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US Patent: 103,015
Improved Automatic Friction Dog Lathe-Chuck
Loring Coes - Worcester, MA

USPTO Classifications:
279/112, 279/123, 279/33

Tool Categories:
woodworking machines : wood lathes : wood lathe accessories
woodworking machines : specialty machines : tool making machines


Not known to have been produced

Thomas H. Dodge
A. E. Pierce

Patent Dates:
Granted: May 17, 1870

Patent Pictures:
Loring Coes Lathe Chuck Pat. May 17, 1870
USPTO pdf tiff
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The automatic action lathe chuck is adapted for holding irregular shaped items as well as cylindrical ones. Workpieces could be gripped and released by this chuck without stopping it. The surmise is that Coes intended this chuck to be used in production of screw wrenches.

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