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US Patent: 163,342
Improvement in drill for drilling metal
Patentee:
Daniel L. Toppan - Somerville, MA

USPTO Classifications:
74/134, 81/34

Tool Categories:
woodworking tools : hand drills : eggbeater drills

Assignees:
Daniel L. Toppan - Somerville, MA
David C. Meloon - East Cambridge, MA
Hopkins H. Meloon - East Cambridge, MA
Gardner B. Chapin - Medford, MA

Manufacturer:
Not known to have been produced

Witnesses:
P. E. Teschemacher
W. J. Cambridge

Patent Dates:
Applied: Apr. 01, 1875
Granted: May 18, 1875

Patent Pictures:
Toppan 163,342
USPTO pdf tiff
Google Patents
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Description:
The flat crank handle is operated back and forth driving the bit in the same direction regardless of the movement of that handle. In configuration this appears almost like a bow drill. Double pinions.

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