Dave who built the most impressive DIY PowerPallet we have seen to date, shared with us a picture of his nice silo with a well implemented cone bottom silo reclaim system. The mechanism is but a universal joint at the bottom that rotates along the bottom of the cone that breaks up bridges in the hopper space above. The component also incorporates an air lock port at the bottom to prevent air flow back into the hopper chamber.
The documentation for the mechanism is here: http://www.mawera.co...on_englisch.pdf
Early pictures of Daves DIY PowerPallet located here: http://wiki.gekgasif...Y%20PowerPallet
thanks for sharing Dave!