https://www.youtube.com/watch?v=C3p55J-VA5k

On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Wonderful. It reminds me of my first car.

Bill

On 03/03/2019 17:47, Bill Wright wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Wonderful. It reminds me of my first car.

Bill

Was your first cart that well equipped for back firing?

--
Michael Chare

On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

--
Max Demian

On Sun, 3 Mar 2019 20:41:56 +0000, Max Demian wrote:

On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view.

Have you never seen the average French driver's attitude to pedestrians?
(I jest, of course)



--
Regards, Paul Herber
http://www.paulherber.co.uk/

On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

I think that that vehicle just pre-dated the patenting of the crank.
Presumably the idea just hadn't occurred then - odd really when you look
at well handles and the like.

SteveW

Harry you burke, put a description on your links!
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"harry" wrote in message
...
https://www.youtube.com/watch?v=C3p55J-VA5k

Brian Gaff wrote

Harry you burke, put a description on your links!

He does, in the subject.

"harry" wrote in message
...
https://www.youtube.com/watch?v=C3p55J-VA5k

"harry" wrote in message
...
https://www.youtube.com/watch?v=C3p55J-VA5k

1770 French Cugnot (Repro)(1), first self powered Military vehicle

Its a modern demonstration in a park somewhere of a steam
driven vehicle. Basically its a large boiler on wheels
but its a rounded shape like the base of a turnip.

quote

First self-propelled vehicle
French Army Captain Cugnot was one of the first to successfully
employ a device for converting the reciprocating motion of a
steam piston into a rotary motion by means of a ratchet arrangement.
A small version of his three-wheeled fardier à vapeur ("steam dray")
was made and used in 1769 (a fardier was a massively built
two-wheeled horse-drawn cart for transporting very heavy equipment,
such as cannon barrels).

https://wikivisually.com/wiki/Nicolas-Joseph_Cugnot

/quote

As they say "not a lot of people know that".

It shows why the French Revolution was necessary. Looking
into a lot of things it appears the French got there first.
Accurate screw cutting lathes are another which are usually
attributed to Jesse Ramsden a precision instrument maker,
and Henry Maudeslay machine tool maker and engineer.
When in fact a French bloke got there first. However all
the references to him are in French and never show up
on Google.
This is because the French system of govt and
administration wasn't conducive to the development
of industry - also they didn't have Protestants or
Quakers.


michael adams

....

"Rod Speed" wrote in message
...
Brian Gaff wrote
Harry you burke, put a description on your links!

He does, in the subject.

It has nothing to do with motoring it was intended as replacement
for artillery horses.

Do you ever get anything right ?

Why am I always asking such stupid questions ?


michael adams

....

michael adams wrote
harry wrote

https://www.youtube.com/watch?v=C3p55J-VA5k

1770 French Cugnot (Repro)(1), first self powered Military vehicle

Fark. Unlikely to have won many wars with that.

Its a modern demonstration in a park somewhere of a steam driven vehicle.
Basically its a large boiler on wheels but its a rounded shape like the
base of a turnip.

And a tad vulnerable out in front like that.

quote

First self-propelled vehicle
French Army Captain Cugnot was one of the first to successfully
employ a device for converting the reciprocating motion of a
steam piston into a rotary motion by means of a ratchet arrangement.
A small version of his three-wheeled fardier à vapeur ("steam dray")
was made and used in 1769 (a fardier was a massively built two-
wheeled horse-drawn cart for transporting very heavy equipment,
such as cannon barrels).

https://wikivisually.com/wiki/Nicolas-Joseph_Cugnot

/quote

As they say "not a lot of people know that".

It shows why the French Revolution was necessary.

Yeah, can't have the aristos running people over with those.

Looking into a lot of things it appears the French got there first.

Yeah, like having a revolution.

Accurate screw cutting lathes are another which are usually
attributed to Jesse Ramsden a precision instrument maker,
and Henry Maudeslay machine tool maker and engineer.
When in fact a French bloke got there first. However all the references to
him are in French and never show up on Google.

Even after the buggers paid for the statue of liberty.

This is because the French system of govt and administration wasn't
conducive to the development of industry

Must be why they never had Mirage fighters,
or the best nukes in the world, or Airbus.

- also they didn't have Protestants

Corse they did, they just killed theirs.
https://en.wikipedia.org/wiki/Protestantism_in_France

or Quakers.

Wrong, as always.
https://en.wikipedia.org/wiki/Quakers_in_Europe#France

michael adams wrote
Rod Speed wrote
Brian Gaff wrote

Harry you burke, put a description on your links!

He does, in the subject.

It has nothing to do with motoring

That was a joke, joyce. We realise you have had a soh bypass.

it was intended as replacement for artillery horses.

