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US Patent: 69,399
Ratchet Drill
Improvement in Ratchet-Braces
William Brown - Hoboken, NJ

USPTO Classifications:
254/DIG12, 408/121, 74/543, 74/575, 74/578, 81/60

Tool Categories:
woodworking tools : braces : ratchet braces


Not known to have been produced

A. Le Clerc
G. W. Reed

Patent Dates:
Granted: Oct. 01, 1867

Patent Pictures:
William Brown Pat. Oct. 1, 1867
USPTO pdf tiff
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The patent is for the spherical toothed surface and corresponding curved face ratchet tooth with enables the ratchet handle to work through a wide range of angles in relation to the axis of the drill. This device has no provision for reverse action.

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