Millers Falls No. 832 Master Ratchet brace with three patent dates
Described by George Langford
March 7, 2007
| This
is a remarkably smooth-operating brace, as it has a concealed ratchet
which can be kept effectively lubricated as well as ball bearings on
both the pad and the wrist handle. The latter feature is rare
among braces. There are at least four patents involved in the
design & construction of this brace, although only three of them
are stamped on the tool. Even though US Patent No. 935,266
appears to depict the overall brace design and most of the design
details (including the ball bearing wrist mechanism and the concealed
ratchet with its nonmagnetic brass selector sleeve) it is not cited on
the brace. The four brace patents were issued, in order from left to right, on June 25, 1907, February 16, 1909, September 28, 1909, and November 8, 1910, respectively. Each linked date goes to the USPTO website images of the patent. Click on each image below in order to view it at about twice the resolution; then use your browser's BACK button to return to this page. Note that none of the patents cited here apply to the detailed design of the wrist handle's ball bearings, except perhaps US Patent No.935,266. The links associated with the patent numbers below go to the Google Patents database. The DATAMP database of American Tool Patents can be quite helpful, also. The chuck appears to follow US Patent No.974,896 most closely. Mr. John A. Leland was the inventor of all four patents. The brace is marked, "2nd quality" on the bow, perhaps because the stamping on the chuck shell is so indistinct. |
| US Patent No.857,947 |
US Patent No.912,582 | US Patent No.935,266 |
US Patent No.974,896 |
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