Farmer electro-magnetic engine, patent #126,628
date: label: date made
content: ca 1871
label: date made
content: 1871
name: label: associated person
content: Farmer
label: maker
content: Farmer
label: maker
content: Farmer, Moses G.
notes: label: Description (Brief)
content: Three-piece armature affixed to center shaft. Four flat electro-magnets painted red fastened in circular frame; central revolving armature with three iron plates; commutator at end. Unit has six brushes affixed to binding posts. Reference: US Patent 126628, Improvement in Electro-Magnetic Engines, issued 14 May 1872 to Moses G. Farmer. Claim: an improved manner of constructing an electromagnetic engine so as to prevent formation of induction sparks. This is accomplished by connecting the extremities of an electromagnet helix just before the circulating galvanic current is interrupted.
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
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.252635
label: catalog number
content: 252635
label: accession number
content: 49064
objectType: label: Object Name
content: Electric Motor
label: Object Name
content: motor
label: Object Name
content: electric motor
label: Other Terms
content: Electric Motor; Electromagnetic Devices
physicalDescription: label: Measurements
content: overall: 6 1/2 in x 6 1/2 in x 8 1/2 in; 16.51 cm x 16.51 cm x 21.59 cm