What size inner tube will produce rubber bands with 8" diameter?

On 02/15/2011 09:35 PM, Prof Wonmug wrote:
> On Tue, 15 Feb 2011 20:04:11 -0500, Nate >
> wrote:
>
>> On 02/15/2011 03:21 AM, Prof Wonmug wrote:
>>> On Tue, 15 Feb 2011 00:24:17 +0000 (UTC), Brent
>>> > wrote:
>>>
>>>> On 2011-02-14, Prof > wrote:
>>>>> Can anyone tell me the formula for calculating the inside diameter of
>>>>> the air chamber in an inner tube when inflated to just full (not
>>>>> over-inflated as they do for river tubing).
>>>>>
>>>>> We recently replaced our asphalt driveway with pavers. It looks great,
>>>>> but the trash bins now make an unholy racket when I roll them down the
>>>>> driveway to the curb. I usually do this late at night or very early in
>>>>> the morning, so the racket is annoying to us and to the neighbors.
>>>>>
>>>>> My solution is to cut rubber bands (3-4" wide) from an inner tube and
>>>>> stretch them over the hard plastic wheels.
>>>>>
>>>>> I bought a Slime 5001-A inner tube from a local auto parts store that
>>>>> is labeled "700/750 R15/16". I've seen these tubes inflated to several
>>>>> times their normal size for tubing, so I figured it would work. I cut
>>>>> one band from the tube and discovered that it only has a diameter of
>>>>> about 5". I couldn't stretch it enough to get it onto the wheel.
>>>>>
>>>>> In retrospect, I should have inflated the tube as large as possible
>>>>> and let it sit for a few days to stretch it out, but it's too late for
>>>>> that now. I'm not even sure that would have worked. I could go buy
>>>>> another tube and do that. Does anyone know how much I'd have to
>>>>> inflate it and how I'd have to leave it to ghet it stretched out
>>>>> enough?
>>>>>
>>>>> Does anyone have another suggestion for a way to stretch a very stiff
>>>>> 5" rubber band to fit over a 10" wheel?
>>>>>
>>>>> If not, I need a larger inner tube. The question is, what size tube
>>>>> should I look for?
>>>>>
>>>>> When the 700/750 R15/16 is deflated and laid flat, the tube rubber is
>>>>> just under 8" wide. That is, the rubber band I cut from that tube is
>>>>> just under 8" long. If formed into a circle, the circle has a
>>>>> circumference of just under 16" (2 x 8), which makes a circle with a
>>>>> diameter of just under 5". (C = 2*pi*r = pi*d so d = C/pi).
>>>>
>>>>> I think I need a rubber band with a diameter of about 8-9". That would
>>>>> make it possible for me to stretch the band over the tire, but still
>>>>> make it tight enough to stay on.
>>>>>
>>>>> If my geometry isn't too rusty, I will need a tube with an air chamber
>>>>> that is between 13-14" wide when deflated and laid flat. A band cut
>>>>> from such a tube would have a circumference of twice that (26-28") and
>>>>> a diameter of 8-9".
>>>>>
>>>>> What size tube is that in standard tire designations?
>>>>>
>>>>> Any suggestions for where I should go to get a used or discarded tube?
>>>>
>>>> Harbor freight has a wide assortment of cheap wheels/tires that should
>>>> work well...
>>>>
>>>> http://www.harborfreight.com/
>>>>
>>>> http://www.harborfreight.com/media/13.jpg
>>>
>>> I looked into new tires. There are a couple of problems. If they are
>>> inflated, then they will eventually lose air. They there is size. The
>>> one you show for $4.99 looks too wide. It gives every other dimension.
>>> The wheels of the cart are very narrow -- about 1.5" and very little
>>> clearance. Then there's the axle size.
>>>
>>>> That's probably less than you paid for the innertube.
>>>
>>> I paid about $15 for the tube, but I'll get 15-20 bands from one tube,
>>> which works out to about $1 each. ;-)
>>
>> why not just cut strips from the tube you already have and glue them
>> onto the wheels? make 'em too long, overlap the ends, then make one
>> slice with a razor blade and remove the little pieces. et voila.
>> Doesn't cost you a thing, unless you need to buy glue. I'd probably try
>> either contact cement, or automotive trim cement (the 3M yellow snot
>> stuff,) whichever you have handy.
>
> I was a little reluctant to use glue in case I ever needed to
> remove/replace them, but maybe you have a point. I've never used the
> trim cement. Is this it?
>
> http://tinyurl.com/4qpz4zp

No, what I think I'm remembering I believe is the 08001. It's yellow,
comes in a tube, and is about the consistency of mucus from a really bad
head cold. It's like contact cement's evil cousin.

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

On Feb 15, 10:07*pm, Nate Nagel > wrote:
>
>
> No, what I think I'm remembering I believe is the 08001. It's yellow,
> comes in a tube, and is about the consistency of mucus from a really bad
> head cold. *It's like contact cement's evil cousin.
>
> nate
>
> --
> replace "roosters" with "cox" to reply.http://members.cox.net/njnagel


