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US Patent: 139,482
Improvement in wheel-quartering machines
Patentee: William Sellers (exact or similar names) - Philadelphia, PA USPTO Classifications: 408/53, 82/104 Tool Categories: metalworking machines : drilling and boring : horizontal boring mills Assignees: None Manufacturer: William Sellers & Co. - Philadelphia, PA Witnesses: William S. Lynn William E. Morgan	Patent Dates: Applied: Dec. 11, 1872 Granted: Jun. 03, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for William Sellers & Co.
Description: "My invention relates to machines of that class especially adapted for boring crank-pin holes in the driving-wheels of locomotives..."

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