US PATENT SUBCLASS 182 / 239
.~.~.~ Movable, friction brake element applied by centrifugal force

Current as of: June, 1999
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182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

70  DF  WITH STORAGE DEVICE FOR SUPPLE ESCAPE {4}
73  DF  .~ Reel {2}
236  DF  .~.~ With means for retarding unwinding of strand type escape {4}
239.~.~.~ Movable, friction brake element applied by centrifugal force

DEFINITION

Classification: 182/239

Movable, friction brake element applied by centrifugal force:

(under subclass 236) Device wherein the slowing or stopping means includes a brake having at least one movable element which frictionally engages the reel or structure connected thereto and is actuated or applied by centrifugal force generated from the rotation of the reel.

SEE OR SEARCH CLASS

187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,

373+, for an elevator car supported brake whose actuation is controlled by the speed of the car.

188, Brakes,

180+, for speed-responsive brakes.

254, Implements or Apparatus for Applying Pushing or Pulling Force,

267, for a rotatably driven drum which pulls on a cable and includes a rotational speed governor for generating a control impulse to rotation-retarding means or to the drive.