62 LEATHER BELTING 



two vertical rolls and against the third roll as shown. On 

 revolving the crank, a helical needle inserted in the corruga- 

 tions as shown at B, is carried through the end of the belt, 

 making a series of holes across the belt. A coiled wire lacing 

 is next inserted in the corrugations and by turning the crank 

 is carried through the perforations in the belt as shown at 

 C, Fig. 17. The coils are then flattened and forced into the 

 belt as at D. The ends of the wire lacing should be bent 

 back and driven into the belt so that they will not injure 

 the hands when handling the belt. Each end of the belt is 

 laced and the wire loops in the two ends are joined by means 

 of a rawhide pin inserted between them as shown at E. 

 This pin should not be allowed to project beyond the edges 

 of the belt, but should be cut off about | in. short on each side. 

 The strength of a joint made in the above fashion is stated by 

 the makers of the machine to be about 700 Ib. per lineal inch 

 of joint. For belts that are to be used in damp places brass, 

 instead of steel, wire is recommended. 



