194 / | HD | CHECK-ACTUATED CONTROL MECHANISMS |
229 | DF | CONTROL MECHANISM RESPONSIVE TO PLURALITY OF CHECKS {3} |
232 | .~ Including part locked by detent and released by check {2} | |
233 | DF | .~.~> Stationary detent |
234 | DF | .~.~> And means to impart thrust to check to unlock part {1} |