Abstract: The present invention relates generally to a clamp for achieving tight miter joints in wood casings or other materials comprising mitered ends. The clamp according to the present invention comprises a first handle and a second handle attached to each other to form a handle member and a first jaw and a second jaw attached to each other a clamping member. The handle member and clamping member are attached to each other in a manner that creates an over center cam mechanism that prevents the clamping member from opening unless the handle member is also opened.

Abstract: Laborsaving pliers includes a first main body composed of a first handle at a lower end and a first working portion at the upper side. The first working portion is provided with a first combining member having a first jaw, and an arcuate slide groove is bored between the first combining member and the first handle. A second working portion is provided with a second combining member to be combined with the first combining member, having a second jaw corresponding with the first jaw, and the second combining portion has fixed with a combining rod. A second handle has an upper end secured with a sliding rod to slide in the arcuate slide groove, having a slide-joint groove positioned adjacent to the center for the combining rod to slide therein.

Abstract: A manipulator has a working unit in which when at least a first end effector finger and a second end effector finger are maximally closed on each other, at least the distance between a third joint axis and a first joint axis is greater than the distance between the first joint axis and a distal end of the second end effector finger, or the distance between the third joint axis and the first joint axis is greater than the distance between third joint axis and a second joint axis, or the angle formed between a direction from the third joint axis to the first joint axis and a direction from the third joint axis to the second joint axis is not ?.

Abstract: A hand operated tool for extracting an embedded elongated object, includes: a) an elongated, movable first handle member with a first, upper end portion divided into two matching legs separated by an opening; b) a corresponding second handle member with a first jaw member and a first, upper end extending through the leg opening, the second handle member being pivotally attached to both legs; c) a floating head portion pivotally attached to the first and second legs, the floating head portion including a second jaw member and an adjacent, upper curved edge; and d) two matching lever bars facing one another from opposite sides of the tool, each being pivotally connected to the second handle member and to the floating head portion; and wherein the second jaw member is engaged against the first jaw member in a closed tool position, and disengaged from the first jaw member in an open tool position.

Abstract: The present invention is a hinge repair tool constructed from two, spaced apart pairs of modified vise grip or wrench pliers. A single, elongated, upper bar is connected to the respective top jaws of each of the pairs of pliers. Two lower bars are also connected to respective lower jaws of the two pairs of pliers. Each of the pairs of pliers is operative independently of one another, so that each of the respective lower bars can be repositioned relative to the common upper bar. The lower bars are separated from one another and a gap is formed therebetween. A rigid bar is connected to the handles of the two pairs of pliers to provide additional stability. The vise grip pliers each include a mechanism for locking the lower jaw relative to the upper jaw thereof.

Abstract: Locking pliers include a stationary front jaw, a stationary handle, a movable front jaw, a movable handle, an adjusting screw rod, and a locking lever. The movable front jaw is moved toward the stationary front jaw to clamp an object therebetween when the movable handle and the stationary handle are forcefully brought together by an external force applied thereto. A releasing lever for unlocking the movable front jaw and the stationary front jaw has a flex wall body with a substantially flat central portion and two opposite curved side portions flaring curvedly and upwardly from the flat central portion. The flat central portion has a width larger than the diameter of the adjusting screw rod.

Abstract: A pair of pliers includes a first plier body including a first handle attached to a first end thereof and a second end. The first plier body further includes a mediate portion with a first pivotal section and a second pivotal section. A second plier body includes a first end with a slot and a second end that cooperates with the second end of the first plier body for exerting a force on an object between the second end of the first plier body and the second end of the second plier body. The second plier body further includes a mediate portion with a third pivotal section in pivotal engagement with the first pivotal section of the first plier body. The mediate portion of the first plier body and the mediate portion of the second plier body together define a compartment. A third plier body includes a second handle attached to a first end thereof and a second end with a rocker movably received in the compartment. The rocker is in pivotal connection with the second pivotal section of the first plier body.

Abstract: A toggle-link type hand tool is provided that includes pivotally interconnected elements having workpiece engaging members and a pair of handles each operatively connected to a respective one of the pivotally interconnected elements, and a toggle-link operatively connected between the handles. Additionally, each of the workpiece engaging members includes a self-adjusting jaw pivotally connected thereto and each jaw is configured to have an angle-shape for engagement with two adjacent sides of a hexagonal fastener. Additionally, the pivotable connection of at least one of the self-adjusting jaws to a respective workpiece engaging member may be provided by a slot formed in one of the jaw and the member and a pin fixed to the other of the jaw and the member to provide greater adjustability of the jaws. Furthermore, the workpiece engaging members may be configured to have a cutting surface, configured as straight blades or as curved cutting surfaces.

