Abstract: A hydraulic actuator with no friction and zero leakage and its drive system are provided. The hydraulic actuator includes a thickened disc structure A and a thickened disc structure B. The second end face of the thickened disc structure A is connected with the first end face of the thickened disc structure B, and a control cavity is formed between the second end face of the thickened disc structure A and the first end face of the thickened disc structure B. The drive oil access hole is arranged on the thickened disc structure B, and the control cavity is connected with the drive oil access hole. The displacement output method based on elastic deformation is adopted, which completely avoids the nonlinear phenomena such as leakage and friction, and reduces the difficulty of high-precision control of the actuator.

Abstract: An electro-hydraulic micro-displacement platform, a micro-displacement system, a precision compensation system, and its method, comprises an x-direction guide rail and a y-direction guide rail slidingly connected with a cross slider respectively. The x-direction guide rail is fixed on the floor of the frame, and a z-direction fixed platform is fixed on the y-direction guide rail. The periphery of the z-direction fixed platform is connected with the side plate of the frame through the x-direction micro-displacement actuator and the y-direction micro-displacement actuator, the z-direction fixed platform is connected with the z-direction floating platform through the first z-direction micro-displacement actuator, the z-direction floating platform is connected with the z-direction auxiliary fixed platform through the second z-direction micro-displacement actuator, and the z-direction fixed platform is fixedly connected with the z-direction auxiliary fixed platform.

Abstract: A vehicle seat console has at least one vehicle-side guide element and at least one seat-side guide element that is arranged parallel to the vehicle-side guide element. At least one longitudinal adjustment device that is acted upon by a drive device is designed to bring about a relative adjustment between the vehicle-side guide element and the seat-side guide element. The longitudinal adjustment device is provided with a toothed rack and a gearwheel that is in meshing engagement with the toothed rack. The teeth of the gearwheel and/or the teeth of at least one section of the toothed rack are made of materials of different shear strength.

Abstract: A dispenser for additive material manufacturing having a sealed cartridge with sterile material to be dispensed. The cartridge is removable from a support housing that is movable during deposition of additive material. A nozzle extending from a heated plenum below the cartridge is inserted into a sealed variable volume enclosure supporting the article being manufactured on a movable table within the enclosure.

Abstract: A laser alignment arrangement includes a first stage configured to structurally support a laser at a first longitudinal position of the laser, the first stage being configured to adjust the first longitudinal position of the laser in at least one direction orthogonal to an axis of the laser, and a second stage configured to structurally support the laser at a second longitudinal position of the laser, the second stage being configured to adjust the second longitudinal position of the laser in at least one direction orthogonal to the axis of the laser.

Abstract: A reconfigurable interface assembly includes, but is not limited to, a first sub-assembly that is adapted for attachment to a work-piece supporter. The first sub-assembly includes a first brake. The reconfigurable interface assembly further includes a second sub-assembly attached to the first sub-assembly. The second sub-assembly is adapted for attachment to a work-piece manipulator. The second sub-assembly includes a second brake. The first sub-assembly is configured to move the second sub-assembly in a first direction with respect to the first sub-assembly and the first brake is configured to inhibit movement of the second sub-assembly in the first direction with respect to the first sub-assembly. The second sub-assembly is configured to move the first sub-assembly in a second direction with respect to the second sub-assembly and the second brake is configured to inhibit movement of the first sub-assembly in the second direction with respect to the first sub-assembly.

Abstract: The subject of the invention is a device for positioning an object in space, comprising at least 4 plates, each one able to move with respect to another of said plates which is contiguous with it along one of the 3 axes of space, it being possible for the movement of one plate with respect to another plate to be guided by a tenon/mortise assembly in which said tenon is secured to one of the plates and its mortise is produced in the other plate, the spatial orientation of each of the tenon/mortise assemblies being different from the other 2 and along one of the 3 axes of space.

