https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=22697&pn=4,375,174 Adjustable End Wrench Releasable Locking Feature Patentee: Stephen E. Shanley Jr. - Grosse Ile MI Granted:1983-03-01
Manufactured by Tru-Grip Corporation - Riverview MI
Assigned to Shan-Lok Corporation - Grosse Ile MI

The patent is for a lever handle and linkage which tightens and can lock the grip of of the movable jaw on a "Crescent" type adjustable end wrench. Distributed as the "Tru-Grip Wrench." A 1985 ad lists three sizes: 8, 10, and 12 inch. The patents cited are: 599,379, 1,403,334, 1,490,903, 1,506,362, 1,771,692, 2,539,852, 3,190,154, and 3,333,492.
This is one of 83,707 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84409&pn=3,023,653 Worm positioning and locking lever for a slidable side jaw wrench Patentees: Kenneth F. Finn - Springfield IL , Donald J. Finn - Springfield IL Granted:1962-03-06
Manufactured by Finn Tool Co. - Springfield IL

Improvement to the design in 2,657,606 to include an internal "retaining" clip for the side handle, along with other refinements. The patent reflects the FINN TOOL Co. adjustable wrench with supplemental "crank" and adjustment lock. The specifications list patent nos. 2,596,266, 2,657,606, 2,692,523, 2,719,449, 2,729,999, 2,750,829, 2,813,444, and 2,829,650 as references.
This is one of 83,707 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=34314&pn=2,657,606 Adjusting and Lock Means for Slidable Jaw Wrench Patentee: Kenneth F. Finn - Omaha NE Granted:1953-11-03
Manufactured by Finn Tool Company - Springfield IL

The specifications describe jaw surfaces grooved to grip pipe. The primary feature of interest is the side lever which pulls out to provide extra leverage to the adjustment. A clip on the side of the handle stores the side lever when it is not needed. The wrench as produced includes refinements covered by patent no. 3,023,653. Pat. no. 2,750,829 (used by UTICA) and 2,729,999 cite this patent in the references.
This is one of 83,707 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=35500&pn=1,181,654 Wrench Patentee: Joseph Eifel - Chicago IL Granted:1916-05-02
Manufactured by FLASH SALES CORP'N - Chicago IL

A couple of different gear arrangements to transfer motion from the lever handle to the movable jaw are shown and described, along with several alternate jaw forms. The general principles are to have a tool that will not work open during use, and that has controlled pressure to avoid crushing. One of the forms in this patent evolved into the version shown in patent no. 1,862,817. Earliest production of the tool appears to have been attempted in 1918; one account says orders were taken, but the manufacturing arrangement failed. Known examples marked EIFEL-FLASH PLIERENCH MOD. 8"-A-21 // THE EIFEL-FLASH SALES CORP'N-CHICAGO PAT. MAY 2, 1926 with smooth handle surfaces and three interchangeable movable jaws appear to have been introduced in the fall of 1921. A slightly different version with "textured" handles followed -- EIFEL-FLASH PLIERENCH 8 1/2"-B-22 // THE FLASH SALES CORP'N CHICAGO / PAT. MAY 2, 1916. Later production of this form with "textured" handles and slightly different arrangement of parts had simpler markings -- EIFEL-FLASH PLIERENCH / PAT 5.2.16 // FLASH S'L'S CHICAGO. Eifel conducted an extensive ongoing advertising campaign for the plierench with a focus on direct marketing that included "agency" and "distribution" income potential.
This is one of 83,707 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84406&pn=1,679,934 Geometric Instrument Patentee: John F. Duby - Dorchester, Norfolk County MA Granted:1928-08-07
Manufactured by J.F. Duby Co. - Dorchester, Norfolk County MA

Abstract: This invention relates to geometric instruments, and is more especially concerned with a novel method of and means for measuring the inclination of the axis of the kingpin of the steering-gear of a land vehicle, such as a motor vehicle. Claim: Instrumentalities for measuring the angularity of the axis of the steering gear kingpin of a land vehicle with reference to a floor or other body having a plane sur-face, comprising in combination, a pointer, means for securing said pointer to the steering knuckle whereby said pointer may be moved with said steering knuckle in an arc about the axis of the king-pin, and means for utilizing the plane of said arc to ascertain the angular position of the axis of said kingpin with reference to said surface.
This is one of 83,707 patents currently in the database at datamp.org

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