https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=24901&pn=847,601 Ratchet-Wrench Patentee: George B. Pickop - New Britain CT Granted:1907-03-19
Manufactured by Crescent Mfg. Co. - New York NY

A spur on the handle fits into one of a series of notches on the top of the socket. Produced as the "PICK-UP PAT'D" -- most commonly found as a deep spark plug socket; also produced as the ratchet handle for a socket set, etc.
This is one of 84,737 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=34816&pn=1,571,148 Wrench Patentee: John Sisolak - Chicago IL Granted:1926-01-26
Manufactured by Handee Wrench Mfg. Co. - Mansfield OH

The patent describes a wrench with rotating sockets at both ends. Wrenches of this type are known as rotating socket bone wrenches. Some variants of the HANDEE wrench from Mansfield, OH have "Pat Appld," but the wrench was already marketed in late 1921. The STAR 8-in-1 wrench from Bellevue, OH has "cube" shaped heads rather than the reinforced edge openings and "rounded" head shown in this patent.
This is one of 84,737 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=21550&pn=120,947 Improvement in Duplex Wrenches Patentee: Augustus Ball Davis - Philadelphia PA Granted:1871-11-14
Manufactured by Philadelphia Tool Co. - Philadelphia PA

The improvement in this patent is a reversible hardened toothed plate for either the flat or beveled jaw on the pipe wrench side of the wrench. It is an improvement on Davis' previous patents (nos. 94,085 and 106,129). The example of Davis' Duplex Wrench in "Antique and Unusual Wrenches" (#575) shows this separate piece with teeth -- the markings cite the earlier patent dates. An 1876 hardware catalog listing notes the "Reversible Steel Jaws" available for repair / replacement.
This is one of 84,737 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=13728&pn=41,554 Pipe Wrench Patentee: William Webster - Morrisania NY Granted:1864-02-09
Manufactured by Webster & Co. - New York NY

Monkey wrench with interchangeable inserts for the adjustable jaw to add pipe wrench and pipe cutter functions. Complete wrench includes an auxiliary open end wrench (not shown in the patent drawing) to tighten the jaws when using the pipe cutting insert. Webster's specifications differentiate this design from J.E. Stanwood's April 26, 1859 pipe cutter 23,792, and G. B. Phillips' May 3, 1859 sliding jaw pipe wrench 23,857. The patented feature is the socket in the adjustable jaw and the pipe jaw and pipe cutter inserts. Early notices list Webster & Co. (New York) as maker and distributor; later manufacturer names taken from Ken Cope's "American Wrench Makers 1830-1930." The tool was widely advertised in the last quarter of the 19th Century -- 12", 15", 18" & 21". Few examples survive with either the auxiliary pipe cutter or pipe gripping jaw inserts.
This is one of 84,737 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=29983&pn=260,771 Monkey Wrench Patentee: Charles H. Miller - Erie PA Granted:1882-07-11
Manufactured by Girard Wrench Mfg. Co. - Girard PA

The parts are to be made of malleable iron castings. The slide for the head is cast "spread" and is closed around the head after the head and adjusting worm are installed. Most known examples do not have legible markings; some may have the patent date visible. Comparable Canadian patent no. CA-16,300 shows the Girard Wrench Company as assignee.
This is one of 84,737 patents currently in the database at datamp.org

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