Object Details
- Description (Brief)
- This telegraph register shows a harp design made by James Clark of Philadelphia. 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
- Data Source
- National Museum of American History
- maker
- Clark, James J.
- Credit Line
- from Western Union Corporation
- Physical Description
- wood (overall material)
- brass (overall material)
- copper (overall material)
- Measurements
- overall: 8 3/4 in x 13 in x 5 in; 22.225 cm x 33.02 cm x 12.7 cm
- Object Name
- telegraph receiver
- telegraph register
