Abstract: Strain gauges A, B for a bending portion cross each other and are stuck to a strain gauge sticking portion 7 for a bending portion located in a portion applying centrifugal force or centripetal force of a fluid thereto in a bending portion 4 in a bending circular tube 1 formed by bending a tube circulating the fluid therein. Further, strain gauges C, D for compensating static pressure and temperature cross each other and are stuck to a strain gauge sticking portion 11 for a straight tube portion located in a straight tube portion 8 connected to the bending portion 4 in the bending circular tube 1. Detecting signals of strain gauges A, B for a bending portion and strain gauges C, D for compensation are guided to an opposite position of a bridge circuit 12.

Abstract: A magnetostrictive mechanical quantity sensor for detecting torque or axial force is disclosed, which sensor comprises a hollow shaft and an operation shaft. The hollow shaft has a magnetostrictive film formed on its outer perimeter surface. The operation shaft is subject to torque or axial force acting from outside and is linked to and fit inside the hollow shaft.

Abstract: A method of sampling a multi-phase fluid stream is provided which comprises the steps of: sampling, with a sampling probe, a portion of the fluid stream; measuring the flow rate of said sampled portion; and measuring, independently of the sampling step, the total flow rate of the fluid stream, wherein the flow rate of the sampled portion is controlled according to the ratio of the flow rate of the sampled portion to the flow rate of the fluid stream, in order to obtain substantially isokinetic sampling of the fluid stream. The method may provide isokinetic sampling to an accuracy of 5% or less and preferably only samples a small portion of the fluid stream. The method has particular application for high rate condensate gas wells. A corresponding sampling system is provided which has particular application in the sampling of streams from well-heads.

Abstract: An object of the invention is to realize high-accuracy analysis of a flue gas in terms of a trace amount of ammonia so as to control the level of ammonia gas to be added to a flue gas NOx removal apparatus. Since the ammonia gas to be determined is a highly adsorbable, the gas component is considerably adsorbed on a surface of the flue gas sampling tube during sampling of flue gas. When a conventional sampling method including heating a gas sampling tube is employed, the amount of sampled gas is reduced through adsorption during gas sampling, failing to obtain concentration values at high accuracy. Thus, a high-accuracy gas sampling method replacing a conventional, heating-based method includes completely washing out, with an absorption liquid therefor serving as a washing liquid, a target ammonia gas deposited on the inner wall of a flue gas sampling tube (2), whereby the gas component is thoroughly collected. Through analysis of the thus-obtained washing liquid, high-accuracy analysis can be attained.

Abstract: Embodiments of the invention are directed to a system for sampling sterile liquids in a pharmaceutical environment. The system can include a nesting station, the nesting station including one or more divert valves, a manifold, disposed partially within the nesting station, the manifold comprising one or more tubes, an input valve, coupled to the manifold, the valve being designed and dimensioned to control the flow of liquid into the manifold, and one or more sampling pouches, each sampling pouch coupled to one of the tubes. Each of the divert valves can be used to selectively control the flow of liquid from the manifold, into the sampling pouches.

Abstract: The present invention provides a device for obtaining a sample of fluid from a process conduit. The device includes a tubular core that has a passageway extending therethrough. The tubular core has ends that are attachable to spaced-apart portions of a conduit. A tubular sleeve surrounds the tubular core such that the tubular core extends lengthwise through the tubular sleeve. The tubular sleeve has a boss formed thereon that has a bore extending therethrough. The bore fluidly communicates with the tubular core. A syringe is mountable to the boss and the syringe has a needle. The needle is dimensioned to extend through the bore to puncture the core and to project into the passageway inside the core.

Abstract: An apparatus (300) for obtaining a fluid sample in a subterranean well includes a housing (302) having a sample chamber (314) defined therein. The sample chamber (314) is selectively in fluid communication with the exterior of the housing (302) and is operable to receive the fluid sample therefrom. A debris trap piston (318) is slidably disposed within the housing (302). The debris trap piston (318) includes a debris chamber (326). Responsive to the fluid sample entering the sample chamber (314), the debris trap piston (318) receives a first portion of the fluid sample in the debris chamber (326) then displaces relative to the housing (302) to expand the sample chamber (314).

