Abstract: A positioning function when a width-across-flats dimension of a tool is adjusted and a function of preventing a deviation in the adjusted width-across-flats dimension are fulfilled by a projection of a flat spring part being fitted into each fitting recess. By selecting the line of a fitting recess to be used according to the standard of an object to be clamped such as a nut, the positioning function and the function of preventing a deviation can be easily and reliably fulfilled even for the width-across-flats dimensions of different standards.

Abstract: An adjustable wrench is capable of locking and of free and indexed opening and closing of jaws. The wrench operates by means of a multipurpose shaft. The shaft controls an adjustment screw to allow free movement of the wrench jaws, increment adjusting of the jaws, or locking of the jaws in place.

Abstract: A positioning function when a width-across-flats dimension of a tool is adjusted and a function of preventing a deviation in the adjusted width-across-flats dimension are fulfilled by a projection of a flat spring part being fitted into each fitting recess. By selecting the line of a fitting recess to be used according to the standard of an object to be clamped such as a nut, the positioning function and the function of preventing a deviation can be easily and reliably fulfilled even for the width-across-flats dimensions of different standards.

Abstract: A tool includes a handle, a working device, a positioning device, a clamping device, and a fine adjustment mechanism. The handle includes a pivotal end, a grip end, and a plurality of retaining sections. The working device is pivotally connected to the pivotal end of the handle. The positioning device is moveable between a fixing position and an adjusting position. The clamping device is adjustably positioned on the handle. The fine adjustment mechanism for fine adjusting the clamping device is adjustably positioned on the handle and engaged with the clamping device. The fine adjustment mechanism includes at least one positioning unit alternatively engaged with a selective one of the plurality of retaining sections to fix the clamping device to the handle in position. The clamping device is adapted to be fine adjustably moved through a distance smaller than a pitch between two adjacent retaining sections.

Abstract: An adjustable wrench includes two plates, a handle unit, a rotary unit and a control unit. Each plate has a first toothed portion. The handle unit is located between the two plates and includes a handle and a toothed ring. The handle has a second toothed portion. The toothed ring has multiple third teeth and multiple fourth teeth. The third teeth are engaged with the second teeth. The fourth teeth are located between the first toothed portions of the two plates. The rotary unit is located between the two plates and has a first jaw and a second jaw. The control unit includes having a controlling member and a resilient member. The controlling member is connected to the plate and has fifth teeth defined in one end thereof. The resilient member contacts the controlling member to engage the fifth teeth with the first and fourth teeth.

Abstract: An adjustable wrench with a ratchet function comprises a fixed jaw 1 and a movable jaw, wherein the fixed jaw has a receiving recess for receiving a screw, a first spring is disposed between the screw and the inner wall of the receiving recess, a shaft is passed through the first spring and the screw, the shaft is formed thereon with a blocking portion for catching a pin, an actuating portion protrudes from the end of the pin, the actuating portion of the pin abuts against the V-shaped push surface of an operating piece, and when pressing one of the ends of the operating piece, the actuating portion of the pin can be pushed by the V-shaped push surface so that the pin moves and disengages from the blocking portion of the shaft. At this time, the wrench can be counter-rotated to quickly perform screw locking action.

Abstract: A wrench includes a fixed jaw and a sliding jaw which has a cylindrical guide portion and two toothed surfaces are defined in axial direction of the portion. The two toothed surfaces are made by Metric and English systems respectively. Two pawls are engaged with a through hole in the head each include an engaging surface in a first end thereof and the engaging surface is composed of teeth which are removably engaged with on of the two toothed surfaces. The two respective engaging surfaces of the two pawls are made by Metric and English systems respectively. An operation unit controls the two pawls to be engaged with or disengaged from the two toothed surfaces of the sliding jaw.

Abstract: The present invention pertains to a jaw pipe wrench with resilient member comprising a wrench body penetrating through an actuating jaw, where a resilient member mounted and provides with one flat surface leans against said wrench body, so as to drive a serrated section of the wrench body firmly contacting with a serrated section of actuating jaw. While in manipulation, users initially propel the actuating jaw and synchronically compress the resilient member, the serrated section of the wrench body thus moves away from the serrated section of the actuating jaw, whereby users can freely raise or descend the actuating jaw in time of clamping, thus increasing the convenience of using.

