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Brace Bit - U.S. Patent #9209
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| Name of Patent Applicant: | | Erasmus Smith of Norwich, New York |
| Purpose of Patent: | | Fasteners of bits to braces |
| Patent No: | | 9,209, August 17, 1852 |
| Country of Issue: | | United States |
To all whom it may concern:
Be it known that I, ERASMUS SMITH, of Norwich, in the county of Chenango and State of New York, have invented a certain new and useful Improvement in Hand Bit or Drill Stocks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form part of this specification, and in which--
Figure 1 is a side view of a hand brace and bit with my improvement attached for securing the latter; Fig. 2 a sectional view through the line x x of Fig. 1, showing the bit-holder open; Fig. 3 a similar view showing the devices for securing the bit closed.
Various spring-catches and other contrivances have been proposed and adopted for holding boring or other bits in the sockets of hand drills or braces. These contrivances have generally been arranged with a view to holding the bit firmly in its place, and admitting of its entry and release from the socket of the brace with facility and despatch. These objects have hitherto been but imperfectly attained for the devices employed have proved too liable to derangement. Most of the spring catches in use for securing bits in their stocks, are exposed to the same strains to which the bit is exposed, which strains soon weaken the catch, and finally disable it.
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