Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1978-12-13
1980-11-04
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156378, 425140, G01B 100
Patent
active
042318238
ABSTRACT:
A method and apparatus for centering two concentric cylinders having different diameters is the subject of the present invention. A linear reference line is projected from an illuminating source along the length of the inner cylinder. At the other end of the cylinder is a photo receiver operable to provide a displacement reading related to the amount of light striking the receiver. As the inner cylinder is rotated about its center point, the amount of light striking the photo receiver varies based on the amount of arcuate displacement present at each point of the cylinder. The photo receiver then converts the incoming light into a displacement reading related to the arcuate displacement of the inner cylinder. The readings thus obtained are correlated with the points on the inner cylinder where they occurred to indicate the point and amount of maximum arcuate displacement. Thereafter, the outer cylinder is arcuately displaced a corresponding amount so that it will conform to the inner cylinder exactly.
REFERENCES:
patent: 2816837 (1957-12-01), Holsman
patent: 3914356 (1975-10-01), Dembiak
Bridge John F.
Hart Milburn L.
H. C. Price Co.
Simmons David A.
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