Now that Dad has retired he's doing some stuff around the farm that I've wanted to do for awhile. When I went home for Thanksgiving he had cleaned up the old corn husker from Grandma's farm. He'd also grown some indian corn to run through it.
Just drop the ears of corn down the trough on top and turn the crank. The kernels drop out the bottom and the empty cob comes out that hole in the front.
See? Corn off the cob.
note: be sure to let the corn dry before running it through the corn husker or you'll have creamed corn dropping out the bottom.