Abstract: A tightening machine has a socket unit which tightens a reaction washer and a nut to each other. The socket unit includes an inner socket whose tip end can engage with the nut, and an outer socket formed concentrically with the inner socket. A tip end of the outer socket can engage with the reaction washer. The socket unit concentrically includes an inner socket holder and an outer socket holder. The inner socket holder and the outer socket holder can rotate in opposite directions from each other, and the outer socket holder is formed around an outer periphery of the inner socket holder. The inner socket is detachably engaged with the inner socket holder, and the outer socket is detachably engaged with the outer socket holder. The inner socket is engaged with the inner socket holder with clearance in its circumferential direction.

Abstract: A power tong assembly and backup tong assembly are disclosed. The power tong assembly includes a drive motor driving a drive gear engaged with a rotatable portion of a bearing assembly. The rotatable portion of the bearing assembly is connected to a cylindrical rotor positioned concentrically about jaws that grippingly engage and rotate a first tubular member when the portion of the bearing assembly rotates. The backup tong assembly comprises a pair of diametrically opposed gripper assemblies each having a cylinder with a cylinder rod, connected to a head member, connected to a pair of gripper members with gripping surfaces, so that extension of the cylinder rods causes the gripper members to grippingly engage a second tubular member. The power tong assembly and the backup tong assembly may be concentrically aligned to connect and disconnect the first and second tubular members.

Abstract: A multi-axis temporary tightening tool includes: a tool main body formed into a ring shape; and a plurality of sockets which are arranged in a ring shape along the tool main body, are rotated by rotational, force input to the tool main body, and simultaneously apply rotational force to a plurality of screw members that are engaged in the sockets.

Abstract: A fastening system that comprises a fastener and a single tool that provides both snugging torque and final tensioning to the fastener assembly, from a single side, with a single operator, with no torque feedback. The fastener comprises a nut and a bolt with a head and a shank extending axially from the head. The shank has at least one threaded portion and at least one splined portion, the splined portion defining the end of the bolt. The splined portion remains connected to the threaded portion after final tensioning. The tool comprises a first socket and a second socket, wherein the first socket is engaged with an outer surface of the nut and the second socket is engaged with the splined portion on the fastener. Snugging torque and final tension are both controlled by the tool.

Abstract: An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.

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: Apparatus for use with a tool assembly in operations of tightening or loosening threaded fasteners (230) about an axis are disclosed, and in one example includes: a lower clamp assembly (110); an upper clamp assembly (120); a reaction adaptor assembly (130); and a spring assembly (140) formed between the upper clamp assembly and the reaction adaptor assembly. Advantageously an operator can tighten or loosen all fasteners without having to change the initial setup of the apparatus. The lower clamp assembly eliminates the need for extra operators and heavy and bulky equipment to hold the apparatus near the fasteners. The upper clamp allows the operator to rotate the apparatus around with ease. The spring assembly stabilizes and eases vertical height adjustment of the apparatus. The reaction adaptor substantially negates reaction turning forces of the tool assembly during the operations Drive knobs (312, 322) provide easy alignment of and quick and safe mounting of the tool assembly (310, 320) on the fasteners.

Abstract: A prior art sucker rod tong is improved to remove a coupling completely from a sucker rod assembly comprising sucker rods joined end to end by couplings. The prior art sucker rod tong has a rotatable jaw assembly and a lower backup wrench adapted to cooperate to unscrew a coupling joining first and second rods, where the coupling remains screwed to the second rod after it is unscrewed from the first rod. The improvement comprises a coupling extractor for unscrewing the coupling from the second rod so that the coupling can be replaced. The coupling extractor comprises a shaft having an extractor end portion on each end of the shaft and a shield around each extractor end portion, wherein the coupling extractor is designed and sized to fit within and to be rotated by the jaw assembly. The extractor end portion engages the inside wall of the coupling to unscrew the coupling from the second rod. The extractor end portion is preferably a tapered, left-handed spiral fluted easy-out extractor.

