Abstract: A fixed adjustable wrench. The fixed adjustable wrench includes a handle having a fixed jaw and an adjustable jaw forming a gap therebetween. The adjustable jaw is slidable along a shoulder and is adapted to cooperate with the fixed jaw to secure an object within the gap. An engagement member having a first set of teeth is configured to selectively interlock with a second set of teeth of the adjustable jaw. A second end of the engagement member is operably connected to a lever that is selectively moveable between an engagement position and a disengagement position. In the engagement position, the engagement member is coupled to the adjustable jaw via an interlocking of the first set of teeth and the second set of teeth. In the disengagement position, the engagement member is disengaged from the adjustable jaw allowing selective positioning of the adjustable jaw.

Abstract: A pliers for a hose clamp is provided, including a pivoting assembly and a clamping assembly. The pivoting assembly includes a first shank portion and a second shank portion which are pivotally assembled with each other. The clamping assembly includes a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion are connected to the pivoting assembly, and the first clamping portion is actuatable by the first shank portion to change relative positions of the first clamping portion and the second clamping portion.

Abstract: A wrench comprising (a) a catch, including teeth; (b) a fixed part defining a first jaw, the fixed part including two teethed parts permanently attached to the fixed part, the fixed part configured so that the two teethed parts intermesh with the teeth of the catch; (c) a moving part, defining a second jaw, such that the first jaw and the second jaw define the jaws of the wrench; and (d) a spring, whereby: (i) the two teethed parts attached to the fixed part which together serve as a guide for the moving part that is movable inside the fixed part, allowing the catch, the fixed part and the moving part to slide over one another; (ii) the catch is located in, and attached to, the moving part and selectively fixes the moving part to the fixed part; (iii) the spring pushes the catch in a direction perpendicular to the longitudinal axis of the wrench against the two teethed parts; and (iv) the fixed part serves as a gripping handle with a jaws of the wrench at its end.

Abstract: A clamp device is disclosed having a first member having a handle portion and a jaw portion. A second member has a handle portion and a jaw portion. The handle portion and jaw portion of the second member define a notch extending from an inner surface of the handle portion of the second member at least partially into the jaw portion of the second member, the second member being formed as a single piece. A pivot is pivotally coupling the first member and the second member intermediate their respective handle portion and jaw portion for opposed pivotal motion. An arcuate clamp bar has a first end coupled to the first member and a second end, an arc of the arcuate clamp bar being concentric with the pivot. A brake lever has an end pivotally coupled to the second member at the notch. The end contacts the jaw portion of the second member. The brake lever has an aperture with the arcuate clamp bar extending therethrough.

Abstract: A locking pliers comprising a first arm and a second arm, a main rivet joins the two arms together in cross; a tensile spring wraps around the main rivet with two legs inside the two handles respectively; a teeth bar with one end joins moveably inside the joint of the first arm, the other end stretches downward into the handle of the second arm; a control mechanism located inside the first handle with a teeth structure on one side to gear into the teeth of the teeth bar and to offer an elastic strength to pull the teeth bar toward the protuberance, the other side stretches out of the handle of the second arm for users to adjust. Users can apply the present invention to clamp an object for more convenient, less strength and more stable clamping effect.

Abstract: A pair of pliers for disassembling a pipe-fastening clamp has two control members respectively having through holes. A control device is connected with the two control members and has two control tubular lines each inserted with a steel wire having one end inserted through the through hole of each control member. Each tubular line has one end provided with a positioning block and the other end fixed with a push member and the other end combined with two clamping blocks facing each other. The steel wire has one end fitted with a fixing member. Thus, the two clamping blocks are controlled to expand open the pipe fastening clamp for facilitating disassembling pipes.

Abstract: A clip is constructed to include two pivoted clip elements, a torsional spring provided between the clip elements and adapted to hold the clip elements in the open position, a toothed rod member and a pres control structure provided inside the clip elements and adapted to lock the clip elements in the close position to hold down the workpiece.

Abstract: A plier device includes two longitudinal elements pivotally secured together with a middle pivot shaft, and each having a handle member and a jaw member. A ratchet device is disposed in one of the longitudinal elements. A follower is rotatably disposed in the other longitudinal element and has a pawl detachably and adjustably actuated to engage with the ratchet device for adjusting the opening size of the jaw members. A knob is slidably engaged on the other longitudinal element and has an actuator engaged with the follower to force the pawl to engage with the ratchet device.

