US Patent: 29,883 - Adjustable Auger


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US Patent: 29,883

Auger
Adjustable Auger

Patentee:

John M. Hathaway (exact or similar names) - New York, NY

USPTO Classifications:

408/212, 408/233

Tool Categories:

woodworking tools : hand drills : drill bits : adjustable drill bits

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

J. F. Case

W. G. Nutting

Patent Dates:
Granted:	Sep. 04, 1860

Patent Pictures:

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Description:

Adjustable auger by means of transverse cutter set in a dovetail groove. Additional specifications refer to pin and spring arrangement, as well as a set screw and 1/32" graduations to expedite setting the diameter of cuts at 1/16" increments.