Telegraph Register
date: label: date made
content: ca 1865
name: label: maker
content: George H. Bliss & Co.
notes: label: Description (Brief)
content: Made by George H. Bliss and Company of Chicago, this telegraph register shows the typical design in use at the time of the U. S. Civil War. 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 Dearborn Observatory, Northwestern University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.318494
label: catalog number
content: 318494
label: accession number
content: 235070
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: copper (overall material)
label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 7 in x 4 1/2 in x 11 3/4 in; 17.78 cm x 11.43 cm x 29.845 cm