US Patent: 115,541 - Improvement in Augers


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US Patent: 115,541

Improvement in Augers

Patentee:

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

USPTO Classifications:

408/214, 408/230

Tool Categories:

woodworking tools : hand drills : drill bits : auger bits

Assignees:

None

Manufacturer:

James Swan Co. - Seymour, CT

Witnesses:

John H. Shumway

A. J. Tibbits

Patent Dates:
Granted:	May 30, 1871

Patent Pictures:

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Description:

Claims an improvement of Ransom Cook's "gouge lip" auger patent 8162, by means of a re-shaped cutting lip intended to avoid tear-out. Fig. 2 of patent image shows end view of Swan's cutting lip, while fig. 3 shows Cook's version.

Illustrations of "Cook's Patent Augers and Bits" in the 1904 James Swan catalogue confirm that Swan's form had been adopted.