That thing is complex! I'm assuming the idea is to first separate the lighter soil from heavy soil by forcing the heavy stuff to collect in the outer chamber and then the lighter stuff is sucked into the inner chamber where it drops out before the air is then sucked through the filter and into the fan. What does the filter look like?
The design for Filter Queen used their dirt container but was a duel cyclonic machine without a shroud. Basically, a cyclone 1000 scrunched into a gold filter queen.
LOL I LOVE the boxes of 3.5 Floppy Disks! I but them a LOT, even if i rarely used them! hopefully that changes today, thanks to something I bought.....