Abstract: A wrench for rotating a hex head fastener has a frame having one or two jaw faces. If the frame has two faces, they form a 60 degree angle between them. A movable jaw has two faces forming an angle of about 120 degrees relative to each other. A guide connected to the frame controls movement of the movable jaw along a line forming an angle of about 40.9 degrees with respect to a position of one of the frame faces.

Abstract: An adjustable spanner is provided. The adjustable spanner may comprise a pair of jaw arms, co-operating to move relative to one another, the co-operating jaw arms are each provided at their ends with a jaw, wherein two adjacent jaws constitute a spanner head; a housing for receiving the co-operating jaw arms, the co-operating jaw arms slide longitudinally relative to the housing for setting pre-selected discrete standard fastener sizes, wherein the jaw arms are substantially identical, and are received in the housing being rotated 180° relative to one another about their longitudinal axis.

Abstract: A wrench having two separate jaw arms, at least one jaw member on each said arm, and a sliding cam engaging the two arms, so that the two arms can be adjusted together or apart while maintaining the respective jaw members in a precise parallel relationship, and in which the cam engages both the jaw arms simultaneously.

Abstract: A wrench having two separate jaw arms, at least one jaw member on each said arm, and a sliding cam engaging the two arms, so that the two arms can be adjusted together or apart while maintaining the respective jaw members in a precise parallel relationship, and in which the cam engages both the jaw arms simultaneously.

Abstract: An adjustable spanner is provided. The adjustable spanner may comprise a pair of jaw arms, co-operating to move relative to one another, the co-operating jaw arms are each provided at their ends with a jaw, wherein two adjacent jaws constitute a spanner head; a housing for receiving the co-operating jaw arms, the co-operating jaw arms slide longitudinally relative to the housing for setting pre-selected discrete standard fastener sizes, wherein the jaw arms are substantially identical, and are received in the housing being rotated 180° relative to one another about their longitudinal axis.

Abstract: This tool substantially extends in a general plane (XY) and comprises: —at least one working head (12, 13) intended to cooperate with the fastener; —a handle (14) which is integral with the or each working head; the handle extending along a longitudinal axis (X-X) and comprising a linear portion (15) and at least one connection portion (16, 17) which connects the or each working head to the linear portion, the linear portion of the handle having a section transverse to the longitudinal axis (X-X) which comprises a relatively large transverse dimension substantially parallel with the general plane of the tool (XY) perpendicular to the longitudinal axis (X-X), and a relatively small dimension perpendicular to the general plane of the tool (XY). The large dimension and the small dimension of the transverse section are changing along the longitudinal axis. Use in flat wrenches, combination wrenches and ring wrenches.

Abstract: Tool with self-locking grip featuring a handle (1), two levers (2a) and (2b), and a self-locking device (3), in which the handle (1) features a main body (45), containing two prismatic housing-guides (4a) and (4b) which hold the two levers. These are removable and interchangeable with other levers for performing different mechanical functions, where the self-locking device (3) is kinetically connected between the main body (45) and one of the levers. The main body (45) also contains a third prismatic guide (9) for a further removable lever (10); this lever, being connected as required to the same a self-locking device (3) and sliding inside its own housing, approaching a counter element (14) fixed to the main body (45) allows vice-like fastening of the tool to a protruding part of the work bench.

Abstract: A multi-purpose tool is provided and includes first and second elongate body members each having first and second ends. A torque surface is formed at one of the first and second ends of each of the body members. The torque surfaces are adapted for engagement with workpiece surfaces such as the flats of polygonal fastening elements. Driver heads are formed at the other ends of the body members and are adapted for engagement in slots of slotted fastening elements with the first body member driver head configured differently from the second body member driver head. The body members are secured together to allow relative movement therebetween with the torque surface of the first body member and the torque surface of the second body member generally facing each other to define an adjustable opening therebetween. The driver heads of the body members are adjacent to each other for exposing one of the heads beyond the other.

Abstract: A multi-purpose adjustable hand tool. The hand tool includes at one end thereof a closed box end having an adjustable opening for accommodating different size components. The other end of the multi-purpose hand tool is configured to accept a plurality of different linearly adjustable grasping members, which are adjusted at the same time the box end effective opening is adjusted. A pliers handle and grasping portion may be pivotally connected to the end of the slide for providing an adjustable pliers. Means are provided on the hand tool for linearly positioning the slide within a channel of the handle, thereby effectively changing the size of the tool grasping members.

Abstract: A gripping box-wrench for engaging and torquing either undistorted or stripped nuts and bolts in tight spaces. A separate cam lever articulated from the wrench engages a rotatably-retained cam to apply a gripping force within a thin-wall polygonally-fluted box structure engaging a polygonal workpiece such as a hexagonal nut or bolt. Being applied by means of a separate cam lever, the gripping force may be varied independently of or proportionately with the torquing moment applied to the workpiece to increase the gripping force as necessary to retain engagement of a workpiece too distorted for torqueable engagement with the box structure. An undistorted nut or bolt may be engaged and torqued in the usual manner without requiring a gripping force. The box-end has a thin-walled geometry suitable for engaging workpieces in tight spaces.

Abstract: An adjustable eyebolt key includes a flat stem element having side limiting bars extending along the length thereof, an underside center section of a lesser thickness connecting the side limiting bars and which defines a recess therein and two key rings at opposite ends thereof; a tongue slidably positioned in the recess on the upper surface of the underside center section, with the ends of the tongue having the same thickness as the key ring within which it is slidable so as to adjust the grip of each key ring; a worm rotatably secured on the stem element for engagement with gear teeth at an edge of the tongue for actuating the tongue to move along the stem element so as to adjust the grip of each key ring; and a cross-tie in the vicinity of each key ring which secures the tongue on the stem element so as to permit movement of the tongue along the stem element.

