Abstract: A single-point clamp of four-wheel aligner for vehicles connected to a fixing hub nut on the wheel comprises a sleeve, a single-point variable hexagonal grip, a fastening nut, a connecting board, and a target board with magnets. The single-point variable hexagonal grip and the fastening nut are respectively disposed at two ends of the sleeve. The single-point variable hexagonal grip is firmly lodged in the fixing hub nut. Two ends of the connecting board are respectively connected to the sleeve and the target board. A using method includes: (1) loosening the fastening nut of the single-point clamp; (2) inserting the single-point variable hexagonal grip into the fixing hub nut of the wheel; and (3) rotationally fastening the fastening nut for clamping the fixing hub nut firmly.

Abstract: A vehicle integrated wheel alignment monitoring system for monitoring and testing a dynamic roadwheel for misalignment as the vehicle is being operated. The monitoring system includes a synchronous position sensing apparatus and a synchronous verifier device for initiating a test for roadwheel misalignment at the time and position that a predetermined vehicle body height position is achieved during a suspension stroke and subsequently deactivating the test when the predetermined vehicle body height position is surpassed. The test includes determining if a predetermined roadwheel alignment value is in synchronization relative to the predetermined vehicle body height position at the time and position that the predetermined vehicle body height position is achieved. Detecting an in sync condition represents proper roadwheel alignment and detecting an out of sync condition represents roadwheel misalignment.

Abstract: A method and apparatus for alignment of a rear axle of a motorcycle, whereby measurement is made of the relative positions of each end of the axle with respect to the axle mounting structure, thereby reducing the time necessary for aligning the axle, and increasing the accuracy of the alignment.

Abstract: A camber/caster gauge that is attachable to the axle of a wheeled vehicle. The device is simple to use by attaching the gauge to an automobile axle end and zeroing out the measurement dials.

Abstract: The disclosure shows a face plate or main plate for mounting to a tire axle with arms extending outward to hold a tire positioned where a rim would otherwise hold the tire so that the user may determine if the tire and rim will work with the vehicle wheel well. Expanding arms with grips on either side for holding opposite sides of the tire bead are described so that the tire may be held in an expanded position. All of the parts are interchangeable or expandable to allow a plurality of tires or lug bolt patterns to be accommodated. A process for using the device is also taught.

Abstract: Disclosed is a northfinding apparatus having a single rotation rate sensor secured to a platform. The output of the rotation rate sensor is corrected for tilt and tilt rate of the platform. Measurements of the tilt and tilt rate and the rotation rate are combined to provide an azimuth angle of the platform relative to north.

Abstract: An automobile wheel alignment method and apparatus are provided for duplicating the pre-determined readings for the parameters of camber, caster, and toe, and allowing for the precise adjustment of such parameters at a location remote from the conventional alignment machine. First, second, and third indicators are provided, along with a gauge element, for duplicating the readings for camber, caster, and toe. Also provided are a housing for containing the indicators, and mounting means for removably securing the housing to a hub assembly after the wheel has been removed.

Abstract: By adjusting two telescoping-type interengaging shiftable parts for each of two frame bars (3,4) of a support frame (2) of a lightweight wheelchair (1), the sitting position of the same can be adjusted with respect to the seat surface (5) and with it the adjustment of the center of gravity can be dynamically adjusted with respect to the user. Additional adjustment possibilities by means of each support element (17) at the right and left sides of the seat surface (5) with respect to the rear axle as well as corresponding clamping devices for the front wheels (9,10) on the frame (2) allow a very precise user-compatibility in this lightweight wheel chair. Additionally a backrest (6) can be collapsed with respect to the seat surface (5) by means of handles (20) pivotally connected with the frame bars, to thereby permit the lightweight wheelchair (1) to be compactly folded up for transportation purposes.

Abstract: A method of effecting compensation of cooperatively coupled vehicle wheel aligner instruments since a shift or change of position of either one of a coupled pair of angle measuring transducer instruments can introduce changes in the signal values generated in both transducers which are representative of errors not heretofore recognized in prior alignment instruments. The method is directed to initially generating signals responsive to the position of rotation of vehicle wheels at each of two positions 180.degree. apart, simultaneously recording the generated responsive signals from each transducer instrument at each position of rotation of the vehicle wheels, and applying the recorded responsive signals at the two selected positions of wheel rotation upon the initial signals at the selected positions of wheel rotation such that the transducer instrument signals are mutually compensated for aberrations in the relationship of the mounting of the transducer instruments on the vehicle wheels upon being rotated.

Abstract: The method of this invention comprises setting the vertical members clamped to the stationary part of the hub of each steerable wheel in the same plane as the turning axis for that wheel when the weight is off that wheel, and then gauging the chamber and caster from the pendular means and cooperating scale mounted on the vertical members after the wheel is again normally loaded or weighted. The toe-in angles of the steerable wheels are gauged relative to the direction of the non-steerable wheels when the steerable wheels are put in their straight ahead or forward position by the manual steering wheel therefor controlled by the operator of the vehicle.

Abstract: Axial extensions connected to the stationary hubs of the steerable wheels of a vehicle, each of which axial extensions angularly mounts a vertical member adjustable to be in the same plane as the turning axis of its corresponding steerable wheel, and supports a pendular pointer and cooperating scale for directly indicating the camber and caster angles of its corresponding steerable wheel. Stationary parallel brackets are anchored outside and adjacent each wheel of the vehicle for mounting adjustable slide blocks for supporting gauge plates and toe-in gauges, which blocks are adjustable to be directly vertically below the axes of the wheels. The gauge plates cooperate with plumb bobs from the axial extensions and are used for setting the vertical members on their axial extensions to be in the same plane with the turning axes of the steerable wheels.

Abstract: A caster-camber gauge includes an automatic interlock for presetting the caster and camber wheels, and a spirit level which is laterally mounted for calibration of the gauge.

Abstract: Wheel alignment apparatus for electrically indicating the alignment condition of a vehicle wheel in which there is sensing means, including an element adapted to be detachably secured to the wheel, for producing an electrical output dependent upon the extent of inclination of the wheel and an electrical display device having a movable member positioned in accordance with the electrical output of the sensing means. The sensing means is designed to selectively detect toe-in, camber, and caster.

Abstract: An instrument for measurement of the principal alignment angles of vehicle wheels, namely, camber, caster, steering axis inclination, and toe, and method pertaining to the latter; the instrument and attachments embodying novel features designed for simplicity of operation, high accuracy, improved resolution of readings, durability, and economy.