Edison type E direct current dynamo
date: label: date made
content: ca. 1881
label: date made
content: ca 1881
name: label: maker
content: Edison Electric Light Company
notes: label: Description (Brief)
content: Edison type E bi-polar generator. Brass tag on bottom pole face reads: "Edison Electric Light Co. / New York City / Patented December 29, 1879 / other patens applied for / No. 41". Two field poles mounted vertically with armature rotating across field at bottom. Drum type armature with windings set in slots. Commutator has 24 bars. Air gap about 1/8". Wooden block at top has terminals and rotary switch. Designed for fifteen 16-candlepower lamps; operates at 2200 RPM. Reference: McClaren, Rise of the Electrical Industry in the 19th Century, page 124. Picture opposite page 117.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Princeton University, Dept. of Physics, thru A. G. Shenstone
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.315800
label: catalog number
content: 315800
label: accession number
content: 221203
objectType: label: Object Name
content: generator
label: Object Name
content: Dynamo, Edison, type e
physicalDescription: label: Measurements
content: overall: 34 in x 24 3/4 in x 17 1/4 in; 86.36 cm x 62.865 cm x 43.815 cm