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US Patent: 1,515,568
Grinding machine
Patentees: George W. Fleming (exact or similar names) - Springfield, MA Robert W. Ellingham (exact or similar names) - Springfield, MA USPTO Classifications: 409/219, 451/216, 451/221, 451/227, 451/394, 82/11 Tool Categories: 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: Mar. 02, 1921 Granted: Nov. 11, 1924 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: Improvements to patent 938,803, to particularly adapt it to grinding turbine blades and similarly curved surfaces.

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