Abstract: A tightening head (1) is provided with at least two sockets (4i, 4ii) which are alternatively connected to an output shaft of a nut runner (3), a socket replacing mechanism (6) and a bolt supplying mechanism (7). The socket replacing mechanism (6) is provided with a moving mechanism (61) and a posture changing mechanism (64). The moving mechanism (61) moves each socket (4i, 4ii) between a using position where the socket (4i, 4ii) agrees with an axis of the output shaft of the nut runner (3) and a waiting position which is distant from the axis. The posture changing mechanism (64) changes a posture of each socket (4i, 4ii) to an upward posture corresponding to the waiting position and to a tightening posture corresponding to the using position. The bolt supplying mechanism 7 is provided with bolt magazines (8i, 8ii) and bolt holding mechanism (9i, 9ii). During a bolt tightening step is executed by one socket in the using position, the bolt (B) is supplied to the other socket in the waiting position.

Abstract: Adaptations, apparatus and methods are disclosed for associating various utility tools with a nut driving tool. The adaptation of includes a receiver connectable to one side of the nut driving tool adjacent to a socket driver. A utility tool mounting body includes a base portion releasably engageable with the receiver and a station portion on the base portion releasably engageable with the selected utility tool. The utility tool of this invention includes a head having a mounting interface, the station portion releasably engageable with the mounting interface of the utility tool head. In one embodiment, the utility tool is reaction unit for engaging a nut or a fitting body. In other embodiments, utility tools for tube cutting, sawing, and/or bending, and/or grasping of adjacent fitting types or fitting sizes are provided.

Abstract: The invention relates to a screwing tool that comprises a drive arranged in a housing and an output shaft connected to said drive, a screwdriver point being arranged at the front face of the output shaft. The aim of the invention is to provide a screwing tool with which different connecting elements, in particular actuating and clamping elements consisting of a screwable sleeve and an inner screw can be screwed with only a single screwing tool. In order to achieve this aim, the screwing tool comprises a receiving part (500) which surrounds the output shaft and is displaceably guided in the direction of the axis (202) of the output shaft (200) against the force of a return element (505).

Abstract: An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.

Abstract: A method for attaching a plurality of fasteners located along a circular path uses a screwdriving device that has feed drive outputs. The drive outputs correspond to the fasteners, are located on a circular path and include a screwdriving tool bit. During the method, the drive outputs are extended from a position of repose to a working position and the screwdriving tool bit, located at the fastener, screws in the fastener. The feed drive outputs are located on circular paths of different diameters and only those drive outputs located on a particular circular path, which corresponds with a circular path on which the fasteners are located, leave their position of repose. The number of feed drive outputs corresponds to the number of fasteners.

Abstract: A tightening machine has a socket unit which tightens a reaction washer and a nut to each other. The socket unit includes an inner socket whose tip end can engage with the nut, and an outer socket formed concentrically with the inner socket. A tip end of the outer socket can engage with the reaction washer. The socket unit concentrically includes an inner socket holder and an outer socket holder. The inner socket holder and the outer socket holder can rotate in opposite directions from each other, and the outer socket holder is formed around an outer periphery of the inner socket holder. The inner socket is detachably engaged with the inner socket holder, and the outer socket is detachably engaged with the outer socket holder. The inner socket is engaged with the inner socket holder with clearance in its circumferential direction.

Abstract: A clamping mechanism having two or more jaws which may be opened to allow a tubular to be introduced within the jaws and closed to retain the tubular therewithin. The rollers are located within concave recesses and maintained in spaced apart relationship by biasing means, whereby rotation of tubular may cause the rollers to be wedged between a wall of the recess and the tubular to grip the tubular within the jaws. The clamping mechanism may be utilized as an oil field tubular clamp, a slip, a pipe clamp, and other mechanisms. There is also disclosed a clutch comprising an outer race, a cage, and an inner ring. Recesses are provided in an outer race and accommodate rollers therewith and maintained in spaced apart relationship by the cage. The cage may be moved by an actuator to selectively allow free wheeling or prevent rotation. A socket ratchet incorporating such a clutch is also disclosed.

Abstract: An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.

Abstract: A tool includes a base ring which defines a multiple of bores, each of the multiple of bores sized to receive one of a multiple of socket assemblies. A slide ring mountable to the base ring to rotate the multiple of socket assemblies.

Abstract: An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.

