US Patent: 417,968
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| Wrench
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Patentee:
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| Arthur J. Barber (exact or similar names) - Auburn, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 09, 1888 |
| Granted: |
Dec. 24, 1889 |
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Patent Pictures:
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Arthur J. Barber patent December 24, 1889 |
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Stan Schulz
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Description: |
| Quick and screw-adjust adjust nut wrench with jaw surfaces to bear on the "flats" or "corners" of nuts. The adjusting means is a spring-loaded pawl on the side of the movable jaw that engages a threaded shaft that extends through the handle to a knob on the end. |
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