http://solutions.3m.com/wps/portal/3...glDSL8V8KL2Nbl

Nate Nagel wrote:
> On 02/15/2011 09:35 PM, Prof Wonmug wrote:
>> On Tue, 15 Feb 2011 20:04:11 -0500, Nate >
>> wrote:
>>
>>> On 02/15/2011 03:21 AM, Prof Wonmug wrote:
>>>> On Tue, 15 Feb 2011 00:24:17 +0000 (UTC), Brent
>>>> > wrote:
>>>>
>>>>> On 2011-02-14, Prof > wrote:
>>>>>> Can anyone tell me the formula for calculating the inside diameter of
>>>>>> the air chamber in an inner tube when inflated to just full (not
>>>>>> over-inflated as they do for river tubing).
>>>>>>
>>>>>> We recently replaced our asphalt driveway with pavers. It looks
>>>>>> great,
>>>>>> but the trash bins now make an unholy racket when I roll them down
>>>>>> the
>>>>>> driveway to the curb. I usually do this late at night or very
>>>>>> early in
>>>>>> the morning, so the racket is annoying to us and to the neighbors.
>>>>>>
>>>>>> My solution is to cut rubber bands (3-4" wide) from an inner tube and
>>>>>> stretch them over the hard plastic wheels.
>>>>>>
>>>>>> I bought a Slime 5001-A inner tube from a local auto parts store that
>>>>>> is labeled "700/750 R15/16". I've seen these tubes inflated to
>>>>>> several
>>>>>> times their normal size for tubing, so I figured it would work. I cut
>>>>>> one band from the tube and discovered that it only has a diameter of
>>>>>> about 5". I couldn't stretch it enough to get it onto the wheel.
>>>>>>
>>>>>> In retrospect, I should have inflated the tube as large as possible
>>>>>> and let it sit for a few days to stretch it out, but it's too late
>>>>>> for
>>>>>> that now. I'm not even sure that would have worked. I could go buy
>>>>>> another tube and do that. Does anyone know how much I'd have to
>>>>>> inflate it and how I'd have to leave it to ghet it stretched out
>>>>>> enough?
>>>>>>
>>>>>> Does anyone have another suggestion for a way to stretch a very stiff
>>>>>> 5" rubber band to fit over a 10" wheel?
>>>>>>
>>>>>> If not, I need a larger inner tube. The question is, what size tube
>>>>>> should I look for?
>>>>>>
>>>>>> When the 700/750 R15/16 is deflated and laid flat, the tube rubber is
>>>>>> just under 8" wide. That is, the rubber band I cut from that tube is
>>>>>> just under 8" long. If formed into a circle, the circle has a
>>>>>> circumference of just under 16" (2 x 8), which makes a circle with a
>>>>>> diameter of just under 5". (C = 2*pi*r = pi*d so d = C/pi).
>>>>>
>>>>>> I think I need a rubber band with a diameter of about 8-9". That
>>>>>> would
>>>>>> make it possible for me to stretch the band over the tire, but still
>>>>>> make it tight enough to stay on.
>>>>>>
>>>>>> If my geometry isn't too rusty, I will need a tube with an air
>>>>>> chamber
>>>>>> that is between 13-14" wide when deflated and laid flat. A band cut
>>>>>> from such a tube would have a circumference of twice that (26-28")
>>>>>> and
>>>>>> a diameter of 8-9".
>>>>>>
>>>>>> What size tube is that in standard tire designations?
>>>>>>
>>>>>> Any suggestions for where I should go to get a used or discarded
>>>>>> tube?
>>>>>
>>>>> Harbor freight has a wide assortment of cheap wheels/tires that should
>>>>> work well...
>>>>>
>>>>> http://www.harborfreight.com/
>>>>>
>>>>> http://www.harborfreight.com/media/13.jpg
>>>>
>>>> I looked into new tires. There are a couple of problems. If they are
>>>> inflated, then they will eventually lose air. They there is size. The
>>>> one you show for $4.99 looks too wide. It gives every other dimension.
>>>> The wheels of the cart are very narrow -- about 1.5" and very little
>>>> clearance. Then there's the axle size.
>>>>
>>>>> That's probably less than you paid for the innertube.
>>>>
>>>> I paid about $15 for the tube, but I'll get 15-20 bands from one tube,
>>>> which works out to about $1 each. ;-)
>>>
>>> why not just cut strips from the tube you already have and glue them
>>> onto the wheels? make 'em too long, overlap the ends, then make one
>>> slice with a razor blade and remove the little pieces. et voila.
>>> Doesn't cost you a thing, unless you need to buy glue. I'd probably try
>>> either contact cement, or automotive trim cement (the 3M yellow snot
>>> stuff,) whichever you have handy.
>>
>> I was a little reluctant to use glue in case I ever needed to
>> remove/replace them, but maybe you have a point. I've never used the
>> trim cement. Is this it?
>>
>> http://tinyurl.com/4qpz4zp
>
> No, what I think I'm remembering I believe is the 08001. It's yellow,
> comes in a tube, and is about the consistency of mucus from a really bad
> head cold. It's like contact cement's evil cousin.


Great trim adhesive:

http://solutions.3m.com/wps/portal/3...glDSL8V8KL2Nbl

http://preview.tinyurl.com/4rlmkh9

--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971

"Nate Nagel" > wrote in message >
> No, what I think I'm remembering I believe is the 08001. It's yellow,
> comes in a tube, and is about the consistency of mucus from a really bad
> head cold. It's like contact cement's evil cousin.
>
> nate
We usually just refer to it as 3M Yellow Weather Strip Adhesive. It is,
imo, far superior to the black adhesive. Has a lot of uses

String a piece of rope.Lift up the container and hook it on the rope and
pull the container to where you want it.
cuhulin

> wrote in message
...
> String a piece of rope.Lift up the container and hook it on the rope and
> pull the container to where you want it.
> cuhulin

You mean like a dog runline??

Yep, like a dog run line.You can use rope, or wire, or cable.Rig a
little grooved pully wheel on the trash bin.
cuhulin