Abstract: The inventive sensor illuminates the powder layer (40) by means of sensing segments (30, 31, 32), said powder layer scattering the measuring beams. Flaws in the powder layer lead to increased reflection such that a reflected measuring beam is reflected into the segments (30, 31, 31). The reflected beams are guided to a control unit (21) by the fiber lines. Said control unit recognizes flaws according to fluctuations in the intensity of reflected beams and generates a corresponding control signal.

Abstract: A scale for calculating a remaining time that gas remains in a cylinder. An electronic scale calculates an actual tare weight of the gas in the cylinder using the total weight of the cylinder with the gas and the weight of the cylinder when empty. The remaining time that gas remains in the cylinder is calculated by the scale using the flow rate of the gas and the actual tare weight of gas in the cylinder. Further, the scale may calculate a percentage of the gas remaining in the cylinder using the actual tare weight of the gas in the cylinder and the maximum tare weight of the gas for the cylinder. By estimating the remaining time that gas remains in the cylinder in this manner, the scale is able to measure gas in pressurized cylinders over a wide range of capacities.

Abstract: A microelectromechanical system (MEMS) device with a mechanism layer having a first part and a second part, and at least one cover for sealing the mechanism layer. The inner surface of at least one of the covers is structured such that a protruding structure is present on the inner surface of the cover and wherein the protruding structure mechanically causes the first part to be deflected out of a plane associated with the second part.

Abstract: The invention relates to an actuator for actuating an aircraft member, said actuator essentially comprising a screw and at least two nuts including a primary nut and a secondary nut that are engaged on the screw, relative movement between the screw and the nuts generating said actuation, the secondary nut being disposed to take up the load on the screw in the event that the primary nut fails, the actuator further comprising a third nut, the secondary nut and the third nut having mutually overlapping portions and a breakable pin passing through said overlapping portions, the third nut being constrained to turn with the secondary nut by the pin so that, after the pin breaks, the third nut is free to turn relative to the secondary nut.

Abstract: The invention relates to a gearbox module (1) having a gearbox input (E) and at least one gearbox output (A); having a starting element (2) coupled to the gearbox input (E), comprising an input (5) and an output (6) that can be coupled at least indirectly to the gearbox output (A); having a gear-shifting device (3), comprising at least two inputs (7, 8) and one output (9), which can be connected to the gearbox output (A); a first input (7) of the gear-shifting device (3) is connected to the output (6) of the starting element (2) and a second input (8) is connected to the input (5) of the starting element (2); each input (7, 8) of the gear-shifting device (3) is selectively connected by means of a synchronously shiftable coupling (16), thereby producing a first power branch (10) and a second power branch (11), whereby the two synchronously shiftable couplings (16, 17) enable power to flow via the power branches (10, 11) respectively alone or else jointly in a closed state.

Abstract: An annular recess 73 is provided in a fitting hole 71 of a bracket 7 into which a cylinder tube 53 of a housing is fitted that accommodates a steering drive shaft capable of moving in right and left directions of a car body in response to a steering operation and that has the cylinder tube 53 made of metal, while a part of the cylinder tube 53 ranging from an inner periphery surface to an outer periphery surface is bent into said recess 73, so that an escape preventing protrusion 8 is provided, thereby increasing an escape preventing strength of the bracket 7. This increases the escape preventing strength of the bracket joined to the cylinder tube, without generation of thermal distortion in the cylinder tube. Further, the components such as the steering drive shaft can be assembled without disturbance from said bracket.

