(under the class definition) Method or apparatus including the step of or means for causing cessation of operation of a machine of this class or a part thereof in response to some condition occurring in the material being fed, or through a defect in the machine or its operation.
SEE OR SEARCH CLASS
200, Electricity: Circuit Makers and Breakers,
61.13+, for an electrical switch which is controlled by a thread or strand: subclass 61.14, wherein the switch is controlled by a knot or change in the diameter of the thread or strand; and subclass 61.18, wherein the switch is controlled by the slack or run out or failure of the strand to travel along its intended path, in order to stop the machine.
