https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=17914&pn=212,760 Wrench Patentee: Laroy S. Starrett - Athol MA Granted:1879-02-25
Manufactured by Athol Machine Co. - Athol MA

Improvement on Starrett's May 8, 1877 patent (no. 190,636). The improvements are to facilitate producing the main bar by casting and annealing. Production information from Ken Cope's "American Wrench Makers 1830-1930." Known example marked, "WARRANTED FORGED STEEL / L.S. STARRETT'S PAT'D / May 8, 77 Feb 25, 79"
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=13696&pn=14,221 Wrench Patentee: William Baxter - Newark NJ Granted:1856-02-12
Manufactured by John Charlton - Newark NJ

Diagonal screw adjusts the opening of two open end jaws. Early examples have "round" head on adjustment screw. Updated by Baxter's July 17, 1883 patent (no. 281,431). J. Ashton Greene's Feb. 19, 1884 patent (no. D14,756) is a design enhancement that coincides with the wrench being produced by Greene, Tweed & Co. of New York -- they had registered "labels" for both forms of Baxter wrenches at the U.S. Patent Office in March, 1883. George C. Taft's Dec. 14, 1869 patent no. 97,988 presents an alternative screw arrangement for a diagonal adjusting "S" wrench.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=20430&pn=D3,821 Design for Wrench Patentee: A. Kindermann - Cleveland OH Granted:1870-01-25

The description focuses on the shape of the fixed and movable jaws, the "salient" on the movable jaw, and the corresponding "recess" in the handle. The design may have been an attempt to "by-pass" the William Morehouse Feb. 27, 1866 self-adjusting wrench patent (no. 52,930). The image on the Patent Office web site is so poor that some features are not distinguishable. Our thanks to collector Mike "Rat" Urness for a photo of a self-adjusting nut wrench which is marked in part "KINDERMANN ... PAT. JAN 25, 1870." A second style formerly owned by Frank Kingsbury sold in 2000. Kindermann patented a more complicated self-adjusting wrench on March 16, 1886 (no. 338,078). KINDERMAN & SCHROEDER is listed as manufacturer of "clinch wrenches" and gasoline burners in 1880s Cleveland directories & lists of Ohio manufacturers.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=23340&pn=157,968 Wrenches Patentee: David McFarland - Worcester MA Granted:1874-12-22
Manufactured by D. McFarland - Worcester MA

The large adjusting worm on the movable jaw combined with the adjustment-locking thumb screw is the most distinctive feature of this patent. Most of the wrenches based on this patent have the angled jaws for axle nuts, and solid metal handles with the open end on one side as shown in the drawing. Wood handled nut wrench versions with flat jaw faces are also rarely found.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=24328&pn=166,665 Wrench Patentee: Lucius O. Veber - Schuyler's Lake NY Granted:1875-08-10
Manufactured by Lucius O. Veber - Schuyler's Lake NY

The wrench has an intermediate jaw with a pipe gripping tooth on one face, and a smooth surface on the other. The intermediate jaw can be attached to either the fixed "hook jaw" or the flat faced movable jaw by means of a spring wire loop. The intermediate jaw can be slipped off and the pipe tooth inserted directly in the movable flat jaw to increase the wrench's capacity. The swinging handle moves the base of the adjusting screw, which is especially important when the wrench is used as a pipe wrench. Known examples are pipe wrenches with the pipe tooth directly on the movable jaw. On one the only readable marking is "PAT'D." Another is marked, "PAT AUG. 10, 1875" and "WARRANTED CAST STEEL" on opposite sides of the upper jaw. Some have been stamped with the Jan. 26, 1869 patent date corresponding to J.C. Rowe patent no. 86,322, but that design uses a different size adjustment principle.
This is one of 84,736 patents currently in the database at datamp.org

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