Abstract: The present invention relates to a door drive for garage, garden, hall or factory doors, comprising a motor unit which comprises a drive motor and a motor output shaft, an output transmission, which on the input end can be connected with the motor output shaft and on the output end includes a transmission output shaft for driving a door moving element, in particular a door shaft, a release clutch for releasing the motor output shaft with respect to the door moving element as well as at least one damping element for damping drive shocks. In accordance with the invention, the door drive is characterized in that the output transmission includes a transmission housing formed separate from the motor unit and together with the release clutch and the damping element forms a separate, modular drive attachment, which can be connected on the one hand to the motor unit and on the other hand to the door moving element.

Abstract: The invention relates to an arrangement for controlling gear positions in a car, comprising a console, having a wall (140), and one or more sensors (A, B) arranged in connection to said wall, and further comprising a gear lever (210) and a code device (220, 230, 240) which can interact with the said sensors (A, B), in which the code device (220, 230, 240) is connected to the gear lever (210) so that the code device is actuated to move upon motion of the gear lever. The code device (230) is pivotably secured adjacent to the gear lever (210) and the arrangement further comprises means (240) for biasing the code device (230) in the direction of the said console wall (140). Expediently, the arrangement further comprises an arm (220) by which the code device (230) is pivotably secured in the gear lever (210).

Abstract: A bicycle control device is provided with a lever bracket and an electrical unit. The lever bracket is movably supporting the control lever. The electrical unit is coupled to the lever bracket. The lever bracket includes a bracket body and a bracket lid. The bracket body has a rearwardly located bicycle mounting portion, a control lever mounting portion and a forwardly located unit mounting portion containing the electrical unit. The bracket lid is releasably coupled to a forwardly face of the unit mounting portion of the bracket body to at least partially enclose the electrical unit in the unit mounting portion of the bracket body.

Abstract: A bicycle control device is provided with a base member configured to be attached to a bicycle and an electrical switch with a switch operating member having a rider operating portion. An adjusting arrangement is configured to change a relative distance between the base member and the rider operating portion. In the illustrated embodiment, the bicycle control device has a control lever with a first end pivotally attached to the base member and a second free end spaced longitudinally from the first end of the control lever. The electrical switch is adjustably mounted to the control lever by a mounting arrangement that is configured to selectively secure the electrical switch in at least two different mounting locations on the control lever to change a relative distance between the base member and the rider operating portion.

Abstract: A bicycle control device is provided with a base member, an electrical switch and a plurality of switch operating members. The base member is configured to be attached to a bicycle, e.g., preferably to a drop type bicycle handlebar. The switch operating members are configured to be selectively mounted one at a time on the bicycle control device. In the illustrated embodiment, the electrical switch is mounted to a control (brake) lever. Each of the switch operating members preferably includes a rider engagement projection that is arranged to be located at a different relative location as determined relative to a longitudinal axis of the control lever when each of the switch operating members is selectively mounted to the pivoting portion of the electrical switch.

Abstract: A bicycle shift control device is provided with a stroke length control arrangement that allows the rider to selectively regulate at least one shift operating member between a single gear shifting operation position and a multiple gear shifting operation position. In the illustrated embodiment, the bicycle shift control device has a gear shifting mechanism that is operated by a pair shift operating members (levers). The stroke length control arrangement selectively limits movement of the shift operating member in a range of movement between the rest position and an intermediate actuating position by preventing the shift operating member from being moved past the intermediate actuating position to the fully actuating position.

Abstract: A bicycle shift control device is provided with a shift winding member, a winding pawl, a winding member return element, a gear shifting mechanism and a winding pawl biasing element. The winding member is movably arranged between a rest position and a shifting position. The winding pawl moves in response to movement of the winding member. The winding member return element biases the winding member to the rest position and to bias the winding pawl to a pawl engagement position when the winding member is moved from the rest position towards the shifting position. The gear shifting mechanism includes winding teeth that are engaged with the winding pawl. The winding pawl biasing element applies a biasing force to the winding pawl that urges the winding pawl to the pawl engagement position when the winding member is in the rest position.

