Machine for Copying Patterns for Jacquard Cards, US Patent No. 696708
Sample pages
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US Patent No. 696,708, granted April 1, 1902 to John T. Bolton of Fall River, Massachusetts, for a machine that copies Jacquard design patterns onto punched paper strips. A selenium cell on a case moves square by square over a design laid out on a board, and its changing resistance with light and dark squares controls a relay and electromagnets that decide which punches strike. The document has two sheets of drawings (Figs. 1-5), the specification, and four claims.
- Type
- Patent
- Date
- April 1902
- Language
- English
- Pages
- 5
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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