US Patent: 970,209
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| Wrench
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 26, 1910 |
| Granted: |
Sep. 13, 1910 |
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Patent Pictures:
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Alix and Bela W. Fresko patent September 13, 1910 |
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Stan Schulz
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Description: |
| The patent is an improvement on the patentee's Sept. 28, 1909 patent (no. 935,482). A crank on the end of the handle turns an internal cam disk which imparts motion to the ratchet head by means of a plunger. A coiled spring attached to the plunger pulls it back against the cam disk.
The driven head could be used as a wrench, or hold wrench sockets or drill holders. |
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