Abstract: The present invention discloses a wrench having an opening that fits different sizes of screwing and unscrewing objects such as bolts and nuts, and such wrench comprises a main body having a first clipping member and a second clipping member along the axis of the main body and being disposed on at least one of its ends, the first and second clipping members enclose an opening, and the lateral sides of the enclosed opening is for clipping and driving the external diameter of the bolts or nuts characterized in that the length of the front end of the first clipping member is longer than the that of the second clipping member, and a first blocking recession showing a pair of symmetric obtuse angles is disposed at the lateral side adjacent to the opening.

Abstract: A wrench for applying a force to a work piece comprises a handle having proximal and distal ends, top and bottom edges and a slot extending therethrough with a groove extending downward from the slot. A fixed jaw is mounted at the distal end of the handle having an inner, contact surface for contacting the work piece, and a moveable jaw is pivotally mounted at the distal end of the handle having an inner, contact surface for contacting the work piece. A spring is mounted in the handle having a distal end in contact with the moveablejaw for biasing the moveable jaw toward the fixed jaw. A slidable button is mounted on the top edge of the handle, with a spring mounted between the slidable button and the top edge of the handle. A connector is provided having a distal end fixedly attached to the moveable jaw and a proximal end fixedly attached to the slidable button by a pin. In operation, the pin rides in the slot and fits in the groove.

Abstract: A reversible adjustable wrench having a main body on which a slidable first jaw and a pivotally rotatable second jaw are disposed. In normal state, a leaning section of the second jaw is leant against a stop block to prevent the second jaw from being pivotally rotated. By means of rotating a spiral rod, the gap between the first and second jaws can be adjusted to snugly clamp different sizes of nuts or bolts. After moving the stop block, the second jaw has a space for pivotal rotation, permitting the wrench to be reversely wrenched.

Abstract: The invention relates to an open-end wrench having a clamping jaw which is rigidly connected to a wrench handle in a fixed manner. A spring-loaded, moveable clamping jaw is pivotally mounted on the fixed clamping jaw. A recess, which recoils opposite the plane of the clamping surface, is connected to the clamping surface of the fixed clamping jaw on the gripping side. The moveable clamping jaw has a recess located in the area between the clamping surface of the jaw and the pivot point thereof. In an opened state of the wrench, said recess approximately corresponds to the recess behind the fixed clamping jaw. The wrench can be handled similarly to a fixed open-end wrench, whereby it enables a ratcheting action and has a self-clamping operation.

Abstract: There is provided a process for enhancing the activity of a phenol oxidizing enzyme, comprising adding to the enzyme, as an enhancer for the activity of the enzyme, one or more compounds having the formula: wherein: A is an optionally substituted electron-withdrawing group, chosen from the group consisting of nitrile, carboxyl, and esters and salts thereof, amides, aldehydes, ketones, sulfoxides, sulfones, or sulphonates, and B is an optionally substituted electron-donating group, chosen from the group consisting of the oxide anion, sulfide anion, oxides, amines, imines, hydroxides, sulfides, ethers, carboxylic acids, and halogen substituents, and R1-R5 may each independently represent hydrogen, hydroxy, halogen, nitroso, formyl, carboxyl, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl, nitro, amino, phenyl, C1-C20 alkyl, C1-C8 alkoxy, carbonyl-C1-C6-alkoxy, aryl-C1-C6-alkyl, and R2 and R5 together may form an alkylene group or an alkenylene group.

Abstract: A wrench has a pair of jaws that are disposed on a handle and are spaced to define an opening for a workpiece. A pair of plates, each of which includes a workpiece engaging surface are mounted on the jaws for selective movement between first and second positions. In the first position, the plates are immobile with respect to each other so that rotation of the handle in a first direction causes the plates to grasp the workpiece between the engaging surfaces and turn the workpiece in the first direction. In the second position, a first one of the plates is pivotable with respect to a second one of the plates so that rotation of the handle in a second, opposite direction causes pivoting of the first plate and allows the engaging surfaces to slide over the workpiece, thereby allowing the workpiece to remain stationary.

Abstract: A hook screw driver includes a holding section including a first part and a second part that are releasably engaged together. At least one of the first part and the second part includes an inner side that has a compartment defined therein. A holding member is mounted in the compartment and made of a deformable, frictional material for securely holding a hook portion of a hook screw. One of the first part and the second part has a notch defined in an end thereof and communicated with the compartment. The notch is to be extended by a neck portion of the hook screw.

