Chris Elvidge <chris@mshome.net> wrote in
news:stc27e$oe9$1@dont-email.me:

> On 01/02/2022 18:38, Thomas Prufer wrote:
>> On Tue, 1 Feb 2022 16:09:44 +0000, "Nicholas D. Richards"
>> <nicholas@salmiron.com> wrote:
>>
>>> In article <stbefc$sia$2@dont-email.me>, RustyHinge
>>> <rusty.hinge@foobar. girolle.co.uk> on Tue, 1 Feb 2022 at 14:01:16
>>> awoke Nicholas from his slumbers and wrote
>>>> On 01/02/2022 13:27, Ahem A Rivet's Shot wrote:
>>>>> On Tue, 1 Feb 2022 12:53:47 +0000
>>>>> "Kerr-Mudd, John" <admin@127.0.0.1> wrote:
>>>>>
>>>>>> On Tue, 1 Feb 2022 12:08:47 +0000
>>>>>> "ChrisND@privacy.net" <chrisnd@privacy.net> wrote:
>>>>>>
>>>>>>> I remmeber been given petrol ration couplons in the 1970s.
>>>>>>> Does that count?
>>>>>>> C
>>>>>>
>>>>>> Will they still be valid this time around? </gloom>
>>>>>
>>>>> Adjusted for inflation ?
>>>>
>>>>
>>>> Nah, air is free, sir.
>>>>
>>> We have water meters now. Air meters cannot be far behind.
>>
>> Ah bah humbug, seen those, both in Leftpondia and Treznal: The
>> gas/petrol/diesel station air pump thing wanting coins or bills to
>> dispense tire/tyre inflation air. ISTR the Leftpondian one wanting 1$
>> for a very few minutes of operation, possibly even payable by card
>> swipe. Sod that, on so many levels.
>>
>>
>> Thomas Prufer
>>
>
> And Tesco - £1 for (IIRC) 10 minutes
We have one like that at our local garidge. Quid for 5 minutes, dial in the
reuired pressure and it beeps when the tyre reaches that pressure.

--
Peter
-----

ChrisND@privacy.net said:
> On 31/01/2022 21:41, Kerr-Mudd, John wrote:
>>>
>> How old is that ration book?
>>
> I remmeber been given petrol ration couplons in the 1970s.
> Does that count?

No, it's the tobacco that counts.

--
Richard Robinson
"The whole plan hinged upon the natural curiosity of potatoes" - S. Lem

My email address is at http://qualmograph.org.uk/contact.html

On Tue, 1 Feb 2022 21:01:39 +0000, RustyHinge <rusty.hinge@foobar.girolle.co.uk>
wrote:

>I had a puncture in my dsidecar tyre a long time ago. Tyre (with inner
>tube) well flat Ipssnig with rain. I ohled a bockle of some grey gunge
>and squirted it into the tube, then pumped it up good and hard with
>'free air'.
>
>The following morning it was still inflated, as was it the next day, the
>next week, indeed, the next year. It was still good and hard (oo-er!)
>when I sold the outfit many years later.

I bought a pushbike innertube prefilled with gunge, never have puncture again,
bla bla. Put it on a mate's bicycle. He got a puncture, the air leaked, and the
goo leaked too and spread out between the tire and inner tube, making a huge wet
mess. No sign of any sealing action, either while on the wheel or off.

The puncture was a pinhole in the tread, not a great big slash.

Bah humbug.

Thomas Prufer

On 02/02/2022 07:43, Thomas Prufer wrote:
> On Tue, 1 Feb 2022 21:01:39 +0000, RustyHinge <rusty.hinge@foobar.girolle.co.uk>
> wrote:
>
>> I had a puncture in my dsidecar tyre a long time ago. Tyre (with inner
>> tube) well flat Ipssnig with rain. I ohled a bockle of some grey gunge
>> and squirted it into the tube, then pumped it up good and hard with
>> 'free air'.
>>
>> The following morning it was still inflated, as was it the next day, the
>> next week, indeed, the next year. It was still good and hard (oo-er!)
>> when I sold the outfit many years later.
>
> I bought a pushbike innertube prefilled with gunge, never have puncture again,
> bla bla. Put it on a mate's bicycle. He got a puncture, the air leaked, and the
> goo leaked too and spread out between the tire and inner tube, making a huge wet
> mess. No sign of any sealing action, either while on the wheel or off.
>
> The puncture was a pinhole in the tread, not a great big slash.
>
> Bah humbug.
>
> Thomas Prufer

Some tyre shops won't touch a wheel that has a tyre full of gunge fitted
to it. Too messy.

