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US Patent: 226,066
Emery-wheel
Patentee:
Gilbert Hart - Detroit, MI

USPTO Classifications:
451/546, 51/309

Tool Categories:
industrial tools : grinding wheels
metalworking machines : grinders : sharpening machines : grinding wheels

Assignees:
None

Manufacturer:
Hart Emery Wheel Co. - Hamilton, ON Canada

Witnesses:
James A. Rutherford
James L. Norris

Patent Dates:
Applied: Mar. 05, 1880
Granted: Mar. 30, 1880

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Hart Emery Wheel Co.
Description:
The invention consists of a grinding wheel with short lengths of metal wire admixed, which improved the strength of the wheel.

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