BRAKE SYSTEM WITH PROGRESSIVE ACTION FOR A FREELY FALLING BODY
For stopping the fall of a body, e.g., of a safety rod in a nuclear reactor, the rod is suspended by a cable wound on a drum provided with a braking device. The drum has a horizontal axis and the cable lies on the drum in a helicoidal groove; the drwn moves in axial direction during its rotation, so that the free part of the cable undergoes no sideward movement. As a result of its axial movement the drum front comes into frictional contact with a brake disc. By the action of the drum this brake disc also undergoes an axial movement, against the force of a spring. To bring about the axial movement of the drum a threaded cylinder connected to it is screwed by its rotation into a support piece. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-014377
- OSTI ID:
- 4065899
- Report Number(s):
- FR 1217172
- Country of Publication:
- France
- Language:
- English
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