Abstract: In the method for balancing a body of revolution using a balancing machine which comprises an adjustment means for positional resetting of compensation masses, firstly the compensation masses are brought into zero positions thereof, wherein the imbalance vectors produced thereby cancel each other out. Then in a known manner the imbalance vector VI present is measured in terms of its magnitude and direction. After this at least one of the compensation masses is reset by shifting through any desired angle &agr; or by changing its distance from the axis of rotation, an additional imbalance being produced with a calibration imbalance vector V2. After this in a known manner the overall imbalance vector V3 present is measured in terms of its magnitude and direction and from the imbalance vector V1 and the overall imbalance vector V3 the calibration imbalance vector V2 is calculated from V2=V3−V1, the system comprising the balancing machine and the body of revolution being calibrated.

Abstract: A scanning force microscope (10) sometimes referred to as an atomic force microscope employs a laser (32) and a cantilever (28) which move proportionally to a moving reference frame (64). A fixed reference frame (11) contains optical components. A scanning mechanism creates relative movement between the fixed and moving reference frames. An optical assembly (114) is included which comprises at least one optical device in the fixed reference frame. The optical assembly permits initial alignment of the laser beam onto the cantilever and also permit the laser beam to follow the moving cantilever.

Abstract: An AFM that combines an AFM Z position actuator and a self-actuated Z position cantilever (both operable in cyclical mode and contact mode), with appropriate nested feedback control circuitry to achieve high-speed imaging and accurate Z position measurements. A preferred embodiment of an AFM for analyzing a surface of a sample includes a self-actuated cantilever having a Z-positioning element integrated therewith and an oscillator that oscillates the self-actuated cantilever at a frequency generally equal to a resonant frequency of the self-actuated cantilever and at an oscillation amplitude generally equal to a setpoint value. The AFM includes a first feedback circuit nested within a second feedback circuit, wherein the first feedback circuit generates a cantilever control signal in response to vertical displacement of the self-actuated cantilever during a scanning operation, and the second feedback circuit is responsive to the cantilever control signal to generate a position control signal.

Abstract: A driving arrangement is provided for a measuring instrument having a movable element which is movable relative to a measuring instrument body. Measurement of an object to be measured is carried out through movement of the movable element. A driving and guide device is mounted on the measuring instrument body, and includes a driving cylinder having a piston received therein for axial movement. The movable element is moved in synchronism with the axial movement of the piston. A hydraulic fluid control device is arranged at a location remote from the measuring instrument body, for supplying hydraulic fluid to the driving cylinder of the driving and guide device to cause the axial movement of the piston of the driving cylinder.

Abstract: A text fixture for testing a transfer case electronic control unit according to this invention comprises an eletro-mechanical shift mechanism having electronic inputs and outputs for coupling to electronic inputs and outputs output of the transfer case electronic control unit and an output shaft coupled to a transfer case load simulator. In a preferred embodiment, the transfer case load simulator comprises first and second oppositely wound torsion springs having identical torque characteristics coupled in opposed relation to the output shaft of the eletro-mechanical shift mechanism.

Abstract: In order to improve a device for measuring hydraulic flow quantities and leaks in a specimen, including a measurement path, embodied as an approximately vertically extending lead line to the specimen, and a capacitor sensor, which is disposed in the measurement path and can be acted upon both by at least one measuring medium and by at least one medium for generating a pressure (pressure medium) on the measuring medium in such a way that precise measurements of flow quantities and leaks are possible in a technically easily achieved way, the specimen is coupled directly to the measurement path.

Abstract: The present invention provides a method and apparatus for determining a performance characteristic of at least one of a plurality of fuel injectors located within a fuel system. The method includes the steps of determining a first desired fuel quantity to be delivered by the plurality of injectors, suspending fuel delivery by one of the injectors, determining a second desired fuel quantity to be delivered by the injectors in response to the suspension, and determining a performance characteristic of the suspended injector in response to said first and the second desired fuel quantity.

