| 194 / | HD | CHECK-ACTUATED CONTROL MECHANISMS |
| 293 | DF | INCLUDING NONCONTACTING, RELATIVELY MOVABLE PARTS CONNECTED BY CHECK {2} |
| 294 | DF | .~ And means to impart thrust to check to move part {2} |
| 295 | DF | .~.~ Having pivoted part {2} |
| 296 | DF | .~.~.~ Coaxial pivoted parts {1} |
| 297 | | .~.~.~.~ Spring biased part |