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US Patent: 1,445,875
Grinding machine
Patentees: Charles E. Van Norman (exact or similar names) - Springfield, MA Robert W. Ellingham (exact or similar names) - Springfield, MA USPTO Classifications: 451/221, 451/252, 451/254, 451/294, 451/363, 451/365, 451/398, 451/435, 451/64, 451/69, 82/165 Tool Categories: trade specific : vehicle repairer : vehicle mechanic metalworking machines : grinders : cylindrical grinders Assignees: Van Norman Machine Tool Co. - Springfield, MA Manufacturer: Van Norman Machine Tool Co. - Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Aug. 29, 1921 Granted: Feb. 20, 1923 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Van Norman Machine Tool Co.
Description: This lathe-style grinder is intended for use in repairing automotive pistons, wrist pins, valves, and the like.

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