Abstract: A workpiece fixture assembly is provided herein. The workpiece fixture assembly includes a baseplate including an engagement surface. First and second static risers are configured to maintain a position of a workpiece. The first static riser includes a first gage bore thereon. A dynamic riser is configured to abut the workpiece and has a second gage bore thereon. A numerical control machine has a probe to measure an offset distance between the first and second gage bores. A linearly actuable workpiece support is disposed on the baseplate.

Abstract: A spherical orienting device includes a base, first and second actuation shafts, an orientable device, an inner member, a middle member, and an outer member. The first and second actuation shafts are rotatably held by the base for rotary actuation about first and second actuation axes, respectively, which intersect orthogonally at a spherical center of rotation. The orientable device is supported by first and second revolute support joints which are disposed for rotation about an orientation axis of the orientable device and a support axis, respectively. The inner member is fixed to the first actuation shaft and linked to the second support joint. The middle member is inwardly linked to the first support joint and outwardly linked to a middle revolute joint disposed for rotation about a linkage axis. The outer member is fixed to the second actuation shaft and linked to the middle revolute joint.

Abstract: Increasing in size of a reaction force cancel system is suppressed. The reaction force cancel system is provided in a stage device including: a surface plate having a plurality of plate surfaces with different heights from each other, and installed on a floor via a vibration-isolating spring; and stages disposed on the plate surfaces respectively, and moving on the plate surfaces, and cancels reaction forces generated on the surface plate upon movements of the stages. In addition, the reaction force cancel system includes a first and a second reaction force canceling actuator that apply counter-thrusts to the surface plate, and a control section that controls the magnitudes of the counter-thrusts. In the reaction force cancel system, the heights of action points of counter-thrusts in the surface plate are different from each other, and the control section controls the counter-thrusts so as to counterbalance the reaction forces as resultant forces and resultant moments.

Abstract: An apparatus for analyzing a population of particles is set forth. The apparatus includes an emitter adapted to generate a beam of electromagnetic radiation, such as from a laser, and a particle chamber disposed in a path of the electromagnetic radiation beam. The apparatus also includes a sensor to detect electromagnetic radiation scattered by or otherwise received from the particle chamber. A sensor alignment unit supports the sensor along a detection axis and allows adjustment of the position of the sensor along orthogonal axes lying in a plane that is generally perpendicular to the detection axis. In one embodiment, the sensor alignment unit includes a first support platform and a first adjustment mechanism disposed to adjust the position of the first support platform along a first orthogonal axis. The sensor alignment unit also includes a second support platform that supports the sensor.

Abstract: A pipe fixing device comprising a plurality of pipes, for conducting liquid or gas, arranged to cross each other, and a fixing member for fixing the plurality of pipes. The fixing member comprises a plurality of pipe fixing bores, and a plurality of fitting bores for the fitting of bands used to tighten the pipes. The present invention can secure not only easy insertion of the pipes arranged to cross each other, but also enhancement in a coupling force of the pipes through the use of the tightening bands, resulting in stable and reliable fixation of the pipes.

Abstract: The present invention comprises an apparatus for supporting a frame from a utility container. The apparatus comprises a plurality of support members being configured to form a box. The support members are slidably attached to each other. The apparatus further comprises at least one actuator being positioned between and attached to the support members. When the actuator is caused to lengthen, the support members slide away from each other until the box maintains position in the utility container thereby providing support to the frame.

Abstract: In order to accommodate differential expansion between thermal protection panels and a structure to be protected, the present invention provides a stand-off for holding the panels, the stand-off comprising a first portion allowing displacements to take place in a first direction and a second portion allowing displacements to take place in a second direction. Each of the two portions also presents a high degree of stiffness in a direction corresponding to tear-off and crushing forces applies to the panels. The stand-off is made as a single piece having first and second recesses formed therein in order to make the first and second portions respectively in determined orientations so that the resulting stand-off allows displacements to take place in two distinct directions perpendicular to the tear-off and crushing directions.

