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US Patent: 417,001
Automatic knife-grinder
Patentee:
Alfred Edgar Creigh - Ronceverte, WV

USPTO Classifications:
451/224, 451/369

Tool Categories:
metalworking machines : grinders : sharpening machines : cutterhead sharpening machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. M. Price
J. M. Kinports

Patent Dates:
Applied: Aug. 10, 1889
Granted: Dec. 10, 1889

Patent Pictures:
USPTO pdf tiff
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Description:
"My invention relates to automatic knife-grinders for planing-mills, box-factories, furniture-factories, &c.; and it has for its object to provide a grinding-machine which will automatically carry the knife back and forth in contact with the grinding-wheel, and which can be so adjusted that when the knife has been ground to the desired degree the knife will be automatically held from contact with the grinding-wheel."

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