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US Patent: 177,742
Improvement in Bung-Borers
Patentee:
Aurelius M. Norton - Higganum, CT

USPTO Classifications:
408/214

Tool Categories:
woodworking tools : hand drills : drill bits : tapered reamers

Assignees:
Atwater E. Brockett - Branford, CT

Manufacturer:
Not known to have been produced

Witnesses:
Cornelius Brainard
Edward D. Gilbert

Patent Dates:
Applied: Mar. 16, 1876
Granted: May 23, 1876

Patent Pictures:
USPTO pdf tiff
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Description:
Typical conical form with threads on the back of the body to continue feeding it into the work in a controlled manner.

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