Method and device for controlling belt tracking
AssigneeRoyal Doulton (UK) Limited
InventorsDavid K. Hulse, Norman J. Lawton
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Abstract
A method and apparatus for use in sensing and correcting wander in a conveyor belt system employed to transport articles of greater width than the width of the belt itself, comprising for sensing deviations from a mean belt edge position at at least one side of the belt, generating a signal in response to such deviations, timing the duration of the signal, and an actuator operable to adjust tracking of the belt when the signal is generated for a period of time greater than that taken for the projecting portion of an article carried on the belt to move past the sensor.
Claims9
A method of sensing and correcting wander in a conveyor belt system employed to transport articles of greater width than the width of the belt itself, comprising sensing deviations from a mean belt edge position at at least one side of the belt, generating a signal in response to said deviations, timing the duration of said signal and actuating means for adjusting tracking of the belt when said signal is generated for a period of time greater than that taken for the projecting portion of an article carried on the belt to move past the means by which said sensing is effected.
Apparatus for use in sensing and correcting wander in a conveyor belt system employed to transport articles of greater width than the width of the belt itself, comprising means for sensing deviations from a mean belt edge position at at least one side of the belt, means for generating a signal in response to said deviations, means for timing the duration of said signal, and actuating means operable to adjust tracking of the belt when said signal is generated for a period of time greater than that taken for the projecting portion of an article carried on the belt to move past said sensing means.
Dependencies are inferred from the claim text.