Tone

On Wed, 02 Feb 2022 08:43:23 +0100
Thomas Prufer <prufer.public@mnet-online.de.invalid> wrote:

> I bought a pushbike innertube prefilled with gunge, never have puncture
> again, bla bla. Put it on a mate's bicycle. He got a puncture, the air
> leaked, and the goo leaked too and spread out between the tire and inner
> tube, making a huge wet mess. No sign of any sealing action, either while
> on the wheel or off.

There are some interesting looking 3D printed airless tyres with a
complex structure substituting for inflation with talk of them being made
from recycled rubber and in turn recyclable.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/

Ahem A Rivet's Shot <steveo@eircom.net> wrote:
> On Wed, 02 Feb 2022 08:43:23 +0100
> Thomas Prufer <prufer.public@mnet-online.de.invalid> wrote:
>
>> I bought a pushbike innertube prefilled with gunge, never have puncture
>> again, bla bla. Put it on a mate's bicycle. He got a puncture, the air
>> leaked, and the goo leaked too and spread out between the tire and inner
>> tube, making a huge wet mess. No sign of any sealing action, either while
>> on the wheel or off.
>
> There are some interesting looking 3D printed airless tyres with a
> complex structure substituting for inflation with talk of them being made
> from recycled rubber and in turn recyclable.
>

Which will no doubt go the way of all airless tyres, namely vanish into
obscurity.

Fundamentally, they’re all seriously flawed. To provide the same level of
cushioning using the bit of tyre between the rim and the road as a
pneumatic tyre requires a much “softer” tyre. This means increased rolling
resistance and fuel consumption. Can work very well in specialist
applications where puncture resistance outweighs all other factors but for
cars I don’t think it’ll ever be worthwhile.

Tim

--
Please don't feed the trolls

On 2022-02-01, Don Stockbauer <donstockbauer@hotmail.com> wrote:
> On Tuesday, February 1, 2022 at 1:28:04 PM UTC-6, John Williamson wrote:
>> On 01/02/2022 18:52, Sam Plusnet wrote:
>> > I've never seen the point of them things (even when free).
>> >
>> > First, when some agency checked the gauges on many of them were wildly
>> > inaccurate.
>> > Second, you need to check the pressure when your tyres are cold, so by
>> > the time you've driven to the gas/petrol/diesel station...
>> >
>> They are better than nothing? Even checking a warm tyre is better than
>> not bothering until they notice that it's flat, which is the way most
>> motorists seem to do it now.
>>
>> At a minimum, they used to get checked every thousand miles or so, when
>> the car got serviced. Service intervals are now ten times what they used
>> to be, and even checking the oil and coolant on a modern car is a matter
>> of looking at the dash while all the computers boot up, and the levels
>> are shown on the dash.
>>
>> --
>> Tciao for Now!
>>
>> John.
>
> If you get good at it you can learn to just eyeball the tire to see if it has enough air; underinflated tires tend to be bigger on the bottom.

Like fat girls:)

Once was brought for a LandRover trip in Desert, they had a pump in the
rear so they could let the air out of tyres for grip in soft sand annd
ten inflate for roads.

--
greymausg@mail.com
That's not a mousehole!

