It was constructed by several KeelyNet experimenters and found to WORK just as described. The inventor has been notified of our successes and is very much enthused by such positive feedback. The device is quite simple and has numerous possible configurations. It is based on an anomalous effect relating to the instability of joined magnets. There is a thrust from the magnetic fields causing the moveable roller to push up and over a ramp.
Gravity then causes the roller to move down the decline.
By the time you read this, it will hopefully be in production as a novelty toy and probably have been arranged to rotate a shaft for power transfer from the magnetic repulsion. By all means, do not let this stop you from experimenting with it. We here at KeelyNet want everyone to be aware of this, please experiment with it and share your findings with others. The information is posted at Ohsako's Principle which gives a lot of background in support of the probability for a self running magnetic engine. High 'pressure' on either pole that reduces as you approach the Bloch Wall.