Abstract: A thermal type air flow measuring instrument is mounted to a main passage forming an intake air passage of an internal combustion engine and is provided. with an auxiliary passage which includes a heating resistor and a temperature sensing resistor therein and an electronic circuit which is electrically connected to the heating resistor and the temperature sensing resistor. The auxiliary passage is a passage including at least one bent portion composed of a first path substantially parallel to the main passage and a second path having a path different in flow direction from the first path. A member forming the auxiliary passage is fixed in a united form to only a case member for interiorly protecting the electronic circuit, and the case member is fixed to the outer wall surface of the intake air passage.

Abstract: A flow rate sensor comprises a fluid passage for a fluid to flow therealong; a main body structure arranged so as to turn its front end to the upstream side of the fluid and coaxially positioned within the fluid passage; and a detecting element disposed between the main body structure and the internal surface of the fluid passage. The main body structure is formed such that its cross section perpendicular to its central axis, at first becomes gradually larger from its front end towards its rear end and then becomes gradually smaller. The detecting element includes a ceramic substrate coated with a film made of a thermo-sensitive electrically resistant material. The film is formed into a meander pattern so as to form a flow rate detecting resistance. The detecting element further includes a fluid temperature compensating resistance.

Abstract: An angular rate sensor made from a structural wafer of single crystal silicon has a pair of proof masses lying in an X-Y plane and supported by a circular frame. The masses are driven into oscillation in the X-direction using an interdigitated comb drive. Rotation of the sensor about the Z-axis induces Coriolis forces which cause the frame to rotate, the rotation of the frame being indicative of the angular rate of the sensor. A parallel plate sensor located outside of the circular frame senses rotation of the frame.

Abstract: A vibratory sensor, such as for example a hemispherical resonator gyroscope (HRG) operating in the whole angle mode, is disclosed with a self-calibrating function and an improved precision. Precision is improved using two multiplying low noise DACs to estimate the position of the standing wave relative to a fixed position on the HRG. During a first half cycle the DACs multiply a measured standing wave position by an estimated standing wave position, such that the product of the two signals approach zero. The small voltage output can then be amplified using high gain to minimize the noise in the standing wave angle prediction. Using an ADC, the amplified signal is converted and transmitted to a microprocessor for evaluation. In the second half cycle, the low noise multipliers are evaluated using a known reference signal, where the product of the known reference signal and the multipliers are evaluated against a predicted signal to determine multiplier drift.

Abstract: A method of determining the acoustic impedance of a fluid in a borehole, by gating a reflected acoustic signal into a plurality of time slots, and comparing received energies of the signal for the time slots to obtain a value indicative of the acoustic impedance of the fluid. The value may be normalized to yield the acoustic impedance of the fluid using the acoustic impedance of, e.g., water as a calibration point. The comparison is performed by comparing a ratio of an integration of a first ring down time slot and a second ring down time slot, to an integration of an internal reflection time slot. The acoustic pulse may be generated using a transducer immersed in an intermediate fluid contained within a chamber defined in part by a plate in contact with the borehole fluid and having a thickness such that a mechanical resonance frequency of the plate in a thickness mode is substantially equal to a resonance frequency of the transducer.

Abstract: A route based ultrasonic monitoring method for use by an operator in detecting when the ultrasonic sound produced by a device indicates the presence of a leak or machinery defect. The route based ultrasonic monitoring method uses a central processing location to store testing information concerning which machines to test and how to configure a portable ultrasonic sensing device to test them. At the appropriate time, the testing information is loaded from the central processing location into the portable processing and storage unit. The operator is then prompted by the portable processing and storage unit to proceed to a test location. Once at the test location, the portable processing and storage unit provides the testing information to the portable ultrasonic sensing device. The test is then performed by the operator with the portable ultrasonic sensing device and the test results are downloaded from the portable sensing device to the portable processing and storage unit.