On 2022-02-02, Tone <email@address.com> wrote:
> On 02/02/2022 07:43, Thomas Prufer wrote:
>> On Tue, 1 Feb 2022 21:01:39 +0000, RustyHinge <rusty.hinge@foobar.girolle.co.uk>
>> wrote:
>>
>>> I had a puncture in my dsidecar tyre a long time ago. Tyre (with inner
>>> tube) well flat Ipssnig with rain. I ohled a bockle of some grey gunge
>>> and squirted it into the tube, then pumped it up good and hard with
>>> 'free air'.
>>>
>>> The following morning it was still inflated, as was it the next day, the
>>> next week, indeed, the next year. It was still good and hard (oo-er!)
>>> when I sold the outfit many years later.
>>
>> I bought a pushbike innertube prefilled with gunge, never have puncture again,
>> bla bla. Put it on a mate's bicycle. He got a puncture, the air leaked, and the
>> goo leaked too and spread out between the tire and inner tube, making a huge wet
>> mess. No sign of any sealing action, either while on the wheel or off.
>>
>> The puncture was a pinhole in the tread, not a great big slash.
>>
>> Bah humbug.
>>
>> Thomas Prufer
>
>
> Some tyre shops won't touch a wheel that has a tyre full of gunge fitted
> to it. Too messy.
>
> Tone

Correct. There is a speed limit on tyres that have been gunged.

--
greymausg@mail.com
That's not a mousehole!

On Wed, 2 Feb 2022 12:17:47 +0000, Ahem A Rivet's Shot <steveo@eircom.net>
wrote:

>On Wed, 02 Feb 2022 08:43:23 +0100
>Thomas Prufer <prufer.public@mnet-online.de.invalid> wrote:
>
>> I bought a pushbike innertube prefilled with gunge, never have puncture
>> again, bla bla. Put it on a mate's bicycle. He got a puncture, the air
>> leaked, and the goo leaked too and spread out between the tire and inner
>> tube, making a huge wet mess. No sign of any sealing action, either while
>> on the wheel or off.
>
> There are some interesting looking 3D printed airless tyres with a
>complex structure substituting for inflation with talk of them being made
>from recycled rubber and in turn recyclable.

14 LEG Bike Wheel Concept

(by Colin Furze)

https://youtu.be/jRmdssX9l2g

Thomas Prufer

On Wed, 2 Feb 2022 09:36:29 +0000, Tone <email@address.com> wrote:

>Some tyre shops won't touch a wheel that has a tyre full of gunge fitted
>to it. Too messy.

From the days of cheap nasty fixes (like raw egg and pepper in the radiator to
seal leaks) comes the trick of putting milk in a leaky pushbike innertube. This
will seal any leak, so the legend goes. Mate tried it, and said he'd rather push
home --because the smell of decaying rubber-infused milk had to be experienced
to be believed...

Thomas Prufer

On 02/02/2022 16:03, maus wrote:
> On 2022-02-02, Tone <email@address.com> wrote:

>>
>>
>> Some tyre shops won't touch a wheel that has a tyre full of gunge fitted
>> to it. Too messy.
>>
>> Tone
>
> Correct. There is a speed limit on tyres that have been gunged.
>

Hooray! Hooray! I've bin right about summat for once!

You can't believe how that gladdens the heart, even when I cazzun
unforget wot it woz I was right about.

Tone

On 02/02/2022 16:11, Thomas Prufer wrote:
> On Wed, 2 Feb 2022 09:36:29 +0000, Tone <email@address.com> wrote:
>
>> Some tyre shops won't touch a wheel that has a tyre full of gunge fitted
>> to it. Too messy.
>
> From the days of cheap nasty fixes (like raw egg and pepper in the radiator to
> seal leaks) comes the trick of putting milk in a leaky pushbike innertube. This
> will seal any leak, so the legend goes. Mate tried it, and said he'd rather push
> home --because the smell of decaying rubber-infused milk had to be experienced
> to be believed...
>
>
> Thomas Prufer

Puts me in mind of the time when, as a six year old, we were off to
Folkstone on holiday on a BSA M21 600cc side valve with sidecar, in
which I was jammed, surrounded by luggage.

"Dad! Dad!" I shouted.

He ignored me.

"Dad!"

"Dad, Dad!!!"

"DAD!!!"

"What do you want. I'm busy driving!" he shouted angrily.

"I think we've got a puncture in the sidecar tyre!"

He reluctantly pulled over, got off the bike and inspected the flat tyre.

"Well, why didn't you tell me before!" he growled.

You can't win.

At least he was able to extract the innertube and repair the puncture,
and re-inflate it using the hand pump attached to the chassis, Whilst
Mum and I sat on the grass verge, eating a sandwich, watching.

