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Edison's Patents - The Edison Papers The patent system, established under the U.S. Constitution, was intended to provide ... represented improvements or variations of existing technologies. ... 2.
Guide to Motion Picture Catalogs - The Edison Papers Rutgers, The State University of New Jersey The Thomas Edison Papers ... A Guide to Motion Picture Catalogs by American Producers and Distributors, ... 3.
Outside Repositories & Collections - The Edison Papers Essex County Hall of Records, Newark, N.J.: Office of the County Clerk -- Records of the Circuit Court · Office of the County Register of Deeds and ... 4.
00879859; 1908-02-25; 1908-02-25 File Format: PDF/Adobe Acrobat - View as HTML rolled sheet metal increases very rapidly as the thickness of the sheet decreases, so that in case of very thin sheets, the original cost ... 5.
Chronology: 1879-1931 - The Edison Papers Jan-Apr, Conducts experiments on squirted cellulose filaments for incandescent lamps at the Edison Lamp Works; continues this work at the West Orange ... 6.
00264650; 1882-09-19; 1882-09-19 File Format: PDF/Adobe Acrobat - View as HTML electric lamp iu the process of exhaustion, s being its carbon filament and n the exhaust-. 30 tube leading to the Sprengel air-pump. ... 7.
00133019; 1872-11-12; 1872-11-12 File Format: PDF/Adobe Acrobat - View as HTML in Electrical Printing-Machines ; and the fol- ... of the machine; and Big. 2 is an elevation, par- ... electro-magnets h and the connections from the ... 8.
00493858; 1893-03-21; 1893-03-21 File Format: PDF/Adobe Acrobat - View as HTML transmission of large powers at high velocities ... frame are mounted magnetic rollers e havin" ... 30 used to complete the magnetic circuit between ... material such as the laminated steel belt de-. 9.
Location Text and List of Documents - The Edison Papers Other printed promotional material can be found in the National Phonograph Company Records, Edison Storage Battery Company Records, and other record groups ... 10.
Tinfoil Phonograph - The Edison Papers Instead of paraffined paper, Edison used a piece of tin foil wrapped around the cylinder as a recording surface. The first phonograph had separate recording ... |
