214 



SCIENCE OF SUCCESSFUL THRESHING 



but will not pull in so tightly as to tear the belt. Space 

 the holes equally across the belt, leaving the outside holes 

 far enough (about one-half inch), from the edge of the 

 belt to prevent the possibility of their tearing out. Fig. 51 



FIG. 51. SPACING OF HOLES IN LEATHER BELTS. 



shows the position of the holes for the common widths of 

 belts. In a leather belt the holes may be quite near the 

 end ( l /2 to $/% inch), without tearing out, and when so 

 placed the belt will pass smoothly over the pulleys. A belt 

 is much more apt to break or tear between the holes than 

 it is to tear from the holes to the end. 



The belt of a stacker-web laced by turning up the 

 ends of the belt is shown by A and B of Fig. 52. Any 



FIG. 52. BELT LACING WITH ENDS TURNED UP. 