Wrong, as always. It was intended as a replacement for DRAY horses.

Why am I always asking such stupid questions ?

That’s what ear to ear dog **** produces, stupid.

"Rod Speed" wrote in message
...
michael adams wrote
harry wrote

https://www.youtube.com/watch?v=C3p55J-VA5k

1770 French Cugnot (Repro)(1), first self powered Military vehicle

Fark. Unlikely to have won many wars with that.

Its a modern demonstration in a park somewhere of a steam driven vehicle. Basically
its a large boiler on wheels but its a rounded shape like the base of a turnip.

And a tad vulnerable out in front like that.

quote

First self-propelled vehicle
French Army Captain Cugnot was one of the first to successfully
employ a device for converting the reciprocating motion of a
steam piston into a rotary motion by means of a ratchet arrangement.
A small version of his three-wheeled fardier à vapeur ("steam dray")
was made and used in 1769 (a fardier was a massively built two-
wheeled horse-drawn cart for transporting very heavy equipment,
such as cannon barrels).

https://wikivisually.com/wiki/Nicolas-Joseph_Cugnot

/quote

As they say "not a lot of people know that".

It shows why the French Revolution was necessary.

Yeah, can't have the aristos running people over with those.

Looking into a lot of things it appears the French got there first.

Yeah, like having a revolution.

Accurate screw cutting lathes are another which are usually
attributed to Jesse Ramsden a precision instrument maker,
and Henry Maudeslay machine tool maker and engineer.
When in fact a French bloke got there first. However all the references to him are in
French and never show up on Google.

Even after the buggers paid for the statue of liberty.

This is because the French system of govt and administration wasn't conducive to the
development of industry

Must be why they never had Mirage fighters,
or the best nukes in the world, or Airbus.

But they were all *after* the French Revolution though, weren't
they ?


- also they didn't have Protestants

Corse they did, they just killed theirs.
https://en.wikipedia.org/wiki/Protestantism_in_France

or Quakers.

Wrong, as always.
https://en.wikipedia.org/wiki/Quakers_in_Europe#France

They moved back in, didn't they ?

But only after after Britain had got her unassailable lead
in the IR. And before the Chermans showed up.

Basically they brought on their subs, but too late in the
match.

What time does Whiskey Dave show up for work ? I can't take
much more of this.


michael adams

....

"Rod Speed" wrote in message
...
michael adams wrote
Rod Speed wrote
Brian Gaff wrote

Harry you burke, put a description on your links!

He does, in the subject.

It has nothing to do with motoring

That was a joke, joyce.

For whose benefit exactly ?

Brians ?

So how is that supposed to work ?


michael adams

....

On Mon, 4 Mar 2019 20:23:28 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:



Harry you burke, put a description on your links!

He does, in the subject.

Not really, you endlessly pontificating psychopathic senile Ozzie cretin.

--
Norman Wells addressing senile Rot:
"Ah, the voice of scum speaks."
MID:

On Mon, 4 Mar 2019 20:56:04 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:


It has nothing to do with motoring

That was a joke, joyce.

Senile idiot, what you fail to realize is that YOU are the joke here, you
ridiculous 85-year-old trolling cretin! LOL

--
The Natural Philosopher about senile Rot:
"Rod speed is not a Brexiteer. He is an Australian troll and arsehole."
Message-ID:

On Mon, 4 Mar 2019 20:52:20 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:

FLUSH most of the usual senile troll****

Wrong, as always.

Nope, but more senile trolling, as always, senile troll!

--
"Anonymous" to trolling senile Rot Speed:
"You can **** off as you know less than pig **** you sad
little ignorant ****."
MID:

"michael adams" wrote in message
o.uk...

"Rod Speed" wrote in message
...
michael adams wrote
harry wrote

https://www.youtube.com/watch?v=C3p55J-VA5k

1770 French Cugnot (Repro)(1), first self powered Military vehicle

Fark. Unlikely to have won many wars with that.

Its a modern demonstration in a park somewhere of a steam driven
vehicle. Basically its a large boiler on wheels but its a rounded shape
like the base of a turnip.

And a tad vulnerable out in front like that.

quote

First self-propelled vehicle
French Army Captain Cugnot was one of the first to successfully
employ a device for converting the reciprocating motion of a
steam piston into a rotary motion by means of a ratchet arrangement.
A small version of his three-wheeled fardier à vapeur ("steam dray")
was made and used in 1769 (a fardier was a massively built two-
wheeled horse-drawn cart for transporting very heavy equipment,
such as cannon barrels).

https://wikivisually.com/wiki/Nicolas-Joseph_Cugnot

/quote

As they say "not a lot of people know that".

It shows why the French Revolution was necessary.

Yeah, can't have the aristos running people over with those.