Abstract: A rotation driver and method for transmitting a limit torque to a fastener by having cam members which rotate together for torquing and then reverse the rotation to return to their starting position for repeating the torquing. The same two surfaces respectively on the two cam members always contact only each other for the torquing. There is lost motion between the cam members at the end of the limit torquing, and there can be further application of torque beyond the limit. A calibration adjuster urges the cam members together, and a lock arrangement secures the adjuster in its calibrated position. Also, there can be drive rotation in the direction reverse from the limit torque application.

Abstract: A fast adjustable spanner comprises a body of which an action side is provided with a protruding stationary jaw of which a bottom is formed with a glide path communicating with an accommodation slot provided in the body; a movable jaw provided with a sheath fringe corresponding to the glide path on which the adjustable jaw may transversally move, a tooth portion being provided at a bottom of the sheath fringe; a working part provided in the accommodation slot to lengthways move, a protruding joint portion being above the working part and having a screw; at least one elastic part between the working part and the accommodation slot, supporting the working part for wedging the screw to the tooth portion of adjustable jaw; thus, when being compressed with an external force, the elastic part is separate from the tooth portion of adjustable jaw for fast adjusting the movable jaw.

Abstract: An adjustable spanner capable of adjusting size of an opening rapidly comprises a handle having a head and a fixing jaw; the handle having a sliding groove and a sliding path; an inner sliding path being extended with a shoulder; a movable jaw having a guide portion at one end thereof; a lower side of the guide portion having a teeth portion; a sliding block being installed in the sliding path; the sliding block having a teeth portion near the movable jaw and an elastic unit at a position far away from the movable jaw; and at least one pressible unit having an connecting unit and an operation portion; the connecting portion being connected to the sliding block; and the operation portion being at one side of the handle; an inner side of the pressible unit having buckling unit for resisting against the shoulder of the sliding path.

Abstract: The adjustable wrench has two wrench elements each having a jaw portion and a body portion, each body portion having angled tongues and grooves, slideably mounted opposite one another with the jaw portions opposing each other. Between the two body portions is an actuator having two sides. Each side has angled tongues and grooves corresponding to and slideably engaging the angled tongues and grooves of each of the body portions. The actuator moves along a longitudinal axis of the handle thereby urging the wrench elements and jaws towards and away from one another depending on the direction of movement of the actuator, by interaction of the inclined grooves, acting as wedges using the inclined plane principle.

Abstract: A lightweight, adjustable wrench comprising of a moveable jaw with a reach that is shortened or lengthened with a strap or a cable. The loose end of the strap or cable is secured to the wrench's shank by a cam lock, or similar locking device. Since the strap or cable is the means for the wrench's jaws adjustment, a quicker and easier fit to the pipe or object to be gripped can be obtained. The wrench is more convenient to adjust, since the means for adjustment are located near the handle of the wrench as opposed to the shank end of present designs. The strap or cable adjustment also allows the wrench's shank and handle to be designed hollow and a larger diameter to reduce weight. The wrench can be made in any proportion for any sized application.

Abstract: An adjustable wrench and method for loosening or tightening a fastener includes a handle member having a fixed jaw segment, a substantially transverse channel therethrough, and a void in communication with the channel. Also, a movable jaw member having a serrated toothed rack that is slidably engaged within the channel. In addition, a beam that is slidably engaged within the void, the beam including a toothed rack that selectably matably engages with the movable jaw toothed rack to help secure the jaw in position. Finally, included is a trigger member that is pivotally attached to the movable jaw member and is slidably engaged with the handle member, the trigger facilitates manual movement of the movable jaw from the closed state to the open state and vice versa, when the movable jaw toothed rack and the beam toothed rack are selectively disengaged.

Abstract: The present invention relates to an adjustable spanner (2) having a first fixed jaw (4) and a second moveable jaw (8). The second jaw (8) can be locked in fixed relation to the first jaw (4) by a locking means (16). This locking means (16) is moveable between a first position in which the second jaw (8) is fixed in relation to the first jaw (4) and a second position in which the second jaw (8) is permitted to move with respect to the first jaw (4).

