100 



SUBMARINE CABLE LAYING AND REPAIRING. 



in labour results from its use. The welds are more regular and 

 satisfactory than in the old method of hand welding, and the 

 rapidity with which welds are made is unapproachable by any 

 other known method. 



The finished sheathed cable is then drawn oS by a revolving 

 drum and jockey pulley, as described above, in connection 

 with the core-serving machine, the speed of this gear and of 

 the discs of bobbins being adjusted by change wheels to suit 



,-_j^W 



Fig. 47. 



the lay required. Thence it passes through the two serving 

 discs seen at the back of Fig. 45, which put on a substantial 

 covering of canvas tape or yarn and compound. 



Tkis latter machine is shown more clearly in Fig. 48. The 

 sheathed cable passes first over a steam-jacketed tank con- 

 taining compound in a molten state. A wheel or chain revolves 

 in the tank, dipping its lower end in the compound and draw- 

 ing up on its surface a continuous supply, which is collected by 

 an inclined shute of sheet metal (seen in the engraving) and de- 

 livered on the cable as it passes. The wheel or chain elevator 



