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Show more15 typed letters between Edward Campbell and Charles F., Sr., regarding Campbell's work in magnetism, Brush's work in gravitation, and the similarities between the two. Also discuss Dr. See's possibly stealing Brush's gravitation theory. 3 typed and handwritten letters from Eugenie Mereness informing Brush of Campbell's death, Brush sending sympathies to Mrs. Campbell, and Mrs. Campbell thanking Brush for his letter.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 3
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Charles F. Bru
Show moreHandwritten laboratory notes by Charles F. Brush on change of weight experiments which are follow up experiments to free fall experiment
Charles F. Brush, Sr., Papers
Series 2: Laboratory Notes (1880-1929)
Box 8
Folder 1
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Show moreTyped and handwritten draft, notes, and research materials relating to chapter 16 of biography of Charles F. Brush, Sr., written by Margaret Richardson, regarding Brush, his papers written for and activities with The American Philosophical Society between 1910 and 1929
Charles F. Brush, Sr., Papers
Series 11: Margaret Richardson's Biography of Charles F. Brush (1948-1954)
Subseries 1: Chapters
Box 33
Folder 9
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Show moreTyped and handwritten draft, notes, and research materials relating to chapter 17 of biography of Charles F. Brush, Sr., written by Margaret Richardson, regarding Brush and his experiments with his theory of gravitation
Charles F. Brush, Sr., Papers
Series 11: Margaret Richardson's Biography of Charles F. Brush (1948-1954)
Subseries 1: Chapters
Box 33
Folder 10
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Show moreTyped and handwritten draft, notes, research materials, and newspaper clippings relating to chapter 19 of the biography of Charles F. Brush, Sr., written by Margaret Richardson, regarding his achievements in the fields of electrical science and gravitation, and related awards and memberships he earned for his achievements
Charles F. Brush, Sr., Papers
Series 11: Margaret Richardson's Biography of Charles F. Brush (1948-1954)
Subseries 1: Chapters
Box 34
Folder 1
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Show moreMost of the letters here were written between Charles F. Brush, Sr., and his family members, most notably his son, Charles F. Brush, Jr., and his son’s wife, Dorothy Brush (Walmsley). Unfortunately, not much correspondence exists before 1910. In the letters (dated between 1911 and 1929) between Brush, Sr., his son, and daughter-in-law, they discuss their lives in Cleveland and elsewhere, their travels, scientific experiments, school, and grandchildren. The correspondence also documents how Dorothy and Brush, Sr., coped with the death of Charles F. Brush, Jr., in 1927. The correspondence files also highlight Brush’s efforts to prove his theory of gravitation. This theory suggested that the behavior of gravity could be explained by the action of ether. Ether was thought to be a gas which many believed occupied space in which light traveled. Thus, Brush attempted to prove the existence of ether. After many years of conducting his own experiments in his Euclid Avenue home’s basement laboratory to prove the existence of ether, Brush contracted scientists at the U.S. Bureau of Standards and General Electric to further his work. As the correspondence showed, the experiments done at the U.S. Bureau of Standards and General Electric could not prove, to their satisfaction, the existence of ether.
Charles F. Brush, Sr., Papers
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Show moreThe laboratory notes deal with his storage battery experiments, as well as his later quest to prove his theory of gravitation. Records of note include a 240 page journal which Brush attempts to recount the details of his early experiments in developing the original arc lighting technology in the 1870s.
Charles F. Brush, Sr., Papers
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Show moreArranged chronologically, this series contains reprints, as well as some typed and handwritten manuscripts, of scientific articles written (and published) by Brush over a 50 year time span. Most articles deal with Brush’s experiments to support his theory of gravitation, though, there are a few articles that discuss his groundbreaking work with the arc light. Many items were damaged by fire.
