Here's part of an email I sent to Antcufaalb. We're still working out how to get the projectors modified - stay tuned.
"Figured I'd give you a heads-up on what's going on with the projectors. I got the Singer/Graflex last week, and have been mulling over how to convert it to a telecine. It actually is pretty nice, as it has adjustable tension on the gate - stronger for more warped films, less strong for flat films. Also, it is a 3 blade, and one of the blades is marked "Frame Change," and it is the one that covers the frame while it is being changed. I think I could get rid of the other two blades and be good as far as that is concerned, and that third blade (or the axle on which it revolves) would be a good candidate for the sensor unit. Also, the light is pretty easy to get to, so that is good. Now I just have to figure out what mechanics to get rid of in order to make it more streamlined (and easier to work with). I'm going to probably need a smaller motor, and probably DC, as I can't see any reason for a powerful AC motor. I'll widen the gate on all sides and get an LED in there, and should be good that way.