Abstract: A system and method for determining a fluid property for a fluid flowing in a pipe may include sensing baseline vibrations when test fluids with known values for a fluid property (e.g., fluid density or fluid viscosity) flow through the pipe, or computer modeling the baseline vibrations. The baseline vibrations are analyzed via cross-correlation and/or deconvolution to separate the fluid filled pipe's baseline combined structural response from excitation and base coupling effects. During field or other operations, sensors may take vibrational readings along the pipe when an operational fluid (e.g., drilling fluid) flows through the pipe. The operational vibrations may be analyzed via cross-correlation and/or deconvolution to separate the operational combined structural response of the fluid filled pipe from excitation and base coupling effects. The baseline and operational structural responses may compared.

Abstract: An inertial sensor includes an oscillator that is supported by an elastic supporting member such that the oscillator is floating relative to a base and the oscillator is displaceable along a single axis, and a displacement detection unit detecting a displacement of the oscillator. The oscillation of the oscillator is a simple harmonic motion along a Z axis. An X axis, a Y axis, and the Z axis, serving as reference axes of an oscillation coordinate system for the oscillator, are shifted to provide x, y, and z axes, serving as new reference axes. Position coordinates of the oscillator of the x, y, and z axes are determined in at least two points during one period of the oscillator. A difference vector (?x, ?y, ?z) is calculated on the basis of the determined position coordinates. An angular velocity or an acceleration is obtained using the difference vector.

Abstract: An acceleration sensor for measuring an acceleration comprises a housing including a measuring-plate, which has a first surface. The measuring plate has a second surface in parallel with and opposite to the first surface. A post is bonded via a post-bonding-face to the first surface. A temperature-compensating-element for compensating a temperature-effect caused by a temperature acting on the measuring-plate, is bonded via an element-bonding-face to the second surface of the measuring-plate. In addition, a sensor as described above is in a measuring device.

Abstract: The object of the present invention is to provide a the three-dimensional ultrasonic imaging apparatus for improving accuracy of internal inspection of an object to be inspected and enabling an automatic determination by means of ultrasonic waves.

Abstract: A method and apparatus for the inspection of rotary machine components is provided. A positioning fixture is clamped to the component to be inspected, and supports a transceiver that is used during the inspection. The positioning fixture can be navigated through and between rotary machine components to the desired location to be inspected. In one example, an ultrasonic transceiver can be used to perform the inspection. The apparatus can be used to perform in-situ inspections.

Abstract: A pressure monitoring system provides a pressure sensor and a body that has a first coefficient of thermal expansion and includes at least one opening for accessing a process fluid. At least one isolation diaphragm is coupled to the body and positioned in the at least one opening. The at least one isolation diaphragm has a first surface in communication with the process fluid. At least one passageway is located in the body and configured to contain a fill fluid in communication with a second surface of the first isolation diaphragm. The at least one passageway is positioned between the first isolation diaphragm and the pressure sensor. At least one expansion chamber is coupled to the first passageway and includes an insert having a second coefficient of thermal expansion. The first coefficient of thermal expansion of the body is greater than the second coefficient of thermal expansion of the insert.

Abstract: A pressure gauge is composed of two separate components adapted to be assembled and disassembled by hand. The one component is a pressure-motion conversion element (3, 6) for receiving a pressure and effecting a movement of a movable portion (3c, 6c) thereof in response thereto, and the other component is a force measuring element (5) for measuring a force caused due to the movement of the movable portion (3c, 6c). The pressure-motion conversion element (3, 69) is constructed as a disposable component, whereas the force measuring element (5) is intended for re-use.

Abstract: There is provided a pressure sensor having: a sensor chip (30) which detects a pressure; a base plate (20 (21, 22)) which supports the sensor chip (30); and a support diaphragm (50) which is bonded to the base plate (20 (21, 22)) and supports the base plate (20 (21, 22)), wherein the pressure sensor (1) has a structure in which the support diaphragm (50) is joined to a package (10), and the sensor chip (30) and the base plate (20 (21, 22)) are supported in the package through the support diaphragm (50) alone, thereby constantly and accurately detecting a pressure without being affected by a heat stress caused due to heat from the outside.