Abstract: A torque-adjusting machine includes a securing fixture, a torque-detecting mechanism, a driving device and an adjusting mechanism. The securing fixture is capable of retaining a first bracket of a hinge. The driving device is capable of retaining a second bracket of the hinge. The torque-detecting mechanism is connected to the securing fixture and capable of detecting torque of the hinge through rotating the first bracket of the hinge relative to the second bracket of the hinge. The adjusting mechanism includes an adjusting pole. The adjusting pole is capable of moving from a first position, where the adjusting pole is capable of engaging with the hinge and adjusting the torque of the hinge by rotation, to a second position, where the adjusting pole is capable of being disengaged from the hinge.

Abstract: An apparatus for actuating fasteners includes at least first and second base supports, a plurality of engagement tools, and a compound peripheral actuator. The base supports are configured so that when they are brought into operable alignment, they form a periphery with an open interior, for extending around a first part connected to a second part. The engagement tools are rotatably coupled to the base supports, and each includes a rotator member and a fastener coupler. The compound peripheral actuator is dimensioned to extend around and engage the rotator members of the engagement tools around the periphery. In operation, the base supports are deployed around the first part, and moved for engagement of the fastener couplers with fasteners connecting the first part to the second part. The compound peripheral actuator is deployed to engage and rotate the rotator members, for simultaneous rotation of the fasteners connected to the fastener couplers.

Abstract: An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.

Abstract: A joint tool includes a first wrench assembly configured to be placed in gripping contact with a rod, a second wrench assembly including jaws configured to grip and rotate a rod when the second wrench assembly is rotated in a first direction and to rotate relative to the rod when moved in a second direction, the second direction being opposite the first direction, and a drive assembly mounted to the first wrench assembly and coupled to the second wrench assembly, the drive assembly being configured to rotate the rod in the first direction and the second direction.

Abstract: A dual screwdriver is provided for connecting and disconnecting a connector assembly having first and second jackscrew guideposts. In one embodiment, the dual screwdriver includes a housing, a user input rotatably coupled to the housing, first and second manually-bendable shafts each rotatably coupled to the housing, and first and second bits mounted to the distal end portions of first and second manually-bendable shafts, respectively. The first and second bits are configured to matingly engage the first and second jackscrew guideposts. A gear train is disposed in the housing and mechanically couples the user input to the first and second manually-bendable shafts. The rotation of the user input drives the rotation of the first and second manually-bendable shafts and, therefore, the rotation of the first and second jackscrew guideposts when matingly engaged by the first and second bits, respectively.

Abstract: A hand tool comprises a support, a handle, at least two spindles, a driver, at least two followers and at least two spanners. The handle is rotatably mounted on a middle portion of the support. The at least two spindles are respectively fixed to two opposite ends of the support by ends thereof. The driver is mounted on an end of the handle. The at least two followers are respectively rotatably attached on another end of each spindle and drivably connected with driver. The at least two spanners are attached on a surface of each follower which is away from the corresponding spindle.

Abstract: A tightening head (1) is provided with at least two sockets (4i, 4ii) which are alternatively connected to an output shaft of a nut runner (3), a socket replacing mechanism (6) and a bolt supplying mechanism (7). The socket replacing mechanism (6) is provided with a moving mechanism (61) and a posture changing mechanism (64). The moving mechanism (61) moves each socket (4i, 4ii) between a using position where the socket (4i, 4ii) agrees with an axis of the output shaft of the nut runner (3) and a waiting position which is distant from the axis. The posture changing mechanism (64) changes a posture of each socket (4i, 4ii) to an upward posture corresponding to the waiting position and to a tightening posture corresponding to the using position. The bolt supplying mechanism 7 is provided with bolt magazines (8i, 8ii) and bolt holding mechanism (9i, 9ii). During a bolt tightening step is executed by one socket in the using position, the bolt (B) is supplied to the other socket in the waiting position.

Abstract: Adaptations, apparatus and methods are disclosed for associating various utility tools with a nut driving tool. The adaptation of includes a receiver connectable to one side of the nut driving tool adjacent to a socket driver. A utility tool mounting body includes a base portion releasably engageable with the receiver and a station portion on the base portion releasably engageable with the selected utility tool. The utility tool of this invention includes a head having a mounting interface, the station portion releasably engageable with the mounting interface of the utility tool head. In one embodiment, the utility tool is reaction unit for engaging a nut or a fitting body. In other embodiments, utility tools for tube cutting, sawing, and/or bending, and/or grasping of adjacent fitting types or fitting sizes are provided.

