Tools – Wrench – screwdriver – or driver therefor – Slidable jaw adjustments
Patent
1982-09-29
1984-09-25
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Slidable jaw adjustments
B25B 1316
Patent
active
044729863
ABSTRACT:
A lever locking worm adjustable wrench includes a handle terminating in a fixed jaw, a movable jaw slidably received in the handle in opposing relation to the fixed jaw, and rack gear teeth formed on the movable jaw. A worm mounting arm has a worm gear rotatably mounted thereon and is pivotally mounted on the handle to move the worm gear in a direction substantially tangential to the direction of the rack. An operating lever is pivotally connected to the worm mounting arm and is connected by a toggle link to the handle. Upon movement of the lever toward the handle, the movable jaw is moved toward the fixed jaw to grippingly engage a workpiece, such as a nut or bolt head therebetween. The toggle link, operating lever, and handle cooperate to define an over-center locking mechanism whereby the movable jaw is releasably locked in gripping engagement with the workpiece against the fixed jaw.
REFERENCES:
patent: 1181654 (1916-05-01), Eifel
patent: 1407528 (1922-02-01), Gordon
patent: 1410627 (1922-03-01), Thomas
patent: 1503662 (1924-08-01), Norton
patent: 1747360 (1930-02-01), Giles
patent: 2481866 (1949-09-01), Petersen
patent: 2524689 (1950-10-01), Westman
patent: 3190154 (1965-06-01), Chapman
patent: 3241410 (1966-03-01), Paden
patent: 3608405 (1971-09-01), Schmidt
patent: 4147077 (1979-04-01), Tasato
patent: 4375174 (1983-03-01), Shanley, Jr.
LandOfFree
Lever locking worm adjustable wrench does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lever locking worm adjustable wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lever locking worm adjustable wrench will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1765925