| 49 / | HD | MOVABLE OR REMOVABLE CLOSURES |
| 208 | DF | MOUNTED FOR MULTIDIRECTIONAL OR OBLIQUE MOVEMENT {7} |
| 209 | ![]() | .~ Initial or terminal movement transverse to sliding movement edgewise of portal {6} |
| 210 | DF | .~.~> Common operator for both movements |
| 211 | DF | .~.~> Transverse movement aligns closure for movement into housing |
| 212 | DF | .~.~> Transversely movable track |
| 213 | DF | .~.~> Skewed track {2} |
| 216 | DF | .~.~> Moves transversely on link {2} |
| 221 | DF | .~.~> Closure carried by track-mounted carriage {4} |