On grindifig Maize in the Cob, Ore. 399 



which frame B is fastened in the two upright planks 

 DD. E, the step in which the foot of the spindle F 

 runs in, which step E is regulated by four screws, 

 GGGG. H, the head piece, in which there is an iron 

 screw, similar to the screw in a turning lathe, by which 

 the spindle F is screwed down so as to keep it from 

 raising out of the step E. I, a cast iron piece, which 

 is more fully explained in fig. 2. 



Fig. 2. A represents the inside of the hopper A, in 

 figure 1. E, the step in which the spindle runs. K, 

 the sieve, and L the nut, which is made of cast iron, 

 with a square inch hole through the middle, so as to 

 admit of the spindle F, in fig. 1, which is wrought iron. 

 I, a cast iron piece, with teeth, similar to the teeth in 

 sieve K, which is used in breaking and shelling corn, 

 and grinding bark, but is taken out in breaking plaster 

 of Paris and other hard substances. Also the sieve K, 

 and another applied in the place of K, with teeth in 

 half the length, but of a similar shape. 



When this machine is used for shelling Indian corn, 

 there is a fan underneath the hopper A, similar to the 

 fan of a shelling mill, and put in motion at the same 

 time the machine is, by which the cob is blown away, 

 but in breaking corn in the ear, the fan is put out of 

 gear, and the corn and cob come from it together. 

 This machine, when properly put in motion, will break 

 corn as fast as three pair of four and a half feet stones 

 will grind it ; and will shell four hundred bushels of 

 corn in twelve hours. 



