(under subclass 80) Devices in which electrical energy is utilized to operate the stop mechanism, the strand detector or responsive device usually operating to close or open an electric control circuit.
SEE OR SEARCH CLASS
66, Textiles: Knitting,
161, and the classes referred to in the notes thereto.
200, Electricity: Circuit Makers and Breakers,
61.13+, for electrical switches which are controlled by threads or strands; see subclass 61.14 where the switch is controlled by a knot or change in diameter of the thread or strand, and subclass 61.18 where the switch is controlled by the slack, breakage, run-out or failure to travel along its intended path.
