KD7HB fired this volley in news:f31366a2-f42a-430a-
:

Lloyd, look carefully! There is a link at both ends of the machine.
One appears to be 90 degrees out of phase with the camera link. Just
like the old steam locomotives! Ingenious!


Ah... I see it now. I wondered how the other link could clear the crank
arm, but I see that the handle turns the link, not the roller.

Oh, well, my _idea_ was unique, anyway G.

LLoyd