US Patent: 357,437
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| Lathe-chuck
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Patentee:
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| John H. Westcott (exact or similar names) - Oneida, Madison County, NY |
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Patent Dates:
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| Applied: |
Oct. 18, 1886 |
| Granted: |
Feb. 08, 1887 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Westcott Chuck Co.
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Description: |
| Duell, Laass & Duell - patent attorneys
This invention relates more particularly to the class of lathe and drill chucks which have dogs or jaws sliding in radial grooves in the body of the chuck, and sustained therein adjustably in relation to their distance from the center of the chuck by means of screws journaled on the chuck and engaging with screw threads on the jaws. The object of my present invention is to increase the capacity of the chuck, so as to enable it to hold work of greater diameter with out materially adding weight to the chuck or interfering with the adjusting-screws or other jaw setting and holding devices of the chuck.
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