Improved Silk-Assorting Machine
Sample pages
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A February 1862 Scientific American article describing a silk-assorting machine patented by John E. Atwood and Lewis Leigh of Connecticut. It opens with a short account of the silkworm and cocoon, then explains why uniform thread size matters for sewing-machine silk. The machine passes thread over a stack of counterbalanced rollers that magnify size variations and trip a lever to stop winding so the operator can switch bobbins for three thread sizes. Engraved figures show front, section and detail views.
- Type
- Article
- Date
- February 1, 1862
- Language
- English
- Pages
- 2
- Archive notes
- Reduced to 85% to fit on page
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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