Sectional View of Cob Hopper and Crusher.

The cob hopper is so formed as to invite the cob to fall at one end and slide at the other into the snail-formed case around the "drunken" circular saws, which cut the cobs into three or four sections; then the teeth on their sides saw the sections fine and they pass through the mill with the corn. The slanting side of the cob hopper is laid low so as to have the saws jar the cobs at the lower end of the hopper to bring them down without bridging.
On the up cut the saws are covered by the case to prevent their throwing grain out of the mill to the floor.

Cob Crusher or "Drunken Saw"