The Lockridge device is a rotary example of an almost perfect, ideal transformer.
Paul Falstad defines an ideal transformer as being capable of transferring DC (on the following webpage)...
Transformer w/ DC (falstad.com)
I hold that an ideal transformer can do this merely as a side effect since it is essentially something else (although, what it is, I don't know).
Notice that in the following example (simulating my definition), the magnetic coupling is over 100% (188.2% = 1.882) which standard electrical engineering -- and physics -- holds to be impossible...
https://tinyurl.com/correctseriesresistances
In contrast, conventional wisdom defines an ideal transformer as being not capable of losing any power. This almost conforms to my definition. It lacks the additional feature of the generation of AC which could support a lossless condition.
This is one example of my wondering how to simulate the Lockridge device.