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US Patent: 130,826
Improvement in hollow augers
Patentee:
George N. Stearns - Syracuse, NY

USPTO Classifications:
30/395

Tool Categories:
hand drills : drill bits : hollow bits

Assignees:
None

Manufacturer:
George N. Stearns & Co. - Syracuse, NY

Witnesses:
David P. Murphy
R. F. Stevens

Patent Dates:
Granted: Aug. 27, 1872

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"Vintage Machinery" entry for G. N. Stearns
Description:
"The nature of my invention relates to the construction and method of operating the hollow auger, embracing the use of a conical nut in operating the two parts of the stock or barrel, the construction of the cutter, and the means of holding it in the mortise."

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