Patented and Distinctive Bit Braces & Augers, a Research Study
by
George Langford, Sc.D.
Updated December 22, 2016
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Charles Amidon, et al. According to the historical data gathered by Randy Roeder and by Sandy Moss, Charles Amidon had a succession of business partners whose contributions were largely financial. Except for William Ives, with whom I am unsure whether Amidon ever partnered, the only common patentee in the table below is Amidon himself. The swaged ferrules are common to all but braces 92 and 176 and helped me identify the Amidon-related braces in my various searches online and in the field.

Amidon's Associate(s)
Representative Images
(can be enlarged)
Examples
found by GB

Patents (in same order as examples)
Patent Dates
(in chronological order)

Directory of American Toolmakers: active years
Underwood
Underwood patent jaws 163
179,628
Patentee: Underwood
July 4, 1876
Not in DAT
Gunn
Chuck apartChuck apart 82, 98 42,827, 64,931
BarberGAandS042.JPG
Patentees: Barber; Amidon
May 24, 1864;
September 13, 1881
1861-1868
Ives (?)
Chuck apart 92, 176
195,373, 202,548 & 283,844
Patentees: Ives; Amidon
September 18, 1877; April 16, 1878; August 28, 1883
1868-1917
(but not with Amidon)
Hastell
none
none found
unknown patents
unknown patents
unknown period
Saxton
Chuck apartChuck apart 82, 173,
184, 185
42,827; 226,646; 344,130 & 361,368, 344,130 & 361,368
SaxtonOsgood628.htm; SaxtonOsgood635.htm
Patentees: Barber; Amidon; Osgood
May 24, 1864; April 20, 1880; June 22, 1886; April 19, 1887 1877-1883 (with Amidon)
White
Chuck apartChuck apart 85, 91, 186 392,062, 226,646, 392,062
Patentees: Pedersen; Amidon
April 20, 1880;
October 30, 1888
1883-1887
Osgood
Chuck apartChuck apart 66, 81, 86, 152, 184, 185 361,368; 226,646 & 361,368, 361,368, 361,368, 344,130 & 361,368,
344,130 & 361,368
Patentees: Amidon;
Osgood
January 14, 1868; June 22, 1886; April 19, 1887
1886-1887 (with Saxton)
Bastedo
Chuck apart 183
226,646 & 283,844
Patentee: Amidon
April 20, 1880;
August 28, 1883
1887-1892
Amidon
Chuck apartChuck apart 80,
96
, 162
73,279, 226,646, 226,646
Amidon661.htm
Patentee: Amidon
January 14, 1868;
April 20, 1880
Working alone in 1893.
Wilcox
Wilcox chuck & ratchet
In Storage
428,984; 425,157
WilcoxWilcox669.JPG
May 27, 1890
April 8, 1890
Still looking for the chuck patent ...