Abstract: This invention uses a flexible gauge to digitize an analogue signal from a mechanical gauge. In particular, this invention uses a flexible gauge to digitize an analogue signal from a mechanical pressure gauge. More particularly, this invention uses a flexible gauge to digitize an a analogue signal from a mechanical pressure gauge that uses a Bourdon tube.

Abstract: A strain sensing apparatus including a deformable substrate is presented. The deformable substrate is configured to detect a strain of the body that can be coupled to the deformable substrate. Sometimes, the deformable substrate is a flexible substrate having an upper surface and an opposite lower surface. The lower can be coupled to the body. There are sensing elements fabricated within the flexible substrate and proximate to the upper surface to detect properties of the body. The strain sensing apparatus is able to detect different strain modes, such as whether the strain is the result of bending of a body or a uniaxial elongation. Furthermore, the apparatus is small and less fragile than most conventional sensors, making it easy to use.

Abstract: A strain detector includes a bridge circuit having at least two strain resistance elements, a substrate, a first fixed member, and a second fixed member. The substrate has a circuit portion electrically connected to the strain resistance elements. The strain resistance elements are arranged on the substrate. The first fixed member is fixed to a center of an area, where an outer periphery of the area is set at a position at which the strain resistance elements are arranged. The second fixed member is fixed outside the position, where the strain resistance elements are arranged at the substrate. A center of an axis of the first fixed member, a center of an axis of the second fixed member, and the center of the area are positioned on a straight line, and the first fixed member and the second fixed member are arranged on two mutually opposed surfaces of the substrate.

Abstract: An industrial pressure transmitter, for use in industrial process control systems, comprises a differential pressure sensor and an integrated process connector connected to the differential pressure sensor. A process fluid flow duct extends through the process connector and receives an industrial process fluid. A primary element is positioned in the process fluid flow duct for producing a pressure differential in the process fluid across the primary element. The differential pressure sensor is connected to the process fluid flow duct to sense the pressure differential across the primary element.

Abstract: Sensors for outputting signals indicative of a rate of change of torque experienced by a magnetized member in response to a change in torque experienced by the member are described. Such sensors include at least one sense element capable of detecting a change in a magnetic parameter of a magnetized region of the member positioned proximate to the sense element in response to a change in torque applied to the member. Devices for detecting and/or measuring rates of changes in or of torque that employ one or more of these sensors are also described, as are various applications for such devices.

Abstract: A torque-detecting sleeve member is a cylindrical member that has first and second cylindrical torque-acting parts, a torsion signal generator and a torsion converter. Torque acts on the first and second cylindrical torque-acting parts in at least two points. The torsion signal generator is disposed axially between the first and second cylindrical torque-acting parts to at least partially form an external peripheral surface between the first and second cylindrical torque-acting parts. The torsion converter is operatively disposed between the torsion signal generator and at least one of the first and second cylindrical torque-acting parts for converting torsion transmitted from the at least one of the first and second cylindrical torque-acting parts to the torsion signal generator.

Abstract: A magnetostrictive torque sensor for detecting a torque comprises an operating shaft, a first hollow shaft, a second hollow shaft, a first magnetostrictive film, and a second magnetostrictive film. Torque acts on the operating shaft from the outside. The first and second hollow shafts are fitted and fixed separately on the operating shaft. The first magnetostrictive film is formed on an external peripheral surface of the first hollow shaft while the second magnetostrictive film is formed on an external peripheral surface of the second hollow shaft.

