US Patent: 203,384 - Improvement in hollow augers


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US Patent: 203,384

Improvement in hollow augers

Patentee:

George N. Stearns (exact or similar names) - Syracuse, NY

USPTO Classifications:

30/495

Tool Categories:

woodworking tools : hand drills : drill bits : hollow bits

Assignees:

None

Manufacturer:

E. C. Stearns & Co. - Syracuse, NY

Witnesses:

J. J. Greenough

P. B. McLennan

Patent Dates:
Applied:	Jun. 15, 1876
Granted:	May 07, 1878

Patent Pictures:

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Vintage Machinery entry for G. N. Stearns | E. C. Stearns & Co.

Description:

"This invention relates to the class of tools termed 'adjustable,' and is designed for cutting tenons of different sizes and lengths, and to obviate the necessity of using a separate auger for each sized tenon."