Abstract: A ratcheting open-ended wrench has a movable jaw pivotally attached to a fixed jaw. The jaws define an opening capable of receiving the hexagonal head of a fastener such as a nut, bolt, hose fitting or pipe fitting. The fastener may be turned by moving the handle of the wrench back and forth without disengaging the fastener from the opening. A stop prevents the movable jaw from moving in a way which would place excessive stresses on the movable jaw. An arc shaped bearing surface on the movable jaw is received in a mating bearing surface on the fixed jaw. The combination of the stop and the mating bearing surfaces greatly reduces shear forces on the pivot. The point about which the movable jaw pivots is located forwardly relative to the opening. A wrench according to the invention can be both strong and compact. The wrench is reliable simple to manufacture and may be made with only three or four parts.

Abstract: Wrench apparatus for rotating a body about an axis and including a jaw assembly having opposed jaw members, a lever assembly having lever means pivotally connected to one jaw member, and abutment means associated with an inner portion of the lever means and cooperable with the opposing jaw member for urging the jaw assembly into tight engagement with the body to be rotated upon rotation of the lever assembly about the axis of the body. The abutment means is adjustably engageable with the lever means whereby the operative position of the lever means relative to the jaw assembly may be selectively varied. The abutment means closes across the open end of the jaw assembly and is moveable independently of the lever assembly between an engage closing position and an open position at which the jaw assembly can be accessed through its open end.

Abstract: A tool for driving pedicle screws into vertebrae of the human spine has a shaft preferably with a handle at one end and, at the opposite end, a holder for receiving a preferably ring-shaped head which is flattened on opposite sides. The tool has a first clamping jaw (18) secured to the shaft (12), and a second loose clamping jaw (20) including a lateral projection which is tiltably received by the first clamping jaw (18). The tool has an axially slidable actuating member (32) which is guided along the shaft (12). The front end of the actuating member (32) engages the rear end of the second clamping jaw (20) and is preferably axially urged towards the second clamping jaw (20) by a threaded driving means.

Abstract: A ratchet wrench including a fixed jaw and a movable jaw attached to a body of the ratchet wrench and having V-shaped nut gripping portions opposing each other. The fixed jaw is pivoted to a forward end portion of the body and biased to rotate toward the movable jaw by a spring. An adjusting nut is provided rotatably about a longitudinal center axis of the body, and an adjusting screw rod is threaded into the adjusting nut so that it is movable back and forth along the longitudinal center axis of the body by rotating the adjusting nut in one direction or the other. The movable jaw is pivoted at a rear end portion thereof to the adjusting screw rod by a guide pin which is guided along a longitudinal slot provided in the body and, the movable jaw is biased to rotate toward the fixed jaw by a spring provided between the movable jaw and the adjusting screw rod.

Abstract: An adjustable wrench includes an elongated member including a first handle end and a second end. The second end includes a fixed jaw and an engaging section formed thereon. The fixed jaw has a first clamping section. A movable jaw has a second clamping section formed on a first end thereof and a second end pivotally connected to the engaging section of the elongated member. An adjusting device is mounted between the second end of the elongated member and the movable jaw to urge the movable jaw to pivot relative to the fixed jaw. A fine adjusting device is provided for actuating the adjusting device to urge the second clamping section of the movable jaw to move slightly away from the first clamping section of the fixed jaw. An elastic device is provided for retaining the adjusting device in position.

Abstract: A wrench includes a pair of jaws mounted to a handle. A first jaw is mounted for selective actuation by an actuator between a stationary position with respect to a second jaw so that the jaws engage and rotate the workpiece when the wrench handle is rotated, and a movable position with respect to the second jaw so that the jaws disengage and slide over the workpiece (e.g., in a ratchet-like manner) and allow the workpiece to remain stationary when the handle is rotated. The wrench operates in the selected mode of operation (i.e., driving or ratcheting) when the handle is rotated in either direction. Another wrench (which is not bi-directional) features a pair of plates pivotally mounted within cavities in a pair of spaced jaws on the wrench handle. Each plate includes a grasping surface for engaging a face of the workpiece and a curved peripheral surface which slidingly engages a curved bearing surface in the cavity so that the plate can pivot within the cavity.

