Originally Posted by ENGLISH!
I would think that anything involving the different directions of spin of any two(2) 'circular' objects like a gear a 'gear effect' or 'gearing'.
Gears have teeth, so they don't rub against each other. That's why the "gearing english" metaphor is used - it describes exactly enough outside
english so the CB's surface rolls across the OB's surface like a ball rolling across the table with no slipping, sliding or rubbing (like two gears meshing).
By the way, there's a simple way to judge the amount of outside spin that will be gearing english for any cut angle (or perfect running english on a rail): visualize the point on the CB that's opposite the CB/OB (or CB/rail) contact point, then offset the tip a little less than halfway (about 40%) to that CB point. Here's a drawing illustrating the method for running english on a rail: