Telegraph Register

Description (Brief)
George M. Phelps at Western Union designed this telegraph register, one of many types he designed for the company. This unit recorded signals from messenger call boxes, small telegraph transmitters that office managers used to summon telegraph delivery service when needed. 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
maker
Phelps, George M.
Physical Description
wood (overall material)
glass (overall material)
copper (overall material)
brass (overall material)
Measurements
overall: 8 3/4 in x 13 1/2 in x 6 1/2 in; 22.225 cm x 34.29 cm x 16.51 cm
ID Number
EM*331058
accession number
294351
collector/donor number
100-340
catalog number
331058
subject
Communication, telegraph
See more items in
Work and Industry: Electricity
Communications
Telegraph Registers
Data Source
National Museum of American History, Kenneth E. Behring Center

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