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US Patent: 1,188,339
John B. Sinderson - Rockford, IL

USPTO Classifications:
409/213, 409/231

Tool Categories:
metalworking machines : milling machines

Ingersoll Milling Machine Co. - Rockford, IL

Ingersoll Milling Machine Co. - Rockford, IL


Patent Dates:
Applied: Sep. 09, 1913
Granted: Jun. 20, 1916

Patent Pictures:
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"Vintage Machinery" entry for Ingersoll Milling Machine Co.
"This invention relates in general to milling machines and has more particular reference to those of the knee-type in which the frame is shaped to provide an overhanging or projecting head for supporting a vertical cutter-holding spindle in addition to the customary horizontal spindle journaled in the upright portion or frame proper of a milling machine. The primary object of my invention is to provide a milling machine in which an angular face or a sharp corner may be milled in one operation by a pair of face milling cutters each of which shall mill a surface of a width substantially equal to its face diameter."

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