US Patent: 137,310
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Wrenches
Double-Action Wrench
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Patentee:
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| Peter E. McIntosh (exact or similar names) - Chicago, IL |
| USPTO Classifications: |
| 81/61 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 04, 1872 |
| Granted: |
Apr. 01, 1873 |
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Patent Pictures:
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Peter E. McIntosh Pat. April 1, 1873 |
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Stan Schulz
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Description: |
| "Pumping" the side handle imparts motion to the ratchet through two pawls which alternately engage teeth on the ratchet. |
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