https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85433&pn=2,502,407 Quick-acting slidable jaw wrench Patentee: William Gordon - Union City NJ Granted:1950-03-28

"Taper" faces on the adjusting worm and rack and a rocking frame with spring allow for "quick" and screw adjustment. Prior patents 265,188, 609,146, 695,072, 885,003, 950,584 and 1,403,659 are cited as references. Example marked "GORDON - AUTOMATIC - PAT'D USA" has smooth faced jaws set at an angle to the shank.
This is one of 84,730 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=13712&pn=55,107 Improved Screw Wrench and Hammer Patentees: Lewis S. Hoyt - Croton Falls NY , Elias G. Hoyt - Croton Falls NY Granted:1866-05-29
Manufactured by E. G. Hoyt - Croton Falls NY

Spring-loaded hinged jaws which are closed with a bolt and wing-nut form an adjustable nut wrench on the end of an all-metal hammer. Some well-preserved examples show "PAT MAY 29, 1866" adjacent to the pivot bolt. Similar styled jaws on a shank with "triangular hang hole" appear on a wrench marked "PAT 1866."
This is one of 84,730 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=67329&pn=105,813 Schraubenschlüssel ... Patentee: Granted:1899-09-22
Manufactured by Becher & Co. - Eckesey Westphalia Germany
Assigned to Becher & Co. - Eckesey Westphalia Germany

The "tail" on the adjustable jaw would keep the jaws from "springing" in use. A 6 inch long example of this wrench appeared as online auction offering from an Australian seller. The markings were "BECHERS D.R.P. 105813 // SCHLÜSSELKÖNIG." Similar markings appeared on a larger example in a 2024 auction. Corresponding British patent GB-189908999 (8999 of 1899) was granted to Carl Becher (listing only from "Abridgments of Specifications" -- the patent is not in ESPACENET).
This is one of 84,730 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=55109&pn=188,412,232 Wrench or Spanner Patentees: J. E. Gyde - Birmingham England , G. H. Brydges - Birmingham England Granted:1884-09-10

Cam lever handle on the movable jaw clamps on the main shank to hold adjustment. Known 5 inch long example marked "PATENT 12232." Entry extracted from "Abridgments of Specifications." Note: British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #12,232 of the year 1884.
This is one of 84,730 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=49518&pn=614,610 Wrench Patentee: David Dickey - Manhattan MT Granted:1898-11-22

A coil spring opens the two lever handles. When open, the movable jaw is free to slide. When the lever handles are closed, the jaw is held from movement by rack teeth on one handle, and a loop holds the handles together. A wrench marked "ELLISTONE / PROTECTED" has tentatively been suggested as matching this patent although the mechanism is not an exact match.
This is one of 84,730 patents currently in the database at datamp.org

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