Armature used in Farmer Dynamo
name: label: maker
content: Farmer, Moses G.
notes: label: Description (Brief)
content: An armature for a motor or generator, used by Moses G. Farmer. Steel axle on which is mounted a wire-wrapped cylinder and two ceramic-insulated copper commutator drums. The cylinder is in tow haves separated by and copper wire wrapping that holds the windings in place. Both halves have twelve steel dividers through which a single wrapping of tan insulated copper wire is woven. Copper leads from both ends of the cylinder connect to the commutator on that end. The commutators each have twelve sections. A hole is drilled in each end. No extant maker's marks. Paper label contains museum catalog and accession numbers.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Sarah J. Farmer
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.181966
label: catalog number
content: 181966
label: accession number
content: 2015.0173
objectType: label: Object Name
content: Armature
label: Other Terms
content: Armature; Components; Motors and Generators; Motor and Generators; Motor and Generators
physicalDescription: label: Measurements
content: overall: 18 1/4 in x 2 1/4 in; 46.355 cm x 5.715 cm