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US Patent: 270,537
Feed mechanism for drills
Patentees:
John Barnes - Rockford, IL
Benjamin F. Barnes - Rockford, IL

USPTO Classifications:
74/840

Tool Categories:
metalworking machines : metalworking machine mechanisms
metalworking machines : drilling and boring

Assignees:
W. F. & John Barnes Co. - Rockford, IL

Manufacturer:
W. F. & John Barnes Co. - Rockford, IL

Witnesses:
A. R. Rea
A. O. Behel

Patent Dates:
Granted: Jan. 09, 1883

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for W. F. & John Barnes Co.
Description:
A combined screw-gear and lever-ratchet feeding mechanism for a vertical drill.

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