Wrench with tightening grip
OwnerMatthew L. Collinsinventor
Life of this patent
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Abstract
A unique and novel adjustable wrench including a fixed handle (10) and handle jaw (10C), a movable handle (12), pivoting about a dog (16) and assembled to a slide (18) by a pair of links (24). The wrench features parallel jaws and provides a significant mechanical advantage by multiplying and transferring the operator's force to an object to be held and/or turned. A set of unique holding plates (40 & 42), in the shape of an `U`, attached to fixed handle jaw (10C) and sliding jaw (18) by means of mounting bolts (44 & 46). Holding plates (40 & 42) may be removed and/or reversed, this enables the wrench to be adapted to various work situations including rough plumbing, soft metal, and reverse thread.
Claims4
A mechanical device, comprising:
- a. a fixed handle combining a fixed jaw, a handle shank and a set of handle teeth, said fixed jaw is at an angle to said handle shank with said set of handle teeth on the side of said handle shank opposite from said fixed jaw,
- b. a slide combining a slide jaw and a slide housing, said slide housing capable of receiving said handle shank, said slide jaw at the same relative angle as formed by said fixed jaw and said handle shank, said slide having a hole on the end opposite said slide jaw,
- c. a movable handle with a channel shaped cavity and a set of pivot extensions, said movable handle assembled on the same side as said set of handle teeth, said movable handle having a hole position near said set of pivot extensions,
- d. a pair of links secured to said slide by a pivot bolt and pivoted about said movable handle at said set of pivot extensions,
- e. a dog with dog teeth, loosely fitted within said movable handle cavity by a pivot pin,
- f. a leaf spring positioned between said slide and said pair of links, means for maintaining a set position while said movable handle is in a static position.
Dependencies are inferred from the claim text.