Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Sperry (ELMER AMBROSE an American)

ELMER AMBROSE, an American electrical engineer, born at Cortland, N. Y., in 1860. He was educated at the State Normal and Training School, Cortland, N. Y., and at Cornell University. He was the founder of the Sperry Electric Co., of Chicago; of the Sperry Electric Railway Co., Cleveland, Ohio, and of the Sperry Gyroscope Co., Brooklyn, N. Y. An inventor of great originality, he held over four hundred patents issued in the United States and in Europe. Some of these covered his gyro-compass, aeroplane and ship stabilizers, fire-control apparatus, electric chain mining machinery, etc. He was a member of the Naval Consulting Board and of many scientific societies. His inventions brought him medals at exhibitions and from several scientific societies.

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