Hartmann Differential Wool Spinning Mule
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A one-page trade notice from The Melliand describing the new Hartmann Differential Wool Spinning Mule, a self-acting mule. The main shaft and spindle driving rope turn constantly in one direction at constant speed, with a differential motion on the cylinder shaft. This avoids the losses of time and capacity from stopping and reversing the spindles during backing-off. It includes a photograph of the machine, a mention of German and foreign patents, and an address for obtaining a pamphlet from the Hartmann representative in New York.
- Type
- Article
- Date
- May 1931
- Language
- English
- Pages
- 1
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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