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US Patent: 81,069
Improvement in Bits for Boring Wood
Spoon bit with lead screw
Patentee:
Ransom Cook - Saratoga Springs, NY

USPTO Classifications:
408/214

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. T. Cook
E. R. Cook

Patent Dates:
Granted: Aug. 18, 1868

Patent Pictures:
USPTO pdf tiff
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Description:
Better known for his gouge lip auger bit patent (8162), Cook claims the addition of a lead screw to spoon bits aids accuracy in starting holes.

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