Abstract: An adjustable wrench includes a handle having an end on which a fixed jaw is formed. The handle includes an engaging section and a transverse through-hole. A movable jaw includes a longitudinal hole through which the engaging section of the handle extends, allowing the movable jaw to slide relative to the handle. A retaining member is movably mounted in the transverse through-hole of the handle and biased by an elastic element to a position where toothed sections of the retaining member are engaged with toothed sections of the movable jaw, thereby retaining the movable jaw in place. The retaining member can be pushed to another position wherein the toothed sections of the retaining member are disengaged from the toothed sections of the movable jaw, allowing the movable jaw to slide relative to the fixed jaw.

Abstract: An open end wrench includes a fixed jaw, the fixed jaw having a dovetail tongue and a U-groove extended along the width thereof, a sliding groove formed in the dovetail tongue, and a stop block with a pin disposed at one end of the U-groove, a movable jaw, the movable jaw having a dovetail groove coupled to the dovetail tongue, a stop rod perpendicularly inserted into the sliding groove and movable with the movable jaw along the sliding groove, and a stop block with a pin disposed at one end of the U-groove, and a spring member received in the U-grooves of the fixed jaw and movable jaw and supported with the two ends thereof on the pin at the stop block of the fixed jaw and the pin at the stop block of the movable jaw.

Abstract: An adjustable self-locking wrench is provided. The wrench includes a handle, a base portion having an elongated groove and a locking chamber, a stationary jaw body, a movable jaw having an extension flange, a spring and a locking member. The locking member is movable between a first position wherein the locking member does not tightly contact the extension flange of the movable jaw and a second position wherein the locking member locks the movable jaw in a selected position relative to the stationary jaw.

Abstract: An open end wrench including a fixed jaw and a movable jaw keeping between them a constant relation of lateral slide to each other; a fluted surface being provided at the lower edge of the movable jaw; a spring being adapted between two jaws to define a clamping space under normal status; a locking gear permitting reciprocally flexible circulation having a ratchet to engage the fluted surface of the movable jaw under normal status and a dialer to keep the ratchet separating from the fluted surface being respectively provided at both ends.

Abstract: A adjustable wrench comprised of a body, a pressing piece, a sliding block and a micro-adjustment applicable to bolts of various sizes since the sliding block for adjusting the spacing between the micro-adjustment and a first and a second planes respectively can be automatically restored to its original location by means of the bouncing force provided by a first flexible element, and such spacing can be inched by rotating the micro-adjustment.

Abstract: An adjustable wrench including a fixed jaw, a movable jaw, a gear, an engaging block, a switch button and a grip. When tightening or untightening a nut with the adjustable wrench, it is unnecessary to repeatedly draw up the wrench and fit the wrench onto the nut. The nut can be continuously rotated. In addition, the switch button can be switched to change the rotational direction without reversing the adjustable wrench so as to facilitate operation and increase working efficiency.

Abstract: A wrench having a slidable actuator member within an elongate recess formed in the handle, the slide member being provided with a suitable pressure-operated knob for ease of manipulation. A flexible steel member is connected at one end thereof to the slide member, with the other end connected to the integrally formed slidable spine member or keyed shaft of the adjustable jaw of the wrench. A plurality of diamond-shaped openings are provided in a row of a recess cover for receiving a matingly configured member at specific locations along the length of the handle, with the openings located at points corresponding to predefined sizes or spacing of the jaws. The matingly configured member is operated into and out of engagement with the diamond-shaped openings on depression and movement of the knob to set the jaw opening to the desired size.

Abstract: A reversible/adjustable spanner includes an elongate body having a handle and a fixed jaw, a release button mounted above the body, a movable jaw, and an adjusting member. A substantially U-shaped plate is connected to the release button to move therewith and allows the body to extend therethrough. The adjusting member is securely mounted between the body and the U-shaped member and has an upper side with a plurality of teeth for engaging with a plurality of teeth on a bottom side of the body. The movable jaw has a a first end pivotally connected to one of the U-shaped member and the first end of the adjusting member and a second operative end for holding an object to be tightened or loosened between the second operative end and the fixed jaw, wherein a longitudinal movement of the release button causes a change in a distance between the fixed jaw and the movable jaw.

Abstract: A wrench including a main body having an elongate handle portion and a head portion, the head portion including a fixed primary jaw with a fixed grasping face and a pair of spaced, parallel track segments extending from the fixed grasping face, the track segments being spaced apart from one another so as to define a central channel therebetween.