Abstract: The invention relates to a method for screwing in several fastening means such as screws/nuts, which are disposed especially on a circular path, with the aid of a screwing mechanism (2) comprising feeding outputs (19) that are arranged so as to correspond to the screws/nut, particularly on a circular path, and are provided with a screwing tool. Said method encompasses the following steps: the outputs are deployed from a neutral position into an operating position; the screwing tools are placed on the screws/nuts; and the screws/nuts are screwed in by means of the outputs.

Abstract: An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.

Abstract: A dual fastener engagement tool includes a drive shaft engageable with a power drill. A housing includes a base section and a pair of arm sections attached to the base section. The housing includes a mounting sleeve that is rotatably attached to the base section. The drive shaft extends into the sleeve and rotates the sleeve when the power drill is actuated. A drive assembly is positioned within the housing. The drive assembly includes a pair of bolt head receivers. Each of the arm sections has one of the bolt head receivers positioned therein. The arm sections are positioned adjacent to a respective one of the distal ends of the arm sections. Each of the bolt head receivers is mechanically coupled to the sleeve and rotates when the sleeve is rotated.

Abstract: Method and apparatus to make-up or break-out a threaded tubular connection using an integrated power tong and back-up tong (10). The power tong (20) may be disabled upon sensing a predetermined threshold amount of displacement of at least a portion of a back-up tong (14). The sensed displacement indicates that the back-up tong (14) is slipping, and power tong (20) rotation may be disabled to prevent damage to the pipe string (16) or surrounding equipment. A slippage sensor (40) may be disposed to sense displacement of at least a portion of the back-up tong (14) relative to a supporting frame (12). In one embodiment, the slippage sensor (40) may be operatively coupled to a valve (50) disposed in communication with a fluid line (46) supplying power fluid to the power tong (20). The power tong (20) may be disabled by impairing flow to the power tong (20) upon sensing a predetermined displacement of the back-up tong (14).

Abstract: A vehicle toe set adjustment device and method for adjusting a vehicle tie rod includes an adjustment head adapted to be received over a tie rod. The adjustment head includes a surface for engaging a tie rod fastener, a plurality of moveable collet keys mounted on the adjustment head, and a drive member engaging surface. An actuator on the adjustment head moves the collet keys to engage the tie rod after the tie rod is received in the adjustment head. A method is also provided for engaging moveable collet keys on an adjustment head to engage the tie rod for rotation of the tie rod to adjust the toe set of a vehicle wheel. The device and method are useful with a variety of tie rod assemblies on various vehicles having different sized tie rod assemblies.

Abstract: This invention is about a device used for installing a fixing nut on the targeted objects-multiple fixing screw axes protruded from the hub or for separating them from the targeted object or the fixing screw axis in order to fix vehicle's tire wheel to the hub when installing or separating a fixing nut from targeted objects. Based on the idle operation of the operating gear, not based on the visual examination, the invention immediately recognizes the complete installation of a fixing nut. Likewise, this invention is to provide a wrench that maximizes user convenience.

Abstract: A joint tool includes a first wrench assembly configured to be placed in gripping contact with a rod, a second wrench assembly including jaws configured to grip and rotate a rod when the second wrench assembly is rotated in a first direction and to rotate relative to the rod when moved in a second direction, the second direction being opposite the first direction, and a drive assembly mounted to the first wrench assembly and coupled to the second wrench assembly, the drive assembly being configured to rotate the rod in the first direction and the second direction.

Abstract: This invention is about a device used for installing a fixing nut on the targeted objects-multiple fixing screw axes protruded from the hub or for separating them from the targeted object or the fixing screw axis in order to fix vehicle's tire wheel to the hub when installing or separating a fixing nut from targeted objects. Based on the idle operation of the operating gear, not based on the visual examination, the invention immediately recognizes the complete installation of a fixing nut. Likewise, this invention is to provide a wrench that maximizes user convenience.

Abstract: An open-ended spin tool comprising a first z-shaped structure, a second z-shaped structure, the second z-shaped structure being pivotably associated with the first z-shaped structure, a first gripping portion cavity, a first actuatable roller and a second actuatable roller, a rubber belt disposed parametrically around the first actuatable roller and the second actuatable roller, wherein the rubber belt is deformable to at least partially conform to a rotatable element, a motor to actuate rotation of the first actuatable roller and the second actuatable roller, at least one trigger roller, and an electric association between the at least one trigger roller and the motor, wherein depression of the at least one trigger roller triggers the motor to actuate rotation of the first actuatable roller and the second actuatable roller.

