The puzzler got me thinking about flat fan belts. They are used today where ever ultra high speed and low friction are required. (They are the blades in bandsaws, for example.) Ever wonder about the contour of the pulley face, and what keeps the flat belt centered on the pulley? For the curious, t…

There’s no way the mobius strip answer would work. The belt would not rotate around leaving the twist in one spot between pulleys, but the tiwst would rotate with the belt and go over the pulleys, doing nothing to extend the life of the belt. Now if something could be engineered in to keep the twist…

nickpang — "There's no way the mobius strip answer would work. The belt would not rotate around leaving the twist in one spot between pulleys, but the tiwst would rotate with the belt and go over the pulleys"And you know this how? Gut feel? Twisted belts were often used on old farm equipment, either…

What about the fact you are now turning the accessory backwards in the case of a water pump this would be boooogus

The accessory gets turned backwards with a Mobius twist in the belt? I don’t think this is the case. Maybe a misunderstanding about the nature of the Mobius half-twist. The Mobius half-twist is in the belt itself, it’s not giving a regular (non-Mobius) belt a twisted (figure 8) belt-path. Wi…

I proposed a figure 8 solution and can’t understand why it wouldn’t work. I just verified it with 2 pencils and a flat rubber band. The belt would Be contacted on both sides and the pulleys are driven in the same direction. Can someone explain why they couldn’t manufacture the belt without makin…

I should correct the last post. It was NOT a figure 8 that I proposed. Of course that would reverse the rotation of the pulleys. It was simply a half-twist of a straight belt, leaving one side in contact with the, say, top pulley, with the other side in contact with the bottom pulley. Any comment…

@nickpang , the twist might move slightly over time but could never get beyond either of the pulleys so it would be a stable system. The odds are it would remain halfway between both pulleys since that is the position of least torsion and resistance. @Mechaniker ’s link mentions putting the twist on …

Gentlemen, Ladies, see the attached. [image] This was the norm intextile mills for a generation or more…much more. They were flat leather belts.

RE the fan belt puzzler

The Show

Barkydog February 12, 2012, 4:34am 16

The mobious twist was all i could come up with,

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RE the fan belt puzzler

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