Charles F. Brush, Sr., Papers
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Show moreTyped and handwritten correspondence, typescript, illustrations, blueprint, publications, flyers, newspaper clippings, postcard and internal memorandums, from years 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, and 1950, related to the life, career, interests, legacy and scientific works of Charles F. Brush, Sr. Enclosed illustrated catalog and pricelist for the Pratt and Whitney Company Small Tool Department dated 1889, enclosed financial receipts from the Pratt and Whitney Company to Charles F., Sr., dated 1892. Internal memorandums authored by Ruth Sebastian, secretary to Charles Baldwin Sawyer. Letters authored by or written to Sawyer, W. S. Culver, R. G. Perkins, Alexander C. Dick, Peter I. Wold, Nora H. Schirg, Fred N. Acker, E. A. Harrington, George R. Stran, Frazier Hunt, David Sanders Clark, E. Philip Earl, Charles N. Moore, Frederick J. Root, Walter L. Flory, R. M Bushey, Leatha Logan, Brooks Shepard, John W. Love, J. C. Foster, Shelden Cary, F. E. Senftle. Clipping from the London based paper entitled, The Economist. Illustrated catalog and price list for the Pratt and Whitney Company Small Tool Department, dated 1889. Notes on Presentation of the Paper, by Peter Wold, on Mass Weight Ratio, 1931. Typescript of paper by E. A. Harrington entitled, Further Experiments on the Continuous Generation of Heat in Certain Silicates, including illustrations, no date. Program with speech notes for National Inventors Day, dated 1936. Blueprint for second floor of a building on Euclid Avenue, Cleveland, Ohio, showing location of various pieces of apparatus requested by Sawyer, dated 1939
Charles F. Brush, Sr., Papers
Series 10: Charles Baldwin Sawyer's Collection Related to Charles F. Brush (1911-1966)
Box 31
Folder 7
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Show morePublications, typed and handwritten correspondence and internal memorandums, from years 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, and 1964, related to the life, career, interests, legacy and scientific works of Charles F. Brush, Sr. Internal memorandums authored by Ruth Sebastian, secretary to Charles Baldwin Sawyer. Correspondence and notes authored by or written to Brush Development Company, Charles Baldwin Sawyer, Frank S. Koral, Donald L. Millham, Ruth Sebastian, Roselyn Weir, The Franklin Institute, Henry B. Allen, T. Townsend Brown, D. N. Merrell, H. F. Bulkley, Daphne Humphreys, Margaret M. Butler, William Saxe, Mary C. O'Hair, R. H. Daisley, Gertrude Hassler, H. C. Meinzer, James L. Myers, William Ganson Rose, James S. Howard, Alan Kimber, S. Winifred Smith, William E. Scheele, Stella Marty, S. Stockton, A. D. Schwope, Kenneth L. Gebhart, Theodore J. Horvath, Ray H. Luebbe, Douglas P. Brush. Harold Wooster, Inez Budd, Oliver Emerson, Ralph Mueller, John D. Valentine, Ruth Sebastian. Publications, and clippings from publications including Upjohn News, Volume 7, Number 2, 1952. A General Electric Scrapbook History with Commentary, 1953. The Foundation, Volume 19, Number 2, October, 1954. General Electric Share Owners Quarterly, October 25, 1954. Ohio Historical Society, Museum Echoes, August, 1955. Time Magazine, January 18, 1960. Common subjects include Thomas Alva Edison and Brush, as well as exhibitions of materials built by Brush and the Brush Electric Company, Brush electric lighting in Wabash, Indiana, efforts by Sawyer to Have a Bibliography of Brush Written, 1948-1954, donating Brush materials to The Cleveland Museum of Natural History, and scientific research done in relation to Brush, Sr. and his experiments in gravitation
Charles F. Brush, Sr., Papers
Series 10: Charles Baldwin Sawyer's Collection Related to Charles F. Brush (1911-1966)
Box 31
Folder 8
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Show more3 Typed letters between Charles F., Sr. and Alfred Cowles regarding the life and work of German physicist Alfred H. Bucherer in relation to Brush's work in gravitation and Einstein's theory of relativity. Includes reprint of Bucherer's work entitled The Movement of Planets According to the Quantum Theory, and Critical Comment on Einstein's Gravitational Equations. English translation printed by McIlroy and Emmet, New York, 1923.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 6
