254 



WIUK ROPE TESTS. 



as the rope itself. In nearly all cases when subjected to 

 loads in a testing machine the ropes are pulled out of the 

 sockets without breaking. 



| When the rope which is to be tested has had its 

 ends prepared in the manner described, the test may at once 

 be carried out. In order to prevent any give or settling in 

 the socket when the load comes to be applied, it is well, 



FIG. 123. Fastening in which White FIG. 124. Rouleaux' 

 Metal Matrix is used. Socket. 



if possible, to cast the white metal matrices in the actual 

 sockets which are to be used in the testing machine. Any 

 wrapping which has been put upon the rope during its 

 preparation must be removed. During the progress of the 

 test measurements of any extension that takes place in the 

 rope make be taken. The most important point to 

 observe is the load at which the specimen actually fails. 

 This failure, in a satisfactory test, takes place by a rupture 