Abstract: The present invention provides a stainless steel most suitable as a metal base material for the weight sensor substrate of an automobile airbag, a method for producing said stainless steel and said weight sensor; and the stainless steel sheet comprises a high aluminiferous ferritic stainless steel containing Al of 2.5 to 8 mass % and comprising, in mass, C: 0.025% or less, N: 0.025% or less, the sum of C and N being 0.030% or less, and Nb: 0.05 to 0.5%, with the balance consisting of Fe and unavoidable impurities. Further, said stainless steel sheet may further contain, in mass, one or more of V: 0.05 to 0.4%, Ti: 0.02 to 0.2%, and Zr: 0.02 to 0.2%. The present invention makes it possible to control the difference in the average linear expansion coefficient between said stainless steel sheet and crystallized glass for a weight sensor to less than 10% in the temperature range from 20° C. to 900° C. and thus to improve the adhesiveness of said stainless steel sheet with said crystallized glass.

Abstract: A cap having a plurality of rib structures situated on an inner wall of the cap to facilitate the formation of air passageways as the cap is penetrated by a pipette tip. The air passageways aid in venting air from a fluid-holding vessel closed with the cap.

Abstract: The present invention discloses a sampling head and a sampling device for intact vehicle paint chips for forensic applications, and the sampling head includes: a body being a non-metal cylindrical body and having a circular groove at the external periphery of the body, and an installing groove disposed axially at a front end of the body; at least one O-ring sheathed onto the circular groove and protruded slightly from the surface of the body; a metal head, embedded and fixed axially into the installing groove, and having a small portion protruded from the front distal surface of the body, and the metal head front distal surface has a groove; and a plastic layer, installed in a groove of the metal head, and an external lateral surface of the plastic layer is protruded from the front distal surface of the metal head to form a gluing surface for collecting a sample.

Abstract: A slide mechanism of a linear transmission apparatus includes an actuating mechanism, a guide screw and a slide mechanism. The slide mechanism includes a fixing base, a primary guide rail, left and right secondary guide rails and a slide element. The fixing base has a through hole for passing the guide screw. The primary guide rail and each secondary guide rail are engaged to the guide screw and connected to the fixing base. The primary guide rail has a top panel and two side panels. Each secondary guide rail has an extended panel protruded from a side proximate to the primary guide rail. The top of each extended panel is not lower than the bottom of the side panel, and the slide element is sheathed onto the exterior of the guide rail, and a nut secured to the guide screw is formed in each guide rail.

Abstract: A multiple speed power transmission comprises: an input; an output; first and second input shafts releasably coupled to the input by first and second friction clutches, respectively; a countershaft disposed parallel to the first and second input shafts; an output pinion fixed to the countershaft; an output ring gear fixed to the output and meshing with the output pinion; an intermediate shaft disposed coaxially with the countershaft; a first input pinion fixed to the first input shaft and meshing with a first gear fixed to the intermediate shaft; a second input pinion fixed to the second input shaft; a second gear disposed coaxially with the intermediate shaft; an idler gear meshing with the second input pinion and the second gear; a first coupler for releasably coupling the first countershaft to the intermediate shaft; and a second coupler for releasably coupling the intermediate shaft to the second gear.

Abstract: In a load shiftable group transmission with a high number of gears, particularly suitable for utility vehicles, the transmission includes a dual clutch a split unit, a direct gear, a main group and a hollow shaft on a countershaft in an arrangement, wherein the various gear stages can be established by a change of the input constants within the split unit without a change in the transmission stage in the main transmission without an interruption in tractive force during shifting between two adjacent gears within the main group.

Abstract: The invention concerns an automated manual transmission of a motor vehicle, having an input shaft, an output shaft arranged co-axially with reference to the input shaft, and several gears, which can be selectively shifted via allocated shifting clutches, in which the input shaft is connected to a driving motor via a motor clutch, which can be engaged and disengaged, and an additional controllable friction clutch is provided as power shift clutch if required for bridging at least one of the shifting clutches.

Abstract: To provide a transmission synchronizer that effectively lower the peak value of the operation load during synchronisation. A transmission synchronizer equipped with a coupling sleeve 1, synchro hub 5, balk ring 4, and clutch gear 3, comprising: a synchronizing support force generating mechanism that during a shift when relative rotation is generated between said synchro hub 5 and said balk ring 4 by a minute synchronizing torque generated between balk ring cone surface 4a and clutch gear cone surface 3a, converts a circumferential force induced by said relative rotation to an axially applied synchronizing support force, with which said balk ring 4 is pressed against said clutch gear 3; and a relative rotation regulating structure that is located between said balk ring 4 and said synchro hub 5, and when in neutral, regulates the amount of relative rotation between said balk ring 4 and said synchro hub 5 so that said synchronizing support force is not generated.

