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#15 Reply
Posted by
Stoker
on 13 Apr, 2021 16:27
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Well, you named one example of a belt being tensioned outward. Ya got me!
I'm sure there are others. I worked on a lot of used cars in the 60's and
recall seeing what you described, but never on anything else.
I've seen open, multi-pulley systems in many industrial situations and in almost all older automobiles.
It also looks a bit dangerous. If you need to fuss with the idler-pulley
it is much more dangerous to stick your fingers inside the belting than
outside. Just imagine being startled while your fingers are inside the
loop diddling the idler pulley. With a small steamer, ouch. Anything bigger...
A lever on the back side of the idler arm reaching way beyond the "Baker Fan Pulley" would be a logical way to safely manipulate the set-up ... I simply did not include it in my minimalist sketch.
For intuitiveness, ease of construction, and just to look right....
on a small setup, like a go-cart or minibike, I go with the idler outside
the belt. Now, I have to make a clutched Baker fan. I already have
a idea for my idler-pulley. Maybe my Erector set can help for both.
Look forward to seeing your creation ... perhaps it will be just what Jim is looking for!!!
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