Abstract: A shifter for use with a continuously variable transmission includes a grip portion and a hub portion. Specifically, the shifter is designed for use on a bicycle, but could also be used with any light vehicle. The grip portion is characterized by a rotatable adjuster that is coupled to a cable. The cable is also coupled to a hub portion. As the adjuster is rotated, the cable is pulled, in turn rotating a pulley assembly in the hub portion. As the pulley assembly is rotated, it advances a rod within a continuously variable transmission. The rod adjusts the power adjusters as described above. The grip portion is also unique in its display of information to the rider. The grip portion includes a display showing the ratio of input to output. The display also includes a filament that curves as the ration is adjusted. A high ratio renders the filament flat while the filament takes on a steep curve as the ratio is adjusted to make riding up hills easier.

Abstract: An arrangement (10) for disconnectably coupling an axially orientated motor vehicle brake booster control rod (12) to a brake pedal (14). A first end (16) of the control rod (12) is coupled to an intermediate part (20) of a vertical actuating bar (22) of the brake pedal (14). The first end (16) has a head (32) with at least one spherical bearing surface (34) that is housed in a complementary boss (36) formed in a wall of the intermediate part (20). The head (32) is kept in contact with the boss (36) via elastically deformable axial retention means (38) interposed between the intermediate part (20) of the actuating bar and the control rod (12). The deformation is controlled by an unlocking arrangement (52) that accessible from outside of the intermediate part (20) of the actuating bar (22).

Abstract: The invention concerns a push rod bracket assembly for use with a brake pedal assembly and method of assembly thereto. A pedal attachment pin is fixed to a brake pedal arm, and a booster clevis is mounted to the pin. The booster clevis may have a retainer clevis leg that mounts around the pin on one side of the arm and a slotted clevis leg with a slot that slides over the pin on the other side of the arm. A wave washer may be mounted in compression between the arm and slotted clevis leg to bias the leg, and a retainer clip may be mounted on the pin to secure the retainer clevis leg on the pin.

Abstract: The invention concerns a push rod bracket assembly for use with a brake pedal assembly and method of assembly thereto. A pedal attachment pin is fixed to a brake pedal arm, and a booster clevis is mounted to the pin. The booster clevis may have a retainer clevis leg that mounts around the pin on one side of the arm and a slotted clevis leg with a slot that slides over the pin on the other side of the arm. A wave washer may be mounted in compression between the arm and slotted clevis leg to bias the leg. A retainer clip or retainer spring may engage the pin to secure the retainer clevis leg on the pin. The retainer clevis leg may include a ramp and the slotted clevis leg may include a taper to assist in assembly.

Abstract: A pair of adjustment mechanisms (21, 41) interconnect a support (12) and first (14) and second (34) pedal levers. The adjustment mechanisms (21, 41) adjust the operational position of the pedal levers (14, 34) relative to the support (12). In particular, a stepper motor (52) and screw (32) unit moves the respective pedal levers (14, 34) along rods (28, 48). A controller (56) sends pulses of energy to each of the motors (52), measures a time to reach a predetermined resistance condition of each motor (52) during each pulse, and terminates energy to both motors (52) in response to the time being below a predetermined time period in any pulse to either motor (52), thereby synchronizing the movement of both pedal levers (14, 34).

Abstract: A pedal assembly for use in association with a vehicle includes a pedal support adapted for mounting to the vehicle. The pedal support includes a pivot shaft extending along a pivot axis and having an outer bearing surface. A pedal arm is rotatably engaged to the pivot shaft to allow pivotal movement of the pedal arm about the pivot axis. A clamp arm is pivotally coupled to the pedal arm and has a compression surface. A biasing member is engaged between the pedal support and the clamp arm and is arranged to apply a biasing force to the clamp arm to pivot the clamp arm relative to the pedal arm and toward the pivot shaft.

