US Patent: 486,395
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| Screw Driver
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Patentee:
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| William M. Carr (exact or similar names) - Tyrone, KY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 20, 1892 |
| Granted: |
Nov. 15, 1892 |
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Patent Pictures:
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William M. Carr patent November 15, 1892 |
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Stan Schulz
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Description: |
| A rubber lined, spring loaded sleeve is intended to keep the screwdriver blade aligned with the slot in the screw head. The drawing shows a screwdriver adapted for use in a brace; the patent could also apply to a screwdriver with its own handle. |
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