Duboscq Arc Lamp
date: label: date made
content: ca 1864
name: label: associated person
content: Duboscq, Jules
label: maker
content: Duboscq, Jules
notes: label: Description (Brief)
content: A later arc lamp designed by Jules Duboscq, who adapted and improved a regulator designed by Leon Foucault. Two carbon rods are mounted vertically on one side of the device, and two electromagnet coils are mounted on the bottom. The electromagnetic mechanism maintains a gap between the rods. Electricity passing from one gap to the other heats a spot on one rod such that it emits a bright light. A mechanism's cover is inscribed, "J. Duboscq g a'Paris, Appareil Brevete S.G.D.G. No. 33." Reference: King, W. James. "The development of electrical technology in the 19th century: The early arc light and generator," United States National Museum Bulletin 228, (Smithsonian Institution, 1962), 337-343.
setName: label: See more items in
content: Work and Industry: Electricity
label: Exhibition
content: Lighting a Revolution
label: Exhibition Location
content: National Museum of American History
creditLine: label: Credit Line
content: from the United States Military Academy, thru Col. E. C. Gillette, Jr.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.315717
label: catalog number
content: 315717
label: accession number
content: 217544
objectType: label: Object Name
content: Arc Lamp
label: Other Terms
content: Arc Lamp; Lighting Devices
physicalDescription: label: Measurements
content: overall: 19 in x 8 1/2 in x 9 1/2 in; 48.26 cm x 21.59 cm x 24.13 cm