US Patent: 630,421
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| Wrench
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Patentee:
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| Frederick W. Stewart (exact or similar names) - Coldwater, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 01, 1898 |
| Granted: |
Aug. 08, 1899 |
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Patent Pictures:
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Frederick W. Stewart patent Aug. 8, 1899 |
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Stan Schulz
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Description: |
| Quick adjust wrench with an adjustable grip pressure feature in the movable jaw. The movable jaw contains a compression spring which tends to keep teeth on the adjusting dog engaged with rack teeth on the main shank. There is a secondary screw adjustment to move the adjusting dog's position in the body of the movable jaw.
Corresponding Canadian patent CA-65,272 was granted Dec. 9, 1899. |
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