Abstract: A structure of shift lever head for a car with which the modeling of the shift lever can be changed at one's will; it comprises: a main body of the shift lever head; a lower decoration plate fixed on the top surface of the main body of the shift lever head; and an upper decoration plate fixed on the top surface of the lower decoration plate, after a locking hole of the lower decoration plate is locked onto the upper decoration plate by means of a locking element, another locking element is used to lock the lower decoration plate together with the main body of the shift lever head; thus the completed shift lever head for a car is formed, by changing the modeling of the lower and the upper decoration plates, the modeling of the shift lever can be changed at one's will.

Abstract: A rotation and extension/retraction link mechanism which realizes a rotary joint having a virtual rotation axis is provided. A rotation and extension/retraction link mechanism 1 is configured so that a first link 5 having a first virtual center line 3 and a second link 9 having a second virtual center line 7 are coupled through a rotation and extension/retraction joint mechanism 11. The rotation and extension/retraction joint mechanism 11 is configured to couple the first link 5 and the second link 9 so that when the second virtual center line 7 rotates relative to the first virtual center line 3 from a state where the first virtual center line 3 entirely overlaps with the second virtual center line 7, while crossing the first virtual center line 3, an intersection between the first virtual center line 3 and the second virtual center line 7 is displaced on the first virtual center line 3 by a predetermined distance corresponding to an angle of the rotation.

Abstract: A steering wheel assembly includes an armature having spokes over which a spoke ends of a steering wheel are molded. A back cover connects to the armature and the steering wheel. A trim plate snap-fits directly to the spoke ends of the steering wheel and to the back cover, without connecting directly to the armature. Because the trim plates are directly connected to the same two components with which the trim plates must provide proper fit and finish, proper fit and finish is ensured.

Abstract: Provided is a clutch pedal mechanism having a clutch lever member pivotably connected to a pedal mount and having a first position corresponding to an engaged clutch condition, a second position corresponding to an disengaged clutch condition, and a third position intermediate of said first and second position. A plurality of springs are provided to reduce the pedal effort required by the operator to move the clutch lever member from the third position to the second position. At least one of the plurality of springs is selectively removable to selectively increase the pedal force required to move the clutch lever member from the third position to the second position, such that the pedal force may be varied to correspond to the driving style of the operator.

Abstract: A pedal assembly for mounting to the floor of a vehicle. The pedal assembly includes a housing and a pedal arm that is coupled to the housing. A friction generating assembly is coupled with the pedal arm. A sensor is coupled to the friction generating assembly. The sensor is responsive to the movement of the pedal arm to provide an electrical signal that is representative of pedal arm displacement.

Abstract: A pedal for a bicycle includes pedal body, and at least one locking hook unit detachably mounted on the pedal body. The locking hook unit includes a fixing hook and a movable hook. Thus, the locking hook unit is locked onto the pedal body by a plurality of locking bolts to assemble the pedal, so that the pedal is assembled and disassembled easily and quickly, thereby facilitating a user assembling and disassembling the pedal. In addition, the locking hook unit has a hollow inside so that after the locking hook unit is attached to the pedal body, the spindle of the pedal body will not be obstructed by the locking hook unit to prevent the mud from being choked between the locking hook unit and the spindle of the pedal body.

Abstract: Disclosed is a vibration apparatus for generating a spheroid wavelength by eccentrically rotating a rotation shaft using an eccentric weight.

Abstract: In order to realise an idling disengagement by simple structural means in a dual mass clutch flywheel, a separation is provided between the damper system and spring system of a torsional vibration damper in this dual mass clutch flywheel.

Abstract: A cast hollow crankshaft for an internal-combustion engine and its manufacturing method are provided, which can reduce the weight by coring-out, can prevent bending of a core during manufacturing and floating of the core during pouring of molten metal so as to achieve precise manufacturing and provide the good productivity, and can eliminate the need of machining of oil holes. In the cast hollow crankshaft, a hollow portion has an elliptical cross section at a journal portion and/or a pin portion. Oil holes of the journal portion and the pin portion are formed by coring-out. The hollow portion also has an elliptical cross section at an arm portion. The manufacturing of this crankshaft uses a core that bends in a horizontal direction and has an elliptical cross section in which a major axis extends in a vertical direction at a journal part and/or a pin part.

