https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85906&pn=1,371,642 Inside pipe-wrench Patentee: Allen Olson - San Pedro CA Granted:1921-03-15

An "arcuate" exterior jaw, and movable cylindrical inner jaw, designed to grip the pipe.
This is one of 85,196 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85905&pn=1,370,820 Adjustable socket-wrench Patentee: James Oscoe Johnson - Kokomo IN Granted:1921-03-08

Jaw size is adjustable; wrench is turned by sliding "T" handle in the shank portion, and the length of the shank is adjustable.
This is one of 85,196 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=20480&pn=1,443,413 Socket Wrench Patentee: Joseph Johnson - Milwaukee WI Granted:1923-01-30
Manufactured by Blackhawk Mfg. Co. - Milwaukee WI
Assigned to Snap-On Wrench Co. - Milwaukee WI

This ratchet action is an in-line device used for "T" handled ratchet socket drivers produced by Snap-On Tools. The patent number also appears on a similar in-line ratchet produced by Blackhawk Mfg. A spring between two elements with "teeth" provides a clutch. Corresponding Canadian patent CA-235,173 was granted Oct. 23, 1923.
This is one of 85,196 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85904&pn=1,147,181 Quick Action Wrench Patentee: Joseph J. Markovich - Uniontown PA Granted:1915-07-20

Spring-tensioned toothed lever engages rack teeth on the adjustable jaw to hold adjustment. Described as an "improved wrench of the Stillson type." The specifications of improvement patent 1,492,478 imply that at least a limited number of this design were made.
This is one of 85,196 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85903&pn=1,492,478 Quick Action Wrench Patentee: Joseph J. Markovich - Uniontown PA Granted:1924-04-29
Manufactured by Quick Action Wrench Co. - Uniontown PA

Improvement to the design in 1,147,181, stabilizing the movable jaw, making the adjusting means more convenient, and adding "slanted teeth." A known example of the QUICK ACTION WRENCH includes a misleading July 20, 1920 patent date marking. The company formed in 1922.
This is one of 85,196 patents currently in the database at datamp.org

]]>