Abstract: A shaking table has a control unit for controlling the shaking table so that a target waveform signal is reproduced with at least an acceleration measuring signal as a feedback signal. The control unit is adapted for effecting control by employing the force applied to the shaking table from a specimen under test loaded on the shaking table as the feedback signal. As a control error deriving from the force is canceled, highly accurate acceleration reproducibility is attainable even in the case of a non-linear specimen under test whose dynamic characteristics fluctuate with time.

Abstract: A method of using a microscopic digital imaging strain gauge includes the steps of creating a mark pattern on an object surface, positioning an image sensing device over the mark pattern, magnifying the mark pattern with a magnification lens, taking a first magnified image of the mark pattern with the image sensing device, applying a load to the object surface, taking a second magnified image of the mark pattern, and utilizing a processor to calculate the strain as derived from the first and second magnified images.

Abstract: A method of detecting an overcoating rubber flowed in a space between a core member and a securing metal fitting of a polymer insulator having the core member, the overcoating arranged around the core member and the securing metal fitting fixed to at least one end of the core member, is disclosed. The method includes the steps of: applying a torque in a circumferential direction to the securing metal fitting, after forming the overcoating rubber but before fixing the securing metal fitting to the core member; deforming an index provided on a surface of the overcoating; and detecting whether the overcoating rubber is existent or not in the space between the securing metal member and the core member in response to a deforming extent indicated by the index.

Abstract: A method and apparatus in which the blood flow in a fistula is determined by comparing the property of blood entering the fistula to the property of blood being withdrawn from the fistula as the blood in the fistula flows in the direction which is the reverse of the predominant flow. A property marker fluid is injected into the blood entering the fistula in order to alter the property of the blood. Aseptic conditions are maintained during the reversal of the blood flow by maintaining a closed blood loop exterior to the patient. The blood loop closure is maintained by reversing the action of the pump which induces blood flow in the closed blood loop.

Abstract: An ultrasonic flowmeter for flowing media, has a measuring tube and at least one ultrasonic transducer, the ultrasonic transducer being installed in contact with the flowing medium in a transducer pocket of the measuring tube. The flowmeter eliminates the disadvantages and problems present in the known ultrasonic flowmeters, caused by eddies generated by the transducer pocket, by providing the transducer pocket with a grid having a mesh, in which the grid is located at the entrance side of the transducer pocket.

Abstract: A method and apparatus for measuring gas flow in a conduit includes the steps of providing a plurality of gas flow measuring devices, positioning the gas flow measuring devices at a plurality of positions in the conduit, and substantially simultaneously measuring the gas flow at each position. A gas flow measuring apparatus includes a plurality of flow-measuring probes, each probe including one or more gas flow measuring devices, a separate pressure transducer connected to each probe, a data logger connected to the transducers, and a computer connected to the data logger.

Abstract: A linear drive having a device for sensing and evaluating an operational force acting on the linear drive is to be of simple design and is to be constructed so as to be functionally effective with a high degree of accuracy. For this purpose, the operational force on the bearing part supporting the displaceable part of the linear drive in a housing is sensed and electronically evaluated by a magnetostrictive force sensor.

Abstract: A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with an outside zone outside the body. The second and third chambers are initially isolated from one another by a control valve. Upon activating the control valve, fluid may flow from the second chamber to the third chamber through a flow restriction. An extendable floating piston is disposed between the first and second chambers, and the floating piston defines a variable volume therein. An initial amount of well fluid flows into the variable volume, thus trapping dirty fluid, and subsequently, a well fluid sample is flowed into the first chamber. An isolation valve is provided for allowing hydrostatic pressure into the sampler after the fluid sample has been taken.