Abstract: Provided is an ultra-precision feeding apparatus. The feeding apparatus comprises an actuator horizontally positioned between a base and a motion stage movably provided to the top of the base, first hinge member which is fixed to the base and one end of the actuator, second hinge member which is fixed to the other end of the actuator, third hinge member with two hinges which is fixed to the motion stage, and a lever member with a notch hinge which is fixed to the base and cooperates with the second hinge member and the third hinge member.

Abstract: The connecting mechanism of the invention is pivotally mounted between the display device and the computer host. The connecting mechanism has an articulated arm having a first rod and a second rod connected to each other via a hinge. The ends of the first rod are respectively pivotally connected to a sidewall of the computer host and the hinge. The second rod is longer than at least half a width of the display device. A third end of the second rod is pivotally mounted on a sidewall of the display device in an appropriate location, such as a central part of the sidewall. A fourth end of the second rod is pivotally connected to the hinge. The above arrangement allows inclination and horizontal/vertical adjustments of the display device relative to the computer host.

Abstract: An optical component mounting apparatus for use in an aircraft for maintaining alignment of the optical components during use of the aircraft, the apparatus including an “L” shaped frame and a plurality of “L” shaped mounts, for holding the optical components, in adjustable positions by use of bolts extending through slots, oriented in three orthogonal directions, in the frame and the mounts.

Abstract: A two-axis stage assembly includes a generally planar horizontally mounted base plate; a stage plate generally parallel to the base plate, the stage plate having a first axis and second orthogonal axis; a set of spaced bearings depending from a bottom surface of said stage plate, the bearings each having an arcuate bottom surface in rocking contact with a facing support surface of the base plate; a joint attached to the bottom surface of the stage plate and pivotably mounting each bearing, the joint being positioned at the center of curvature of the arcuate bottom surface of the associated bearing; and where an axial movement of the stage plate rocks the bearing arcuate bottom surfaces with respect to the facing support surface of the base plate.

Abstract: The invention is directed to a support (1) for an apparatus (3) which is to be suspended so as to be movable. The support (1) includes a holding arm (17) and an adjusting unit (19) mounted on the holding arm (17). The adjusting device (19) includes a slidingly displaceable sliding disc (25).

Abstract: A two-axis stage assembly includes a generally planar horizontally mounted base plate; a stage plate generally parallel to the base plate, the stage plate having a first axis and second orthogonal axis; a set of spaced bearings depending from a bottom surface of said stage plate, the bearings each having an arcuate bottom surface in rocking contact with a facing support surface of the base plate; a joint attached to the bottom surface of the stage plate and pivotably mounting each bearing, the joint being positioned at the center of curvature of the arcuate bottom surface of the associated bearing; and where an axial movement of the stage plate rocks the bearing arcuate bottom surfaces with respect to the facing support surface of the base plate.

Abstract: An improved panel positioning device which can be easily and accurately regulated by linearly regulating a heightwise displacement of the panel. A panel is mounted to an upper portion of a holder, and the holder is pivotally mounted to a holder support plate, a first regulating plate provided with first and second side plates on both sides is located below the holder support plate. First through fifth regulating knobs regulates a pivot angle, a lengthwise position, a widthwise position, a pivot angle about a lengthwise axis, and a heightwise position of the holder respectively. A third regulating plate for regulating the heightwise position of the holder is mounted to a side frame so as to be lengthwisely moved and is engaged with the fifth regulating knob at one side thereof.

Abstract: An XY table that uses linear electromagnetic actuators to achieve faster operating speeds, improve durability, prevent generation of dust and reduce size (make more compact). The cord for supplying electrical power to the linear electromagnetic actuators and the cords for obtaining signals from each type of sensor are concentrated at an intermediate movement member (X table), and gathered together into a single cord that is used for connection to the outside (controller, etc.). As a result, detrimental effects caused by the cord are minimized which enables the XY table to demonstrate the performance described above.

