Gravity motor motto...

[iacob alex]

.....as a visual suggestion ("motto..." ) , when gravity is free to perform his main feature ( acceleration...) , at :
https://plus.google.com/photos/photo/107130247487186913773/6014942371497630114
  ...if we intend to imagine a (self) powered device...
     Al_ex

[iacob alex]

.....if we play a greater gravity free fall ( PE into KE...) , rotational inertia in-out storage and (alternating "self" switching) variable arm ,or a gravity continuous unbalanced leverage (make a search on "Google"-images...).
    Al_ex

[iacob alex]

.....can be a "repetitive gravity discharge" of a natural energy storage ( gravity potential difference...as a mechanical "battery")
.....due to a continuous torque difference , on the are side of the fulcrum
.....as/alike an alternating continuous "descending" gravity "wave"
.....playing the full free fall of an inverted pendulum ( "equivalence"...)
.....of a possible "self" variable leverage.
      Simply , we arrange gravity free fall as incoming pendular "pulsed extraction waves" ( dc into ac...it's like "wavering" gravity , nothing more...) at a "cosmic shore"...why not?!
      Take a look at :
      https://en.m.wikipedia.org/wiki/Gravity_battery
      www.geocities.ws/iacob_alex/Some_Drafts/text028.JPG
      www.geocities.ws/iacob_alex/Some_Drafts/text048.jpg
      Al_ex

[iacob alex]

....."packing /wrapping" gravity free fall of a simple elastic pendulum arrangement ...if we start with a visual/real suggestion : a repetitive beach incoming wave . Take a look  at :
      www.bowl4fun.com/ron/tip41_files/tip41.htm
.....with the ending point higher than the starting point ...a clear visible hint to loop the loop in some manner ( descending , tumbling...or your inspiration ).
      Al_ex

[iacob alex]

.....as a self-rotating (tumbling , throwing oneself , self accelerating ) "springhtly mass" system ( spring-free sliding mass-spring ) , playing a continuous  gravity variable unbalance and rotational inertia .
     This system is as a "vivid macro-copy" of the atomic concept of mass , but...if is self-accelerating ( see the test...) , we need a loop control...as the next step.
Al_ex