Abstract: A system for subterranean termite detection, concentration and suppression is provided by deploying quasi-subterranean food masses configured in three functional forms tailored to each phase of a comprehensive program to detect, concentrate and suppress subterranean termite colonies. The detectors have subterranean entry/egress ports leading into lateral passageways connected to one or more vertical cavities joined to a signal port in the dorsal surface of the detector. Subterranean termites seal the signal port with soil detritus, producing a distinctive visual change in the dorsal surface of the detector. This alerts a human observer to the presence of the termites. The signal port may have a reflector in a cavity coupled to the signal port for reflecting light directed thereat to determine occlusion of the cavity by termites. The signal port may also have a mesh disposed thereacross to prevent unwanted obstruction thereof, and to encourage occlusion thereof by a termite's fecal material.

Abstract: An in-line testing method for non-intrusively testing the force required to complete the closure of a power assisted sliding door assembly onto a door opening having resistance seals, comprising: (a) providing a door switch and a timing device within the power assist sliding door assembly to at least measure the time lapse from a door ajar position to a door locked position; and (b) if the time lapse is slower than a pattern time lapse for a model assembly of the same door known to be properly fitted, adjusting the door ajar gap in the test assembly to reduce the force required to achieve a door locked position.

Abstract: A change gear transmission device for a scanner comprises a motor, a first gear, a second gear and a third gear. The second gear and the third gear are movably arranged within the scanner and can be moved in axial direction. The first gear is coaxially connected with the motor. The second gear and the third gear are arranged on one end of the driving shaft of the scanner and have different tooth number. The first gear is optionally engaged with the second gear or the third gear by the movement of the second gear and the third gear. In a preferred embodiment of the device, the second gear is a spur gear and the third gear is an indent gear (ring gear). Therefore, the inventive change gear transmission device can provide both high speed and high accuracy ability to the scanner with low/high resolution.

Abstract: The invention concerns a control arrangement for an automatic electrohydraulically controlled transmission. In order to reduce expenditure on parts and assembly, the hydraulic control system and electronic control system are mounted directly adjacent each other and plug-in connections are provided between the solenoid valves of the hydraulic control system and the electronic control system. The hydraulic control system (20) substantially comprises two duct panels (28,30) in which control ducts, piston slides and solenoid valves (not shown) are disposed for controlling the conical plates and couplings of the transmission. The pressurized hydraulic fluid is fed directly into these duct panels from the pump (29). The electronic control system (22) has a single central connection (36) which is secured in the transmission housing cover (42) by an annular seal. Rotational speed sensors for the transmission shafts and temperature and pressure sensors are integrated into the control unit.

Abstract: A multi-speed transmission suitable for automotive-type use employs paired helical gears. For each speed of the transmission, at least one pair of helical cut gears is mounted on an input drive shaft for engaging and mating at least one pair of helical cut gears mounted on an idler shaft. During load transmission for a given speed, the helical gear pairs on the idler shaft center themselves on the helical gear pairs on the drive shaft to balance load transmission amongst gears. The idler shaft would also have at least one pair of helical cut gears to engage and mate at least one pair of helical cut gears on a power output shaft.

Abstract: A shift-lever device includes a position plate integrated with a base plate and formed with a detent groove, a shift lever supported to the base plate to be swingable along the position plate and including a base arranged adjacent to the position plate, and a compression rod arranged through the shift lever to axially be movable by operation of a knob button. A detent protrusion is arranged with the compression rod at a lower end to be engageable with the detent groove. A guide integrated with the base of the shift lever holds part of the detent protrusion longitudinally with respect to a vehicle body.

Abstract: The invention relates to an adjustment device for motor vehicle seats which contains a gearing part which meshes with a gearing member to limit backlash, the gearing part is formed by a main part consisting of a main gearing and a compensation part with an elastic member arrange between the parts. A swiveling axis connects the parts. The degree of backlash of the two parts is restricted to a circular movement based on the connection through the swiveling axis.