Abstract: A power tool has a housing having a drive portion for turning a fastener to tighten or loosen the fastener, the drive portion having two opposite sides spaced from one another in one direction and two connecting elements spaced from one another in another direction which is transverse to the one direction, the connecting elements including a first connecting element to connect with a fastener to be turned and a second connecting element to connect with an adjacent fastener so as to stop the power tool from turning around the fastener to be turned. The connecting elements being movable in the one directions to a first position wherein both elements are on one side of the drive portion and to a second position wherein both elements are on the opposite side of the drive portion and being fixedly secured in the two positions.

Abstract: A rigging tool for use with a turnbarrel for joining ends of cables together in which the rigging tool has a first gripping member with a receptacle suitable for receiving a terminal end of a cable therein, a second gripping member having a receptacle suitable for receiving a terminal end of another cable therein, and a translating rod assembly connected to the first and second gripping members for allowing the gripping members to translate with respect to each other when the turnbarrel is rotated. The translating rod has a tubular body with a first rod fixedly adjustably received in one end of the tubular body and a second rod resiliently mounted in the second end of the tubular body.

Abstract: A multiple lug nut removal tool includes an air gun that includes a cylindrical housing having a front end. A cover is mounted over the front end. A drive axle is mounted within the housing. A primary gear is attached to the drive axle. A plurality of secondary axles extends through the cover. Each of the secondary axles has a first end positioned within the housing and a second end extending outwardly away from the cover. Each of a plurality of secondary gears is attached to one of the first ends. The secondary gears are each in communication with the primary gear. Each of a plurality of couplers is attached to one of the secondary axles. Each of a plurality of sockets may be attached to one of the secondary axles by the couplers so that the sockets are rotated when the primary gear is rotated.

Abstract: A torque reaction control jig that transfers reaction torque from a drive member to a wheel upon tightening of a spindle nut onto a vehicle axle. The jig includes a jig body, an alignment member, and a barrier member. The jig body is secured to the drive member in a non-rotatable fashion. The alignment member includes a pair of stud nests that are each adapted to slidingly receive a wheel stud. The barrier member is secured to the jig body in a location such that the barrier member will engage the wheel stud should the jig be misaligned with the wheel. Engagement between the barrier member and the wheel prevents further tightening of the spindle nut onto the axle until the jig is properly aligned with the wheel.

Abstract: A fastener installation tool is provided that is used to install a threaded nut onto a threaded fastener of the type having a non-circular recess in an end of the fastener that matingly engages with a male member that has a complementary shaped non-circular tip end to the non-circular recess. The fastener installation tool generally has a head, a gear, a socket, a key, a key holder and a spring. The key has a shank with a non-circular external surface that matingly engages with a non-circular aperture in the key holder. The mating engagement between the key and the key holder provides the key with resistance to rotation and permits the use of a lower gauge spring that facilitates replacement of the key from the fastener installation tool. The key, key holder and spring are also available as a kit for retrofitting a fastener installation tool.

Abstract: A relatively compact portable tong assembly utilizing adaptable jaws for gripping the threaded box and pin ends of adjacent pipe joints without the use of an external support and thus applying final make-up torque or applying initial breakout torque to threaded pipe joints using only a spanner, socket and ratchet or other such hand tools for quickly applying torque to at least one of the tong jaws. An integral means is also provided for accurately measuring the amount of torque being applied to the joints.

Abstract: A fluid-operated power tool has a drive including a fluid-operator cylinder-piston unit, a first housing accommodating the drive, a lever-drive mechanism connected with the drive and powered by the latter and also engageable with a fastener for bolting applications, a second housing accommodating the lever-drive mechanism, the housings being interconnected so as to turn a fastener when the lever-drive mechanism is connected to the fastener and powered by the drive, and a connection for releasably connecting the housings with one another so that the housings are connectable with one another and disconnectable from one another, the connection including a female portion provided in one of the housings and a male portion provided in the other of the housings and engageable with the female portion for operatably connecting the first housing and the second housing with one another without subsequently requiring additional pins, screws and other means to provide a connection between the housings.