Abstract: A workpiece clamping device is formed of a first handle and a second handle which is pivoted with the first handle by a pivot in conjunction with a torsion spring. The first and the second handles are provided with a clamping portion having a head end. The head end is provided with a spherical cavity and a spring for fastening a clamping block which can be adjusted in angle and surface to facilitate the clamping of workpieces of various dimensions. The first and the second handles are provided in the pivoting portions thereof with a ratchet for providing a retaining mechanism so as to hold securely a workpiece. The workpiece is let go by a press block which causes the disengagement of the ratchets.

Abstract: Improved locking wrenches are provided with adjustment screws having a head portion and a flange extension associated with the lower handle. A locking element is provided which serves to lockably engage a restraining element associated with one of the adjustment screw and the flange extension. In this manner, inadvertent release of the clamping force exerted between jaws of the wrench may be prevented since the lower handle is restrained from moving into its opened stated relative to the upper handle.

Abstract: Releasable ratchet mechanism for medical instruments such as endoscopic instruments are disclosed. The ratchet mechanism includes: a leaf spring with a locking barb which is located on a handle of the medical instrument; a ratchet on a lever arm of the medical instrument which lever arm is pivotally engaged to the handle; and a latch on the handle of the medical instrument. The latch on the handle engages and resiliently deforms the leaf spring to cause engagement of the locking barb in a groove of the ratchet when the latch is in a first position. When in a second position, the latch releases the locking barb from the ratchet groove. Preferably, the locking barb has an extending edge surface on an axis which is substantially parallel to the pivoting axis of the handle and lever arm, and the teeth of the ratchet have extending edge surfaces on axes substantially parallel to the extending edge surface of the locking barb.

Abstract: Improved locking wrenches are provided with adjustment screws having a head portion which defines at least one opening registerable with an aperture defined in an extension member rearwardly extending from the lower handle of the wrench. In this manner, a restraining element may be placed through the registered opening/aperture to positionally restrain (immobilize) the upper and lower wrench handles relative to one another. The head of the adjustment screw and/or the extension member according to the present invention may be embodied in a number of alternative arrangements to provide the necessary cooperative relationship as between the opening and aperture respectively defined thereby.

Abstract: A locking ratchet wrench has a main body with an elongate handle portion and a stationary jaw at one end and a slotted guideway extending through the stationary jaw. A generally square aperture extends transversely through the stationary jaw and rearwardly from the slotted guideway. A movable jaw having ratchet teeth at its rear end is slidably fitted in the guideway. A locking pawl block is slidably retained for forward and rearward movement within the aperture and has locking teeth at the forward end thereof corresponding to the movable jaw ratchet teeth. A spring at the rear end of the locking pawl block normally urges it forward in the aperture. A movable handle pivotally mounted on the main body has front sides slidably received on each side of the aperture and movably connected to said to the locking pawl block to move it into and out of toothed engagement with the movable jaw ratchet teeth.

Abstract: A forceps for use in orthopedic surgical procedures having readily interchangeable tip elements and a reversible ratchet mechanism, for controlling the tip elements. A variety of tips for compression and distraction are provided. The ratchet mechanism permits controlled increments of force to be applied to the tips.

Abstract: Adjustable pliers of the tongue and groove jaw adjustment type in which the pivot pin carries and slides one member along a tracking section of an intermediate portion of the other member in an interlocking but free sliding manner and in which the pivot pin has been placed closer to the work center of the plier jaws for increased leverage of the tool.

Abstract: A locking device is provided comprised of clamping pliers having a threaded adjustment screw, and an associated padlock having a long U-shaped shackle. First and second stubs associated with the padlock are adapted to enter apertures in the handles of the pliers so that the handles cannot be moved apart from their clamped or locked state. One of the stubs forces a brake member against the threaded adjustment screw.

Abstract: A holding device for supporting a dental workpiece and the like is shown as having a main body attachable as to a cooperating base or sagger tray; the main body carries a fixed extending first arm; a lever is pivotally fixed to the main body and carries a second arm which when pivoted moves toward or away the first arm; a disengageable latching arrangement is provided whereby the lever may be effectively latched in any selected position as to thereby cause the first and second arms to hold the dental workpiece in a selected position.