Pivoted jaw engaging notch on shank: closed by screw or sleeve. Securing bits in stock: recessed bit shank. Hammel & Co., NY, 1880 (catalog).įastening bits or augers to their stocks or handles.
Humphrey, Albany, NY.ĭrill with multiple pulleys - acts like bow drill Drill brace on wooden workbench Stock Photo Black Icons - Different types of drills and drill bits Stock Vector Hand brace and bit on a white table top. Improvement in shank-sockets for auger handles.Īssignor to James H. Two jaws actuated by threaded sleeve.Īugers and braces (securing bits in their sockets)īit for cutting cylindrical plugs of wood.īit, brace, for boring obliquely to the axis of the stock.īit brace with clam action chuck to engage bit recess. New London, CT.Īlso manufactured by Hebron Mfg. A search of the entire site is accomplished by using the larger, blue search box on the upper right hand side of the page. Search of just this table is done using the small search box just above the table. Sorting can be accomplished by selecting an up or down arrow on the column heading. This table is both sortable and searchable. With the patent number, you can also search directly online at the US Patent Office (additional information on Patent Searches can be found here on our website.) We believe that this is an important addition which will be of significant interest to our readers.įor those interested in viewing the patent drawings, most of them can be found in The American Patented Brace, which may be available from several antique tool dealers or directly from the publisher, The Astragal Press. We would like to thank Ron for allowing the inclusion of material from his book here on our website. These additional patents have been found, mostly, by fellow tool collectors, whose curiosity and diligent searching have uncovered obscure listings. Ron Pearson (now deceased) and has been expanded by additional patents discovered since the book was published.
BRACE AND BIT HAND DRILL FREE
(A small number of the patents refer to hand drills or brace attachments.) This information has been taken from the book, The American Patented Brace, 1829-1924, by Dr. Mazmer Carpenters Bit Brace Hand Crank Drill with 12-Inch Swing Arm, Steel and Plastic Construction, Comfortable Non-Slip Handle, Ideal for Woodworking, Easy to Use Hand Tool (Bit+ Auger Drills) 7997 FREE delivery Wed, Sep 13 Only 7 left in stock - order soon. Hand braces are usually associated with traditional tapered square head auger bits but they also work very well with modern quick-change hex shanks (round shanked drills have a tendency to slip). The following is a listing of over 600 brace and brace related patents issued by the U.S.
0 kommentar(er)
