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US Patent: 12,551
Ship Auger
Auger Bit With Detachable Cutting Lip
Patentee:
Isaac W. Hoagland (exact or similar names) - Jersey City, NJ

USPTO Classifications:
408/200, 408/214, 408/233, 76/102

Tool Categories:
woodworking tools : hand drills : drill bits : auger bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William A. Iaquins
Horace C. Turse

Patent Dates:
Granted: Mar. 20, 1855

Patent Pictures: [ 1 | 2 ]
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Description:
Claim centers on the detachable cutting lip held in position by a pin in the body of the bit, a dovetailed recess and a screw.

A _Scientific American_ article (Vol. 10, Issue 37, May 26, 1855) about this patent claims a partial assignment to John W. Hawkes, Washington Market, NYC. It also describes this auger bit as potentially being of greatest value to ship's carpenters boring holes for trenails.

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