One variable arm...

[iacob alex]

.....only,as the "minimal design" of a possible gravity motor,is the performance (one man-one lever),you can enjoy at:   www.youtube.com/watch?v=oKGBkc77sDw   ("Cirque du Soleil").

    So,in my opinion,we have the "open model" on the table,easy to comprehend and test again and again...

    In this manner,we need no more than a single("self-working") variable arm of a lever:simply,it's "quod erat demonstrandum".

   All that we must lay up,is to replace the "actor" with  "something"...you can easy imagine,or see around you.

   One interesting comment,about this performance,you can find on the same site:  "...this makes me believe there might be some magic left in the world..."  ...it can be the gravity motor,inclusively...

      All the best! / Alex

[mscoffman]

IMHO, the above video and this device seem to have operating principles in common.
This seems to work by using an "orbiting" eccentrics with a metal bands driving
generators;

http://pesn.com/2010/12/29/9501746_Child_simple_6-12_kW_gravity_generator_prepping_for_market/

:S:MarkSCoffman

[iacob alex]

.....as a particular topic,is an attempt to imagine a gravity motor with minimum spare parts.

      In this manner,we need only:a fulcrum,two masses  and a lever (one arm is fixed,the opposite is variable).

      The "one man-one lever" exciting show ("Cirque du Soleil") is the superlative expression...or if you like the best "explanatory patent"(open to public...).

      So,now we have a real starting point to imagine a gravity motor...or as you like to call by name... 

      If we replace the acrobat with a "black-box",all that we need is to imagine a variable arm "procedure".

      About the "last news" from   UK   (  www.freeenergynews.com  ) ,take a look at "Gravity Motors" and compare with some "old news",on the same site.

      The life's show is a wonderfully art stage:from real touching actors,performers ("Cirque du Soleil") to  all kind of imaginary ones(let's say inventors...)....we can feel it as a tragedy,but we can think it as a a comedy.Try to stay in the middle...

         All the best! / Alex
       

[iacob alex]

.....is a general manner to play gravity balance ( see weighting machines,the scale...) , or unbalance ( why not...a continuous one?...) , if you take a look at :
     www.quickgetaway.com/technique/9stages/images/seesaw.gif
     So , we can play balance / unbalance with a moving mass , a moving fulcrum , or the one and the other...we have a diversity of starting points.
         Al_ex

[iacob alex]

.....at : https://m.youtube.com/watch?v=_gAchuS8SyU
It's the simplicity of an intended "automatic", swinging seesaw ( variable/oscillatory leverage) with an active driver and a pasive ("sleeping") follower , playing a continuous gravity unbalance (torque difference )  on the same side of the fulcrum.
      Al_ex