THRESHING WITH REGULARLY EQUIPPED SEPARATOR. 157 



passing through the sieve, will lift the chaff and enable the 

 sieve to handle the large amount of chaff that comes to it in 

 barley threshing. With brittle barley straw, the regular 

 straw-rack sometimes shakes too much straw through to the 

 conveyor. In this case, as in threshing "headings," the 

 straw-rack should be converted into the Oregon style, men- 

 tioned heretofore. When the separator is fitted with com- 

 mon sieves, the two-inch lip, D, or the one and one-quarter- 

 inch lip, E, should be used as a chaffer and the three- 

 eighths-inch lip-sieve, G, in the second notch and fourth 

 hole as a shoe-sieve. Any of the screens mentioned for 

 wheat are suitable for barley. 



Threshing Flax. The thresherman should devote some 

 study to the peculiarities of flax if he wishes to do a nice 



v- 



job of threshing. Operators of some makes of separators 

 have great difficulty in threshing flax on account of the straw 

 being composed of tow, and therefore, having great tendency 

 to wind on every revolving thing it encounters. The "Case" 

 separator, having no rotary parts on which flax straw can 

 wind, has always had an advantage in this respect. Flax is 

 usually unbound, and on separators equipped with feeders, 

 the pitchers are apt to throw it upon the feeder-carrier in 

 large forkfuls. The straw, on the contrary, should be fed 

 evenly to the cylinder, for if allowed to pass into the ma- 

 chine in large bunches, it will "slug" the motion down and 

 prevent all parts of the separator from doing good work. 

 When green or damp, it requires close work on the part of 



