Spinning inductor apparatus
date: label: date made
content: ca 1890
name: label: maker
content: Apps, Alfred
notes: label: Description (Brief)
content: A spinning inductor demonstration apparatus. Wooden base with four wooden feet and two brass binding posts. Wooden column on one side of which is mounted a wooden pulley with ivory(?) handle. The other side supports two insulated copper wires. On top is mounted an armature on one side of which is a pulley, on the other side is a brass leaf spring commutator and a hard rubber arm that rotates along the horizontal axis. A brass spiral is set at each end of the arm, and may be adjusted so that the separation between the coils can vary between about 7" to 16". An inlaid label on the base reads: "*APPS* / 433 Strand / London." Old tag notes "27". Accession file lists this as part of the "Wheatstone Collection". Maker is Alfred Apps (1839-1913); 433 Strand, London. Optician & "maker of mathematical & pharmacological instruments".
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from University of London King's College, Department of Physics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1990.0539.15
label: accession number
content: 1990.0539
label: catalog number
content: 1990.0539.15
objectType: label: Object Name
content: Inductor, Spinning
label: Object Name
content: inductor
label: Other Terms
content: Inductor, Spinning; Magnetic Devices
physicalDescription: label: Measurements
content: overall (horizontal): 12 1/2 in x 17 3/4 in x 7 in; 31.75 cm x 45.085 cm x 17.78 cm