Model of Joseph Henry's electromagnetic bell
date: label: Date made
content: c1898
label: date made
content: 1897
name: label: maker
content: Schultzbach, John
notes: label: Description (Brief)
content: The original device, consisting of an electromagnet arranged to ring a bell, was demonstrated in 1831 by Joseph Henry to his classes at the Albany Academy in Albany, N. Y. By closing a circuit, Henry energized the electromagnet with current from a battery. The magnet attracted a lever arm that rang the bell. This demonstrated electrical action at a distance and laid the foundation for later telegraph devices. This replica was made for the museum in 1897 by John Schultzbach.
label: Location
content: Currently not on view
place: label: place made
content: United States: District of Columbia, Washington
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: Made in Museum
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.181323.01
label: catalog number
content: 181323.01
label: nonaccession number
content: 1997.3117
objectType: label: Object Name
content: electromagnetic demonstration
label: Other Terms
content: Demonstration Apparatus; Electromagnetic Devices; Magnetic Devices; Electromagnetic Devices
physicalDescription: label: Measurements
content: overall: 3 1/2 in x 19 in x 8 in; 8.89 cm x 48.26 cm x 20.32 cm