US Patent: 186,197
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Wrench
Improvements Pertaining to Adjustable Wrenches
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Patentee:
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| Philip Chapin, Sr. (exact or similar names) - Pine Meadow, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 05, 1876 |
| Granted: |
Jan. 16, 1877 |
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Patent Pictures:
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Philip Chapin, Sr. Pat. January 16, 1877 |
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Stan Schulz
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Description: |
| The wrench combines quick and screw-adjustment. A rotating cam at the back of the movable jaw engages or disengages the adjusting screw. |
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