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If a regular loo roll is partially unrolled, and the unrolled
end
hangs down, the weight of the paper can cause the whole
roll
to unwind spontaneously.
The solution is to have the hole in the middle off-centre
with
respect to the rest of the roll.
Given that loo paper is quite soft
and squishy, it should be
possible to vary the tension in the winding-on machine
(that
makes the rolls), in such a way that one side of the roll is
quite loose, while the opposite side is quite tight, thereby
placing the central roll off-centre.
If so, the roll will naturally hang with the less-tightly-
packed
side downmost (since more material lies further from the
centre), and will not spontaneously uncoil all over the
bathroom floor.
I have nothing else to add on this subject.
lou rawls
http://en.wikipedia.org/wiki/Lou_Rawls
Bet they kidded him about this in jolly old... [popbottle, Mar 24 2015]
[link]
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I feel like I have seen oval shaped central cylinders for tp rolls. I feel also some inchoate visceral hatred towards these oval cylinders. Could it be they were designed such that one can only pull one square of paper off of them at a time, French style? |
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If the holders were all positioned at floor level, and you
had to pull the paper upwards towards you, the problem
you identify could never exist. |
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They're all oval to some degree out here in the colonies, especially after granpappy sits on one. And I reckon we ain't got such smooth loo roller bearings as they do at Westminster, much more like a tree branch sticking thru the wall. |
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I don't think I've ever had a roll spontaneously unroll. Sure
it's spontaneous? I had a lot more "spontaneous" things
happen when I had a dog. Anyhow, a 3-5 mm spot of that
glue they use on the end of the roll could be used to fasten
a fixed point on the circumference, decreasing radius in
that region. |
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Why not just wind the paper on a pentagonal core ? |
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I am now investigating the difficulty and expense of a roller-
bearing toilet roll holder. |
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Roller slightly of center seems to work, but is annoying as the sheet breaks off when ever it wants to. |
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You need a brake and a very sensitive force sensor.
If the weight or the roll decreases slightly because
the user is pulling up on the end of the roll, the
brake is released. If the weight increases, the
brake is applied. I was going to say this would be
useful for someone with cats, but then realized that
if the roll didn't spin the cat would then simply use
it to sharpen their claws, completely shredding one
side of the roll. |
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how about a seatbelt-style inertia reel system? this should
also stop the overenthusiastic. They need stopping. |
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Yes, I think an inertia reel mechanism is the way to
go. Either that or lower the spec of your loo roll axle
bearings so that it doesn't turn so freely. |
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//lower the spec of your loo roll axle bearings// |
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sounds like a dangerous lack of over-engineering to me.. |
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Now excuse me while I service the oil pump on my loo roll
holder |
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// I feel like I have seen oval shaped central cylinders for tp rolls. // |
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I feel like those were just rolls that had been accidentally squozen across the diameter at some point between manufacturing and being seen by you. |
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As, for the next 21 minutes, I am still employed by one of the nation's favourite loo-roll makers, I feel a professional obligation to defend their position vis-a-vis the current design of loo-rolls. But I'm not going to. So there! |
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