An old engraving of a Victorian photo-electric safety lamp for use in mines in the 1800s. It is from a book of the 1880s. This electric lamp, by Dumas and Benoit, had a generating cell battery enclosed in a shoulder carrying-case. Wires passed through insulated flex to an illuminating coil within a sealed glass cylinder. The first practical safety lamp for use in flammable atmospheres was invented in 1815 by British inventor Sir Humphry Davy. It consists of a wick lamp with the flame enclosed inside a mesh screen. It reduced the danger of explosions due to the presence of flamable gases.
An old engraving of a Victorian photo-electric safety lamp for use in mines in the 1800s. It is from a mechanical engineering book of the 1880s. This electric lamp, by Dumas and Benoit, had a generating cell battery enclosed in a shoulder carrying-case. Wires passed through insulated flex down to an illuminating coil contained within a sealed glass cylinder. The first practical safety lamp for use in flammable atmospheres was invented in 1815 by British inventor Sir Humphry Davy. It consists of a wick lamp with the flame enclosed inside a mesh screen. It was created for use in coal mines, to reduce the danger of explosions due to the presence of methane and other flammable gases, called firedamp or minedamp.
Size: 2835px × 2556px
Photo credit: © M&N / Alamy / Afripics
License: Licensed
Model Released: No
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