US Patent: 1,453,898
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| Wrench
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Patentee:
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| Frederick E. Walden (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 18, 1920 |
| Granted: |
May 01, 1923 |
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Patent Pictures:
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Frederick E. Walden patent May 1, 1923 |
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Stan Schulz
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Description: |
| Application renewed Nov. 11, 1922.
The spring of the loop provides enough flex for ratchet action. Compare these designs to those in patent no. 1,437,458. In this design, the extra "lip" is to help with holding hexagonal nuts or bolt heads.
These could be made of square or round rod; the "S" form in Fig. 5 could also be made of channel iron. |
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