2 3 



FARM MACHINERY 



grind the grain." The cylinders are made adjustable to 

 suit various sizes of corn. 



320. Self-feeder. The purpose of the self-feeder is to 

 carry the ears to the shelling mechanism. The spring 

 shellers are provided with feeder chains, which carry 

 teeth to "end up" the ears and carry them directly to 

 each set of shelling wheels, or to each "hole," as it is 



FIG. 174 lA SIX-HOLE POWER SHELLER 



called. The cylinder sheller uses a double chain con- 

 veyor with slats between, as it is not necessary to end 

 up the ears. In all spring shellers provision must be 

 made for forcing the ears into the holes. This is accom- 

 plished by adding picker-feeding wheels or a beater. 



321. Extension feeders. In shelling corn from large 

 cribs, extension feeders are provided to circumvent the 