Abstract: A wrench includes a fixed jaw (16) at one end of a handle (15) and a pivoted jaw (19) joined to the handle by a pivot (20) disposed in a plane (30). A spring (25) urges the pivoted jaw through a gripping position in which flat gripping surfaces (17, 18) are parallel and separated by a distance which equals the size of the bolthead or nut to be turned. The plane (30) extends through the proximal edges of the surfaces (17, 18) which are flat from the plane to the distal edges of the jaws, and perpendicular to the plane. An auxiliary lever (45) assists in ratcheting. The wrenches may be single ended, double ended, or adjustable, in which case, an integral pivot bar (50) slides within the wrench handle perpendicular to the gripping surfaces (17, 18). A plurality of springs (25b, 25c) may be used.

Abstract: A side-entry, ratcheted wrench assembly having a handle segment, and first and second jaw members, each including a collar segment, a hub segment, and a pivot segment extending from the hub segment. Both the collar segments include exterior and interior ends, and an interior contact face extending therebetween, and define a bolt retention area wherein a bolt is retained. Further, the first pivot segment is pivotally secured to the handle segment, and the second pivot segment is pivotally secured to the first hub segment so as to provide for pivotal movement of the jaw members relative to one another between an engaged and a disengaged orientation. The engaged orientation includes the interior ends of the collar segments abutting one another so as to retain the bolt in the retention area, without clamping down on it, and is achieved and locked upon pivotal movement of the first jaw member in a first direction relative to the handle segment.

Abstract: An open-end wrench for gripping a hardware element such as a hexagonal nut or the hexagonal head of a bolt is disclosed which allows the wrench to be used for rotational driving of the hardware element in either direction without requiring the wrench to be periodically removed, repositioned, and replaced on the hardware element in order to continue rotation of the hardware element in the desired direction. A retaining member having an opposing jaw is mounted onto a handle having a fixed jaw in a manner whereby the retaining member has simultaneous freedom of movement in both a linear direction and in a rotational direction between first and second positions. When the handle of the wrench is turned in one direction, the nut or the head of the bolt will be rotated, while when the handle of the wrench is turned in the opposite direction, the jaws of the wrench will slip over the nut or the head of the bolt in a ratcheting manner.

Abstract: A device for manipulating a connector which has an open-ended socket portion that receives a connector. The socket portion has a slot extending along its side for receiving a lead extending from the connector. Tabs limit the extent that a connector may move into the socket portion. A circumferential cut-out in the socket portion accommodates movement therethrough of selected latch edges of a grab member. An elongate shaft joined to the grab member extends away from the socket portion and provides a handle.

Abstract: A wrench is disclosed having hinged jaws which may be opened to be placed about an obstructed bolt, ferrule or other threaded connector. Once placed about the connector the jaws of the wrench are closed to provide contact between the interior flats of the wrench and the corresponding flats of the connector. Complemental elements moveable in parallel planes orthogonal to the jaws pivot axis and drive axis project from respective jaws and provide a means for engaging a torque-applying tool. Upon closure of the wrench jaws and elements are brought into register to permit attachment of the tool and thereby lock the hinged jaws of the wrench together.

Abstract: A tool arranged for the testing of automotive components, such as ball joints, is provided to include a handle pivotally mounted to an "L" shaped positioning leg. The positioning leg includes an upper cylinder mounted to the leg to receive a stud portion of a ball joint therethrough, with the lower cylindrical member defining a cup to receive a lowermost portion of a ball joint therewithin to permit pivotment of the "L" shaped leg relative to a handle pivotally mounted through the "L" shaped leg indicating deflection of a ball joint when the handle is pivoted relative to the "L" shaped leg. A modification of the invention includes magnetic insert members, each including parallel support legs to receive opposing ends of a shock absorber such as a gas-filled shock absorber to indicate resistance and deflection of the shock absorber in use.

Abstract: An open-end ratchet wrench includes a handle element, a first jaw portion which is integrally formed with the handle element, a slide portion, a second jaw portion which is integrally formed with the slide portion, a restricting mechanism and a biasing spring. The slide portion is slidably mounted on the handle element so that the second jaw portion is positionable in a normal position wherein the first and second jaw portions cooperate to define a mouth for receiving the head of a fastening element and the biasing spring biases the second jaw portion toward the normal position thereof. The restricting mechanism maintains the second jaw portion in the normal position thereof when the wrench is manipulated to rotate the head of a fastening element in a first direction so that a turning force is applied to the fastening element.

