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- Charles F. Brush, Sr. Papers
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- Charles F. Brush, Sr., Papers: Series 09: Brush Companies
Charles F. Brush, Sr., Papers: Series 09: Brush Companies
Show moreTyped contracts of employment and other contracts and correspondence related to employees of the Brush Laboratories Company. Contracts outline duties, pay, stock options, and tenure for the employees, as well as a confidentiality clause outlining inventions or discoveries made or developed by the employee. Contracts for Theodore C. Brown, Melvin R. Jenney, Charles Baldwin Sawyer, I. N. Zavarine, Nelson P. Tapp, Bengt Kjellgren, Robert T. Cleveland, John J. Talaj, Raymond T. Sawyer, Jr., J. Kent Thompson, Frank O Dea, William J. Cain, Clover Tryon, Douglas Mackey, F. A. Truesdell, L. Wayne Anderson, Leonard H. Schaefer, Mary F. Gillette, and Roy Krivanek covering years 1921, 1925, 1931, 1932, 1933. Resignation for Jenney, dated 1922. Mutual Release form signed by Browne, May 1, 1925. Correspondence includes typed letter from W. R. Kiefer, attorney at law, to J. Baldwin Sawyer, dated April 30, 1925. Typed letter from Lloyd L. Evans to Brush Laboratories, dated March 26, 1926.
Charles F. Brush, Sr., Papers
Series 9: Brush Companies (1880s-1933)
Subseries 1: The Brush Laboratories Company (1921-1933)
Box 29
Folder 12
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Show moreNotarized letter with illustrations by P. L. Patterson, signed by Patterson and Chester B. Leott, notary public, May 17, 1933. Describes the Hoopes Aluminum Refining Process, created by William Hoopes and Francis C. Frary, in which an alloy with aluminum is electrolyzed using the Hoopes Cell in order to separate the aluminum from the other metals, and how Patterson plans to apply this method to beryllium refining
Charles F. Brush, Sr., Papers
Series 9: Brush Companies (1880s-1933)
Subseries 1: The Brush Laboratories Company (1921-1933)
Box 29
Folder 13
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Show moreTyped correspondence, typed and signed forms, handwritten notes and illustrations relating to Brush Laboratories Company and Piezo electrical crystals. Typed letter from Edward R. Alexander to Charles F., Jr., dated December 14, 1926, regarding patents for Brush Laboratory Piezo electrical crystals and related technology. Typed response from Charles F., Jr. to Alexander, dated December 16, 1926. Nineteen separate typed and signed forms, dated 1930, 1931, 1932, or 1933, stating that the signer has been shown, in confidence, the experimental works being carried out at Brush Laboratories on Piezo Electric Crystals or machines using these crystals. Handwritten notes and illustrations regarding Piezo electric technology, no date, unknown author
Charles F. Brush, Sr., Papers
Series 9: Brush Companies (1880s-1933)
Subseries 1: The Brush Laboratories Company (1921-1933)
Box 29
Folder 16
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