Electric Arc Lamp
An arc lamp or arc light is the general term for a class of lamps that produce light by an electric arc. The lamp consists of two electrodes, typically made of tungsten, which are separated by a gas.
Keywordslight, beacon, lantern, beam, lighting, flashlight, electric lamp, electric arc, voltaic lamp, tungsten electrodes
Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)