226 



FARM MACHINERY 



312. The shredder head may be made up of several 

 plates of steel of the rip-saw type tooth. These plates 

 are so warped or bent that for every revolution of the 

 head only two teeth should pass over the same point in 

 the stock. The teeth should be offset enough to cut off 

 a fairly good slice. In some shredders there are no 

 cutting plates. The shredder head is set so close to the 

 snapping rolls that as the stalks come through it tears 

 them to pieces. Some machines are also provided with a 

 revolving cutter bar. 



Many machines have an interchangeable shredder and 

 cutter head. By using the cutter head the same machine 

 may be used in cutting straw or green fodder silage. The 

 shredder head is also made for some machines much like 

 a thresher cylinder, except the teeth are shorter and 

 sharper. 



313. Shelled corn separating device. One of the essen- 

 tial features of a shredder is to be able to separate all 

 shelled corn from the shredded fodder. The best means 

 for this is to have some form of beater agitating the 

 shredded product in the air, and thereby allowing the 

 shelled corn to rattle through. The' corn then falls 

 through a sieve and is conveyed to a bagger or wagon 

 elevator. 



314. Size. The size of the husker and shredder is 

 usually denoted by the number of husking rolls, as a 

 4-, 8-, or lo-roll machine. 



315. Capacity. The capacity of a husker and shredder 

 is a variable quantity, as all manufacturers will state. It 

 is somewhat difficult to reach a definite basis upon which 

 to rate capacity. The number of acres a day or the num- 

 ber of bushels a day will not state accurately the amount 

 of work performed. In general it may be safe to state 



