WHEEL ALIGNMENT APPARATUS

Wheel alignment apparatus using a modulated beam of light or radiant energy to determine the attitude of an operational axis of a vehicle with respect to a reflective reference means. A pair of light responsive sensors are disposed on a device that may be attached to a wheel on a vehicle. The energy...

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description Wheel alignment apparatus using a modulated beam of light or radiant energy to determine the attitude of an operational axis of a vehicle with respect to a reflective reference means. A pair of light responsive sensors are disposed on a device that may be attached to a wheel on a vehicle. The energy reflected to each may then be a measure of the attitude of the wheel or its axis with respect to a reference such as the reflector. Means are provided to indicate when each of the sensors is receiving sufficient light energy to prevent false indication of a predetermined alignment relationship. Means are also provided to modify the sensitivity of the sensors in accordance with the relative distance from a reflective reference.
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subjects MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PERFORMING OPERATIONS
PHYSICS
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
TRANSPORTING
VEHICLES IN GENERAL
title WHEEL ALIGNMENT APPARATUS
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