Abstract: An adjustable mounting for a deflector of a trough assembly in a glass machine is adjustable in two perpendicular directions in a horizontal plane. More than one deflector may be used.

Abstract: An isolator for protecting a display object from damage as a result of shock and vibration associated with seismic activity or other external forces. The isolator has a base support which is fixed in position with respect to the ground, an intermediate support which interengages with the base support and may slide side-to-side along one axis, a top support for mounting the object thereon and interengaging with the intermediate support to slide side-to-side along a different axis, and restoring means to urge the top and intermediate supports to return to their neutral rest positions. The interengagement between levels is accomplished by tracks that slidably engage rows of roller bearings rotatably mounted along opposite side edges of an adjacent support, and the restoring means include elongated, non-flexible compression spring assemblies formed by stacked Belleville washers that yieldably urge follower rollers against cam tracks formed along the sides of the supports.

Abstract: A two-axis adjustable instrument mount having a fixed base plate, an intediate plate and an instrument mount plate. The intermediate plate is attached to the base plate by a three-point mount in the shape of an isosceles triangle. The two mounting points corresponding to the base of the triangle include hinge flex plates fixed to the base plate by means of rigid stand-offs. The flex plates are also fixed to the edge of the intermediate plate. The third mounting point corresponding to the apex of the triangle has a resilient block between the intermediate plate and the base plate. A threaded fastener passes through the resilient block and secures the intermediate plate to the base plate. Tightening or loosening the threaded fastener causes the resilient block to compress or expand thus allowing adjustment of the angle of the intermediate plate about the axis of the hinge plates with respect to the base plate.

Abstract: A positioner facilitates docking and undocking of an electronic test head with a device handler. The position provides for rotation of the test head about a first axis.

Abstract: An X-Y table apparatus comprises a base (12), an X-directional moving member (14) movable in the X direction with respect to the base, a mounting member (18) movable in the Y-direction with respect to the X-directional moving member and being capable of loading articles and displacement detecting member (20) for detecting displacements of the mounting member with respect to the base. The displacement detecting member includes a main scale (24) cooperatively provided on the center of the rear face of the mounting member and having a first matrix-shaped land lattice, and an index scale (26) provided in parallel with the base so as to be movable in directions in a two-dimensional area with respect to the main scale and having a first orthogonally cross lattice (80) and a second orthogonally cross lattice (82), such that the displacement detecting member has a simple structure and effects accurate X-directional displacement and Y-directional displacement detection.

Abstract: A silk screen work station and clamp mechanism assembly for the precise positioning and support of a work piece comprising a cabinet which has an upper planar work surface with a centrally disposed working area and a pair of compartments below the work area and with cabinet drawers and storage space. The central working area also has a rectangular opening formed therein. The opening has lateral and longitudinal edges. A work plate in a rectangular configuration corresponds to the rectangular opening in the work surface, but slightly smaller lengthwise and width-wise for precise positioning within the opening during operation and use. A pair of spaced parallel lead screws are secured to the under side of the work surface on opposite sides of the opening through bearing members. The bearing members are secured to the under side of the work surface.

Abstract: An apparatus for positioning an operational member, particularly for use in an optical laser system for optically trapping and manipulating microscopic particles in a particle manipulation chamber. A flexure member, is provided which has a pair of substantially inflexible parallel members and four sets of flexible spring members. The pair of parallel members is maintained in a spaced relationship by the four sets of flexible spring members. Each of the four sets of flexible members has at least two parallel flexible elements which can be leaf springs or formed as a unitary part of the flexure member. The four sets of flexible spring members are in two groups of two flexible spring members with each of two of groups of flexible members having their two sets of flexible spring members positioned in a "V" shaped pattern. The apices of the "V" shaped patterns are positioned outwardly of each other forming a parallelogram having at least six sides and preferably a parallelogram having eight sides.

