Spool design and operation permit installation of up to 8 cables on single unit. Heat treating the cables while wound in a coil obtains effective recoil action

Angele, W.

Campbell, E. C.

English

NASA Technical Reports Server

November 1971	 Brief 71-10416 
S
NASA TECH BRIEF 
Marshall Space Flight Center 	
A 
NASA Tech Briefs announce new technology derived from the U.S. space program. They are issued to encourage 
commercial application. Tech Briefs are available on a subscription basis from the National Technical Information 
Service, Springfield, Virginia 22151. Requests for individual copies or questions relating to the Tech Brief program may 
be directed to the Technology Utilization Office, NASA, Code KT, Washington, D.C. 20546. 
Spool for Releasing and Retracting Flat Conductor Cable 
A new spool assures proper unwinding and re-
winding of FCC cables in pullout panels or drawers. 
Recoil action is obtained by heat-treating the cables 
while wound in a coil. 
As many as 8 cables may be installed by removing 
one side of the spool and placing the cables edge-
wise between the spindle and the spool assembly
screw. The side of the spool is replaced and the 
spool is positioned midway on the cable length. 
The cable ends are prepared and are attached to the 
sections to be interconnected. 
It is advisable to use at least two spools laterally 
separated as far as the drawer permits and to pro-
vide a rod as a rotating axis for the coils to prevent 
flipping and entanglement of the cables during fast 
retraction. 
Forming the cables for recoiling should be done 
by winding each FCC separately in bifilar fashion 
onto a small-diameter heat-treatment spool. 
Note: 
Requests for further information may be directed 
to:
Technology Utilization Officer 
Code A&TS-TU 
Marshall Space Flight Center 
Huntsville, Alabama 35812 
Reference: B71-10416 
Patent status: 
No patent action is contemplated by NASA. 
Source: W. Angele and E.C. Campbell
Marshall Space Flight Center
(M FS-20234)
Category 08 
This document was prepared under the sponsorship of the National	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
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Spool for releasing and retracting flat conductor cable

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