Abstract: A lid opener for use in a vehicle comprises a base member secured to a vehicle body. A control lever is pivotally connected to the base member. A rear portion of the control lever is connected through a wire to a latch mechanism of a lid member. The control lever is capable of canceling a latched condition of the latch mechanism when pivoted in a normal direction from a rest position to a work position. A spring is used for biasing the control lever to assume the rest position. A first stopper structure includes the rear portion of the control lever and a part of the base member. The rear portion is kept in contact with the part of the base member when the control lever assumes the rest position. A second stopper structure includes a part of the control lever and a stopper member which is defined by either one of the vehicle floor and the base member.

Abstract: A joystick controller includes a pivoted lever, a main bush carried on the lever and co-operating with a cam surface, and a secondary bush carried on the lever and biased against an inclined surface of the main bush to bias the main bush against the cam surface. The secondary bush abuts a stop when the lever is pivoted through a predetermined angle parallel to a major axis of displacement such that farther displacement in the same direction causes the secondary bush to slide along the inclined surface of the main bush and displace along the lever against the bias. Accordingly, increased resistance to displacement is provided.

Abstract: A manual transmission is disclosed wherein a large number of shift arms are arranged evenly over a pair of selector rods. The design has the advantages of rendering the transmission compact in size, making it possible to enhance the stiffness of the shift arms, and making the layout of the gearshift mechanism more flexible. The synchromesh manual transmission 1 has a pair of selector rods 31, 32 arranged in parallel with the output shaft of the transmission 1. The selector rod 31 is mounted with a 1st-speed, one reverse shift arm 37 and its associated shift block 44 against sliding movement while mounted with a 2nd-, 3rd-speed shift arm 38 integral with a shift block for sliding movement. Likewise, another selector rod 32 is mounted with a 4th-, 5th-speed shift arm 39 for sliding movement and further connected to a shift lever 40 for a 6th-speed shift arm. The shift block mechanism 56 and the shift blocks 38, 39 are arranged in symmetry relationship about the center point C.

Abstract: In order to guide a cable for a robot in a protective fashion while facilitating simple insertion of protected cables in a robot arm, in particular a robot arm bearing a hand arbor motor, having a cable guide channel extending substantially along the robot arm and having a sideward opening along its entire length.

Abstract: A handling robot prevents a positioning in a motor unit power transmission system from becoming inaccurate and can eliminate occurrence of vibrations due to a twisting deformation and so forth in the system. The handling robot has an arm fastened to an outside of each of a plurality of ring bosses that are arranged coaxially and turnably. Each of such arms is connected via a link to a carrier table so that turning the ring bosses in mutally opposite directions may cause the carrier table to reciprocate in a perpendicular direction to a turning axis; and turning them in a same direction may cause the carrier table to turn. A plurality of motor units corresponding to the ring bosses are arranged coaxially with each other and at positions that are insides of the ring bosses and lower than a position where the carrier table may operate.

Abstract: Horizontal slots and vertical slots in a fixed bracket and a movable bracket of a steering device provide a simple and compact structure for the adjustment of a steering wheel. A tightening shaft passes through both the horizontal and vertical slots. The operator adjusts the tightening shaft to provide either for free movement of the steering wheel, or for locking of the steering wheel in an operator selected position. This structure provides for the simultaneous adjustment of not only the tilting and telescoping of the steering wheel, but also for the inclination of the rotation plane of the steering wheel.

Abstract: An apparatus and a method employing a first Bowden cable retention member to retain the first cable member of a first Bowden cable and a second Bowden cable retention member to retain the second cable member of a second Bowden cable. The first Bowden cable retention member is sized to receive the first cable member, but not the second cable member. The manner in which the first cable member is sized may relate to a particular dimension, such as diameter or length or its overall shape in relation to the corresponding particular dimension or overall shape of the second cable member.

Abstract: A two-piece expanding lock control cable end fitting for connecting a co-axial cable assembly with a support structure. The first piece is a sleeve that is attached, typically by crimping, to the conduit member. The second part is a lock clip member. The lock clip member includes a base flange, a cylindrical portion and an inclined portion. During assembly the base flange on the clip member will contact the mating part and prevent the clip member from traveling through the mating part. The mating part could be a backing plate, a frame member, or brake lever component. When the clip member stops traveling through the mating part, the sleeve continues to move through the clip member. The end of the sleeve contacts the inclined portion of the clip member causing the clip member to expand. When the sleeve it is fully seated in the clip member, a locking feature on the clip member engages the sleeve to prevent removal of the sleeve from the clip member.