Abstract: An X-Y table assembly including a first, second and third tables all fabricated from a sheet metal by bending is provided. Each of the first, second and third tables includes a bent section formed with a guide groove, and two associated guide grooves of any adjacent two of the tables are located opposite to each other to define a guide groove in which a plurality of rolling members are provided. Thus, a linear relative motion can be provided between the first and second tables in X direction, and another linear relative motion can be provided between the second and third tables in Y direction.

Abstract: An object of the present invention is to provide a two dimensional drive system having higher positioning accuracy. The drive system includes a pair of first linear guides provided in a first direction; a pair of second linear guides provided in a second direction; a pair of first travellers slidably engaged with the first linear guides; a pair of second travellers slidably engaged with the second linear guides; a first ball bearing screw rotatably spanned between the second travellers; a second ball bearing screw rotatably spanned between the first travellers; a slider screwed with the first and the second ball bearing screws, the slider being capable of moving on the ball bearing screws; a first and a second motors for driving each ball bearing screw; a first restrainer for restraining the inclination of the first ball bearing screw with respect to the first direction; and a second restrainer for restraining the inclination of the second ball bearing screw with respect to the second direction.

Abstract: A movable table having two yokes mounted one above the other so as to be movable in two directions perpendicular to each other. Stage guides are provided on top surfaces of the yokes to extend in a direction perpendicular to the moving direction of the yokes. The upper yoke is formed with a through hole having a length determined by the length of the stage guides thereof. A stage is mounted above said yokes at the intersection of the yokes. On the bottom surface of the stage, there are provided slide bearings held in engagement with the stage guides of the upper yoke and slide bearings extending through the through hole in the upper yoke and held in engagement with the stage guides on the lower yoke.

Abstract: A fixture comprising three plates capable of exercising decoupled motion along three angular axes. A first end of a connecting rod is mounted, by way of a spherical bearing in one of the plates, while an opposite end is secured to the peripheral center of a spherical sector platform. The periphery of the platform is supported on bearings mounted to a rotatable gear which imparts yaw motion to the spherical section. Displacement of the connecting rod causes tilting of the spherical section in roll and pitch directions. Three linear and three rotational degrees of freedom are possible for the platform while maintaining a constant pivot point at the center of the sector's radius of curvature, on the system axis. The pivot point lies above the unobstructed mounting surface of this fixture.

Abstract: A sleeping bed for a motor vehicle which is effectively isolated from jars and vibrations encountered during highway travel comprises a movable frame which is supported by inflatable air bags from a stationary frame affixed to the floor of the vehicle. Three position valves control the in-flow and out-flow of air from the air bags, the valve being mechanically coupled by linkages to the movable frame so that its relative displacement controls the pressure within the air bag. The movable frame is supported on the pistons of the air bags by first and second slide members which permit longitudinal and transverse horizontal movement of the movable frame. Springs are employed to restore the movable frame to a neutral horizontal position following acceleration/deceleration forces tending to move the movable frame and mattress in the fore and aft direction and when longitudinal sway forces act on the bed.

Abstract: An X-Y drive apparatus includes an X drive unit mounted on a stationary base and a Y drive unit mounted on an X table of the X drive unit. The X drive unit includes a first motor operatively coupled to the X table and a second motor operatively coupled to a splined shaft. A worm gear is mounted on the splined shaft such that the worm gear may move along the splined shaft slidably, but it does not rotate around the splined shaft. The Y drive unit includes a Y table and a ball screw which is operatively coupled to the Y table and which has a worm wheel in mesh with the worm gear.

Abstract: A working apparatus includes a pair of supports which are provided on a base, and a pair of parallelly disposed linear servo-motors each of which is settled on each of the supports. Sliders of the linear servo-motors support the ends of a beam so that the beam extends perpendicular to the servo-motors and is moved according to the simultaneous movements of the sliders. Another linear servo-motor is provided on the beam, and the slider of this motor bears a working head. The working head is moved along the beam in accordance with the slider movement.