Abstract: A manuallly operated tool, wherein the manipulation of handles at one end of the tool results in a corresponding movement in jaws at the opposite end. The tool includes two handle elements, wherein each handle element has a first end and a second end. A first pivot joins the two handle elements together so that the distance between the first ends of each handle element and the first pivot is more than twice as long as the distance between the second ends and the first pivot. Two jaw elements are also provided, Wherein each jaw element has a working head end and an opposite tail end. A second pivot joins each of the jaw elements together so that the distance between the tip of each working head end and the second pivot is at least twice as long as the distance between each tail end and the second pivot. The jaw elements are pivotably connected to the handle elements, whereby the length of the handle elements in proportion to the jaw elements provide a mechanical advantage to the jaw elements of at least 2:1.

Abstract: A torque-latch ring plier system includes a ring plier having a pair of opposed arms with opposed semi-circular segments forming an annular receptacle. A connecting link joins the pair of arms at the annular receptacle for pivotable movement. A lever is rotatably mounted to one of the arms at about its midpoint and is rotatable to engage a reaction device on the other arm for urging the arms to pivot about the link and close the opposed segments. A coupler is associated with the lever to enable a torque wrench to be connected such that operation of the torque wrench is effective to operate the pliers and establish a selected torque at the opposed segments. The system further includes a tilting bench plate for releasably holding a device to be tightened for angularly positioning the device for ease of access.

Abstract: A surgical staple extractor which has a gripping portion and a pair spaced-apart jaws and an anvil associated with the gripping portion. Structures are provided with the gripping portion for moving the anvil and the jaws in a scissor action to transfer forces from the anvil and jaws to a staple retained therebetween in order to mechanically deform or reform the staple for extraction from a patient. Cams are positioned between the jaws and the anvil for positively camming or displacing the jaws outwardly when the anvil jaws and jaws are operated. Actuation of the gripping portion results in moving the anvil and jaws with the cams interacting between the anvil and jaws for positively displacing the jaws outwardly in relation to the anvil for promoting controlled deformation of the staple in a removal path approximating the entry path thereby disengaging the staple from the patient.

Abstract: A vise assembly which is able, with one single operation, to adapt to a nut and to lock into position with respect to the nut positioned between a pair compressing jaws. The locking function is readily releasible with a releasing device. Thus, with one direction of rotation of the vise assembly the vise assembly is adapted to conform and lockingly engage the nut and with an opposite direction of rotation, the vise assembly jaws automatically release upon activation of the releasing device.

Abstract: A compression forceps with four bar linkage is formed of a stationary handle and jaw connected by a shank area; a moveable jaw; a moveable handle having the approximate shape of a bell crank with major and minor arms; and a connecting link member having first and second opposite ends. The four links are joined at pivots, with a first pivot connecting the major and minor arms of the moveable handle to the rear end of the shank area of the stationary handle and jaw. A second pivot connects the free end of the minor arm to a rear end of the moveable jaw. A third pivot connects a first end of the link to the front end of the shank area of the stationary handle and jaw. A fourth pivot connects the second end of the link to a middle area of the moveable jaw. The compound linkage thus formed operates the jaws with an increase of the relative inside angle between the jaws as the jaws close.

Abstract: The necking pliers comprises a first arm having a U-shaped cross section and forming a nose in which is made a notch, with the notch defining blade-forming edges. The first arm is articulated to a second arm via a first pin placed near one end of the nose. The second arm defines a set of ramps for actuating at least one blade articulated on a second pin of the first arm, with the second pin being placed beyond the notch.

Abstract: The locking tool of this invention comprises three or more pieces. All three pieces are connected with an axle pin. A first handle piece has one or more arc-like slots which criss-cross with one or more coextensive, vertically-disposed slots in the second handle. A third piece has one or more arc-like slots exactly as the first piece and is normally held in direct alignment with the first piece. A locking pin is movably positioned in and through the three slots. When the first and third pieces are held in alignment, the pin moves freely through the slot allowing the second piece to move freely against the first piece. When the third piece is rotated to misalign the slots from the first piece, the locking pin is pushed to a tilted position against the walls of the slots to lock both the jaws of the tool in position, and the pins themselves, in both a radial and rotational manner.

Abstract: The locking tool of this invention comprises three or more pieces. All three pieces are connected together with an axle pin. A first handle piece has one or more arc-like slots which criss-cross with one or more slots in a second handle piece. A third piece called a jaw piece has a vertical slot that is coextensive with the other two slots. A locking pin is movably positioned in and through the three slots. When pressure is exerted upon the two handle pieces, this locking pin is tilted against the walls of the slots to lock the jaws of the tool in position. When pressure is exerted on the handles, the slots can leverage the pin both rotationally and radially. Resistance to the pin movement either radial or rotational causes the pin to be tilted against the walls of the slot in such positions as to preclude natural reversed movement of the pin as in a one-way valve.

Abstract: A tool for urging an enlarged head of a vehicular exhaust system mounting stud from an insulator. The tool includes a driver having a driving shaft for contacting the enlarged head and applying forces thereto. The tool also includes a support pivotally mounted to the driver. The support includes a pair of spaced apart arms. The arms define first and second supporting surfaces. The supporting surfaces are angularly aligned relative to one another such that the first and second support surfaces can be used sequentially for urging the enlarged head completely through the insulator.