https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=48384&pn=2,555,395 Rocking Fulcrum For Adjustable and Pivotal Outer Wrench Jaws Patentee: Ottavio A. Capra - Jamaica NY Granted:1951-06-05
Manufactured by Stilsomatic Tool Corp. - Annapolis MD

"An object of the invention is to provide a novel fulcrum for an adjustable and pivotal wrench jaw, the fulcrum including upper and lower arcuately slidable blocks, an adjusting nut positioned between the blocks, and a spring interposed between the nut and the lower block in order to prevent accidental rotation of the nut."- from the description. The patent cites previous U.S. patent nos. 197,658, 549,221, 1,026,040, 1,143,350, 1,288,969, 1,360,672, 1,389,581, 1,602,619, 1,778,748, 2,211,507 and two foreign patents as relevant prior art. Known example marked, "Stilsomatic Tool Corp Annapolis MD" with the patent number.
This is one of 85,086 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=22736&pn=1,010,479 Wrench Patentees: John S. Collison - Ord NE , William A. Wright - Ord NE Granted:1911-12-05
Manufactured by Ord Mfg. Co. - Ord NE

The jaw adjusts by the advance and retraction of a link acting in angled slots in the case and movable jaw. Aspects of this patent and of Collison & Wright's Oct. 1, 1918 patent (no. 1,280,405) appear in an adjustable plier-wrench marked "Collison - Wright "S" Wrench, Ord Mfg., Ord, Neb. Pat'd Dec. 5, 1911." A 1915 ad for the Collison-Wright wrench solicited agents. Three variants of the Collison-Wright wrench are shown in picture no. 309 of "Antique and Unusual Wrenches" by Schulzes.
This is one of 85,086 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85796&pn=1,106,672 WRENCH Patentees: Henry Munson - Great Falls MT , Benjamin Hazeltine - Center Point IA Granted:1914-08-11

A "Stillson" type pipe wrench; the patent deals with the structure of the handle and "yoke." A known example marked "MUNSON / PAT. AUG. 11, 1914" has the yoke structure and related aspects of the handle and fixed jaw.
This is one of 85,086 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=44539&pn=768,220 Ratchet Wrench Patentee: Charles B. Gracey - Coraopolis PA Granted:1904-08-23
Manufactured by C. B. Gracey & Co. - Pittsburg PA
Assigned to William T. Tredway - Pittsburgh PA

The patent is for the shape and arrangement of the pawl and its spring, and the interface of the pawl with the teeth on the head. The pawl can be reversed without removing the wrench from the work piece. C.B. Gracey produced heavy duty ratchets for ratchet drills, turnbuckle adjusters, etc.
This is one of 85,086 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85795&pn=1,289,937 WRENCH Patentee: Anthony C. Shade - Los Angeles CA Granted:1918-12-31

The patent is for the internal structure of the clamp and release mechanism for the toothed gripping piece within the movable jaw. The gripping piece works against rack teeth on the main shank. Pushing the button releases the gripper, allowing for quick adjustment.
This is one of 85,086 patents currently in the database at datamp.org

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