Not many could do that now (Repair the puncture, not eat a sandwich).

Tone

On 02/02/2022 15:08, Tim+ wrote:
> Ahem A Rivet's Shot <steveo@eircom.net> wrote:
>> There are some interesting looking 3D printed airless tyres with a
>> complex structure substituting for inflation with talk of them being made
>> from recycled rubber and in turn recyclable.
>>
>
> Which will no doubt go the way of all airless tyres, namely vanish into
> obscurity.
>
> Fundamentally, they’re all seriously flawed. To provide the same level of
> cushioning using the bit of tyre between the rim and the road as a
> pneumatic tyre requires a much “softer” tyre. This means increased rolling
> resistance and fuel consumption. Can work very well in specialist
> applications where puncture resistance outweighs all other factors but for
> cars I don’t think it’ll ever be worthwhile.
>
> Tim
>
Given modern technology and numerically controlled machinery, it should
be possible to put a ring of hard wearing rubber round the outside and
keep the squishy stuff inside.

Remould tyres have been round for decades and use a similar technique.
Admittedly, I see the result of them failing every day that I drive on
any high speed road, but still...

--
Tciao for Now!

John.

In article <1895247048.665507016.650915.tim.downie-gmail.com@news.indivi
dual.net>, Tim+ <tim.downie@gmail.com> on Wed, 2 Feb 2022 at 15:08:49
awoke Nicholas from his slumbers and wrote
>Ahem A Rivet's Shot <steveo@eircom.net> wrote:
>> On Wed, 02 Feb 2022 08:43:23 +0100
>> Thomas Prufer <prufer.public@mnet-online.de.invalid> wrote:
>>
>>> I bought a pushbike innertube prefilled with gunge, never have puncture
>>> again, bla bla. Put it on a mate's bicycle. He got a puncture, the air
>>> leaked, and the goo leaked too and spread out between the tire and inner
>>> tube, making a huge wet mess. No sign of any sealing action, either while
>>> on the wheel or off.
>>
>> There are some interesting looking 3D printed airless tyres with a
>> complex structure substituting for inflation with talk of them being made
>> from recycled rubber and in turn recyclable.
>>
>
>Which will no doubt go the way of all airless tyres, namely vanish into
>obscurity.
>
>Fundamentally, they’re all seriously flawed. To provide the same level of
>cushioning using the bit of tyre between the rim and the road as a
>pneumatic tyre requires a much “softer” tyre. This means increased rolling
>resistance and fuel consumption. Can work very well in specialist
>applications where puncture resistance outweighs all other factors but for
>cars I don’t think it’ll ever be worthwhile.
>
Like Mrs Trellis of Croydon (not that one, she comes from North Wales,
look you) who said pneumatic tyres would never catch one.
--
0sterc@tcher -

"Où sont les neiges d'antan?"

On 2 Feb 2022 15:08:49 GMT
Tim+ <tim.downie@gmail.com> wrote:

> Fundamentally, they’re all seriously flawed. To provide the same level of
> cushioning using the bit of tyre between the rim and the road as a
> pneumatic tyre requires a much “softer” tyre.

Yes if you have a uniform material for the tyre, which is all you
can do with traditional manufacturing.

> This means increased
> rolling resistance and fuel consumption. Can work very well in specialist
> applications where puncture resistance outweighs all other factors but for
> cars I don’t think it’ll ever be worthwhile.

What's being done by a couple of major tyre manufacturers is using
structure so the bit that hits the road is solid but it connects to the hub
via a complex structure that squishes properly because of its shape.

Bridgestones version:
https://www.bridgestonetire.com/learn/tire-technology/airless-concept-tires/

Michelin's version:
https://www.michelin.com/en/innovation/vision-concept/airless/

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/

On 02/02/2022 17:55, Ahem A Rivet's Shot wrote:
> On 2 Feb 2022 15:08:49 GMT
> Tim+ <tim.downie@gmail.com> wrote:
> This means increased
>> rolling resistance and fuel consumption. Can work very well in specialist
>> applications where puncture resistance outweighs all other factors but for
>> cars I don’t think it’ll ever be worthwhile.
>
> What's being done by a couple of major tyre manufacturers is using
> structure so the bit that hits the road is solid but it connects to the hub
> via a complex structure that squishes properly because of its shape.
>
> Bridgestones version:
> https://www.bridgestonetire.com/learn/tire-technology/airless-concept-tires/
>
> Michelin's version:
> https://www.michelin.com/en/innovation/vision-concept/airless/
>
I could see those coming in handy for off road applications, too.

