Patented and Distinctive Bit Braces & Augers, a Research Study
by
George Langford, Sc.D.
Updated December 9, 2016
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John Chantrell Mr. Chantrell had three other very similar brace patents: 286,683, 302,320, and 328,649; there are probably several combinations of the teachings in these four patents among the braces that Mr. Chantrell produced during the apparently short life of his firm.

Inventor/Maker
Representative Images
(can be enlarged)
Examples
found by GB

Patent
Patent Date
Directory of American
Toolmakers: active years

Chantrell ck apart
Ratchet
106, 111, 112 328,648
October 20, 1885
1883-1885
Chantrell Ratchet view & Chuck apart
ChantrellGeneric019.JPG Unknown Not applicable.