Silk Reeling Machinery, US Patent No. 334621
Sample pages
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US Patent No. 334,621, granted January 19, 1886 to Edward W. Serrell Jr. for an improvement to an automatic silk-reeling machine. The specification describes a regulating lever carrying two small pulleys, placed so that tensions from the croisure and from cocoon unwinding cancel out and the lever responds only to changes in thread size. The lever closes an electric circuit that adds a cocoon filament when the thread weakens. The document has a patent drawing page followed by the two-page specification and claim.
- Type
- Patent
- Date
- January 19, 1886
- Language
- English
- Pages
- 3
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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