--
Tciao for Now!

John.

On Wed, 2 Feb 2022 17:07:03 +0000
Tone <email@address.com> wrote:

> "Dad! Dad!" I shouted.
>
> He ignored me.
>
> "Dad!"
>
> "Dad, Dad!!!"
>
> "DAD!!!"
>
> "What do you want. I'm busy driving!" he shouted angrily.
>
> "I think we've got a puncture in the sidecar tyre!"
>
> He reluctantly pulled over, got off the bike and inspected the flat tyre.
>
> "Well, why didn't you tell me before!" he growled.

I take it you already knew better than to say "You were busy
driving".

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/

On 01-Feb-22 19:28, John Williamson wrote:
> On 01/02/2022 18:52, Sam Plusnet wrote:
>> I've never seen the point of them things (even when free).
>>
>> First, when some agency checked the gauges on many of them were wildly
>> inaccurate.
>> Second, you need to check the pressure when your tyres are cold, so by
>> the time you've driven to the gas/petrol/diesel station...
>>
> They are better than nothing? Even checking a warm tyre is better than
> not bothering until they notice that it's flat, which is the way most
> motorists seem to do it now.
>
> At a minimum, they used to get checked every thousand miles or so, when
> the car got serviced. Service intervals are now ten times what they used
> to be, and even checking the oil and coolant on a modern car is a matter
> of looking at the dash while all the computers boot up, and the levels
> are shown on the dash.
>
Tyre-pressure monitoring systems on car has been a requirement within
the EU since 2012, and has been part of the (UK) MOT since 2015.

That doesn't mean people shouldn't check tyre pressures more accurately,
but it will flag up a flat tyre.

--
Sam Plusnet

On Wed, 2 Feb 2022 18:05:48 +0000
John Williamson <johnwilliamson@btinternet.com> wrote:

> On 02/02/2022 17:55, Ahem A Rivet's Shot wrote:
> > On 2 Feb 2022 15:08:49 GMT

> > Bridgestones version:
> > https://www.bridgestonetire.com/learn/tire-technology/airless-concept-tires/
> >
> > Michelin's version:
> > https://www.michelin.com/en/innovation/vision-concept/airless/
> >
> I could see those coming in handy for off road applications, too.

Yep - I'm thinking about a rolligon variant.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/

John Williamson <johnwilliamson@btinternet.com> wrote:
> On 02/02/2022 15:08, Tim+ wrote:
>> Ahem A Rivet's Shot <steveo@eircom.net> wrote:
>>> There are some interesting looking 3D printed airless tyres with a
>>> complex structure substituting for inflation with talk of them being made
>>> from recycled rubber and in turn recyclable.
>>>
>>
>> Which will no doubt go the way of all airless tyres, namely vanish into
>> obscurity.
>>
>> Fundamentally, they’re all seriously flawed. To provide the same level of
>> cushioning using the bit of tyre between the rim and the road as a
>> pneumatic tyre requires a much “softer” tyre. This means increased rolling
>> resistance and fuel consumption. Can work very well in specialist
>> applications where puncture resistance outweighs all other factors but for
>> cars I don’t think it’ll ever be worthwhile.
>>
>> Tim
>>
> Given modern technology and numerically controlled machinery, it should
> be possible to put a ring of hard wearing rubber round the outside and
> keep the squishy stuff inside.

Doesn’t change the laws of physics.