Abstract: The assembly is characterized by simultaneously molding the support fitting (18) and the swivel tube (20) of an organic polymeric material to be bonded to the conduit which extends between the support fitting (18) and the swivel tube (20) to allow the swivel tube (20) to oscillate.

Abstract: An adjustable automotive pedal system includes a parallel bar suspension system for a foot pedal assembly system, such that the foot pedal can be adjusted toward the driver seat or away from the driver seat without adversely changing the force-stroke relationship between the foot pedal and the component being controlled by the foot pedal. The pedal system can be used with the vehicle brake, or vehicle clutch, or accelerator linkage.

Abstract: A transaxle casing for a vehicle is adapted for various types of loading through the use of bearing holders. Power from an engine of the vehicle is transmitted to a differential in a transaxle casing. The transaxle casing has laterally outwardly extending left and right axle housing portions. Left and right driving axles are supported in the axle housing portions of the transaxle casing through bearings. Concavities are formed in each of the axle housing portions. When the transaxle casing is employed by a light vehicle or under a light load, needle bearings and seals are fitted in the concavities of the axle housing portions for journalling the ends of the left and right driving axles. When the transaxle casing is employed by a heavy vehicle or under a heavy load, the needle bearings and seals are removed and bearing holders containing ball bearings are attached to the ends of the axle housing portions by inserting convexities formed in the bearing holders into the concavities of the axle housing portions.

Abstract: A rear end gear pump for providing lubricant/coolant to a rear axle assembly of a racing vehicle that is removably securable to the interior of a rear axle housing. The rear end gear pump is preferably coupled to a pinion shaft of the rear axle assembly and provides lubricants/coolants to the entire rear axle assembly. The pump includes a substantially hollow pump casing for removable attachment to the interior of the rear axle housing, a pair of pump gears housed within the interior of the pump casing, an input port formed through the hollow casing for receiving lubricant/coolant into the pump, means for conducting lubricant/coolant into the pump connected to the input port, a bearing lubrication port formed through the pump casing to provide lubrication to the pinion bearing and an output port formed through the hollow casing for conducting lubricant/coolant away from the pump. One of the pair of pump gears is attachable to the pinion shaft of the rear axle assembly.

Abstract: A housing 2 for a vehicular transmission comprises a first room R1 which accommodates a continuous speed change mechanism and a second room R2 which accommodates a driving force transmission mechanism including a starting mechanism, a reduction train, a differential mechanism, a power supply mechanism for an oil pump, etc. In each room, inlet openings 72 through 74 for oil discharge passages are provided near and above both the sides of an oil pan 26 in the horizontal direction perpendicular to the input and output shafts of the continuous speed change mechanism, to return lubrication oil to the oil pan 26. Also, walls 61 through 65 are provided in the rooms to lead the lubrication oil into the respective inlet openings. In this construction, the lubrication oil returning from each room to the oil pan 26 is stabilized at each room and discharged to the oil pan 26, and thereby the lubrication oil achieves homogeneity in the oil pan 26.

Abstract: An improved housing, particularly one for an automotive differential assembly, is provided. The housing has a cast portion formed from a first material and a preformed insert member formed from a second material which is cast into the cast portion. The insert member is strategically placed in an area of the housing to selectively enhance or alter the properties of the housing at that location. The insert member may be encased in a wall of the cast portion or may extend partially through a wall of cast portion depending upon the characteristics which are being enhanced or altered. The properties which may be enhanced or altered include, for example the strength, electric or thermal conductivity, magnetic potential, chemical compatibility or the coefficient of friction.