Abstract: The invention relates to a multiple screw driving machine comprising a plurality of individual screwdrivers which are arranged on a body or in a housing (8) and which each comprise a spindle or shaft (7) which is rotatably mounted in the housing and which at an outer front end carries a screw driving tool (10) for engagement with a screw means. Each of the screwdrivers are separately drivable by a common motor (1) via a driving wheel transmission comprising a primary driving wheel (5) for each screwdriver. The primary driving wheel (5) is rotatably but non-displaceably mounted on the shaft (7) of the respective screwdrivers whereas a driver element (14) is non-rotatably but displaceably mounted on the shaft (7) and is displaceable with the aid of an operating means (16) towards and away from the primary driving wheel (5). The primary driving wheel (5) and the driver element (14) each have mating and mutually facing engagement means (19, 20).

Abstract: A multiple spindle tool has a single input drive motor and a plurality of output spindles. A gear arrangement including a central gear and three planet gears and three slip clutches are positioned between the drive motor and the output spindles. Each of the slip clutches drives a respective output spindle until a predetermined torque, set at respective clutches, is reached. Each of the slip clutches receives input rotation and torque from respective ones of the planet gears.

Abstract: A method of tightening and loosening an object to a rotary base torsion-free includes providing a single power tool having a tool housing portion and a driving portion which are coaxial with one another and provide equal but opposite forces, connecting a bolt with the rotary base, connecting a first part which includes a sleeve/washer assembly to one of the portions to be turned by the one portion, which sleeve/washer assembly includes a sleeve with a thread cooperating with a thread of the bolt and a washer abutting against the object, connecting a second part to the other of the portions to be turned by the other portion, which second part includes a nut having a thread cooperating with another thread of the first part, turning the first part by the one portion so that the first part, the bolt and the rotary base turn together while the second part remains free of rotation to urge the bolt to move in a desired axial direction to tighten or loosen the object to the rotary base, and turning the second part by

Abstract: A power tong system and method is disclosed for making and breaking joints between wellbore. The system comprises a frame to which a spinner is mounted for spinning the wellbore tubulars. A first member is pivotally mounted with respect to the frame such that the first member is rotatable with respect to the frame. A piston/cylinder assembly is pivotally mounted with respect to the frame and with respect to the first member whereby the first member is rotatable with respect to the frame in response to movement of the piston with respect to the cylinder. A control arm is preferably pivotally mounted to the first member and the piston/cylinder assembly. The control arm is securable, such as with a moveable pin or a latch, to the first member in at least two positions for controlling whether the first member is operable for making or for breaking the joints.

Abstract: The present invention relates to a socket wrench of simple structure, easy to manufacture, having minimum size and weight on the whole so that one can tighten up or loosen easily, with small strength, a bolt for use in fixing the tire wheel of compact cars such as a jeep and a passenger car to a hub.

Abstract: A device for simultaneously removing all of the lug nuts on a vehicle's wheel, thereby reducing the amount of time required to remove the wheel from the vehicle. The device has multiple sockets that fit over each lug nut. Each socket is turned by a lug gear and all of the lug gears are turned by a single central gear. The central gear has a hole or slot in its center for receiving a hand tool or power tool that provides the rotational force. The lug gears are positioned around the circumference of the central gear and the teeth of the lug gears engage with teeth of the central gear. An outer ring gear surrounds all of the lug gears providing an inward pressure that maintains the connection between the teeth of the lug gears and the central gear. When the central gear is rotated each of the lug gears rotate in an opposite direction thereby allowing each lug nut to be turned simultaneously.

Abstract: The present invention relates to a socket wrench of simple structure, easy to manufacture, having minimum size and weight on the whole so that one can tighten up or loosen easily, with small strength, a bolt for use in fixing the tire wheel of compact cars such as a jeep and a passenger car to a hub.

Abstract: A tool for adjusting extremely tight lug nuts, such as often found on tractor-trailer trucks, consists of a socket wrench pulled by a screw and anchored against another lug nut coaxial to the one being adjusted. A hand crank turns the screw, which in turn pulls the handle of the socket wrench toward the anchor yielding very high torque multiplication. The tool is elongated and shaped to permit its use in the tight space found in the annular recess surrounding the hubs of most truck wheels.