US Patent: 1,261,540
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| Wrench
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Patentee:
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| Hughey V. Hughes (exact or similar names) - Miami, AZ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 14, 1917 |
| Granted: |
Apr. 02, 1918 |
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Patent Pictures:
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Hughey V. Hughes patent April 2, 1918 |
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Stan Schulz
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Description: |
| Open end wrench with opening size adjustable by shifting position of wrench halves. This adjustment can be accomplished by one hand. The halves are connected by a central shaft and compression springs. The adjustment is held by meshing rack teeth and flat compression springs to keep the rack teeth meshed.
Cited in patent no. 2,484,492. |
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