Murakami Elliptical Drive

There are various mechanisms that can cause the top of the input lever of the 1939 Gravity Power machine by William F. Skinner to move in an elliptical orbit.

I already put details on how William Skinner was doing it himself in my video 1939 Gravity Power Reverse Engineering Details FULL VERSION

A simplified method that I came up with is by using a tilted wheel with a connection offset from center. Although from it’s own plane, it is a full circle, on the horizontal plane, it will trace an ellipse.

Here is what I came up with…