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US Patent: 114,129
Improvement in self-oiling pulleys
Patentees:
Henry J. Colburn - Fitchburg, MA
James Goodrich - Fitchburg, MA

USPTO Classifications:
384/392

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms

Assignees:
None

Manufacturer:
Rollstone Machine Works - Fitchburg, MA

Witnesses:
T. C. Day
J. S. Brown

Patent Dates:
Granted: Apr. 25, 1871

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Rollstone Machine Works

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