http://www.datamp.org/ Recently added patents en-us http://www.datamp.org/patents/displayPatent.php?id=29341&pn=D115,416 Torque Indicating Tool Patentee: Siegmund Mandl - Milwaukee County WI Granted:1939-06-27
Manufactured by Blackhawk Manufacturing Company - Milwaukee WI
Assigned to Blackhawk Manufacturing Company - Milwaukee WI

A bar type torque wrench. Design matches BLACKHAWK TORKFLASH torque wrench -- the indicator scale rotates to show torque for common bolt sizes, foot pounds, etc. Term of patent 3 1/2 years. Morsell, Lieber & Morsell - patent attorneys
This is one of 56,207 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=43136&pn=519,550 Combination Tool For Carriages Patentee: Joseph A. Riordan - Harrison NJ Granted:1894-05-08

A pliers type tool with jaws shaped to fit multiple nut sizes, and including pliers jaws, wire cutters, a hammer poll, and hoof pick and tack claws on the handle ends. Ken Cope's "American Wrench Makers 1830-1930" presumes Riordan produced this tool; a known example marked only with the patent date does not include the "handle end" tools.
This is one of 56,207 patents currently in the database at datamp.org

]]> http://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 56,207 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=28485&pn=194,488 Pipe And Nut Wrenches With Cutters Patentee: Benjamin L. Walker - Sing Sing NY Granted:1877-08-21

The patent is for the pipe wrench and cutter attachments; they are shown applied to a nut wrench corresponding to Walker's January 1, 1875 patent (no. 158,548). The pipe jaw and cutter clamp on. The cutter jaw works in conjunction with a crank-driven block to hold the work piece against the cutting edge. The language of the specifications imply that at least working prototypes were constructed. The patent model for the cutter survives, and is installed on an all-brass model of the Walker wrench. British patent GB-187701912 encompasses both the wrench and attachment.
This is one of 56,207 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=22518&pn=1,455,042 Joint for folding rules Patentee: Fred Buck - Saginaw MI Granted:1923-05-15
Assigned to Lufkin Rule Company - Saginaw MI

This joint may have been used on Luflin's No 1206 rule though they are not marked.
This is one of 56,207 patents currently in the database at datamp.org

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