192 



MECIIAXICS. 



the cob by rows of teeth revolving in a concave bed and 



Fig. S17. 



Fig. 218. 



Horse-power Com Sheller. 

 set spirally, thus carrying the cobs along and ejecting 

 them from the opposite end. 



For shelling corn in large quantities, powerful machines 

 driven by horses or steam are required. An excellent 

 sheller for this i^urposo is made by Richards^ of Chicago. 

 The corn is shoveled directly from the wagon or crib in- 

 to the hopper, and requires no extra feeders, or hands, 

 to keep the machine from choking. It is built wholly 



of iron, combining 

 strength and dura- 

 bility. The shellers 

 are made of different 

 sizes requiring from 

 two to twelve horse- 

 power. The former 

 will shell one bushel, 

 Bichards' Corn Shdler. and the latter ten 



bushels per minute. The cost varies from $175 to $475. 

 The following is a description of the working part. 



The shelling cylinder is made of heavy rods of wrought 

 iron, placed equidistant, presenting a corrugated surface, 

 which cannot v/ear smooth. Within this, a revolving iron 



