The hollow shaft that the inner sphere is mounted to carries the wiring from the inner hemispheres to the commutator. Wiring is rather simple in that both apex wires are connected and both equatorial wires are connected together. These wires are then fed through the hollow shaft and connected to the commutator sections to reverse the polarity as the shaft is rotated. The external sphere wiring is accomplished in the same manner and attached to a DC source.
The brushes are wired to a DC source and the commutator is designed to rotate until the proper placement is achieved for the most efficient position for operation and then locked into place. Once powered a slight rotation to start the motor is required and without the use of heavy metal cores or stators will outperform most heavy motors.
To convert to a generator the shaft at the left of the unit is attached to a rotational force such as a water wheel, windmill, motor etc. and a small DC force is applied to the stator. During an experiment carried out in the 70's a 32 volt aircraft starter motor was attached to the unit and accelerated to 1800 rpm. Once up to speed a 1.5 volt battery voltage was applied to the stator and a DC meter at the output end shot off scale and the copper commutator segments melted under the output.
No further experimentation has not been done since other projects became a much higher priority.
I would hope that someone pick up this project where I left off and will wish you nothing but success.