https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=27635&pn=2,447,094 Helical Spring Actuated Sliding Side Jaw Wrench Patentee: Royal H. Schlote - Milwaukee WI Granted:1948-08-17
Manufactured by Trebor Machinery Company - Milwaukee WI
Assigned to G. F. Schlote & Company, Inc. - Milwaukee WI

The side slide drives a helical slot in a shaft which transfers power through bevel gears to a worm that adjusts the movable jaw. The specifications cite patent nos. 703,898, 1,354,782, 1,391,180 and 1,739,182 as references.
This is one of 84,749 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=25184&pn=1,143,350 Pipe Wrench Patentee: Laurance D. Benedict - Chicago IL Granted:1915-06-15
Manufactured by Benedict Wrench Co. - Chicago IL

The handle can easily be extended for extra leverage. The BENEDICT EXTENSION HANDLE PATENT APPLIED FOR pipe wrench has a solid extension handle rather than the hollow tubular piece shown in the patent drawing; the remainder of the wrench matches the drawing. The actual patented feature is the spring and related structure around the movable jaw. This patent was cited as prior art in patent no. 2,555,395.
This is one of 84,749 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=25332&pn=895,285 Wrench Patentee: John R. Morris - Marshalltown IA Granted:1908-08-04
Manufactured by K. C. Drop Forge Co. - Independence MO

The wrench combines an adjustable "monkey wrench" with an alligator wrench. The drawings and specifications note optional arrangements. The version with the fixed alligator wrench end was produced. An early 8 1/2 inch long version is marked "PAT APP. FOR." That version and 10 inch variants (marked Marshalltown, IA) have the adjustable jaw with a "monkey wrench" adjustment as shown in the patent drawing. Later production (Independence, MO) have the adjustable jaw with an "auto monkey wrench" type adjustment.
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]]> https://www.datamp.org/patents/displayPatent.php?id=66660&pn=1,404,445 Shifting Spanner Patentee: Karl Kissendorfer - Oberndorf-on-the-Neckar Germany Granted:1922-01-24
Manufactured by Waffenfabrik Mauser, A.G. - Oberndorf-on-the-Neckar Germany
Assigned to Waffenfabrik Mauser, A.G. - Oberndorf-on-the-Neckar Germany

Screw- and quick-adjust nut wrench with the adjusting worm in a sliding frame at the base of the movable jaw. A compression spring holds the worm engaged with rack teeth on the shank. The angled jaws and tire iron handle end shown in the drawings are not noted in the claims. Corresponding British patent GB-193744 shows the wrench as produced, with the jaws at right angle to the handle, and no tire iron handle end. The specifications note parallel German and Spanish patent applications. The application for corresponding German patent 351,276 was filed Dec. 19, 1919.
This is one of 84,749 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=40392&pn=2,624,222 Adjustable Jaw Internal Wrench With Threaded Handle Patentee: Alfred R. Joy - West Hartford CT Granted:1953-01-06
Manufactured by R. M. Starbuck and Sons - Hartford CT
Assigned to R. M. Starbuck and Sons - Hartford CT

The patent's features are: ability to grip internal surfaces, telescopic action with a jaw on each section, and the jaws stay aligned. One jaw is fixed to the outer sleeve; the second jaw attaches to the adjusting screw. The attachments are made by removable pins to allow the parts to be replaced if they wear or break. The pins also serve to keep the jaw alignment. U.S. Patent nos. 1,301, 378,584, 850,900, 1,121,229, and French patent no. 13,381 (1855) are cited as references.
This is one of 84,749 patents currently in the database at datamp.org

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