Abstract: A roller screw is provided having a structure suitable for circulating rollers. The roller screw has a screw shaft 5 with a spiral roller rolling groove 5a formed on an outer peripheral surface thereof; a nut 6 with a spiral roller rolling groove 6a opposed to the roller rolling groove of the screw shaft and formed on an inner peripheral surface thereof; and a plurality of rollers 7 arranged in a load roller rolling path 9 between the roller rolling groove 5a of the screw shaft 5 and the roller rolling groove 6a of the nut 6. Inside the nut 6 is provided a roller return path 11 extending linearly in parallel with an axis line of the nut 6. To opposite end faces in an axis line direction of the nut 6 are attached direction change path forming members 13 in which direction change paths 10 to connect the load roller rolling path 9 and the roller return path 11 are formed. The roller return path 11 is twisted to rotate an attitude of each of the rollers 7 while the rollers 7 move in the roller return path 11.

Abstract: The invention concerns a single direction coupling device, including a first transmission member (10) fitted with a first saw-like contrate toothing (13), mobile in rotation about an axis XX and axially positioned by an elastic member, and a second transmission member (14) fitted with a second saw-like toothing (17), mobile in rotation about an axis YY, meshed with the first transmission member (10), characterized in that the XX axis is perpendicular to the YY axis.

Abstract: A wave reduction gear (5) is disposed inside a device case (2) of a rotating table device (1). Lubrication oil is sprayed from an oil supply channel (22), which is formed in the device case (2), toward an oil supply hole (22) formed in a cup-shaped flexible externally toothed gear (12). A wave bearing (19) disposed in the interior is lubricated via the oil supply hole (21). Lubricating oil that has entered into the flexible externally toothed gear (12) is forcibly suctioned to the exterior via an oil recovery channel (23) that is formed in the device case (2). Accordingly, it will be possible to prevent oil from being suctioned due to the negative pressure state in the interior of the flexible externally toothed gear accompanying the high-speed rotation, and regions of the wave bearing (19) can be reliably lubricated.

Abstract: A system for controlling the movement of a steerable multi-linked device may include a steerable multi-linked device a feeder mechanism releaseably connected to the steerable multi-linked device and a controller device. The steerable multi-linked device may include a first link, a plurality of intermediate links, and a second link movably coupled to a second one of the intermediate links. A first one of the intermediate links may be movably coupled to the first link. The controller device may be configured to control movement of the multi-linked device via the feeder mechanism.

Abstract: The invention relates to a transmission shift device (30) for a transmission (6) having one range group transmission (14) and one shift lever (16) with a superposed H-shaped shift pattern in which a shift and selector shaft (32) is operatively connected by one end (34) with the shift lever (16) and by the other end with a transmission-side shift means, one blocking device actuatable with pressure means which prevents or at least makes detectable for the driver of a motor vehicle the inadvertent activation of transmission gears in a range group change so that the shift and selector shaft (32) is autonomously displaceable from a shift gate (G5-G6) to the shift gate (G3-G4) of the next two lower gears (G3, G4).

Abstract: A manipulator has a working unit including an end effector and a posture axis for changing the orientation of the manipulator, a compound mechanism provided on the working unit, and a controller for actuating a gripper axis, a yaw axis, and a roll axis by respectively controlling movement positions of three motors. The controller includes a torque generation detector for detecting a timing at which torque is generated on the gripper axis. When the controller detects the timing at which a torque ?g? is generated on the gripper axis under operation of a given motor, the movement positions of the plural motors are shifted and set, corresponding to the directions at which interference torques are generated with respect to the yaw axis and the roll axis, and to predetermined positions of the same directions.