Abstract: A flare nut wrench is configured to minimize the possibility of the flare nut wrench slipping by having the socket of the wrench pivoted to a base portion at a point in spaced relation to a prong extending from the base portion. The prong has a prong face thereon, which engages an external face on the socket to squeeze the socket about the flare nut when one applies torque to the flare nut by applying force to a handle attached to the base. By squeezing the socket wrench about the flare nut, the tendency of the socket to slip and round off the flare nut is counteracted by the force applied to the socket by the prong.

Abstract: An open-end ratchet wrench includes a handle element, a first jaw portion which is integrally formed with the handle element, a slide portion, a second jaw portion which is integrally formed with the slide portion, a restricting mechanism and a biasing spring. The slide portion is slidably mounted on the handle element so that the second jaw portion is positionable in a normal position wherein the first and second jaw portions cooperate to define a mouth for receiving the head of a fastening element and the biasing spring biases the second jaw portion toward the normal position thereof. The restricting mechanism maintains the second jaw portion in the normal position thereof when the wrench is manipulated to rotate the head of a fastening element in a first direction so that a turning force is applied to the fastening element.

Abstract: An adjustable wrench comprising a handle, a stationary outer jaw member integrally formed with the handle and having at least one outer face and a support surface for a moveable jaw, and a moveable jaw member riding on the support surface and continuously supported thereby during its entire range of movement, the moveable jaw member having an inner face parallel to the stationary outer face whereby the turning of a nut placed between the stationary outer face and the moveable inner face creates a force a part of which is applied to the moveable jaw member in a direction perpendicular to the direction of travel of the moveable jaw member thereby forcing the moveable jaw member against the support surface.

Abstract: A ratcheting open end wrench is designed to be employed in close places to remove nuts and bolts. Primarily, it consists of a handle having a fixed jaw and a pivotal jaw, and the pivotal jaw is provided with an attached arm with a spur that engages with a lip of the handle to prevent over travel of the pivotal jaw.

Abstract: An adjustable socket-type oil filter wrench having a cup-like socket member for receiving an oil filter cartridge, a plurality of pivotable gripping arms circumferentially spaced about the socket member for radially inward and outward relative movement, and a cam arrangement for producing coordinated pivotal movement of the gripping arms for progressive gripping engagement with the circumferential periphery of an oil filter cartridge to apply removal torque thereto. The pivotal dispostion of the gripping arms enables the wrench to be used with oil filters of all conventional sizes.

Abstract: This is a constrictor wrench which can compensate for a wrench not being the exact fit to match the nut or object which it is to rotate or hold. The wrench has a first jaw and a second jaw with the face of the first jaw modified so that it has a recess which is substantially arcuate in shape and contour. A swinging jaw is provided which has one edge having a contour matching with the contour of the first jaw. The second edge of the swinging jaw is planar. A pressure arm connects the swinging jaw to the first fixed jaw. Biasing means are provided against the pressure arm to force the swinging jaw along the arcuate face of the top jaw away from the mouth of the wrench.

Abstract: A tamperproof fire hydrant which can only be operated with use of a special operating means or tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. The hydrant is provided with the usual polygonal end portion of the rotatable operating nut extending out of the top closure member. A dome shaped cap is mounted on the polygonal end portion of the operating nut for free rotation relative thereto, the dome shaped cap having a skirt with the lower edge thereof spaced from the tubular hold down nut or top closure member of the fire hydrant to provide a limited access space to the polygonal end portion for reception of the special operating means. The special operating means is also capable of being used as a tool to remove the nozzle cap off of the usual nozzle and to install the hose coupling on the nozzle.

Abstract: Emergency gas shut-off tool; comprising a three-dimensional shank, having an upper end terminating in a butt and an inverted U-shaped three-dimensional head mounted rotatably to the shank adjacent the butt so as to form a closed space therewith.

Abstract: This invention relates to an improved "lever lock" type wrench which has ratchet characteristics and a novel construction which makes it convenient to use. The construction includes an angled and compact head portion, a quick-release lever, and fully enclosed internal working elements which protects them from grease and dirt. Furthermore, a particular geometry is disclosed which permits the minimum amount of handle rotation for the wrench jaws to achieve the next successive grip in the ratcheting mode.

