Telegraph Register

Telegraph Register

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Description (Brief)
This telegraph register stamped with serial number 9092 was made by Knox & Shain, a noted Philadelphia maker of telegraph equipment. 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.
Location
Currently not on view
Object Name
telegraph receiver
telegraph register
recorder, Morse
date made
1877
maker
Knox & Shain
Physical Description
wood (overall material)
brass (overall material)
copper (overall material)
Measurements
overall: 7 1/2 in x 13 in x 6 in; 19.05 cm x 33.02 cm x 15.24 cm
ID Number
EM.331405
accession number
294351
collector/donor number
01-10
catalog number
331405
Credit Line
from Western Union Corporation
subject
Communication, telegraph
See more items in
Work and Industry: Electricity
Communications
Telegraph Registers
Data Source
National Museum of American History
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