US Patent: 119,096 - Improvement in Hollow Augers


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US Patent: 119,096

Improvement in Hollow Augers

Patentee:

James Swan (exact or similar names) - Seymour, CT

USPTO Classifications:

30/495

Tool Categories:

woodworking tools : hand drills : drill bits : hollow bits

Assignees:

None

Manufacturer:

Unknown

Witnesses:

B. W. Smith

Geo. A. Rogers

Patent Dates:
Granted:	Sep. 19, 1871

Patent Pictures:

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Description:

Set screw is placed on the edge of the cutter to ensure that the cutter is in the same position when it is removed for sharpening and reinstalled.

An apparently identical hollow auger is shown in a May 1873 Douglass Manufacturing Company pamphlet listed as a Improved Hollow Augers, Douglass' Patent

http://www.toolemera.com/catpdf/douglassmfg1873.pdf