US Patent: 40,275
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Improvement in attaching bits to braces
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Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Oct. 13, 1863 |
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Kirk Eppler
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Description: |
"This invention consists in the employment or use of a hinged jaw fitted in the bit end of the brace, and using in connection therewith a collar which is placed on the bit end of the brace, and provided with an annular inclined plane at its inner end, which acts against a pin attached to the brace, all being arranged in such a manner as to admit of the bit being readily secured in the brace or bit-stock or handle and readily detached therefrom." |
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