The collection documents civil engineer Horatio Allen's work with the Croton Aqueduct Board in New York, and with the New York Bridge Company.
The collection contains drawings of mine machinery and buildings, including buildings within the company town such as worker housing and churches; photographs, including glass plate negatives, of mining machinery, operations, and employees; papers relating to Eckley B. Coxe's patents; legal papers; maps, including real estate maps, contour and topo...
The collection documents inventor and dentist Charles H. Land and consists of correspondence, financial records, patent records, articles, printed material, writings, sermons and photographs.
The collection documents personal correspondence between Reuben Moffat and his father, John Little Moffat. The materials consist primarily of letters written during the year 1852 and detail Reuben Moffat's attempts to obtain a patent for his electric gold washer and magnetic separator invention.
These records contain material on the Arthur collection of clocks and watches. Includes publications, inventories, manuscripts, reports, photographs, advertisements, catalogues, newspaper clippings, patents, and business records; correspondence files of NYU curators concerning the administration of the collection; a watch record book of sales of Ez...
18th, 19th, and 20th century material deposited with the Medical and Chirurgical Faculty of the State of Maryland, chiefly relating to the practice of medicine in the state. Includes correspondence, papers, certificates, diplomas, patents, maps, notebooks, clippings, prescriptions, pamphlets, photocopies of documents, scrapbooks, photographs, and p...
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, which dates from the 19th century, contains 30 books written by or concerning African-Americans. The books are largely non-fiction and include material relating to African-American churches and evangelists, fraternal organizations, prominent members of the African-American Community, former slaves, education and self-improvement. Also present are several volumes of poetry, a tax ledger and a volume concerning patents.
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.
Papers relating to Haring's development of cotton picking machines, 1894-1930.