Abstract: Combining a plurality of two dimensional drive systems, a plurality of moving bodies can be independently moved by each of the two dimensional drive systems. Therefore, tools, robot-heads, work, etc. attached to the moving bodies can be moved independently. By attaching one of the two dimensional drive systems to another, the movement of both moving bodies are composed, so that the moving body of the one attached to another can be moved compositely. Therefore, the moving body or a tool, etc. attached thereto can be moved in a complex motion.

Abstract: A movable table has a movable platen, a flange member secured to the movable platen and a fixed platen sandwiched between the movable platen and the flange member. Thrust bearings are disposed between the fixed platen and the movable platen and between the fixed platen and the flange member. Drive units are coupled to the movable platen to move the movable platen along the thrust bearings. Instead of supporting the movable platen on the thrust bearings, it may be supported in a non-contact manner by blowing compressed air into clearances defined between the fixed platen and the movable platen and between the fixed platen and the flange member.

Abstract: A shift travel device, exemplified by a vertical lift arm device, is described which provides for free rotation of its cylinder and arm about its shaft and free travel along the shaft without transfer of twist imposed by the arm and load to its shaft, constant sealing of operating air pressure within the cylinder during operation and load changes, and minimum friction during rotation when the cylinder and arm are in the extreme raised or lowered positions. The device includes unique self-aligning spherical bearings at the ends of the cylinder. The device is useful is a wide variety of environments, including those which are unusually dirty or clean.

Abstract: Apparatus for holding a small workpiece or probe in a fixed orientation and for translating the workpiece/probe in one, two or three perpendicular directions by various displacement mechanisms. One embodiment uses two curvilinear frames of constant width, across which two other planar frames move for displacement in one direction. A second embodiment uses a flexible sheet frame resembling a parallelogram for displacement in one direction. A third embodiment uses a different parallelogram configuration. These and other displacement mechanisms are combined to allow displacement in one, two or three perpendicular directions.

Abstract: The apparatus has a supporting frame defined by four uprights bearing a pair of horizontal parallel beams interconnected by cross members having guides. A gearmotor-driven carriage is movable horizontally along the guides in a first direction. The carriage bears rods extending parallel to the guides. A gearmotor-driven trolley is movable along the rods in a second direction which is orthogonal to the first direction. The trolley rotatably supports a downwardly extending C-shaped frame having a platform supporting a working unit. The frame is rotatable about an axis which is perpendicular to the first direction of movement of the carriage and perpendicular to the second direction of movement of the trolley.

Abstract: A positioning table for locating a workpiece (17) at a predetermined position in a thin film forming apparatus. A base plate (2) movable in X-direction is supported below a workpiece placing table (12) for placing the workpiece thereon. A reference member supporting member (4) mounted on the base plate is respectively movable both in Y-direction and .theta.-direction about a predetermined shaft. First, second, and third reference members (5a, 5b, 5c) capable of contacting the workpiece by an urging device are supported by the reference member supporting member. When each reference member is moved in the X-direction or the Y-direction so as to locate the workpiece at the predetermined position, the three reference members move together with the reference member supporting member (4) in each direction. When the workpiece is moved in the .theta.-direction, the three reference members reliably rotate about the predetermined shaft and the rotational center of the workpiece is fixed.

Abstract: In a drive system of the present invention, a first slider can be moved in first and second directions by movement of first travellers and second travellers. A second slider can be moved in the first and the second directions in a plane which is located away from a plane in which the first slider moves. A third slider can be moved in the second of the first direction on the second slider. Therefore, the first and the third sliders can be synchronously moved despite the plane in which the first slider moves and the plane in which the third slider moves being separated from each other.

