https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=34290&pn=307,830 Pipe Wrench Patentee: Alfred Barbour - Tarentum PA Granted:1884-11-11
Manufactured by Barbour Brothers - Tarentum PA

The self-adjusting hook jaw pipe wrench has nothing new. The patent is for the combination of such a wrench combined with roller pipe cutter on a movable jaw. Ken Cope's "American Wrench Makers 1830-1930" notes Barbour Brothers of Tarentum, PA produced the wrench as the PEERLESS pipe wrench. The patent is noted in pat. no. 333,836.
This is one of 84,733 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=39840&pn=410,985 Nut Wrench Patentee: John B. Meier - Port Huron MI Granted:1889-09-10
Assigned to Benj. J. Karrer - Port Huron MI

The adjustment is held by rack teeth in the lever handle engaging rack teeth on the shank of the movable jaw. A spring catch in the end of the handle holds the lever handle in the "closed" position. Known examples marked MEIER WRENCH PAT SEPT. 10 89. Corresponding Canadian patent CA-34,550 granted June 19, 1890.
This is one of 84,733 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=15844&pn=754,633 Wrench Patentees: Lewis Ash - Hassel MT , Hiram B. Stewart - Hassel MT Granted:1904-03-15
Manufactured by Ideal Wrench Co. - Tacoma WA

The patent has replaceable rack teeth recessed in the shank, replaceable gripping teeth on the inner face of the moveable jaw, and a spring keeping the gripping teeth engaged. The earliest advertisements for the Wright wrench show a design corresponding to this patent. Wright wrenches are typically found citing this patent and James F. Wright's Jan. 26, 1909 patent (no. 910,890). The IDEAL WRENCH CO. attribution taken from Ken Cope's "American Wrench Makers 1830-1930" is also noted in Nov. 1907 AMERICAN MACHINIST & Dec. 1907 COMMERCIAL AMERICA write-ups for the wrench. The company name was changed to WRIGHT WRENCH CO. shortly thereafter, and the Tacoma office closed in 1909.
This is one of 84,733 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85436&pn=1,444,824 Plow Clevis Patentee: William E. Ballard - Birmingham AL Granted:1923-02-13

The design includes an "alligator wrench" headed pin, and provision for adjustable draft, arranged so the selected draft is retained. Known example marked " PAT FEB 23 - 21 " with a manufacturer's logo.
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]]> https://www.datamp.org/patents/displayPatent.php?id=75466&pn=876,333 Clevis Patentee: Benjamin W. Cook - Poseyville MI Granted:1908-01-14
Manufactured by Barth Mfg. Co. - Milwaukee WI
Assigned to Cook Clevis Co. - Chicago IL

Evolution of the design in patent no. 753,366; the form is compatible with casting technology. The clevis has a "pivoted link engaging a pin or upright on the main body of the clevis." The description in corresponding Canadian patent CA-109,278 goes into much greater detail on the use and operation of this clevis. Ad images for the clevis summarize those details. Initial ads for the Cook Safety Clevis were run by the Cook Clevis Co., Chicago. Subsequent production was by Barth Mfg. Co., Milwaukee, WI. A known example of this design is marked, "COOK 2 / PAT 3-1-04" - the date of predecessor patent 753,366.
This is one of 84,733 patents currently in the database at datamp.org

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