THRESHING WITH SPECIALLY EQUIPPED SEPARATOR. 163 



be much sand or dirt to be screened out, applying the same 

 remedy will cause the peas to be dropped farther rearward 

 and allow the dirt more chance to get through the screen. 

 Returning peas to the cylinder with the tailings is apt to 

 crack them, and therefore, the cleaned peas will contain 

 fewer split ones if the tailings be kept separate. This may 

 be done by opening the bottom of the tailings-elevator and 

 allowing them to run on the ground. Afterwards they may 

 be run through the machine while "cleaning up." 



Threshing Beans. All that has been said above,, in 

 regard to threshing peas, applies equally well to threshing 

 the ordinary white navy beans, and also the larger varie- 

 ties, except, that for the latter, if common sieves be used, 

 the three-quarter-inch lip, F, should be used in place of 

 the three-eighths-inch lip sieve, G, in the shoe. 



Threshing Soy Beans. Soy beans are difficult to knock 

 out of the pods, and are so hard that they are not easily 

 ' cracked. Therefore, they can best be threshed with a sepa- 

 rator adjusted and speeded as for wheat. 



Special Cylinders for Peas and Beans. There are local- 

 ities in which a separator may be kept constantly threshing 

 peas or beans for several days or even weeks at a time. 

 For such machines, it is often advisable to obtain a special 

 cylinder with the teeth spaced for this work. When so 

 equipped, a "Case" separator will do better work than it 

 would do with the regular cylinder. In fact, its work is then 

 equal to that of the machines designed especially for hulling 



