Flip-flop wheel...

[iacob alex]

.....at :  http://www.geocities.ws/iacob_alex/Some_Drafts/text009.jpg        / Al_ex

   

[iacob alex]

.....at :  http://www.geocities.ws/iacob_alex/Some_Drafts/text009.jpg   ...you can reverse the "spur"     / Al_ex

   

[iacob alex]

.....can be considered a (simplified) "derivative" of an "old" topic (2009) ,namely "A simplified MT13...".
As a matter of fact , we play variable/oscillatory leverage , due to gravity (fall,"flow") unbalance and the in-out interplay with inertia.
            Al_ex

[iacob alex]

...02 , at : www.geocities.ws/iacob_alex/Some_Drafts/text010.jpg
        Al_ex

[iacob alex]

.....as a very old proposal of an automatist and clockmaker ( Henri Maillardet ) , at :
     www.energythic.com/view.php?node=264
     Maillardet plays the variable arm in two points , due to the ( self ) triggering action of gravity.
     A simplified design , at : www.geocities.ws/iacob_alex/Some_Drafts/text022.JPG
     Al_ex