US Patent: 305,035
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| Expanding Wrench and Mandrel
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Patentee:
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| Albert E. Lytle (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 13, 1883 |
| Granted: |
Sep. 09, 1884 |
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Patent Pictures:
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Albert E. Lytle patent September 9, 1884 |
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Stan Schulz
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Description: |
| The center taper shanked bolt pushes three gripping jaws outward. The specifications note its utility as a bung bushing wrench, or as a gripper for the inside of cylindrical turnings on a lathe. |
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