rotary in-line switch
date: label: date made
content: ca 1890
notes: label: Description (Brief)
content: This appears to be a rotary inline switch in a brass housing, switch rotates 360 degrees and has two on-off cycles per rotation. Exact function uncertain as the housing is one-piece with female-threaded conduit connectors at top and bottom - there seems to be no easy way to wire it into place. This unit was initially thought to be a gas lighting valve but it clearly would not shut off a gas flow. No extant markings.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from International Business Machines, Inc., William J. Hammer Collection
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.241402.173
label: accession number
content: 241402
label: catalog number
content: 241402.173
objectType: label: Object Name
content: Switch
label: Object Name
content: electrical switch
label: Other Terms
content: Switch; Components; Power and Lighting; Power and Lighting
physicalDescription: label: Measurements
content: switch: 1 3/4 in x 1 1/4 in x 2 1/2 in; 4.445 cm x 3.175 cm x 6.35 cm