Telegraph Register
name: label: maker
content: Knox & Shain
notes: label: Description (Brief)
content: The handle on top of this telegraph register appears to have been an adaptation by the users at Oberlin College rather than something that came with the device. The register was made by Knox & Shain, a noted Philadelphia maker of telegraph equipment.
label: Description (Brief)
content: Telegraph registers are electrically-activated printers that receive Morse code messages. The message travels as a series of electrical pulses through a wire. The pulses energize the register’s electromagnets which move a lever-arm holding a pen or stylus. A clockwork mechanism pulls a strip of paper across the pen or stylus, recording the message. Short pulses draw or emboss a dot, slightly longer pulses a dash. The sequence of dots and dashes represent letters and numbers.
label: Location
content: Currently not on view
topic: label: web subject
content: Communication, telegraph
setName: label: See more items in
content: Work and Industry: Electricity
label: See more items in
content: Telegraph Registers
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content: Communications
creditLine: label: Credit Line
content: from Oberlin College, Dept. of Physics, thru David L. Anderson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324273
label: catalog number
content: 324273
label: accession number
content: 253039
objectType: label: Object Name
content: telegraph receiver
label: Object Name
content: telegraph register
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: brass (overall material)
label: Physical Description
content: copper (overall material)
label: Measurements
content: overall: 9 in x 6 in x 13 in; 22.86 cm x 15.24 cm x 33.02 cm