US Patent: 491,624
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| Breast-drill
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Patentee:
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| William H. Wilkinson (exact or similar names) - Boston, MA |
| USPTO Classifications: |
| 81/34 |
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Patent Dates:
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| Applied: |
Jun. 16, 1892 |
| Granted: |
Feb. 14, 1893 |
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Patent Pictures:
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1 | 2
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Wilkinson 491,624 |
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George Langford
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Description: |
| These are frequently seen on dealers sales lists and EBAY. Nonetheless, it would be erroneous to refer to them as common. The drills are massive. Wilkinson's patent is for the slide lever on the upper handle that locks the chuck when inserting and removing bits. A William H. Wilkinson was listed in Boston in the 1890 census as being associated with Andrew J. Wilkinson Company, a Boston hardware dealer. |
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