As shown in Figure 93^, an actuation system would 

 be required to transfer the load from one sheave 

 to the other. 



3. Single sheave with lift-over device 



The cable could be passed by a single sheave, about 

 seven feet in diameter ,, straddled by a segment of a 

 larger sheave functioning as a cam (Figure 9b) . On 

 the periphery of the cam would be a receptacle for 

 the module, at each end of which a groove would sup- 

 port the cable in such a way that the axis of the 

 cable near the module would coincide with the axis 

 of the module itself. The cable would be led about 

 a segment of decreasing radius so that it would 

 exit from the cam on a line tangent to the periphery 

 of the sheave. The sequence of action required to 

 lift a module over the sheave is shown in Figure 9b. 

 An actuator would be required to engage the cam. 



« 



STORAGE 



As discussed in (2) , storage could be accranplished in 

 several ways. Cable sections could be decoupled at each 

 module and the cable layed out in deck wells or reeled onto 

 a multiplicity of small drums. Alternatively, it might be 

 stored as a unit in a well or on a single drum where the 

 problem of fleeting the module-encumbered cable onto the 

 storage reel could be avoided by traversing the reel rela- 

 tive to the winch. 



27 



