https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=56624&pn=728,007 Wrench Patentee: William H. Preston - Valley Junction WI Granted:1903-05-12
Manufactured by Adjustable Wrench and Specialty Mfg. Co. - Harvard IL
Assigned to Philip M. Knippenberg - Portage WI

Adjusting nut with interrupted threads can slide freely on the main shank, or adjust a partial turn when engaged with the threads on the shank. A spring-tensioned lever with projection acts to hold the adjustment. Teeth on the exterior of the adjusting nut have a "one-way" bevel so the nut can be tightened while the lever is pressing against it. Produced as a nut wrench, pipe wrench, and combination pipe and nut wrench by the Adjustable Wrench and Specialty Mfg. Co. which formed at Oshkosh, WI and moved to Harvard, IL.
This is one of 84,740 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=25333&pn=464,401 Pipe or Nut Wrench Patentee: James L. Taylor - Memphis TN Granted:1891-12-01
Manufactured by C. H. Redman Mfg. Co. - Newark NJ

This patent is an improvement on Taylor's August 19, 1890 patent (no. 434,847) The improvement includes the adjustable base for the swinging hook jaw. The lever on the base allows one-handed operation and the spring attached to the hook jaw gives ratcheting action.
This is one of 84,740 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85445&pn=190,722,689 Improvements in Gripping Devices for Wrenches. Patentee: Dorsey Perdue Kahle - Venus PA Granted:1908-02-13

Patent for the combination quick and screw - adjust wrench mechanism corresponding to U.S. patents 855,891 and 999,034. Kahle produced the wrench at Oil City, PA.
This is one of 84,740 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=49991&pn=999,034 Wrench Patentee: Dorsey P. Kahle - Venus PA Granted:1911-07-25
Manufactured by D. P. Kahle - Oil City PA

Combination quick and screw adjust wrench. In part it is a modification and simplification of Kahle's June 4, 1907 patent no. 855,891. The major feature is a simplified form of adjusting sleeve with depressable spring-loaded "washers" forming the "teeth" that hold the adjustment of the movable jaw. This patent includes a supplemental pipe gripping insert, and a coiled wire handle. The patent's claim is the pipe gripping insert. The D.P. Kahle wrench bearing a June 4, 1907 patent date has a combination quick and screw-adjust sleeve corresponding to the construction shown in this patent. Miniaturist Hilary Klein produced a limited number of miniatures of the KAHLE wrench.
This is one of 84,740 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=21800&pn=734,738 Hammer for Tinner's Use Patentee: Ashton Thomas Nelson - Wilton Junction IA Granted:1903-07-28
Manufactured by A. T. Nelson - Wilton Junction IA

The special feature of the hammer is the beveled flange designed to facilitate work on tinned roofing panels. A known example is marked, "Pat'd July 28 1903 A.T. Nelson Wilton, Iowa." Nelson was advertising the NELSON ROOFING HAMMER in 1905 and 1906 trade journals. An article about Ashton Thomas Nelson, including the hammer patent, appeared in the September, 2018 THE GRISTMILL.
This is one of 84,740 patents currently in the database at datamp.org

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