US Patent: 1,521,331
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| Clutch Wrench
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Patentee:
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| Reginald F. Sedgley (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 26, 1921 |
| Granted: |
Dec. 30, 1924 |
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Patent Pictures:
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Reginald F. Sedgley patent Dec. 30, 1924 |
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Stan Schulz
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Description: |
| The patent describes a clutch mechanism as an alternate to ratchets in wrenches. At the center of this clutch are toothed segments with a spring that holds them apart. The spring is compressed to allow the teeth to engage.
Compare this structure to patent no. 1,443,413 used by Snap-On. |
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