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US Patent: 79,049
Grinding Reaper Knives
Improved Device for Grinding Tools
Patentee:
Daniel W. Ayres - Sheldon, IL

USPTO Classifications:
451/349

Tool Categories:
metalworking machines : grinders : tool grinders

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Seth Burdick
John McDermet
W. C. Ashkettle
William A. Morgan

Patent Dates:
Granted: Jun. 23, 1868

Patent Pictures: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ]
USPTO pdf tiff
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Description:
Munn & Co.-patent attorneys

Note: The photos show a different gear arrangement and the name is spelled 'Ayers' instead of Ayres.

This invention relates to a new and improved portable device for grinding tools of various kinds, but more especially for grinding the knives of the sickles of grain and grass-harvesters

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