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US Patent: 735,012
Speed Changing Mechanism
Patentee: William F. Barnes (exact or similar names) - Rockford, Winnebago County, IL USPTO Classifications: 74/371 Tool Categories: metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms Assignees: W. F. & John Barnes Co. - Rockford, Winnebago County, IL Manufacturer: W. F. & John Barnes Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Dec. 31, 1902 Granted: Jul. 28, 1903 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for W. F. & John Barnes Co.
Description: This patent was seen on a heavy drill press from W. F. & John Barnes Co.

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