But, then again, this description is a little more accurate. Thank you for your reply. I'll have to look into the math. I'm not sure yet, if I'll be able to tackle it.
The one problem, though, is that the helix grows as it curves around the inner boundaries of the circle.
I think, actually, I'll post the drawing I came into contact with, and see if there's anything anyone cares to do with it. I believe the math is beyond me, however the illustration has some interesting features. So, I'll just put it out there in another post.