US Patent: 1,436,049
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| Adjustable Wrench
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Patentee:
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| Joseph F. Oliver (exact or similar names) - Worcester, MA |
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Patent Dates:
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| Applied: |
Apr. 28, 1919 |
| Granted: |
Nov. 21, 1922 |
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Patent Pictures:
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Joseph F. Oliver patent November 21, 1922 |
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Stan Schulz
U.S. 1436049 in ESPACENET
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Description: |
| Movable jaws that hinge on sliding pivots and are held to pre-set sizes by meshing rack teeth.
Produced as the WAKEFIELD WIZARD No. 120 double-end adjustable open end wrench, with 10 sizes marked.
Compare 1890's German patent DE-94880's use of a sliding toothed adjustable jaw. |
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