Electrical Regulator for Reeling Silk from Cocoons, US Patent No. 202125
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US Patent No. 202,125, granted April 9, 1878 to Edward W. Serrell Jr. of Castleton, New York, for an electrical regulator for reeling silk from cocoons. It describes an electro-magnetic brake that stops the reel automatically when a silk filament breaks or runs out. Delicate wire lever-guides act as circuit-closers using mercury cups, and a switch lets the operator start or stop the reel. The document has a drawing sheet with four figures, the specification, and two claims.
- Type
- Patent
- Date
- April 9, 1878
- Language
- English
- Pages
- 3
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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