US Patent: 1,534,302 - Grinding Machine


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US Patent: 1,534,302

Grinding Machine

Patentees:

Prentice Conradson (exact or similar names) - Evansville, Rock County, WI

Herbert E. Kempton (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

Keith F. Gallimore (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

451/143, 451/19, 451/221, 451/395

Tool Categories:

metalworking machines : grinders : internal grinders

Assignees:

Giddings & Lewis Manufacturing Co. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 23, 1923
Granted:	Apr. 21, 1925

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.

Description:

Claim:

This invention relates to a grinding machine of a novel type and although applicable to machines for various classes of grinding, the invention is herein shown as embodied in a machine which is particularly intended for internal work, that is, for grinding the bores of bushings, gears and various other parts.