Other

Aaron Aronson

Arthur S Zerfahs

Edward C Jupa

An oil-filled thermometer tube is heated out and sealed. The tube is mounted with the bulb in a reference bath and sequentially moved through a reference station, a column height measuring station, a marking station and a sorting station. The measuring station includes a photosensitive camera having a columnar light source and a line array of photosensitive devices, which are electronically scanned to measure the column height. A plurality of sequential scans are made as a part of a pattern recognition system to insure a measurement only when an oil column has been scanned. The camera produces a digital output which is converted to an output signal to actuate a marker and a sorter at the respective stations.

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Franklin Park, IL, United States of America

Aaron Aronson