Hi All,
on youtube there is a video clip of  Dave Q member  Energetic Forum share, explain the working principle of the  Skinner machine 1939... 
                   https://www.youtube.com/watch?v=pw3lpFvuzps&feature=youtu.be

Outstanding..

You think?... what is it that's so great?

Luc


Luc,


The observations of the builder, Dave Quirey, are worthwhile pondering--from EU Forum,  http://www.energeticforum.com/renewable-energy/17195-william-f-skinner-1939-gravity-power-10.html:



William F. Skinner - 1939 Gravity Power
There is no need to attempt to replicate Mr Skinner's device to the last detail.
All that's required is an understanding of the principles involved.
Personally, I believe that they are basically very simple, and I've tried to illustrate them in my schematic drawing.
It is very easy to make an off-centre pivoted weight revolve around its axis.
When the weight is mounted on an inclined shaft, the axis of the shaft only needs to be lifted from its "rest" position, and gravity will apply a turning moment, or torque, via the weight, to the shaft.
The weight can be kept in motion either by turning the upper end of the shaft in a circle (large or small) with an elliptical drive arrangement, or by
simply oscillating a vertical shaft from side to side in its vertical plane.
When I first watched the 1939 movie clip, I noticed both of these methods in
use.
The upper weight being driven by a simple reciprocating drive, and the lower
weight, driven elliptically by the now rotating upper weight.
I have replicated this arrangement very easily with various Meccano models.

An interesting feature of this mechanism is the fact that loading the output drive shaft results in a gravitational response. In other words, if the system is unloaded, the rotating mass is simply acting like a flywheel, storing kinetic energy. Unloaded, the upper weight is chasing the lower.
However, when a load is presented to the output, the upper driving weight starts to overtake the lower weight. This increases the angle of lift and gravity lends a hand. The greater the degree of lift, the greater the gravitational torque produced.
I believe that the combination of leverage and gravitational torque are the keys to extracting over unity power from this device.
I will upload another video to youtube, which I hope will make things abundantly clear :-)

i have built an output stage of this device (Skinner's gravity power) for a test if this device is a feasible one for free energy. It has approx, 50 lbs  of weight with approx. 4 ft of lever (5'7" tall=total height) (all steel) with a flywheel from 2.5 l Subaru engine, the pivot is from a trucks drive shaft, the spinner on top is from Doge GC Idler pulley, the lever or the inline shaft is a natural gas pipe scrap. There is a noticeable difference: It is a little bit harder to turn it through the center shaft connected to the flywheel but is easier to turn through the input lever with a handle that turns 2.5" radius. The centrifugal force seems multiplies the gravitational force of the falling weight. Now I need to build the input stage to couple it with this stage. Right now I'm having fun with it. I'm Learning on how to use the lever, the gravity, centrifugal force and etc.. But one thing I initially observed it seems that it multiplies power to the output shaft through combination of these things. Pls. don't ask me about data. I don't have a way to fully test this contraption yet. The real test will be when I'm done with the input stage with a prime mover and connect a geared  windmill generator to the output. (In which I don't have the budget to buy these parts). All the parts were from scraps.
Also, one thing that I don't know yet is how to post pics and vids for this post.