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Show moreTwo typed and one handwritten manuscript related to the paper by Charles F. Brush, Sr., entitled Discussion of "A Kinetic Theory of Gravitation," which further explains the theory he expounds in his paper, A Kinetic Theory of Gravitation, that gravitation is due to intrinsic energy of the ether. Originally read on April 24, 1914. Includes publication of paper from the Proceedings of the American Philosophical Society, January to May, 1914, a typed copy of the article abstract and handwritten copy of article abstract, both with no date
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 25
Folder 13
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Show moreTwo reprints of the article by Charles F. Brush, Sr. entitled, Discussion of a Kinetic Theory of Gravitation, II, and Some New Experiments in Gravitation, from the Proceedings of the American Philosophical Society, Volume 60, Number 2, dated 1921. Originally read April 22, 1921. Brush conducts experiments and reports his findings promoting his theory that energy in all its forms comes in some way from the ether and is energy of the ether
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 6
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Show moreTwo reprints of the second paper of the article by Charles F. Brush, Sr. entitled, Discussion of a Kinetic Theory of Gravitation II and Some New Experiments in Gravitation, from the Proceedings of the American Philosophical Society, Volume 61, Number 3, dated 1922. Brush expands upon his findings of the previous paper on the kinetic theory of gravitation, and experiments further to prove the mass to weight ratio relationship differs in different substances
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 7
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Show moreTwo reprints of the third version of the article by Charles F. Brush, Sr. entitled, Discussion of a Kinetic Theory of Gravitation II, and Some New Experiments in Gravitation, from the Proceedings of the American Philosophical Society, Volume 62, Number 3, dated 1923. Originally read April 20, 1923. Brush continues his experiments with weights, using different metals and comparing their velocity when falling
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 8
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Show moreTwo reprints, three typescripts, and one handwritten manuscript for the article by Charles F. Brush, Sr. entitled, Discussion of the Kinetic Theory of Gravitation III, from the Proceedings of the American Philosophical Society, Volume 65, Number 3, dated 1926. Originally read April 23, 1926. Brush presents some experimental evidence supporting the theory of continual generation of heat in some igneous rocks and minerals, and the relation of this to the internal heat of the earth and presumably the sun. Tests conducted on machinery at the Sandusky Cement Company
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 11
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Show moreOne reprint, one typescript abstract, two handwritten manuscripts for the article by Charles F. Brush, Sr. entitled, Discussion of the Kinetic Theory of Gravitation IV: Correlation of Continual Generation of Heat in Some Substances and Impairment of their Gravitational Acceleration. Reprint from the Proceedings of the American Philosophical Society, Volume 67, Number 2, dated 1928. Handwritten manuscripts dated April, 1928. No date on typescript abstract. Brush presents a summary and further evidence from his experiments in gravitation
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 15
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Charles F. Bru
Show more6 diagrams, 8 black and white photographs, and 2 photometry photographs relating to gravitation experiments performed by Charles F., Sr.
Charles F. Brush, Sr., Papers
Series 13: Photographs (1880s-1954)
Box 39
Folder 5
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Show more7 Typed and handwritten letters between Charles F., Sr., and Richard Fay, in 1920 Brush asking Fay to attempt to put mathematical equations to his gravitation theory and Fay's equations, in 1925 and 1926 Fay writes with refined equations and new thoughts.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 7
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Charles F. Brush, Sr., Papers
Series 2: Laboratory Notes (1880-1929)
Box 7
Folde
Show moreHandwritten laboratory notes by Charles F. Brush on free fall experiments
Charles F. Brush, Sr., Papers
Series 2: Laboratory Notes (1880-1929)
Box 7
Folder 5
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