83 / | HD | CUTTING |
360 | DF | OPERATION CONTROLLED BY DETECTOR MEANS RESPONSIVE TO WORK {8} |
370 | .~ Actuation of tool controlled in response to work-sensing means {2} | |
371 | DF | .~.~> Sensing means responsive to work indicium or irregularity |
372 | DF | .~.~> With trip-switch in work-sensing mechanism |