Abstract: Pliers with parallel jaws include an upper portion having an upper jaw of upper teeth, a lower jaw portion having a lower jaw of lower teeth. The lower jaw portion includes first and second pivot points. An adjustment portion is non-pivotably coupled to the upper portion and selectively movable relative thereto and includes a first pivot point. A lower handle includes first and second pivot points. A break over link includes first and second pivot points pivotably coupled to the adjustment portion and lower handle's first pivot points, respectively. A two-point link includes first and second pivot points pivotably coupled to the upper portion's and lower jaw portion's first pivot points, respectively. A three-point link includes first and second pivot points pivotably coupled to upper and lower jaw portions' first and second pivot points, respectively, and a third pivot point pivotably coupled to the lower handle's second pivot point.

Abstract: The present invention is directed to kit or assembly of hand-held jewelry tools. The kit includes a least one pair of handles and one or more pairs of interchangeable jaws. Each set of jaws when attached to the pair of handles is adapted to perform a particular jewelry task. Because the kit includes a variety of interchangeable sets of jaws, it is possible to perform many different jewelry making tasks using the present kit.

Abstract: A hand tool embodying a wrench or pliers having: a fixed upper jaw being in parallel relationship to a movable lower jaw; the upper jaw integrally constructed to a rectangular support member; the support member integrally formed to a horizontal fixed lower handle; the lower jaw slidable in and contiguous to the support member; the lower jaw made attachable to a rotatable upper handle; the upper handle being opposed over the lower handle; a spring mechanism tensioned to urge the lower jaw, the upper handle, a toggle mechanism and a release lever mechanism away from and backwards of the upper jaw; an adjustment screw or toggle screw mechanism rotatable for an adjustment angle of the toggle; the release lever made rotatable in the upper handle; the release lever levered off of the toggle; and a compound toggle link mechanism levered off of the toggle as an alternate release lever design.

Abstract: “Parallel Jaw Locking Toggle Wrench/Pliers with Economic/Ergonomic Handles” comprising: a fixed jaw member being in parallel relationship to a slidable jaw member; the fixed jaw member constructed (by riveting or welding means) to support member - the support members being formed integral to a lower handle; the slidable jaw member slidably contiguous to said support member; the slidable jaw member pivotably attachable (by riveting) to a rotatable upper handle opposing said lower handle; a spring tensioned to said slidable jaw member - with the spring attachable to said lower handle; the spring allowing for the operation of said slidable jaw member, a toggle, said upper handle, and an adjustment screw; the toggle pivotably attachable (by riveting) to said upper handle; the toggle pivotably contacting said adjustment screw; the adjustment screw rotatably mounted in said lower handle; a release lever levered off of said toggle; the release lever pivotably attachable (housed) in said upper handle; and a compound

Abstract: Methods and apparatus are disclosed for assuring or determining appropriate closure of a crimp ring assembly. In some embodiments, positive stopping apparatus on the crimp ring are used to assure appropriate closure of a crimp ring assembly. The positive stopping apparatus may be adjustable or non-adjustable and may be positioned on the free ends or adjoined ends of the segments of the crimp ring. In some embodiments, adjustable and/or cam operating pivot connections on the crimp ring are used to assure appropriate closure of a crimp ring assembly. In some embodiments, sensing apparatus or systems are disclosed for assuring or determining appropriate closure of a crimp ring assembly.

Abstract: A clamping device utilizes the mechanism of conventional vise-grip locking pliers to clamp internally or to expand workpieces with adjustable force. The invention comprises a fixed arm, a movable arm with quick release mechanism, a pair of special design, crossed clamping arms with jaws. Also included with the invention is the rear adjustment screw attached to one end of the fixed arm for setting the clamping gap and the clamping force.

Abstract: Pliers with self-adjustment capability for applying a grasping force to a workpiece and for augmenting the grasping force applied to the workpiece which include a first plier member, a second plier member, a first pivot, a second pivot and a first biasing spring. The first plier member includes a handle portion, a jaw portion, an intermediate portion, a coupling interconnecting the handle portion of the first plier member to the intermediate portion of the first plier member, and locking device. The second plier member includes a handle portion, a jaw portion, and an intermediate portion disposed therebetween. The first pivot includes a shifting slot portion, a transitional portion, and a positioning slot portion with a generally arcuate portion formed in said intermediate portion of the first plier member. The first pivot also includes at least one pivot member extending into, and movable within, the shifting slot portion, transitional portion, and positioning slot portion.

Abstract: The invention includes pliers with self-adjustment capability for applying an initial grasping force to a workpiece and for augmenting the initial grasping force applied to the workpiece. The pliers are structured such that angular displacement of a handle portion of a first plier member is smaller than angular displacement of a jaw portion of the first plier member during an initial movement of the handle portions toward each other for applying the initial grasping force to the workpiece. In addition, the pliers are structured such that angular displacement of the handle portion of the first plier member is larger than angular displacement of the jaw portion of the first plier member to permit augmenting of the initial grasping force applied to the workpiece during a continued movement of the handle portions toward each other.

Abstract: A hand tool having a first handle with a front end and a blade end including a hollow frame and a sliding jaw both mounted on the front end thereof. The handle also has a core pin and a regulating screw rotatably mounted on the core pin, both located within the hollow frame. A second handle has a front end and a fixed jaw located at the front end thereof. A pivotal joint pin pivotally connects the first and second handles together with said jaws generally facing each other so that the handles are movable between an open and closed position, and the hand tool is usable as pliers. Locking means lock the handles in the closed position, so that the hollow frame is usable as a hammer head. Also, in the locked position, the sliding jaw is operatively connected to the regulating screw so that rotation of the regulating screw moves the sliding jaw with respect to the fixed jaw, whereby the hand tool is usable as a monkey wrench in the closed position.

Abstract: An electrically heated convertible tool for removing a golf club head from a shaft inserted in the hosel of both metal and wooden golf club heads includes a pair of plier-like pivotally connected opposed jaws each carrying an electric heating block. The heating blocks are disposed in opposed clamping relationship and are each provided with an arcuate recess sized to closely engage and heat the tapered hosel surface of a metal golf club head. The blocks are adjustable relative to each other to accomodate for size variations in hosels. An elongated heat exchange member having a head sized to be clamped in the arcuate recesses of the blocks and an elongated linear portion sized to be insertable into the interior of a hollow metal golf club shaft is provided to permit use of the tool to heat the hosel of a wooden club head. The tool permits heat to be applied to the hosel of the club heat to soften the cement holding the hosel to the shaft of the golf club.