Henry E. Warren

Henry Ellis Warren (May 21, 1872 – September 21, 1957) was an American inventor credited with invention of the first synchronous electric clock which kept time from the oscillations of the power grid in 1918 as well as with 134 other inventions. ^{[1][2][3][4][5]} Warren founded Warren Telechron Company in 1912 which later was acquired by General Electric in 1943.^[1] Warren was noted as "the father of the electric time".^[5] Just between 1916 and 1926 the company sold 20 million clocks.^[1] The clocks remained popular into the 1950s. In 1940 he also invented the "singing clock" which instead of a pendulum had a vibrating metal string.^[1]

Notable awards

• 1935: Lamme Medal from the American Institute of Electrical Engineers^[1]
• 1935: John Price Wetherill Medal from the Franklin Institute^[1]

Early Life and Education

Warren was born in Boston and attended the Allen School. Warren graduated from Massachusetts Institute of Technology in 1894 with degree of Bachelor of Science in Electrical Engineering.^[1]

Some of Telechron clocks

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  Telechron 355 "Cathedral" (1927–32)

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  Telechron 2H07-Br "Administrator" (1937–40)

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  Telechron 7F72 "Heralder" (1930s)

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  Telechron 8B23 "Register" (1946–48)

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  Telechron 7H141 "Airlux" (1946–57)

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  Telechron 7H257 "Dimension" (1954–59)

See also

• Warren's talk on modern clocks

References

1. New York Times:HENRY E. WARREN, INVENTOR, 85, DIES; Engineer Designed Telechron Electric Clock and Device Used to Track Stars;September 22, 1957,
2. The Warren Conference Center and Inn;The History of Henry Warren
3. Electric Clock Patent;Patent number: 1283431;Filing date: Aug 21, 1916;Issue date: Oct 29, 1918
4. WARREN TELECHRON MASTER CLOCK TYPE A
5. The Encyclopedia of American Biography;Henry Ellis Warren;