Mechanism for Jacquard Looms, US Patent No. 1773528
Sample pages
Page 1, at reduced quality. Open the document to read every page in full.
US Patent 1,773,528, granted 19 August 1930 to Charles A. Fisher and Cletus J. Ketner of Kannapolis, North Carolina, assignors to Cannon Mills Company. It describes a Jacquard card cylinder that advances in small steps of one row of perforations instead of a whole card, so one card serves 8 or 12 picks when weaving narrow figures, saving about 90% of cards. The mechanism uses a ratchet, pawl, and detent cam, and the cylinder has continuous circumferential grooves in place of individual holes so vertical misalignment with the needles cannot cause defects. The scan has two sheets of drawings, the specification, and seven claims.
- Type
- Patent
- Date
- August 19, 1930
- Language
- English
- Pages
- 6
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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