US Patent: 598,609
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| Ratchet Wrench
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Patentee:
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| John Gilbertson (exact or similar names) - Hawley, MN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 10, 1897 |
| Granted: |
Feb. 08, 1898 |
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Patent Pictures:
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John Gilbertson patent February 8, 1898 |
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Stan Schulz
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Description: |
| The "ratchet bolt" has a compression spring held in place by a threaded cap which has slots to hold the lever handle which selects "tighten" or "loosen" operation.
The offset in the handle is important for the application for which the wrench is intended -- "nuts on spindles." |
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