 Coal Mines Regulation Act required locked lamps under certain conditions [5] 1881 Joseph Swan exhibited his first electric lamp 1882 Made by William Reid Clanny invented a 'bonnetted' Clanny lamp, [6]
Richard Evans and Company — was a coal mining company that operated from 1730 to 1899. Richer Sounds — is a company that operates a retail store chain and retail website offering hifi, home cinema, and television products. It is headquartered in London. It was founded in 1978 by Julian Richer with the help of Vic Odden.
The Jeffrey Manufacturing Company, was an American industrial equipment manufacturing company, at one time the largest producer of coal cutting machines and mining locomotives in the world. It was established in 1878 as the Lechner Mining Machine Company, based in Columbus, Ohio , and is credited with producing America's first power-driven coal ...
Bolsover Colliery Company — was a coal mining company that operated from 1889 to 1947. Headquartered in Bolsover, Derbyshire, in 1947 it was nationalised and became part of the National Coal Board. Bombay Spirits Company Ltd — is a producer of gin located at Laverstoke Mill, Laverstoke, Hampshire. It is owned by Bacardi.
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The Geordie lamp was a safety lamp for use in flammable atmospheres, invented by George Stephenson in 1815 as a miner's lamp to prevent explosions due to firedamp in coal mines. Origin [ edit ]
The English mining operations were merged with RJB Mining to form UK Coal, a monopoly. British Coal continued as a separate organisation until 31 December 1997, after which it was run as a residual legal entity by staff within the Coal Directorate of the Department of Trade and Industry, [3] [4] eventually being dissolved on 27 March 2004. [5] [6]
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