Abstract: A steering column assembly for a vehicle includes a support bracket and a column jacket coupled to the support bracket. A compression bracket is mounted to the column jacket. A clamping device is disposed on the support bracket and has a rake bolt extending through the support bracket and the compression bracket for applying a frictional force on the support bracket to prevent telescoping and tilting movement of the column jacket and the compression bracket relative to the support bracket. An actuation mechanism is coupled to the support bracket. The actuation mechanism rotates the rake bolt in a first direction to prevent telescoping and tilting movement of the column jacket. Likewise, the actuation mechanism rotates the rake bolt in a second direction to permit telescoping movement of the column jacket and the compression bracket relative to the actuation mechanism and the support bracket and tilting movement.

Abstract: A bicycle transmission mechanism including: a fixed housing having an annular cavity; a ratchet member attached to a wall of the annular cavity of the fixed housing; a locking member slidably disposed in the annular cavity of the fixed housing, the locking member being formed with a cord hole, a cord head of a steel cord being fitted in the cord hole, a cord body of the steel cord extending from the cord head out of the cord hole, the cord head and the cord body containing an angle, whereby the cord head provides a resilient force which makes a first end of the locking member always tend to deflect toward the ratchet member and engage therewith so as to one-way detent the locking member; and a rotary member having a projecting linking section for rotationally driving the locking member to wind/unwind the steel cord.

Abstract: An apparatus for applying a reaction force to a pedal member. The apparatus includes: a reaction-force applying device for applying the reaction force to the pedal member and changing the reaction force; and a reaction-force controlling device for controlling the reaction-force applying device such that the reaction force is changed on the basis of a depressing stroke of the pedal member. The reaction-force applying device includes a spring member connected with the pedal member, and a reaction-force changing mechanism for changing the reaction force, by moving an end of the spring member toward and away from the pedal member. The reaction-force changing mechanism includes a feed screw mechanism for moving the end of the spring member toward and away from the pedal member. The feed screw mechanism includes an externally threaded shaft rotatable and held in engagement with an internally threaded hole formed in a spring seat that is held in engagement with the end of the spring member.

Abstract: The invention relates to a pedal simulation device for simulating the reaction behaviour of a pedal, in particular of a brake pedal of a vehicle brake system, comprising a cylinder, a piston disposed displaceably inside the cylinder and coupled to the pedal and delimiting a working chamber inside the cylinder, a resetting element which, upon an actuation of the pedal, exerts a resetting force on the pedal, and a modelling device, which is fluidically connected to the working chamber, for influencing the reaction behaviour of the pedal. In the invention, for achieving the reaction behaviour it is provided that, upon an actuation of the pedal, by means of the modelling device a vacuum, which is arising or has arisen in the working chamber, is built up.

Abstract: The invention relates to an assembly structure of treading crank and spindle tube of the bike; wherein circularly set several convex straight ribs, with even intervals, on the inner surface of the treading crank, and there is a reserved circular space between each convex straight rib and the bottom surface of the central hole. Several circularly arranged sunken-shaped cavernous-straight troughs are set on the section of the end surface; when combining treading crank and spindle tube, make use of a suitable size of cone-expanding body and set the big bottom of said cone-expanding body at the bottom surface; then push said several cavernous-straight troughs set on the end surface of the spindle tube toward the direction of the section the convex straight ribs; said several cavernous-straight troughs will move outwardly and into the circular space between convex straight rib and the bottom surface and then to be locked.

Abstract: An antivibratory system is provided by means of a servo motor driven shaker affixed to the head or bed frame of a tufting machine and programmed for rotation of a balancing weight to minimize vibration caused by operation of tufting machine at a particular speeds and needle stroke lengths.

Abstract: A rigid arm pendulum is combined with a helical device attached to the pendulum horizontal axle to provide a double reciprocating action. While the pendulum reciprocates in rotary fashion about the axle, describing successive arcs of less than 360 degrees, the axle simultaneously produces a reciprocating action about its longitudinal centerline. A pumping action is thereby developed in line with the longitudinal centerline of the axle. This pumping (linear reciprocating) action can be utilized for a variety of requirements, including a hydraulic pump and a system to drive an electric generator.

