(under subclass 236) Process or apparatus including a step of or means for detecting the presence or absence of a condition of the work material, so as to bring about a change in the drafting operation (other than the mere cessation thereof) in response to such detection.
(1) Note. Such change in the drafting operation may be, typically, machine speed variation in response to a condition in the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.2+, for means to stop the machine in response to some defect in the work or the machine.
SEE OR SEARCH CLASS
73, Measuring and Testing, for pneumatic testing of strand thickness, pressure on a top roll, and drafting force.
226, Advancing Material of Indeterminate Length, 10+, for means to stop a machine in response to a defect in material being fed.
