This collection documents a patent dispute between the S. S. White Dental Manufacturing Company and the Williams Typewriter Company.
The papers document the professional career of mechanical engineer, Charles Richardson Pratt. The papers include correspondence, patents, patent application materials, agreements, photographs, publications, and blueprints for many of Pratt's inventions, especially his work on elevators.
Letter, written by Carl Auer Von Welsbach to the Austrian Gas and Electric Company, February 23, 1890. It records his sale to that utility of the gaslight mantle he invented.
The papers contain correspondence, reports, drawings, blueprints, cost estimates, contracts, specifications, regulations, legal documents, photographs, profiles, diagrams, clippings, and publications concerning projects which Forgie worked on, especially the Holland and Lincoln Tunnels, the Midtown Hudson Tunnels in New York City. Also included are...
The collection consists of United States, Canadian, Mexican and other foreign patents issued to William E. Woodard from 1909 to 1949. The patents are for Woodard's developments in steam and electric locomotive design.
Papers document the life of Elmer Gates (1859-1923), an independent American inventor and psychologist. Gates developed ideas related to experimental psychology and inventions in fields such as metallurgy, electricity, microscopy, X-rays, and pedagogy. Papers include correspondence, photographs, patents, articles and clippings, writings, and estate documents.
This collection consists of three patents issued to Louis Gathmann.
The collection documents Emile Bachelet, inventor of electro-magnetic therapeutic devices for the treatment of rheumatism.
Correspondence includes about 3 dozen handwritten letters to John H. Bacon from Whitney. Bacon apparently undertook the task of collecting documentation of Whitney's career in the 1950s. Another 30 letters involve former associates of Whitney's, particularly Nathaniel Henry Cooledge (known as "Oliver") who was associated with Whitney as his trust...
Wurtz's scheme, presented in a report to the stockholders, was a new method for the dry distillation of non-caking coal to obtain liquid oils and paraffin. Included in this box are: the report to the stockholders of the Union Chemical Manufacturing Co., 1883; patent specifications, 1881; correspondence with the Patent Office, prospectus on coal distillation, 1885; a notebook of minutes from meetings of Union Chemical Manufacturing Co., 1881-1883.