| 摘要 |
A controlled descent apparatus includes a cable which is wound on a spool and is unwound from the spool by the weight of a person to effect the descent. To limit the rate of descent, the spool turns as the cable is unwound and drives a positive displacement pump the output of which is through a flow control valve. A secondary braking system is designed to provide a smooth transition between the systems. The cable is guided through an opening, such as a window, by an arm which is formed by inner and outer sections pivotally connected to each other with the inner arm pivotally connected relative to the wall so that the arm may be placed in a compact stored condition. The release of a latch permits the arm to self-deploy into an active position.
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