https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=15861&pn=476,767 Wrench Patentee: Albert K. Lovell - Jackson MI Granted:1892-06-07
Manufactured by A. K. Lovell Wrench Co. - New York NY

The quick adjust mechanism has a vertically ribbed ring at the botton of a steep spiral screw engaging a pin in the moveable jaw. When the spring catch locking the position of the ribbed ring is released, the movable jaw can be slid into position, and the adjusting spiral turns. Known examples are well made and highly prized by collectors.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=58544&pn=1,792,338 Adjustable Wrench Patentee: Frederick Walz - Burnside CT Granted:1931-02-10

A spring pulls the movable jaw "closed," a locking latch with fine teeth engages fine rack teeth on the movable jaw. A small lever with a"push button" end is used to retract the locking latch. The structure is designed to allow "ratcheting" action of the jaw. A known example is marked WALZ PAT PENDING.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=24560&pn=184,993 Wrench Patentee: Daniel C. Stillson - Somerville MA Granted:1876-12-05
Manufactured by Boston Wrench Co. - Boston MA

This combination nut and pipe wrench has a spring within the lower jaw. Not as effective as Stillson's famous pipe wrench (pat. no 95,744). This patent was produced as the Boston Wrench for a short time in the 1880s. 6, 9, and 12 inch sizes are listed in 1882 advertisements.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=64394&pn=733,525 Wrench Patentee: Miner E. Worden - Scranton PA Granted:1903-07-14
Manufactured by Worden Tool Co. - Scranton PA
Assigned to Worden Tool Co. - Scranton PA

Ratchet pawls in the "fixed" jaw; options for adjustable jaw and "box" versions are shown. The design is intended to be effective for pipe and nuts. One of the pawls would be engaged with the work piece to prevent "lost motion." The claims are for the action and relative disposition of the pawls. Known example marked "WORDEN WRENCH" has the adjustable jaw.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=40050&pn=578,249 Combination Tool Patentee: Melvin Delos Letteer - Delavan, Walworth County WI Granted:1897-03-02
Manufactured by M. Letteer - Delavan WI

Turnbuckle adjusting lever locking wrench, with rule, tack claw, screwdriver, and nipper jaws. Known example differs in some details - produced by the patentee. C. A. Knowles - patent attorney
This is one of 84,736 patents currently in the database at datamp.org

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