US Patent: 225,496 - Hollow Auger


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US Patent: 225,496

Hollow Auger

Patentee:

Edward C. Stearns - Syracuse, NY

USPTO Classifications:

30/495

Tool Categories:

hand drills : drill bits : hollow bits

Assignees:

None

Manufacturer:

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

Witnesses:

W. E. Hookway

W. E. Warner

Patent Dates:
Applied:	Jul. 26, 1879
Granted:	Mar. 16, 1880

Patent Pictures:

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"Vintage Machinery" entry for George N. Stearns (E. C. Stearns)

Description:

Stock is made of one piece with two arms extended from the shank and the cutter jaw and gage jaw clamped onto the ends of the arms. Adjustable depth gage attached to one of the arms.