Abstract: In a movement guiding device, two parallel stationary guides are fixed to a surface plate and plural hydrostatic gas or bearing members are provided for the surface plate and the stationary guides. A Y stage is moved in a Y-axis direction under the influence of these bearing members. Additional hydrostatic gas or air bearing members are provided in relation to the surface plate and the Y stage so as to support an X stage for movement in an X-axis direction orthogonal to the Y-axis direction. Guide of the Y stage in the X-axis direction is made by the stationary guides on the surface plate, while guide thereof in a Z-axis direction perpendicular to an X-Y plane is made by the surface plate. Guide of the X stage in the Y-axis direction is made by the Y stage, while the guide thereof in the Z-axis direction is made by the surface plate, similar to the Y stage. With such structure, any vibration, rolling, or otherwise, of the Y stage is not transmitted to the X stage. Thus, high-precision guide is attainable.

Abstract: An isolator for seismic activity including an upper level for supporting an object to be protected, an intermediate level, and a lower level for attachment to the floor or other structure. An interconnection is provided between the upper and intermediate levels to permit relative movement between the levels along a first axis, and a similar interconnetion is provided between the intermediate and lower levels to permit relative between along a second axis perpendicular to the first axis. Each of the interconnections includes one or more bars mounted on one of the levels and defining guide faces oblique to the axis of movement, and a lever pivotally mounted on the other of the levels with a roller for engaging the guide faces, with a spring biasing the roller toward the guide faces. The interconnection also includes tracks and bearings riding on the tracks to provide the interface movement between the levels.

Abstract: An optics X-Y positioner has an optics support positioned within a housing having sides and front and rear walls. The optics support has a groove on one face which rides in an X direction along a ridge in a sliding guide plate. The guide plate slides within a flat groove in the Y direction in the rear wall of the housing. X and Y direction adjustment screws extend through sides of the frame and abut the optics support. A spring in tension is wrapped about the optics support in a circumferential groove to force the optics support against the adjustment screws.

Abstract: A positioning device for a table on which a semiconductor wafer is moved into an inspection position is described. It comprises a pneumatic stage supporting the table and movable both in the x and y directions, a moving device using wire which moves the stage in the x or y direction, and a fine resolution lifting device which moves or lifts the table vertically.

Abstract: A calibration stand for multiforce component sensors is capable of providing six components of force and moment to such sensors, using support and loading apparatus on the calibration stand. The stand is a compact, portable unit that provides for holding the sensor in a precise position by fully permitting pitch and lateral adjustments of the support assembly, as well as vertical and lateral adjustments for axial and "roll" or moment loading. The adjustability permits accurate applications of normal, lateral, and axial loads on the sensor being calibrated. Load cells are used to measure the application of the loads, and by proper instrumentation the output from the load cells can be used for recording data or providing digital displays. A coupling for carrying loads to the sensor permit determining whether shear loads are being introduced into the sensor and the adjustments permit zeroing out such shear loads so the loads are directed along the desired axes only.

Abstract: An arrangement for releasably securing an equipment or instrumentation box in the cockpit of aircraft in alternate orientations by having one portion of the box apertured to cooperate with pins on a mounting tray and another portion slotted to cooperate with a biasing clamp on the mounting tray.

Abstract: A mechanism for moving a table means lengthwise and crosswise of the table has two mutually orthogonal pairs of table carried parallel guide faces adapted to be mounted on the table, a support base, two pairs of guide members having two mutually orthogonal pairs of parallel guide faces in spaced opposed relation to corresponding pairs of said table carried guide faces, the guide members being movably mounted on the support base for movement in a direction for moving parallel guide faces of the respective pairs in a direction perpendicular to the length of the guide faces, two pairs of parallel straight motion guide bearing mechanisms mounted between opposed pairs of guide faces for lengthwise movably supporting the table on the guide members, and a driving device engaged with at least one guide member of each pair of guide members for moving the one guide member in a direction to move the guide face thereof in the perpendicular direction.