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Machine for Copying Patterns for Jacquard Cards, US Patent No. 696708
Machine for Copying Patterns for Jacquard Cards, US Patent No. 696708
Patent · 5 pages
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.

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