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US Patent: 275,561
Polishing or buffing wheel
Patentee:
Simon T. Wray - Buffalo, NY

USPTO Classifications:
451/539

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

Assignees:
William F. Supple - Buffalo, NY
Simon T. Wray - Buffalo, NY

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

Witnesses:
W. T. Miller
Alfred H. Rowell

Patent Dates:
Applied: Sep. 22, 1882
Granted: Apr. 10, 1883

Patent Pictures:
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"Vintage Machinery" entry for Hart Emery Wheel Co.
Description:
The invention consists of a grinding wheel made of compressed layers of stiff cardboard, to which sandpaper can be glued. "Wray's Patent Paper Wheels" are featured in an 1887 catalog from Hart Emery Wheel Company of Hamilton, Ontario.

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