Abstract: An adjustable wrench in which a slidable jaw is snapped toward a fixed jaw in an almost fully closed position by the force of a helical spring. The slidable jaw is not fully snapped closed to enable a close tolerance adjustment to be easily made for spacing requirements. The clutch teeth on the slidable jaw are locked in various equally spaced positions by counter acting locking teeth on an adjacent movable plate. The plate is held against the slidable jaw by a second helical spring located in the handle of the adjustable wrench.

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 pipe wrench that is readily fitted to a desired size by engagement of rack-like teeth on a stem portion with a movable jaw with co-engaging rack-like teeth, the pipe wrench being of a modern type and including means for retrofitting conventional modern pipe wrenches.

Abstract: An adjustable open-end wrench having an elongated body member, one end of which is a handle, and the other end of which includes a fixed jaw portion and jaw-base portion having a reentrant groove therein with a movable jaw member slidably mounted in the reentrant groove and a rack portion on the bottom of the movable jaw member for interaction with a second rack member located in another chamber in the body member located just below the reentrant groove, that chamber also housing the interior end of a button member which extends to the exterior edge of the wrench body member, and a lever member and biasing means for biasing the button member outwardly while biasing the rack members into engagement with each other. By simply pushing the exposed portion of the button member, the movable jaw is released for slidable adjustment of the width of the open-end wrench opening.

Abstract: A sliding jaw pipe wrench has a jaw adjustment mechanism comprising a longitudinally extending series of transverse recesses formed in one surface of a elongate shank on which the movable jaw of the wrench is formed. The shank is received in a retaining pocket in the wrench handle on which the stationary jaw is formed, and the handle includes a transverse locking pin for engagement in, and disengagement from the respective recesses to retain the movable jaw in position when engaged in a recess and allow the shank to be moved to adjust the jaws when disengaged from the recesses. The locking pin is operated by a trigger-like lever pivoted on the handle and connected to a locking pin by an elongate actuating rod. The wrench is provided with a fine adjustment mechanism in the form of a stud threaded transversely through an aperture in the handle so that the inner end of the stud can be tightened against an edge of the shank opposite the recesses.

Abstract: A sliding jaw pipe wrench has a jaw adjustment mechanism comprising a longitudinally extending series of transverse recesses formed in one surface of an elongate shank on which the movable jaw of the wrench is formed. The shank is received in a retaining pocket in the wrench handle on which the stationary jaw is formed, and the handle includes a transverse locking pin for engagement in, and disengagement from the respective recesses to retain the movable jaw in position when engaged in a recess and allow the shank to be moved to adjust the jaws when disengaged from the recesses. The locking pin is operated by a trigger-like lever pivoted on the handle and connected to the locking pin by an elongate actuating rod. A spring engaging the lever urges the locking pin into engagement with the respective recesses.

Abstract: The self adjusting pipe wrench includes a movable jaw that is spring urged to its closed position with respect to its fixed jaw. A lock element holds the movable jaw in a open, fixed position until it is disengaged from the movable jaw, whereupon the movable jaw moves into engagement with a nut, or the like, or to its closed position. A housing is located about the path of movement of the leg of the movable jaw and extends between the lock element and the joke of a handle to maintain the lock element out of force-bearing relationship with respect to the yoke.

Abstract: A pipe wrench which is locked in adjustment by engagement of rack-like teeth on the stem portion of the movable jaw with similar teeth on a slidable member carried in a wide groove in a rocking sleeve. The wrench is adjustable with one hand by squeezing the sleeve and slider to disengage the teeth, then moving the jaw stem via a spur engageable with the finger. The major parts of the sleeve and slider may be made of welded steel stampings.

Abstract: A self-adjusting pipe wrench which automatically positions itself about a desired article is disclosed. The term "self-adjusting" means that the pipe wrench can be automatically moved from an open position to a closed position when a specific member is actuated. The wrench comprises a wrench handle and a slidably mounted jaw member coupled to the wrench handle such that the jaw member may be selectively moved into a plurality of positions. A locking member is coupled to the handle and selectively engages the jaw member such that the locking member secures the jaw member in a predetermined position. An automatic return mechanism is coupled to the jaw member and to the wrench handle, whereby the jaw member is slidably moved into substantially closed position about a desired article when the locking member is disengaged from the jaw member.