(under the class definition) Roll having means (a) for sensing or detecting, (b) for analyzing some condition of the roll or roller, or (c) for signaling the existence or degree of a specific parameter.
(1) Note. A roll under this subclass is in nearly every instance a treating or shaping roller since there are numerous measuring, testing, or indicating classes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30+, for a roll having surface indentations, projections, or slits.
SEE OR SEARCH CLASS
116, Signals and Indicators,
200+, for an indicator of the fact and of the direction of rotation of an element or mechanism, shaft, etc.
