Very Gracious of you and excepted.
At first i to was taken by the drawing many years ago and even made a small device with resistance wire but it got very hot in 5 minutes of usage.
upon further research i noticed the patent said, and i Quote; "R" the resistance is drawn in it's elementary manor to facilitate the Comprehension of the entire system." I then noticed the wire in the R section was wavy like wire loops with this and it being in it's elementary manor it was quite evident it was not a resistor network. given the fact of this and resistance creates a lot of heat and losses there was not doubt it was an inductor as there is no way a Physics Professor would use a heat death part in his device..
So i began researching Inductors, Self Inductance and the Lenz Law and low and behold i came across this years ago in Wikipedia, "Any alteration to a circuit which increases the flux (total magnetic field) through the circuit produced by a given current increases the inductance, because inductance is also equal to the ratio of magnetic flux to current"
"The inductance of a coil can be increased by placing a magnetic core of ferromagnetic material in the hole in the center. The magnetic field of the coil magnetizes the material of the core, aligning its magnetic domains, and the magnetic field of the core adds to that of the coil, increasing the flux through the coil. This is called a ferromagnetic core inductor. A magnetic core can increase the inductance of a coil by thousands of times..
There are many other examples i can post but i am sure you get the drift as i am sure i already posted them.
I then began to do bench tests to verify this very Phenomenon and Bingo ! I found that a moving positive brush will in fact change the current on regular basis if and only if the brush contact stays in motion.
this is called magnetic flux linking that changes with the brush movement that add or subtracts winding's to that side of the brush. with each magnetic link it changes the intensity of the magnetic field thus in complete compliance with Faraday's Laws of Induction to occur as all it stated is a change in magnetic field.
in this case it will oppose the original current flow and amplified by the magnetic iron core. using thick wire you will achieve a very lossless near perfect Inductor that store and releases potential exactly when needed.
With AC the current change causes induction to occur with DC the change in the circuit causes the Induction to occur.
I rest my case.
as soon as my brush holder is done and built it, i will release a video that shows the world just what an active Inductor can do. with lights replacing the Primaries for a good visual representation in complete Unison.