Specification of the Patent granted to Mr. James Mitchell for a Method of Manufacturing Cables, Hawsers, or Shroud-Laid Ropes, and Other Cordages, on a Scientific Principle
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Text of James Mitchell's 1792 English patent for making cables, hawsers and shroud-laid ropes by subdividing the cylindrical twists into many smaller 'selvagee' twists so that all yarns bear load more evenly. It explains the flaw Mitchell saw in conventional rope construction, the procedure for turning and uniting the subdivided twists, and the resulting strand counts for cable-laid and hawser-laid cordage. A plate with four figures illustrates the parallel-stretched twists, the finished cable, and marled and hand selvagees.
- Type
- Article
- Date
- 1799
- Language
- English
- Pages
- 8
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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