1813
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Safety lamps were developed because naked flames like candles caused explosions because of gases underground.
The earliest ones were an oil burning lamp with the flame surrounded by metal gauze. The gauze distributes the heat of the flame over a large area the temperature of the gauze is below the ignition temperature of the gas. Later on, electric lamps were developed.
Learn more about the development of safety lamps
1813
1815
1815
1840
1859
1870s
1872
This required locked lamps under certain conditions.
This required locked lamps under certain conditions.
1881
1886
Tested lamps and made recommendations.
Tested lamps and made recommendations.
1887
Requirements on construction, examination and where used.
Requirements on construction, examination and where used.
1889
They were supplying portable electric lamps.
They were supplying portable electric lamps.
1896
Requirements on provision by mine owners, where to be used.
Requirements on provision by mine owners, where to be used.
1909
1911
1911
Requirements on examination, where can be used (including electrical).
Requirements on examination, where can be used (including electrical).
1920
1924
Tests and recommendations.
Tests and recommendations.
If you would like to explore more about Safety Lamps in the archives you can search and explore here