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Spencer Heath

American academic (1876–1963)

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Through Invention, Manufacturing and Horticulture

Life and technical career

Heath graduated from the Corcoran Scientific School in Washington, D.C., studying electrical and mechanical engineering. While working for the Navy Department he earned law degrees at National University Law School. In 1898 he married Johanna Maria Holm, a suffragist and friend of Susan B. Anthony. They had three daughters.

As a patent lawyer and engineering consultant his clients included Simon Lake, inventor of the even-keel-submerging submarine, and Emile Berliner, inventor of the flat-disk phonograph record. Heath helped Berliner design and build the first rotary engine blades used in helicopters. Heath founded the American Propeller Manufacturing Company in 1909 and developed and first mass-produced airplane propellers, including 70 percent of the propellers used by Americans in World War I. In 1922 he demonstrated the first engine-powered and controlled, variable and reversible pitch propeller.

In 1929 he sold his patents and facilities to Bendix Aviation Corporation and retired to work on projects in horticulture and the natural and social sciences, including research with the aim of establishing the basis for an authentic natural science of society.

His articles on aeronautical engineering were published by the Journal of the American Society of Naval Engineers, the Journal of the Franklin Institute and other technical journals. International Who's Who listed him in 1947-1949 and Who's Who in the East in 1948–1951.

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