Elmer Ambrose Sperry

Elmer Ambrose Sperry

Infobox Engineer


image_size = 150px
caption = PAGENAME
name = PAGENAME
nationality = United States
birth_date = October 12, 1860
birth_place = Cortland, New York
death_date = June 16, 1930
death_place = Brooklyn, New York
education =Cornell University
spouse =
parents =
children =
discipline =
institutions =
practice_name =
significant_projects = gyroscopic compasses
significant_design =
significant_advance =
significant_awards =

Elmer Ambrose Sperry (October 12, 1860June 16, 1930) was a prolific inventor and entrepreneur, most famous as co-inventor, with Herman Anschütz-Kaempfe of the gyrocompass.

Sperry was born at Cortland, New York, U.S.A.. He spent three years at the state normal school there, then a year at Cornell University in 1878 and 1879, where he became interested in dynamo electricity. He moved to Chicago, Illinois, early in 1880 and, soon after founded the Sperry Electric Company. In 1900 Sperry established an electrochemical laboratory at Washington, D.C., where he and his associate, Clifton P. Townshend, developed a process for making pure caustic soda from salt and discovered a process for recovering tin from scrap metal. Sperry experimented with diesel engines and gyroscopic compasses and stabilizers for ships and aircraft. In 1910 he started the Sperry Gyroscope Company in Brooklyn, New York; his first compass was tested that same year in USS|Delaware|BB-28. His compasses and stabilizers were adopted by the United States Navy and used in both world wars. In 1918 he produced a high-intensity arc lamp which was used as a searchlight by both the Army and Navy. After setting up eight companies and taking out over 400 patents, Sperry died in Brooklyn on 12 June, 1930.

His companies included:
*Sperry Electric Mining Machine Company, (1888);
*Sperry Electric Railway Company, (1894);
*Chicago Fuse Wire Company, (1900); and
*Sperry Rail Service (1911)a railroad defect detection company.
*Sperry Gyroscope Company (1910), founded to manufacture Sperry's development of the gyrocompass, originally invented by Herman Anschütz-Kaempfe in 1908. Sperry's first model was installed on the battleship USS "Delaware" in 1911.

The companies eventually evolved into the Sperry Corporation.

Sperry was also a founding member of the US Naval Consulting Board, 1915.

In 1916, Sperry joined Peter Hewitt to develop the Hewitt-Sperry Automatic Airplane, one of the first successful precursors of the UAV.

USS|Sperry|AS-12 was named for him, as was the annual Elmer A. Sperry Award for Advancing the Art of Transportation.

References

*Thomas P. Hughes, "Elmer Sperry: Inventor and Engineer" (Baltimore: Johns Hopkins University Press, 1971).
*Fahrney, Delmer S. (RAdm ret): "History of Radio-Controlled Aircraft and Guided Missiles"
*DANFS

External links

* [http://www.nytimes.com/learning/general/onthisday/bday/1012.html Obituary, New York Times, "Elmer Sperry Dies; Famous Inventor", June 17, 1930]
* [http://fi.edu/case_files/sperry_2524/ Elmer A. Sperry case file] at the Franklin Institute contains records concerning his 1914 Franklin Award for the gyroscopic compass
* for the gyroscopic compass, filed June, 1911; issued September, 1918
* [http://patft.uspto.gov/netahtml/PTO/search-bool.html US Patent search page, search for Elmer and Sperry in Inventor name, 1790-present, yields about 160 results--some recent ones are by EA Sperry Jr, ealiest ones not found]


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