US Patent: 512,911
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| Tool Holder
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Patentee:
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| Henry Shogren (exact or similar names) - Portland, OR |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 15, 1893 |
| Granted: |
Jan. 16, 1894 |
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Patent Pictures:
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Henry Shogren January 16, 1894 |
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Stan Schulz
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Description: |
| A series of small tools is held around the perimeter of a split cylinder by a retaining sleeve. The handle turns to tighten or loosen a clamping bolt with a tapered head that wedges a selected tool against the sleeve by spreading the split cylinder. |
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