182 / | HD | FIRE ESCAPE, LADDER, OR SCAFFOLD |
70 | DF | WITH STORAGE DEVICE FOR SUPPLE ESCAPE {4} |
73 | DF | .~ Reel {2} |
236 | .~.~ With means for retarding unwinding of strand type escape {4} | |
237 | DF | .~.~.~> Including spring for rewinding strand |
238 | DF | .~.~.~> Fluid resistance brake |
239 | DF | .~.~.~> Movable, friction brake element applied by centrifugal force |
240 | DF | .~.~.~> Friction brake and occupant-operated mechanism for applying brake during descent |