Abstract: In accordance with certain embodiments, a modular crankshaft features a connection system between modules that features opposed female receptacles. A pin having opposed beveled ends and hydraulic passages with it is inserted into the opposed receptacles. A pair of seals is disposed on the beveled ends and straddles a hydraulic fluid outlet. The crankshaft wall that defines each receptacle is designed to flex in response to applied hydraulic pressure between the seals on the tapered pin portion. A notch at the base of the receptacle in the crankshaft reduces stress concentration and enables the wall defining the crankshaft receptacle to come back when hydraulic pressure through the pin is removed. The opposed crankshaft receptacles are flanged to allow them to be pulled together over the pin. An interference fit results around the pin after the flanges are mated and the hydraulic pressure is removed.

Abstract: The present invention provides a tractor which can prevent leaking of oil. In a tractor which forms a transmission casing by communicably connecting a plurality of cylindrical casings in the fore-and-aft direction, a shaft-support-wall forming body is detachably mounted on an inner peripheral portion of an end portion of one cylindrical casing, and end surfaces of the cylindrical casing are brought into face contact with each other and are connected with each other without interposing the shaft-support-wall forming body therebetween.

Abstract: A gearbox arrangement includes a gearbox housing, a first shaft supported in bearings in the housing, the first shaft containing a cavity which extends eccentrically to the axis of rotation of the first shaft, a second shaft supported in the cavity for rotation and having an end region projecting from the cavity and being provided with gear teeth, and a third shaft supported in the gear box housing for rotation, with the axis of rotation of the third shaft cooperating with the axis of rotation of the first shaft to define a plane. Leakage of lubricant from the housing is prevented by fastening a plate to the first shaft so as to prevent axial movement of the second shaft while containing an opening for the end region of the second shaft. Sealing devices are provided for all of the openings of the gearbox housing as well as for the opening in the plate in order to prevent the escape of lubricant from the gearbox housing.

Abstract: A method for spherically granulating and agglomerating metal particles such as tantalum and/or niobium powders is described in the present invention, which includes the steps of: a). comminuting the metal particles to form fine particles having D50 less than 50 ?m; b). granulating the comminuted metal particles comprising volatile liquid, for example, tantalum and/or niobium particles comprising volatile liquid, to form wet spherical particles; c). still drying the wet spherical particles and removing volatile liquid to form flowable pre-agglomerated particles with increased bulk density; d). heat treating the pre-agglomerated particles; e). screening the heat treated powder to obtain the flowable agglomerated particles. The present invention provides a flowable spherical agglomerated metal particles, and especially tantalum and/or niobium particles having improved properties. The present agglomerated tantalum powder have a flow rate of at least about 2.0 g/sec, a BET surface area of from about 0.

Abstract: A copper alloy powder for an electrically conductive paste is provided, which is characterized in that the copper alloy powder comprises 80 to 99.9 mass % of Cu and 0.1 to 20 mass % of one or two elements selected from the group consisting of Ta and W and has an average particle size of 0.1 to 1 ?m. This copper alloy powder has a higher starting temperature for sintering, higher oxidation resistance and better heat resistance than a copper powder.

Abstract: The present invention is a method for producing Ti or a Ti alloy through reduction of TiCl4 by Ca, which can produce the high-purity metallic Ti or high-purity Ti alloy. A molten salt containing CaCl2 and having Ca dissolved therein is held in a reactor vessel, and a metallic chloride containing TiCl4 is reacted with Ca in the molten salt to generate Ti particles or Ti alloy particles in a molten CaCl2 solution, which allows enhancement of a feed rate of TiCl4 which is of a raw material of Ti, and also allows a continuous operation. Therefore, the high-purity metallic Ti or the high-purity Ti alloy can economically be produced with high efficiency. Further, the method by the present invention eliminates the need of replenishment of expensive metallic Ca and of the operation for separately handling Ca which is highly reactive and difficult to handle.