Abstract: A wrench that combines the narrow profile of an Open End with the adjustability of a large in profile Adjustable wrench and that meets the "Wrench Clearances for Open End Engineers Wrench 15.degree.", (from SAE Aeronautical Drafting Manual). The turnbuckle principle linked to wedge pins that move through crossing slots provide for parallel movement of two slidably connected wrench-halves. Actuation mechanism is shifted from the standard head location to the intermediate portion of the handle and the ends of the wrench are designed for turning two consecutive size ranges.

Abstract: An adjustable double-ended box wrench (10,10') is disclosed as including a wrench body (12) defining large and small box wrenches (20,22), an adjustable jaw assembly (14,14') including an elongated adjusting member (54,54') and a rotatable adjuster (56) that moves jaw end surfaces (70,72) to adjust the sizes of the wrenches, and a cover plate (16) that is secured to the wrench body (12) to retain the adjustable jaw assembly (14,14'). Each of the large and small box wrenches (20,22) includes a pair of associated diverging portions (34,44) and a pair of converging portions (36,46) as well as an associated connecting portion (42,52) that connect the associated engagement portions. Each of the connecting portions (42,52) preferably has a connecting wall (76,78) with curved ends that are tangent to associated engagement surfaces (38,48) in order to prevent stress concentration during use.

Abstract: A speed wrench is equipped with an auxiliary jaw mechanism which can be selectively opened and closed by the action of a control link, thereby allowing the auxiliary jaw mechanism to clamp differently sized workpieces such as a screw nut or bolt. In order to accomplish this function, the speed wrench has a handle, a movable jaw, a movable jaw pin, a closed end wrench jaw, a joiner pin, a plate slidably mounted in a slot in the handle and an element for biasing the plate within the slot.

Abstract: A continuously adjustable wrench suitable for use with a range of nut or bolt head sizes and having a handle which is offset or angularly disposed with respect to the wrench head. The wrench provides contact with the nut or bolthead at three spaced, opposing points such that the rotational torque imparted thereto is optimized and the strength required for the wrench head for a given torque is reduced. In one embodiment, the wrench head is pivotally disposed with respect to the handle either about a single pivot or a double pivot to drive a camming contact surface on the handle into contact with a confronting surface of the nut or bolthead. In another embodiment, a contact surface is adjustable longitudinally along the handle to be positioned adjacent the nut or bolthead.

Abstract: A continuously adjustable wrench suitable for use with a range of nut or bolt head sizes and having a handle which is offset or angularly disposed with respect to the wrench head. The wrench provides contact with the nut or bolthead at three spaced, opposing points such that the rotational torque imparted thereto is optimized and the strength required for the wrench head for a given torque is reduced. In one embodiment, the wrench head is pivotally disposed with respect to the handle either about a single pivot or a double pivot to drive a camming contact surface on the handle into contact with a confronting surface of the nut or bolthead. In another embodiment, a contact surface is adjustable longitudinally along the handle to be positioned adjacent the nut or bolthead.

Abstract: An adjustable open-end and box-end wrench (10) is provided as including an improved mounting arrangement for a pair of jaws (20) of the open-end of the wrench. A pair of longitudinally spaced pins (40) on a housing (16) of the wrench are respectively received within a pair of skewed slots (42) in each jaw so as to provide opening or closing lateral movement of the jaws upon longitudinal movement thereof within the housing. An adjusting member (24) having an engagement surface (26) that cooperates with a box structure (22) to provide the box-end of the wrench is connected to the jaws (20) and selectively secured by a lock mechanism (18) to lock both ends of the wrench in any adjusted position. In one embodiment, a slideway (54) on the housing (16) mounts the adjusting member (24) for pivotal movement about a lateral axis so as to engage and disengage a pawl (56) and ratchet (58) between the housing and the adjusting member to selectively provide the locking.

Abstract: A double ended adjustable wrench for turning nuts, bolts, pipe and the like. The wrench is generally elongated in the manner of a conventional adjustable wrench, but the body of the wrench is made up of two substantially identical sections which are connected together for relative lateral movement toward and away from each other. The opposite ends of each section are appropriately shaped so that they cooperate with each other to define jaws which open and close as the two body sections move laterally. A mechanism is provided for movably connecting the two body sections together and for adjustably moving them relative to each other in order to open the jaws in a parallel manner a desired amount within predetermined limits. The jaws at one end are larger than the jaws at the other end, and at least one end of the wrench includes serrated jaws, so that a single wrench constructed in accordance with the principles of the invention replaces at least two if not three standard adjustable wrenches.

Abstract: A combination wrench is provided having an adjustable box-end wrench at one end and an adjustable open-end wrench at the other end. The box-end wrench includes a longitudinally movable adjusting member which forms a movable wall of a polygonal box structure integral with one end of a housing. The open-end wrench includes a pair of jaw members interconnected with the other end of the housing by a camming mechanism which effects lateral adjusting movement of the jaw members relative one another upon longitudinal movement relative the housing. The adjusting member and jaw members are coupled together for simultaneous movement to achieve same size adjustment at both ends. A one-way ratchet lock mechanism acts between the adjusting member and the housing and includes a plurality of ratchet teeth precisely located and spaced to size the wrences for each English size and metric size bolt to be fitted.