Patented & Distinctive Bit Braces
A Research Study
by George Langford, Sc.D.
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Brace B&D-42
Price: $20.00 plus shipping.
Stanley No.921-14IN brace with four patent dates.
This brace has four (illegible) patent dates stamped on the head casting.
About 10% of the nickel plating remains.  The brace is mechanically sound and works smoothly.
This is the largest available size of this model.  The rosewood handles are in good condition.
Use only for square-shank bits !

921

This brace, B&D-42:
Wrist handle of this brace
Brace B&D-41:
Wrist handle of B&D-41
The wrist handles of the two Stanley No.921-14IN braces have different methods of affixing the wrist handles.

The present brace appears to follow Albert Goodell's US Patent No. 488,691, dated December 27, 1892, and not George Allen's US Patent No. 675,917, dated June 11, 1901, as the latter was assigned to the Peck, Stow & Wilcox Company, and the former had probably expired by the time this brace was made, as early as 1918.


Top view of brace

Patent markings
The patent-date imprints were filled up with iron oxide cemented together with grease and dirt, and I made them a lot more legible with some elbow grease plus 0000 steel wool.

There are a number of Stanley-assigned patents which seem to have been conceived to fit inside braces like this one:

US Patent Inventor  Date of Issue
803,669
H.J. Cook January 16, 1906
822,714 J.P. Bartholomew June 5, 1906
850,347 H.J. Cook April 16, 1907
850,566
H.J. Cook
April 16, 1907

Each one of these had mechanisms which would fit inside the outline of thr present brace.

The mechanism inside this brace's ratchet box is the same as that inside B&D-42.