Self-moving hoop...

[iacob alex]

       
       Hi Jim!
 
I must confess you,that "Trebuchet pendulum"(..048...),is a special case.

Take a look at   www.hp-gramatke.net/perpetuum/index.htm   

Here,again at "Typical asymmetric Wheel".

I agree,it's not a working model.

Anyway? Let's see...

-we dismantle the wheel,but not two opposite spokes : we have a lever,a "minimal" wheel ,only.

-the two masses (red and blue on my design) are equal

-due to this change,we can  play the "classic" long arm-short arm,on the same side of the fulcrum

-the blue mass is fixed : has a medium,middle size arm

-the red mass is mobile :changes as a longer or shorter arm face to blue's medium arm

-the key problem appears:how to get a "self" for this changing size arm?

When the red mass is in the bottom position,it changes easy,without any "help" as a smaller arm.

The only one problem appears near to top position:it must become greater than the blue's mass medium arm.

Here the red mass needs some "inner" help,so to topple up.

"Inner" help =some push,some stored power from a continuous,uninterrupted free fall of ~340 degrees(it seems strange ,but it's real!).

  The next ~(20-30) degrees(to make the loop),we must topple-up the red mass with a greater arm, than that of the blue mass.

My proposal is to use a trebuchet(or trampoline...) effect,so to jump up the red mass,as a longer then blue's medium arm.

If we add a simple rotational storage system(the great blue mass/a heavy hub),we can imitate the electrical capacitor process :long charge-short discharge of the unbalance(arm difference).

You can see a small arrow -like arm :it works like " push-button".

Sorry that ,now and here in US,I am out of possibilities to make some tests...I am living on rent space. 

In my opinion the model has a simplicity, that asks for some easy at hand-put in working order.

For the moment,our calculus in nonlinearty,is out of question...we can set to rights,as our ancestors in the Middle-Age.

Thanks,for your suggestion ,regarding the "fixed" mass:we can play this model in a variety of shapes and dimensions.
 
By the way,this is among others, my favorite model:it has a certain charm  of a long history.

                 All the bests! / Alex

[iacob alex]

         Hi P-Motion !

  Thanks for your suggestion:I decided to enter into reality.

  I can't build and test my designs,as I said ,because living in a rented space here in Costa Mesa/CA

  So ,on You Tube ,I find a handicraft person, and I made a simple proposal to make a team .

  Now,let's see the developments of this opening move...

        All the Bests ! / Alex

[iacob alex]

         Hi Jim !

  As I said,I'm living on a rented space,with no possibilities to test my designs.

  More : the next week I will change the address.

  So,about your letter,depending on your" hurry ",I can give the actual of the future  "to" location.

  You intend to use wood material...Why?

   It reminds me others "clumsy" models...including Evert's.

   By the way,you must visit    www.evert.de     it's an useful site ,to learn so much about the topic of this section-forum.
   
   For instance,you can see his wooden model at    www.evert.de/eft730e.htm

   Evert is a brilliant german mind,but...as himself recognizes not so handicraft.It happens...he is involved in a huge theoretical domain.

   His  designs that uses an asymmetic pendulum(a bended lever,nothing more...) was a source of inspiration for some of my models. For me,he was as an excellent teacher.

       All the Bests! / Alex

[iacob alex]

            Hi Jim !

   When we study the "anatomy"  of  a new process ,the best way is to start with the "skeleton" idea.

   For the topic of this forum/gravity powered devices , in my opinion ,the central word is "asymmetry".

   So ,when I visited   www.evert.de   it was easy for me, to select some details on this line.

   A line/bar and a fulcrum/pivot/support gives us a lever.

   A  bended line/bar (not in the middle...) and a fulcrum,gives us an asymmetric pendulum.

   If you practice any kind of abstract work (science,art,everyday life...),the first rule is "less is more" :this is the  starting point.

   On and around the "skeleton",we can build as in a real world...if not,that's science-fiction.

   The world is open for everybody :the problem is "know-how"... we see and understand the things.

   The "clumsy" expression was intended about wood material.

   In a public domain,like internet an  idea becomes a  common  "property".

         All the Bests! / Alex

[iacob alex]

       Hi Jim !

As I understand,you are not in your best condition...so,as in a game,maybe is better to take a time-out.

An internet forum,it's a virtual swap space,where money is out of discussion,normally,but... if we remind the human condition,it's natural to take care about our pockets,you know...only if you have something inside

Really,I am not interested so much about gravity powered devices...it was as a training  to develop possible inertial rotors from my old "gallery".

The point of interest was the common properties of these domains(energy&transport),that in my opinion ,will  open unimaginable opportunities in the near future...when people will be conscious of them.

I suggest you,that after the rest period,to begin with a simple test of your ideas,so that people of this forum can appreciate you.

So,take care of you.
                                        All the Bests! / Alex