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US Patent: 78,681
Improved Machine for Cutting Files
William T. Nicholson - Providence, RI

USPTO Classifications:
76/15, 76/22

Tool Categories:
woodworking machines : specialty machines : tool making machines
metalworking tools : files

Nicholson File Co. - Providence, RI

Nicholson File Co. - Providence, RI

Benj. F. Thurston
Wm. W. Rickard

Patent Dates:
Granted: Jun. 09, 1868
Antedated: Jun. 05, 1868

Patent Pictures: [ 1 | 2 ]
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"Claim is for a file cutting machine with a "rolling bed," whose longitudinal axis is set angularly with the line of motion of the carriage, or the cutting chisel if the former be stationary and the latter movable, in combination with such cutting chisel." References functions of John Crum's 1 Jul 1851 patent 8,199 as well as Nicholson's patents of 5 Apr 1864 42,216 and 42,217.

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