Tim

--
Please don't feed the trolls

Ahem A Rivet's Shot <steveo@eircom.net> wrote:
> On 2 Feb 2022 15:08:49 GMT
> Tim+ <tim.downie@gmail.com> wrote:
>
>> Fundamentally, they’re all seriously flawed. To provide the same level of
>> cushioning using the bit of tyre between the rim and the road as a
>> pneumatic tyre requires a much “softer” tyre.
>
> Yes if you have a uniform material for the tyre, which is all you
> can do with traditional manufacturing.
>
>> This means increased
>> rolling resistance and fuel consumption. Can work very well in specialist
>> applications where puncture resistance outweighs all other factors but for
>> cars I don’t think it’ll ever be worthwhile.
>
> What's being done by a couple of major tyre manufacturers is using
> structure so the bit that hits the road is solid but it connects to the hub
> via a complex structure that squishes properly because of its shape.
>
> Bridgestones version:
> https://www.bridgestonetire.com/learn/tire-technology/airless-concept-tires/
>
> Michelin's version:
> https://www.michelin.com/en/innovation/vision-concept/airless/
>

They work fine on industrial/construction vehicles. The poor fuel
efficiency dooms them for cars, especially for EVs where fuel efficiency is
crucial.

Tim

--
Please don't feed the trolls

<Airless tyres>
> They work fine on industrial/construction vehicles. The poor fuel
> efficiency dooms them for cars, especially for EVs where fuel efficiency is
> crucial.
>

Both makers claim to have solved that problem.

--
Tciao for Now!

John.

On 02/02/2022 16:00, maus wrote:
> On 2022-02-01, Don Stockbauer <donstockbauer@hotmail.com> wrote:
>> On Tuesday, February 1, 2022 at 1:28:04 PM UTC-6, John Williamson wrote:
>>> On 01/02/2022 18:52, Sam Plusnet wrote:
>>>> I've never seen the point of them things (even when free).
>>>>
>>>> First, when some agency checked the gauges on many of them were wildly
>>>> inaccurate.
>>>> Second, you need to check the pressure when your tyres are cold, so by
>>>> the time you've driven to the gas/petrol/diesel station...
>>>>
>>> They are better than nothing? Even checking a warm tyre is better than
>>> not bothering until they notice that it's flat, which is the way most
>>> motorists seem to do it now.
>>>
>>> At a minimum, they used to get checked every thousand miles or so, when
>>> the car got serviced. Service intervals are now ten times what they used
>>> to be, and even checking the oil and coolant on a modern car is a matter
>>> of looking at the dash while all the computers boot up, and the levels
>>> are shown on the dash.
>>>
>>> --
>>> Tciao for Now!
>>>
>>> John.
>>
>> If you get good at it you can learn to just eyeball the tire to see if it has enough air; underinflated tires tend to be bigger on the bottom.
>
> Like fat girls:)
>
> Once was brought for a LandRover trip in Desert, they had a pump in the
> rear so they could let the air out of tyres for grip in soft sand annd
> ten inflate for roads.

I once had a wbo doing mutley-drop deliveries, where at one fairly
regular delivery I could save 20 miles or so and much time by letting my
tyres down enough to creep under a low bridge in one of our Luton
Transits, then reinflate the tyres afterwards, to which end I ohled one
of they 12v pumps ibbit.

--
Rusty Hinge
To err is human. To really foul things up requires a computer and the BOFH.

John Williamson <johnwilliamson@btinternet.com> wrote:
> <Airless tyres>
>> They work fine on industrial/construction vehicles. The poor fuel
>> efficiency dooms them for cars, especially for EVs where fuel efficiency is
>> crucial.
>>
>
> Both makers claim to have solved that problem.
>

“Claim”.

Sorry, I just don’t buy it. The airless tyre has been invented many many
times and never taken off apart from industrial applications.

Tim

--
Please don't feed the trolls

On 2 Feb 2022 19:47:44 GMT
Tim+ <tim.downie@gmail.com> wrote:

> John Williamson <johnwilliamson@btinternet.com> wrote:
> > <Airless tyres>
> >> They work fine on industrial/construction vehicles. The poor fuel
> >> efficiency dooms them for cars, especially for EVs where fuel
> >> efficiency is crucial.
> >>
> >
> > Both makers claim to have solved that problem.
> >
>
> “Claim”.
>
> Sorry, I just don’t buy it. The airless tyre has been invented many many
> times and never taken off apart from industrial applications.

None of the previous incarnations have been 3D printed, that makes
a very big difference to what can be achieved.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/