Since I botched the first attempt at the address I am posting this second correct address:  http://www.squidoo.com/pinwheelgenerator  also you can just go to Squidoo.com and punch Pinwheel Generator into the search box.
 A second fe gravity motor design also exists and this is the CORRECT address for the Heavy Float Pump Generator:  Archive.org, then in the "way back" box enter  Godproven.com.  Dates will come up, click Apr06* and it will take you there.  It's slowwwwwwwwwww. Go to pages 59-64.
 This is the first raw design of the HFPG, the final design includes that following improvements: 1)  The water level does not exceed the top on the inner tank's walls.  2)  Cables run from the top on the inner tank's walls, through a pulley attached to the bottom of the upper tank, then out of the main cylinder, down to weights that assist in bringing up the inner tank for refilling.  3)  A rubber liner (a big heavy duty tractor inner tube will work) is connected from the bottom of the inner tank to the inside base of the main cylinder so that the water filled inner tank's weight is depressing the water beneath the inner tank contained within the liner, forcing the water out the exit pipe, through the pelton wheel, and into the upper tank.
  Both designs were given to the world through an effort called the Designs for the World Project.
                                           Regards,
                                                         Russell Lee