Hyatt, John Wesley

Hyatt, John Wesley, 1837–1920, American inventor, b. Starkey, N.Y. He is known especially for his development of celluloid with his brothers, he began its manufacture in 1872. He also invented the Hyatt filter, a means of chemically purifying water while it is in motion a widely used type of roller bearing a sugarcane mill superior to any previously used a sewing machine for making machine belting and a substitute for ivory in the manufacture of billiard balls and other articles.

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