US Patent: 224,156 - Die for forming Double-Twist Gimlets


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US Patent: 224,156

Die for forming Double-Twist Gimlets

Patentees:

Amos H. Deuse (exact or similar names) - Chester, CT

James S. Deuse (exact or similar names) - Chester, CT

USPTO Classifications:

72/469, 72/470

Tool Categories:

tool making : making drills and augers

woodworking tools : hand drills : gimlets

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Hiram Willmot

Charles W. Parker

Patent Dates:
Applied:	Jun. 20, 1879
Granted:	Feb. 03, 1880

Patent Pictures:

USPTO (New site tip)
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Description:

Increasing sized "bars" in the die deepen the pods (flutes), and "swell" the gimlet bit rod toward the tip - providing strength and clearance for the trailing portion of the bit.