8mm Forum: Take Up Reel Runs In Reverse

This is topic Take Up Reel Runs In Reverse in forum 8mm Forum at 8mm Forum.

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Posted by Brad Kimball (Member # 5) on April 19, 2011, 09:27 PM:

There's a video on YouTube showing a Chinon projector being demonstrated with a cartoon. It's being shown normally except if you look closely at the take up reel. CLEARLY it's going in reverse. How is this possible?! I know I'm not seeing things. Search under "CHINON 7000 SUPER EIGHT SOUND MOVIE PROJECTOR FILM" - the user is 'iraglauck'. Is it an optical illusion? I know I'm not crazy and the movie he's showing is definitely NOT being run backwards.

Posted by Winbert Hutahaean (Member # 58) on April 19, 2011, 10:18 PM:

Here is the link:

http://www.youtube.com/watch?v=hpGvIdS2o2E

I believe the main belt is twisted (making the 8 shape) resulting the take up reel runs in reserve.

But to play it as a normal projector, you have to spool the film (on take up reel) also in reverse way.

Posted by Steve Klare (Member # 12) on April 19, 2011, 10:32 PM:

Pretty remarkable!

The other Chinons on YouTube have the two reels rotating in the same direction front and back: both clockwise from the control side when projecting forward.

Posted by Gary Crawford (Member # 67) on April 21, 2011, 08:24 AM:

A while back I had a Eumig 810-D on which the the take up arm came apart. Inside are several gears that move the spindle. So I put them back the way I thought they should go...popped the two parts of the arm back together.....and sure enough.....backwards spinning. I had put the gears in wrong.... but eventually got them in the right order and all was well. I doubt that was this machine's problem, but it can happen when non mechanically minded folks like me attempt to make repairs.

Posted by Winbert Hutahaean (Member # 58) on April 21, 2011, 11:37 AM:

quote:
I believe the main belt is twisted (making the 8 shape) resulting the take up reel runs in reserve.

This picture show what I meant.

Picture no. 1 is a normal projector like what I have now.

Picture no. 2, the possibility of the said projector resulting the take up reels runs in reverse.

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