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Evan Thomas (died after 1881) was a Welsh ironmonger who became an inventor and manufacturer of safety lamps for miners. He was the original proprietor of the Cambrian Lamp Works, established in Aberdare in 1860.
1911 Prize offered for best electrical lamp 1911 Coal Mines Act made requirements for pit managers to take examinations, where can be used (including electrical), etc. 1920 Electrical lamp with built in accumulator 1924 Miners Lamp Committee – tests and recommendations 1950 Shale miner's electric safety cap lamp and battery pack made in ...
A type of Davy lamp with apertures for gauging flame height. The lamp consists of a wick lamp with the flame enclosed inside a mesh screen. The screen acts as a flame arrestor; air (and any firedamp present) can pass through the mesh freely enough to support combustion, but the holes are too fine to allow a flame to propagate through them and ignite any firedamp outside the mesh.
The Welsh immigrant families became successful and established other businesses in Knoxville, which included a company that built coal cars, several slate roofing companies, a marble company, and several furniture companies. By 1930 many Welsh dispersed into other sections of the city and neighboring counties such as Sevier County. Today, more ...
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In the 19th century, thousands of Welsh coal miners emigrated to the anthracite and bituminous mines of Pennsylvania, many becoming mine managers and executives. The miners brought organizational skills, exemplified in the United Mine Workers labor union, and its most famous leader John L. Lewis , who was born in a Welsh settlement in Iowa.
The Sussmann lamp [58] was introduced into Britain in 1893 and following trials at Murton Colliery in Durham it became a widely used electric lamp with 3000 or so reported by the company in use in 1900 [59] However, by 1910 there were only 2055 electric lamps of all types in use – about 0.25% of all safety lamps. [60]
An acetylene gas miner's lamp. A carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C 2 H 2), which is created by the reaction of calcium carbide (CaC 2) with water (H 2 O). [1] Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable ...