Search results
Results from the WOW.Com Content Network
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]
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 ]
A mining lamp is a lamp, developed for the rigid necessities of underground mining operations. Most often it is worn on a hard hat in the form of a headlamp . History
In 1867, Thomas patented an improvement to the design of the safety lamp that would prevent the glass in the lamp from becoming loose by using india rubber. In 1868, he obtained a patent for "an improvement in the construction of miners' safety lamps, in such a manner as to enable petroleum or other mineral oils to be consumed therein". [2]
In 1812 the Felling mine disaster and the explosion at Mill Pit in Herrington near Sunderland focussed attention on the issue of the safe provision of lighting in mines. In the same year Clanny completed his first lamp consisting of a candle in a glass surround.
The entrance to the mine, now blocked but still visible, was renovated in 2002. The entrance and a memorial to the miners killed in the accident are located behind the Mount Pleasant (PA) Township Municipal Authority building, which was formerly the lamp-house, where miners' safety lamps were stored and distributed. [5]
1809 Humphry Davy publicly demonstrates first electric lamp over 10,000 lumens, at the Royal Society. [5] 1813 National Heat and Light Company formed by Frederick Albert Winsor. 1815 Humphry Davy invents the miner's safety lamp. 1823 Johann Wolfgang Döbereiner invents the Döbereiner's lamp.
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.