Torque of the town | Learning about torque converters | Articles

I think that incremented some of my (reluctant) automatic knowledge, but it needed pictures. Centerline on what axis? What’s the overall shape internally? Shape of the impeller? Of the turbine? of the stator? Of their fins? Arrows for fluid flow?

How does torque multiplication work? I assume it’s something like converting levers or gears to a hydraulic context, but outside of positive displacement hydraulics that’s not intuitive.

It’s a topic that’s not well covered, and I’m thankful for a stab at it that improved my understanding, but the better-than-average explanation makes the bits I still don’t get stand out all the more!

Please explain the switch pitch converters of the late 60s GM cars , 

These seemed like a great idea to basically have 2  converter styles at once ( if I understand the principles)
 

Thanks