Safety Lamp

Safety Lamp, name of a variety of lamps for safety in coal-mines against “fire-damp,” a highly explosive mixture of natural gas apt to accumulate in them; the best known being the “Davey Lamp,” invented by Sir Humphrey Davy; the “Geordie,” invented by George Stephenson, both of which, however, have been superseded by the Gray, Muesler, Marsant, and other lamps; all are constructed on the principle discovered by Davy and Stephenson, that a flame enveloped in wire gauze of a certain fineness does not ignite “fire-damp.”

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Safed * Saffi
Sacring-bell
Sacy, Antoine Isaac, Baron Silvestre de
Sadda
Sadducees
Sade, Donatien Alphonse François, Marquis de
Sádi
Sadler, Sir Ralph
Sadoleto, Jacopo
Sadowa
Safed
Safety Lamp
Saffi
Sagar
Sagas
Sagasta, Praxedes Mateo
Saghalien
Saguenay
Saguntum
Sahara
Saharanpur
Sahib