Davy lamp 
noun
A miner’s portable safety lamp with the flame enclosed by wire gauze to reduce the risk of an explosion of gas.Thus was born the Davy lamp, in which the flame is surrounded by wire gauze to dissipate heat and prevent ignition of flammable gases....
- Davy separated the flame from the gas, and his lamp later became widely used, and known as the Davy lamp.
- The Davy lamp was fuelled by oil or naptha (lighter fluid), and the wick was contained in a metal gauze cylinder.