Definitions for davy lamp

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Princeton's WordNet

  1. safety lamp, Davy lamp(noun)

    an oil lamp that will not ignite flammable gases (methane)

Wiktionary

  1. Davy lamp(Noun)

    A minersu2019 lamp or safety lamp used in coal mines to warn against methane (firedamp).

  2. Origin: after Sir Humphry Davy

Webster Dictionary

  1. Davy lamp

    see Safety lamp, under Lamp

Freebase

  1. Davy lamp

    The Davy lamp is a safety lamp for use in flammable atmospheres, consisting of a wick lamp with the flame enclosed inside a mesh screen. It was invented in 1815 by Sir Humphry Davy. It originally burned a heavy vegetable oil. 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. Sir Humphry Davy had discovered that a flame enclosed inside a mesh of a certain fineness cannot ignite firedamp. The screen acts as a flame arrestor; air 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 news about Davy's lamp was made public at a Royal Society meeting in Newcastle on 3 November 1815, and the paper describing the lamp was formally presented on 9 November. For it, Davy was awarded the Society's Rumford Medal.. The first trial of a Davy lamp with a wire sieve was at Hebburn Colliery on 9 January 1816.

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