| 49 / | HD | MOVABLE OR REMOVABLE CLOSURES |
| 208 | DF | MOUNTED FOR MULTIDIRECTIONAL OR OBLIQUE MOVEMENT {7} |
| 236 | DF | .~ One direction imparts gravitational bias to swinging closure; e.g., rising hinge {2} |
| 237 | DF | .~.~ Biased by inclined cam and descending slide or roller {2} |
| 239 | | .~.~.~ Mating inclined cam and slide surfaces |