US Patent: 150,276
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| Metal-Turning Tools
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Patentee:
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| Edgar B. Beach (exact or similar names) - West Meriden, New Haven County, CT |
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Patent Dates:
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| Applied: |
Mar. 26, 1874 |
| Granted: |
Apr. 28, 1874 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Billings & Spencer Co.
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Description: |
| Abstract:
his invention relates to an improvement in he screw-cutting tool for which Letters Patent #73,431 were granted to me January 21, 1868; and, though designed particularly for screw-cutting, may be applied to tools for general turning. In that patent the cutter was secured by a clamping device dependent upon the friction o hold the cutter. In practice it has been found that the cutter is liable to be forced down or moved in its seat. The object of this invention is to avoid the possibility of slipping; and it consists in combining, with the shank fitted to receive the cutter in a recess upon its side, a cutter and clamping-piece with corresponding irregular sur- faces, so as to prevent the movement of the cutter in the direction of its length.
Claim:
The cutter A and the shank B, fitted to receive the said cutter, combined with the clamping-piece C and bolt D, the said piece C and the rear side of the cutter made irregular in form, so as to interlock. |
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