If I were to build a pendulum with the intention of having it be self repeating, this is the way I would do it. I am confident it will work as it does follow engineered guidelines that conform to accepted principles in physics.
 When the pendulum's weight starts it's swing downwards, it develops what is known as torque. Torque is an essential requirement in generating force. The definition of torque according to Merriam Webster.com "
 1: a force that produces or tends to produce rotation or torsion <an automobile engine delivers torque to the drive shaft>; also : a measure of the effectiveness of such a force that consists of the product of the force and the perpendicular distance from the line of action of the force to the axis of rotation   2 : a turning or twisting force      This is what the swing arm on a pendulum does, it produces torque or a twisting force. This force can be used to operate a hoist. And if the swing arm of the pendulum extends beyond it's fulcrum, then it can also use leverage to increase the force developed by torque. With the diagram I am attaching, the numbers 1.8 and 18 are to illustrate a ratio of 10:1. This means that the torque the swing arm is generating is being converted into power which can be up to 10 times the torque being developed. Of course, this also means that the hoist will have 1/10th the travel of the swing arm.  When this force is used to lift scissors, if the scissors are opened to a spread of 90 degrees (2 45 degree angles), then the mathematical relationship is an opening of 70% with a lift of 60% on the primary (long levers) scissors. The short scissors (top and bottom) would add another 60% of the length of one short lever. This would give a basic ratio of 120% lift to a sideways movement of 70%. That would correspond with an efficiency rating of about 150% or being capable of producing 50% more work than expected.  And of course, when the swing arm releases the hoist mechanism, then a drum would then support the weight that was lifted by the hoist. When the weight causes the drum to rotate, it would increase the velocity of the pendulums swing arm. Excess energy could perform other work if desired, such as rotating a wheel type housing.  With the hoist mechanism, it would need to be off set to one side. If rotating counter clockwise, then the offset would need to be to the left. This would give it a different rotation than the extension of the swing arm on the pendulum, otherwise, it would not release.  Of course, most people realise that a pendulums greatest potential for inertia is directly beneath it's fulcrum. This is because it's inertia would be at a 90 degree angle to the lever supporting it's fulcrum. If the angle of the lever were not perpindicular to the force of gravity, then it's greatest point of inertia would change relative to a 90 degree plane to the lever supporting it's fulcrum.                                                                   Jim
 
edited to add; @AB Hammer, just a friendly reminder that you are free to do what ever you like as long as it does not involve me 
 
@ e1; the overunity occurs when the second scissors mirrors the movement of the top or first scissors. This is because no extra force is required to operate the second scissors. What might happen is that in accelerating the weight being hoisted, the swing of the pendulum might be slowed. If so, what is known is that the most effcient place to accelerate the pendulum form an external source is as it is passing bottom center. This is because the pendulum's weight would be moving perpindicular to gravity's force.
 In reality, the hoisting of a weight might not happen quick enough to be of consequence. And with only one extra movement, as long as it's acceleration is less than 9.87 m/s/s, it might not effect the motion of the pendulum as it would be operating beneath the potential acceleration of the pendulum.

   Hi J-874!
Your manner is "Why make simple,when you can make complex?!".
 
The opposite approach can be "Why make complex,if you can make simple?!".
 
Take a look at:  http://www.youtube.com/watch?v=FQ02MjqBk7s  (from 040 sec to 060 sec  ...only).
 
It's a simple variable pendulum...a first step to find the way to a possible "self".
 
     All the best! / Alex

   Alex,
 For those who have experience with mechanics, this is a simple idea.
Unfortunately for people like you and AB Hammer, it seems it is your faith you rely on.
Myself, I do not mind working for what ever I might accomplish. Of course, this
does require me to learn otherwise how would I know what I was doing ?

LOL Jim

Faith in skill and knowledge and I am sue Alex faith will be similar.

By the way Jim. Stop sending me personal messages.  Also I have no need to do this design you show.

  Well speak of the devil Alan. I was just thinking this morning how you used to tell me I didn't want to walk down this path among other things. Why I had my account deleted.
Truth is, my dad wants me to do it because he knows what training and experience I have. And unlike you, he's not hurting for the money either.
 As for this idea, it's Tom's. You know, webby1. The one you told him you would built and then tell him what to expect. I can show you the post if you like   

No Jim

 I never said I would build, I said I have done an experiment for someone else and I would try to find the video and email it to him. I never received an email. So no action needed.

 Now please quit playing deceptive politics and stop calling for me.  I have no interest in what you are doing. IMO you are on a dead end street with yours and others ideas at this time.

Alan

   Alan,
 I think it is funny your credeibility is based on criticising other people.
You have no respect for what it takes to accomplish something. After all,
you're not broke, your engineering is.
 But I think it is what you once told me, only you can make me credible. The why
you have always attacked me calling it criticism. You never could follow the math
because that actually takes time to learn. Something a lazy man won't do.
 The reality is this idea of Tom's could work and it might lead to a Bessler wheel.
But for you, you want recognotion for being a nuisance. Er, I mean for being a
leader while you're bringing up the rear.
 
 edited to add, @All, this is what Alan calls credible, harasing a person who is under going ctreatment for cancer and building at the same time.
  @bessler,
 Using the code I tested, it has helped me to modify the design I am building. It is coming along quite nicely.
 With Alan, he has put himself in a bad position. If he were a smarter man, he would get back to discussing builds or other things, but not what is being discussed.
 He has used my having seizures against me. And enough people in here supported him. This is something they should think about. The only one who is going to look bad is Alan. And he is foolish enough to keep this senseless argument going. Don't be like him, please.   (http://www.overunity.com/Smileys/default/smiley.gif)
 I'd like to get back to my current build, if possible.

  Alan had turned a build I was doing into one about his opinion. If he ever took the time to learn something or do an actual build, then he would have something worthwhile to talk about. And for whatever Alan says about Bessler 007, he is no better.
He is just more clever.
that was reply 192 on page 13. And it is such builds that I have come to understand what I have. What I was working on is the 4 weighted wheel which I posted in it's own thread.

@ all

This is from someone who has been banned from many forums for his harassment and lies.  Also as you can see he is acting like an internet stalker. IMO his main goal is to harass me to the point of giving away what I know.  I have to take Jim is a credit thief in waiting and I am one of his target.  why else would he harass me so?


Jim Lindgaard! Stop your negative add campaign.

Alan

   Alan,
 To make you happy, I will sop working on anything to do with perpetual motion.
Since you are one of the best armorers and great working with your hands, I am sure you won't mind demonstrating your skills by helping these guys test THEIR ideas.

                                                                                                Bye

ps, there is that gal that likes me and she sure is a heck of a lot sweeter than you