Abstract: Disclosed herein is an open-ended ratchet wrench which can turn a nut in one direction in a conventional manner and which can have the open-ended jaws expanded to allow the wrench to ratchet back around the nut. This is accomplished by providing a lower jaw member pinned to the main body which is held in a normal position by a pawl. When force is placed against the pawl, it rotates to allow the lower jaw member to rotate to an expanded position. Both the lower jaw member and the pawl are biased to the normal position by springs. The lower jaw member is pinned to the main body by a cam inserted into a cutout in the main body.

Abstract: A starter for a nut, the starter having blades with outer edges possessing at least one innermost flat, at least one outer flat and a step connecting said flats.

Abstract: A tight-grip wrench has attributes of both a closed-end wrench and an open end wrench by having a handle which moves a large jaw relative to a small jaw.

Abstract: An adjustable wrench particularly suited for use on six-sided fasteners. The wrench has a handle that mounts two adjustable arms that each have a gripping head formed on an end portion that projects from the handle. The handle has a fixed flat surface on its top end located between the two projecting arms. The wrench includes a mechanical arrangement to move the arms into and out of a gripping relationship with the fastener. The arms are positioned with respect to the handle and the flat surface so that the flat surface and gripping surfaces of the gripping heads are in an abutting relationship with the associated fastener sides regardless of its size. This three-sided contact on the fastener results in an equiangular distribution of force exerted upon the fastener.

Abstract: The present invention pertains to an instrument for insertion into the body which can grasp and crush or grasp and remove kidney stones, the jaws of this instrument being moved together or apart by means of a shape memory metal alloy.

Abstract: A wrench has a pair of jaws which oppose each other to define the wrench opening. One of these jaws is pivotally mounted on the wrench body while the other may be fixed and integral with the wrench body. The pivotal jaw pivots in opposite directions so as to close the wrench opening and engage and drive a nut or bolt head when turned one way and to open the wrench opening and turn freely about the nut or bolt when turned the opposite way. The pivot about which the pivotal jaw rotates is on the same side of the wrench opening as the pivotal jaw itself such that the sum of the moments of the forces on the pivotal jaw close the jaw and align it with the nut or bolt head automatically at the start of the forward or driving stroke without any lost rotational motion or the need for springs or special cam surfaces.

Abstract: A ratcheting open-ended wrench includes a fixed jaw and a pivoted jaw arranged in relationship to each other to define an in-line insertion opening aligned with the operating handle portion in accordance with a conventional open-ended wrench. The fixed and pivoted jaws are formed with cooperating notched faces creating a multiple pointed configuration equivalent to a socket or closed-end wrench for mating with a hex-type head in different angular orientation. The fixed and pivoted jaw include a force transmission arm and recess such that the turning force is transmitted from the fixed jaw directly to the pivoted jaw. The pivoted jaw has a pivoted connection to one side of the handle and extends across the end of the handle and then outwardly to locate the fulcrum permitting application of closing forces in one direction and the ratcheting release on the reverse stroke.

Abstract: An implement for attaching hangers such as screw eyes, screw hooks and the like to surfaces particularly ceilings and walls in which the hanger is held in the body of the implement with the screw end directed outwardly. The hanger is secured by a pivoted cover which releases the hanger from the body upon a contact activator positioned on the implement contacting the ceiling or wall. Upon such contact the cover is opened and the continued rotation of the implement immediately frees the hanger from the implement without further action by the operator.

Abstract: An open end one way torque wrench has a wrench head recess in which a pair of articulated jaw members is adapted to receive and apply torque to a multifaced element by turning the wrench in one direction, and the jaw members automatically release and move into engagement with the next succeeding faces of the element by swinging the wrench in the opposite direction. The wrench head has a substantially semicircular track on which one of the jaw members rides. The other jaw member rides a tangential extension of the track. The jaw assembly is normally biased toward a torquing shoulder from which the assembly retreats during the release and re-engagement action of the jaw assembly.

Abstract: A combination tool for completing sprinkler installations having pivoted clamping jaws and a wrenching tool one end of which is disposed on an elongated handle. The clamping jaws are especially adapted to engage a pivoted escutcheon plate and are operable to close the escutcheon plate in a position about a conduit or pipe while the wrench is used to engage and rotate a sprinkler drop head or similar structure and move such structure to an adjusted position.