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US Patent: 735,012
Speed Changing Mechanism
Patentee:
William F. Barnes - 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 pdf tiff
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"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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