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US Patent: 681,152
Cone friction-clutch
Patentee: Edwin E. Thomas (exact or similar names) - Minneapolis, MN USPTO Classifications: 192/66.2, 192/99R, 74/491 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine clutches Assignees: Union Iron Works (Minneapolis) - Minneapolis, MN Manufacturer: Union Iron Works (Minneapolis) - Minneapolis, MN Witnesses: A. C. Paul M. C. Noonan	Patent Dates: Applied: Jan. 05, 1900 Granted: Aug. 20, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Union Iron Works (Minneapolis)

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