US Patent: 597,101
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| Wrench
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Patentee:
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| Francis Otto Collings (exact or similar names) - Vancouver, WA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 03, 1897 |
| Granted: |
Jan. 11, 1898 |
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Patent Pictures:
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Francis Otto Collings patent January 11, 1898 |
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Stan Schulz
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Description: |
| The adjustable jaw is of the meshing rack teeth type. The spring catch keeps the jaw from swinging out of adjustment.
The claim includes mention of the accompanying brace, and shank extension with transverse holes which would allow the piece to serve as a cross-handle. |
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