Abstract: A method of making steel in an electric arc furnace is provided. The method comprises the steps of charging a steelmaking furnace with an iron source, wherein the iron source is melted and refined in the steelmaking furnace during a campaign, providing a source of lime that is screened by a first screening device, compacting the lime material adjacent to the steelmaking furnace to a predetermined size, charging the compacted lime to the steelmaking furnace within a short period of time to avoid degradation of the compacted lime, and adding additional fluxing agents and additives to the steelmaking furnace to produce refined steel in the campaign.

Abstract: A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and solvent extraction to produce a concentrated zinc solution is also provided. Zinc may be recovered from the concentrated solution by means of electrowinning, either in the absence or presence of manganese. Alternatively zinc may be recovered in the form of a zinc compound.

Abstract: The present invention relates to the use of liquid-crystal displays (LCDs), and to processes for the recycling thereof. The processes according to the invention are characterised in that the LCDs are employed at least partly as replacement for other raw materials. In general, the LCDs are thermally treated here at a temperature in the range from 900 to 1700° C.

Abstract: This invention relates to a more economical and efficient removal of a wine bottle cork. It also aids in the ergonomics of the food handling industry, waiters, bar tenders, also people with physical disabilities such as arthritis and carpal tunnel syndrome may be able to open a wine bottle with less pain and fatigue.

Abstract: The present disclosure provides an improved system and method of using a speed driver with a shank that can be selectively locked to the handle. Such locking can occur without significant effort or even removing the driver from the fastener during operation. The shank is biased in a first position with the handle for independent rotation in the handle, and selectively engaged with the handle in a second position with the handle. Thus, a speed driver can still offer the relatively rapid rotation from cranking the handle about the shank, yet selectively provide high torque similar to a fixed handle/shank arrangement in a typical screwdriver or other driver.

Abstract: An apparatus for rotating a tubular with respect to a drill bit, e.g., for making or breaking a connection between a tubular and a drill bit, the apparatus, in at least certain aspects including a frame, gripper apparatus connected to the frame for gripping and rotating a primary tubular, and a torquing frame with plate apparatus for holding the drill bit.

Abstract: An adjustable socket having first and second jaw members having manually selectable sizes. An exterior drive unit and a moveable inner driver unit each having serrated interlocking teeth are positioned to either engage during wrenching, or to be disengaged for socket size manual adjustments. The opposing first and second jaw members are forced by axial rotation of a spiral cam element located on the open top end of the outer drive unit to move laterally, inward or outward, when a user pulls the inner driver unit in a first direction and rotates the inner drive unit such that the first and second jaw members are positioned to engage a selected fastener head.

Abstract: A screw head and screwdriver for use in combination are provided to reduce the occurrence of stripping a screw head during tightening or removing the screw. The head slot employs slot walls that indent in some portion of the wall, the indent portion forming a ledge under which the screwdriver tip may be retentively captured thereby preventing the tip from lifting from the screw slot and stripping the screw head. The screw slot and driver also generally employ a tapered form, such that the slot widens from a central portion out to the outer circumferential edges. The narrow portion of the slot matching in form a narrow portion of the driver tip such that the driver tip tends not to slide off the screw head during use. Utilizing these inventive design concepts prevents the screwdriver tip from slipping off the head and resulting in the need to apply less downward pressure.

Abstract: A method and device are provided for loosening a sticking connection, in particular a glow plug in the cylinder head of an engine. The device comprises a mechanism for generating vibrations in an axial direction, preferably pneumatically, hydraulically or electrically, as well as means of transmitting the axial vibrations to the sticking connection, wherein the device also comprises means of exerting a couple, preferably read off or pre-adjustable, to the connection to be loosened. In the method, the sticking connection is subjected to preferably pneumatically, hydraulically or electrically generated axial vibrations, wherein a couple is also exerted on the sticking connection, preferably manually and pre-adjusted, in order to loosen it.