US Patent: 75,454 - Improvement in augers


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US Patent: 75,454

Improvement in augers

Patentee:

Ira T. Payne (exact or similar names) - Chester, CT

USPTO Classifications:

408/213

Tool Categories:

woodworking tools : hand drills : drill bits : auger bits

Assignees:

None

Manufacturer:

Unknown

Witnesses:

T. C. Silliman

Joseph E. Silliman

Patent Dates:
Granted:	Mar. 10, 1868

Patent Pictures:

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Description:

"The nature of my invention consists in providing double-twist augers and bits with a head of increased strength, and the means of securely holding a spur, which may be replaced by filling up one of the channels of the twist at the head of the tool, or by so forging the head of the plate as to secure an equivalent when the plate is twisted; and also in forming upon the floor-lip a seat or projection on the side towards the screw, which shall facilitate the filing of the floor-lip on that side."