Warren A. Marrison | |
|---|---|
| Born | Warren Alvin Marrison
[1] 21 May 1896
Inverary, Ontario, Canada |
| Died | 27 March 1980 (aged 83) Palo Verdes Estates, California
[2] |
| Alma mater | Harvard University |
| Known for | Quartz clock |
| Scientific career | |
| Fields | Horology |
| Institutions | Bell Labs |
Warren A. Marrison (21 May 1896 – 27 March 1980) [2] was a Canadian engineer and inventor. Marrison was the co-inventor of the first Quartz clock in 1927. [3]
Early life and education
Marrison was born in Inverary, Frontenac county, Ontario. [2] He studied at Queen's University in Kingston, Ontario, where he was part of a new program in engineering physics. He graduated in 1920 with a bachelor's degree in physics engineering; [4] his studies were interrupted by World War I when he served in the Royal Flying Corps as a radio technician. [2]
Beginning in 1921, he studied at Harvard University, ultimately receiving a master's degree. [2] He worked at first for Western Electric in New York City, but moved to Bell Laboratories in New York beginning in 1925. [2]
Quartz clock
At Bell Labs in New York, Marrison was working on frequency standards using quartz as a reference. It was in 1927 that he developed the first quartz clock while working with J.W. Horton. The clock used a block of crystal, stimulated by electricity, to produce pulses at a frequency of 50,000 cycles per second. [5] A submultiple controlled frequency generator then divided this down to a usable, regular pulse that drove a synchronous motor. [5] While this first version of the clock was crude; Morrison produced a more refined version in 1928. [2] A New York Times headline in October 1929 reported "Electrified Quartz Crystal Displaces Clock Pendulum". [6]
Legacy and awards
The invention would lead AT&T, the subsequent owners of Bell Labs, to develop a timepiece division called Frequency Control Products. [7] This would eventually become the company Vectron International. [7]
In 1947 Marrison was awarded a Gold Medal from the British Horological Institute. [8] In 1955 the Clockmakers Company awarded him the Tompion Medal. [2]
In 2011 Marrison was inducted into the Inventor's Hall of Fame. [9]
References
- ^ Paul, Larry R. (2005). Made in the Twentieth Century: A Guide to Contemporary Collectibles. Scarecrow Press. ISBN 978-0-8108-4563-3.
- ^ a b c d e f g h Day, Lance; McNeil, Ian (2002-09-11). Biographical Dictionary of the History of Technology. Routledge. ISBN 978-1-134-65019-4.
- ^ Johnston, Andrew Kenneth; Connor, Roger; Stephens, Carlene E.; Ceruzzi, Paul E. (2015). Time and Navigation: The Untold Story of Getting from Here to There. Smithsonian Institution. ISBN 978-1-58834-491-5.
- ^ "History | Department of Physics, Engineering Physics & Astronomy". www.queensu.ca.
- ^ a b Marrison, W. A. "The Evolution of the Quartz Crystal Clock". IEEE UFFC.
- ^ "ELECTRIFIED QUARTZ CRYSTAL DISPLACES CLOCK PENDULUM". The New York Times. 1929-10-13.
- ^ a b "AT&T Archives: Quartz Crystal Growing". techchannel.att.com.
- ^ Marrison, Warren A. (1948). "The Evolution of the Quartz Crystal Clock*". Bell System Technical Journal. 27 (3): 510–588. doi: 10.1002/j.1538-7305.1948.tb01343.x.
- ^ "NIHF Inductee Warren Marrison Invented the Quartz Clock". www.invent.org.
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