https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=24328&pn=166,665 Wrench Patentee: Lucius O. Veber - Schuyler's Lake NY Granted:1875-08-10
Manufactured by Lucius O. Veber - Schuyler's Lake NY

The wrench has an intermediate jaw with a pipe gripping tooth on one face, and a smooth surface on the other. The intermediate jaw can be attached to either the fixed "hook jaw" or the flat faced movable jaw by means of a spring wire loop. The intermediate jaw can be slipped off and the pipe tooth inserted directly in the movable flat jaw to increase the wrench's capacity. The swinging handle moves the base of the adjusting screw, which is especially important when the wrench is used as a pipe wrench. Known examples are pipe wrenches with the pipe tooth directly on the movable jaw. On one the only readable marking is "PAT'D." Another is marked, "PAT AUG. 10, 1875" and "WARRANTED CAST STEEL" on opposite sides of the upper jaw. Some have been stamped with the Jan. 26, 1869 patent date corresponding to J.C. Rowe patent no. 86,322, but that design uses a different size adjustment principle.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=21624&pn=553,362 Pipe Wrench Patentee: Jay K. Sheffy - Chicago IL Granted:1896-01-21
Manufactured by Sheffy Mfg. Co. - Chicago IL

The cam action of the handle pushes the "pivoting" jaw toward the hook jaw. The specifications note the wrench would work on pipe or nuts. Corresponding British patent GB-189601485 registered Jan 21, 1896 claimed an Aug. 17, 1895 effective date.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=24344&pn=168,852 Improvement in Pipe-Wrenches Patentee: William K. Stevens - Mansfield OH Granted:1875-10-19
Manufactured by W. K. Stevens - Mansfield OH
Assigned to John B. Niman - Mansfield OH

The patent covers the toothed slide, and the renewable gripping surface. Marketed as the VICTOR ADJUSTABLE PIPE WRENCH. An 1879 ad is reprinted in Ken Cope's "American Wrench Makers 1830-1930." One known example is marked, "Pat. Oct. 19, 1875 // P Lathrop & Co. // Newark, N. J. " Another is marked, "W. K. STEVENS - PAT OCT 19 1875."
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=15552&pn=D76,122 Combined Pole Line Wrench and Hammer Patentee: Charles L. Clark - Pittsburgh PA Granted:1928-08-21
Manufactured by A. Bishop Chance - Centralia MO
Assigned to A. Bishop Chance - Centralia MO

The several square sockets and hammer poll on this tool match the lag screws, bolts, and climbing hardware used on power and telephone line poles. The tool is marked, "CHANCE SPECIAL CENTRALIA MISSOURI" A listing in a 1927 RAILWAY SUPPLY CO. catalog describes the tool and its advantages in line construction and maintenance.
This is one of 84,736 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=22752&pn=RE15,674 Pipe Wrench Patentee: Gottfrid C. Lawson - Cleveland OH Granted:1923-08-14
Manufactured by Fairmont Tool & Forging - Cleveland OH

The adjustable jaw passes through a slot in the shank, with the adjusting ring in a second slot at right angles. The patent describes tension springs to hold the jaw in the "open" position and retain the adjustment setting, but these springs are not found on known examples of the wrench. Some examples have a compression coil spring and "slide" in the fixed jaw between the gripping surface and adjusting nut.
This is one of 84,736 patents currently in the database at datamp.org

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