You sure do find some interesting contraptions in your neck of the woods!
I would guess that if you get those teeth to whirling around that it would chop, mince, slice and dice anything you toss in there.
I have a Sears version of this one built by Troy Bilt. It has a hammer mill set up and it works very well. The side chute weld was repaired once, and was breaking loose again, so I just took it off and replaced it with a solid panel. There were different screens to go on the underside that made it chop stuff up in different sizes, but sadly the screens aren't available. Like biketrax said, these things are loud, but they cut piles of leaves and yard debris down to practically nothing.