Cable Laying as the Signal Corps Does It 



How a cable looks 

 when its covering is 

 removed. To give it 

 strength each cable 

 is composed of a 

 large number of small 

 steel threads wound 

 and twisted and 

 sometimes inter- 

 woven. No cable is 

 stronger than any 

 one of its threads. 

 Were one thread to 

 break, additional 

 strain would fall on 

 threads adjacent to 

 it causing them to 

 break and finally de- 

 stroying the whole 

 structure of the cable 



