US Patent: 102,307
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Wrench
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Patentee:
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Johan Fredrik Nordquist (exact or similar names) - Gottenburg, Sweden |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Apr. 26, 1870 |
Patent Pictures:
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1 | 2
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Johan F. Nordquist patent April 26, 1870 |
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Stan Schulz
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Description: |
The movable jaw has fine teeth on an inner face to mesh with similar fine teeth on the main bar. The adjustment is held by a cam-lever which applies pressure on a small piece in the back of the movable jaw. Canadian patent CA-2,460 of June 14, 1873 has a similar cam-lever without an intermediate block between the cam and wrench shank.
Some collectors suggest an unmarked malleable iron quick adjusting wrench with a toggle cam bearing directly on the back of the main bar is related to this patent, but the resemblance may be coincidental - 4 inch & 9 inch examples shown in 2nd image. |
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