Mining lamp

This enabled the light to pass through and reduced the risk of explosion by stopping the "firedamp" methane gas coming in contact with the flame.

[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] 1883 Elliis Lever of Culcheth Hall Bowdon offered a £500 prize for creation of a safe portable mining lamp.

[7][8] 1885 Thomas Evans of Aberdare made a Clanny type of safety lamp[9] 1886 Royal Commission on Accidents in Mines tested lamps and made recommendations 1887 Coal Mines Regulation Act – requirements on construction, examination, where used, etc.

[10] 1889 John Davis and Co, Derby, were supplying portable electric lamps[11] 1896 Coal Mines Regulation Act - requirements on provision by mine owners, where to be used, etc.

[12] 1909 Cap (helmet) lamps introduced in Scotland 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.