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} |
240 | DF | .~.~ Shiftable pivot {3} |
242 | DF | .~.~.~ Mounted on eccentric or lever {2} |
244 | .~.~.~.~ Pivot on vertically oscillating lever |