Abstract: One embodiment of the invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Al, Si, Mg, Ca, Y, Fe, Mn, Group IV, Group V, Group VI elements, and mixtures thereof, Q is oxide, R is a base metal selected from the group consisting of Fe, Ni Co, Mn and mixtures thereof, S consists essentially of at least one element selected from Cr, Al and Si and at least one reactive wetting element selected from the group consisting of Ti, Zr, Hf, Ta, Sc, Y, La, and Ce.

Abstract: Disclosed is a method for preparing metal nanoparticles, the method comprising the steps of: providing a solution of metal salt and a solution of a strong reducing agent with a standard reduction potential of ?0.23V or lower; and mixing the solutions by using a micro mixer without supplying additional heat energy from the exterior, while carrying out reduction of the metal. Metal nanoparticles obtained by the above method, and a micro mixer for preparing the metal nanoparticles are also disclosed. The method for preparing metal nanoparticles via the reduction of metal ions in a solution uses a strong reducing agent and a micro mixer. Therefore, it is possible to obtain metal nanoparticles having a particle size of 20 nm or more and a uniform shape and dimension without supplying additional heat energy from the exterior. Additionally, the method is amenable to a continuous process, and thus ensures cost-efficiency and stable product quality required for mass production.

Abstract: A thermal spray powder including cermet particles, each of which contains metal containing at least one selected from the group consisting of cobalt, chrome, and nickel, and tungsten carbide. The ratio of the summed weight of cermet particles having a particle size of 25 ?m or more in the thermal spray powder with respect to the summed weight of the entire cermet particles in the thermal spray powder is 0.5 to 15%. A thermal spray coating formed from the thermal spray powder is suitable for the formation of a tungsten carbide-based cermet thermal spray coating for use in rolls such as corrugated rolls.

Abstract: A method of synthesizing nanoparticles includes: combining at least one stabilizing agent, at least one precursor and an ionic liquid to form a reaction mixture; heating the reaction mixture to a predetermined temperature to form the nanoparticles and cause the nanoparticles to self-separate from the reaction mixture; and collecting the nanoparticles from the reaction mixture. Ionic liquid from which the nanoparticles are separated may be reused.

Abstract: A man made method, utilizing particles bombardment technique, is used to produce Gold and Platinum. The particles bombardment technique uses particle accelerator to accelerate Lithium particles to high speed. These high speed Lithium particles contain high energy. These high energy Lithium particles are used to bombard Osmium element. Then elements Lithium and Osmium undergo cold fusion process that they are combined to produce element Gold. By the same method, Helium particles are accelerated by particle accelerator to high speed. These high speed Helium particles contain high energy. These high energy Helium particles are used to bombard Osmium element. Then elements Helium and Osmium undergo cold fusion process that they are combined to produce element Platinum.

Abstract: A degasser (10) for molten metal with a microporous plate (11). The microporous plate has at least one internal passageway (13) and an interface tube (12) attached to the microporous plate in flow communication with the internal passageway.

Abstract: Smelting apparatus comprises a vessel (11) and a solids injection lance (27a) extending through an opening in the wall of vessel barrel (16) into the interior space of the vessel. Lance (27a) includes a central core tube (31) through which to pass solid particulate material into the vessel and an annular cooling jacket (32) surrounding the central core tube (31) throughout a substantial part of its length. Lance (27a) has a mounting structure (61) comprising a tubular part (60) extended about cooling jacket (32) and about twice the diameter of the cooling jacket. Tubular part (60) fits within a tubular lance mounting bracket (62) welded to the shell (16a) of vessel barrel (16) to extend outwardly from the vessel. The lance is held within mounting bracket (62) by clamping bolts (66) acting between flanges (63,65) on tubular part (60) and tubular bracket (62), such that the forward end of part (60) is flush with the inner surface of the refractory lining (16b) of vessel barrel (16).