Abstract: A counter plate is provided as a receiving surface opposed to a cutting die to be installed in a die cutting machine for stamping a sheet material into a predetermined shape and making ruled lines thereon, wherein the cutting die has rulings and cutting blades and the counter plate has edge bearing portions formed on portions corresponding to the cutting blades and hollows corresponding to the rulings, and a process for manufacturing the cutting die and counter plate comprising hardening selected portions thereof using laser beam irradiation.

Abstract: A device for providing proper clearance when driving a nail having a head into a surface. The device includes a handle, a blade, an anvil, and apparatus that rotatably attaches the blade to the handle. The handle is held in a hand of a user. The blade extends rotatably from, and is replaceably attached to, the handle and captures the nail between the head of the nail and the surface when the nail is being driven into the surface. When the nail is driven into the surface, the blade provides the proper clearance. The anvil is disposed on the handle, opposes the blade, and is hit sideways to free the blade from between the head of the nail and the surface after the nail has been driven into the surface.

Abstract: A stud bolt tool and method for using the stud bolt tool to install or remove a threaded stud bolt from a threaded blind bore. The stud bolt tool has a cylindrical housing having a first and second surface and an internally threaded bore communicating with the first and second surfaces. The housing includes a plurality of circumferentially spaced ports surrounding the internally threaded bore. The ports communicate with the first and second surfaces of the cylindrical housing and each port has a threaded portion extending to the second surface. A plurality of balls are slidably stacked in each port. The ball nearest the first surface is capable of partially protruding beyond the first surface and is also capable of retracting within the port below the first housing surface. A screw threadably engages each threaded portion of each port. Advancement of the screw into the port forces the ball to partially protrude beyond the first surface.

Abstract: A machine is disclosed for assembling a metal picture frame having mitred frame sections connected to each other by L-shaped corner pieces which have legs extending into receiving channels within the frame sections and screws in each leg accessible from the back of the frame through an elongated slot in the frame sections. The machine comprises a base on which a corner of the frame can be supported, and a pair of guide rails on the base for engaging the elongated slots to two adjacent frames sections. A corner brace is provided for securing a corner edge of the frame in a fixed position. Two screw drivers extend through the base at a position in which they are aligned with the corner piece screws when the slots of two frame sections engage the guide rails and the corner edge of the two frame sections engages the brace. A motor attached to the base plate rotates the screw drivers to tighten the screws and thereby fasten the frame sections together.

Abstract: An apparatus and method for attaching a processor bracket to a system board. The apparatus includes: a) a driver base, b) a plurality of air drivers secured to the driver base, c) a screwdriver rod, with a screwdriver head, extending from each air driver, and d) a positioning guide attached to the driver base. The method includes the steps of: a) positioning a processor bracket, having a processor bracket slot and having multiple bracket nuts, on a system board, b) positioning a positioning guide of a multiple nut driver within the processor bracket slot, c) contacting the bracket nuts with the corresponding screwdriver heads of the multiple nut driver, and d) exerting downward pressure on all the screwdriver heads.

Abstract: Disclosed is a low profile air ratchet wrench with an improved rotor geometry for use in accepting a variety of stem sizes and shapes. Also disclosed are improved stem constructions. The stem constructions employ offset spring biased balls which allow for a better securement between the stem and rotor wall.

Abstract: A screwdriver-type tool includes a handle having first and second handle parts connected pivotally to each other. An inclination positioning unit is provided such that the first and second handle parts are rotatable between an alignment position, where the first and second handle parts are aligned with each other, and an inclined position, where the first and second handle parts form an obtuse angle therebetween.

Abstract: A slip nut wrench comprises a C-shaped body portion having circumferentially spaced apart opposite ends from which handles extend laterally outwardly of the body portion to facilitate manual expansion and contraction thereof relative to a slip nut to be rotated thereby. The inner surface of the body portion includes a slip nut engaging arrangement for engaging slip nuts having a noded outer periphery.