William F. Skinner produced a device that takes a 1/8 horse motor and multiplies the output 1200% here is footage from 1939.
William uses the power of the model to work a 12 foot lathe that cuts ribbons of steel. The second video
shows the reverse engineered details of William Frank Skinner’s 1939 Gravity Power Machine.
Aaron Murakami is reverse engineering the device and has gotten quite far in this. The way skinner had built his device was to have 4 counter oscillating weights so that they balanced each other out.
1939 Gravity Power Reverse Engineering Details FULL VERSION