Abstract: A tool (10) for use with a container (12) having a dispensing end (14) includes a guide (16). The guide (16) has an generally frustoconical portion (18) and a neck portion (19). The neck portion (19) has a distal end portion (32) and a stopper (34). The distal end portion (32) optionally seats against the dispensing end (14) of the container (12) to guide food from the generally frustoconical portion (18) into a dispensing opening (24) of the dispensing end (14) of the container (12). The tool (10) optionally includes a recess (28) in the generally frustoconical portion (18). Furthermore, the tool (10) may include a cap-removing projection (20). In addition, the tool (10) may have an accessory (60) that is either pivotably or removably attached to the guide (16).

Abstract: A device for opening and re-sealing a flip-tab beverage can lid includes a pull handle connected with a base portion. The base portion is tapered and further comprises an upper and lower base portion. The pull handle facilitates the opening of the lid and the base portion is configured to cover and optionally seal the lid opening. A sleeve portion is contained within the base portion and is configured to receive the flip-tab of a beverage can lid. The beverage can lid is opened by lifting the pull handle away from lid surface to cause a tab lip of the flip-tab to rotate towards the lid surface and act as a lever to punch out a swinging seal in the lid surface that is defined by a scored area. The pull handle further facilitates rotation of the base portion about the lid surface and into a covering position that covers the lid opening and keeps the can contents free from outside contaminants.

Abstract: A power tong positioning apparatus having a base section and a backup elevating section engaging the base section. A first lift assembly is positioned between the base section and the backup elevating section while a tong elevating section engages the backup elevating section. A second lift assembly is then positioned between the backup elevating section and the tong elevating section.

Abstract: A wrench device includes an input gear configured to receive an input member such as a ratchet handle. The wrench device includes a socket housing defining a receiving area and an open side. A plurality of intermediary gears operatively couple the input gear to the socket housing. The wrench device may include a set of inserts, each being respectively receivable in the socket housing receiving area, defining a receiving area, and having an open side adjacent the socket housing open side when received in the socket housing receiving area. Each insert includes a cavity complementary to a spring biased lock coupled to an interior wall of the socket housing such that the insert is held in the socket housing receiving area but may be removed therefrom when sufficient is applied to the insert.

Abstract: A ratcheting tool such as a reversible dual-pawl ratchet wrench is disclosed that minimizes wasted motion during ratchet slip or counter-rotation. The ratchet wrench includes a bias assembly that biases the pawls apart to bias a first, selected pawl for a selected drive direction towards engagement with a ratchet gear, and that the biases the selected pawl into a concentric alignment with the ratchet gear. In this manner, non-ratcheting initial rotation of the pawl due to counter-rotation prior to the pawl camming out of engagement with the ratchet gear is eliminated, thus eliminating wasted motion and maximizing the available angular sweep for the wrench.

Abstract: An anti-slip socket capable of stably applying force in clockwise and counterclockwise directions comprises an engaging hole having an axial rectangular engaging portion on each inner wall' central portion of at least three sides thereof, so that the respective engaging portions can be synchronously engaged with the peripheral surface of the head portion of a work piece in a surface-to-surface contact manner. Therefore, besides being applied to normally drive a work piece, the anti-slip socket is still applicable when the angles of the head portion of the work piece are deteriorated and can easily drive the head portion of the work piece no matter in the clockwise direction or the counterclockwise direction, absolutely preventing the slippage with respect to the head portion of the work piece.

Abstract: A monkey wrench includes a handle, a head, stationary jaw, a movable jaw and a jaw-moving element. The head is formed at an end of the handle and made with a side, a groove in the side and an opening in communication with the groove. The stationary jaw is formed on the head and made with a first nut-contacting face, a second nut-contacting face next to the first nut-contacting face, a bulge on the first nut-contacting face and a recess next to the bulge. The movable jaw is movably disposed in the groove and formed with a nut-contacting face and a bulge on the nut-contacting face thereof. The jaw-moving element is disposed in the opening and engaged with the movable jaw so that the jaw-moving element is operable to move the movable jaw relative to the stationary jaw.