Looking into a lot of things it appears the French got there first.

Yeah, like having a revolution.

Accurate screw cutting lathes are another which are usually
attributed to Jesse Ramsden a precision instrument maker,
and Henry Maudeslay machine tool maker and engineer.
When in fact a French bloke got there first. However all the references
to him are in French and never show up on Google.

Even after the buggers paid for the statue of liberty.

This is because the French system of govt and administration wasn't
conducive to the development of industry

Must be why they never had Mirage fighters,
or the best nukes in the world, or Airbus.

But they were all *after* the French Revolution though, weren't they ?

They had plenty of decent stuff before it too.

- also they didn't have Protestants

Corse they did, they just killed theirs.
https://en.wikipedia.org/wiki/Protestantism_in_France

or Quakers.

Wrong, as always.
https://en.wikipedia.org/wiki/Quakers_in_Europe#France

They moved back in, didn't they ?

Who did ?

But only after after Britain had got her unassailable lead in the IR.

Pity about whose measurement
standards the world ended up using.

And before the Chermans showed up.

Hopeless at commercial aircraft.

Basically they brought on their subs, but too late in the match.

Pity about Airbus. Left you poms for dead.

What time does Whiskey Dave show up for work ?

Dunno, he seems to start posting rather later
than that, likely after he has cleaned the dunnys.

I can't take much more of this.

You're free to top yourself any time you like.

michael adams wrote
Rod Speed wrote
michael adams wrote
Rod Speed wrote
Brian Gaff wrote

Harry you burke, put a description on your links!

He does, in the subject.

It has nothing to do with motoring

That was a joke, joyce.

For whose benefit exactly ?

Ask Harry.

Brians ?

Unlikely given that there is no commentary at all so it
wouldn’t be possible for him to work out what its about.
Tho presumably if he doesn’t give up when its obvious
that there is no commentary, it should eventually be obvious
that its some form of steam engine from the sound of it.

So how is that supposed to work ?

It works by steam, stupid.

"Rod Speed" wrote in message
...


"michael adams" wrote in message
o.uk...

I can't take much more of this.

You're free to top yourself any time you like.

Rodney if suicide was the only remedy when faced
with your irredeemable stupidity, then you would
have left a trail of bodies in your wake, which
would shame any serial killer.


michael adams

....

On Tue, 5 Mar 2019 05:14:32 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:


Ask Harry.

Brians ?

Unlikely given that there is no commentary at all so it
wouldn¢t be possible for him to work out what its about.
Tho presumably if he doesn¢t give up when its obvious
that there is no commentary, it should eventually be obvious
that its some form of steam engine from the sound of it.

Good Lord, what idiotic drivel again! So, why does obviously NOBODY in real
life talk to you, senile cretin? BG

--
"Anonymous" to trolling senile Rot Speed:
"You can **** off as you know less than pig **** you sad
little ignorant ****."
MID:

On Tue, 5 Mar 2019 05:11:24 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:

FLUSH another load of psychopathic troll****

....and much better air in here again!

--
Richard addressing Rot Speed:
"**** you're thick/pathetic excuse for a troll."
MID:

"michael adams" wrote in message
...

"Rod Speed" wrote in message
...


"michael adams" wrote in message
o.uk...

I can't take much more of this.

You're free to top yourself any time you like.

Rodney if suicide was the only remedy when faced
with your irredeemable stupidity, then you would
have left a trail of bodies in your wake, which
would shame any serial killer.

You never could bull**** your way out of a wet paper bag.

On Tue, 5 Mar 2019 11:04:51 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:

You never could bull**** your way out of a wet paper bag.

You certainly KEEP bull****ting your way into your grave, you psychopathic
senile swine!

--
Norman Wells addressing senile Rot:
"Ah, the voice of scum speaks."
MID:

On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

I think the piston is omnidirectional as far as the power goes, with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting fairly
smooth torque at the wheel for the whole wheel rev. I guess the piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

On Tuesday, 5 March 2019 08:16:53 UTC, Andy Bennet wrote:
On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

I think the piston is omnidirectional as far as the power goes, with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting fairly
smooth torque at the wheel for the whole wheel rev. I guess the piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

AIUI...
Piston power output is unidirectional, it powers upwards.
One power stroke only moves the roadwheel part of a revolution.
There is only one piston. The engine can only continue driving the wheel when the dray coasts far enough to re-engage the ratchet mechanism. Uphill or with low steam pressure that fails to occur.
The ratchet mechanism makes gearing from piston to wheel consistent, but of course the piston steam pressure falls greatly during the stroke.
I don't know for certain but piston return is most likely by gravity.
Top speed IIRC was 2.5mph. And yes, that was a speed record


NT

wrote:
On Tuesday, 5 March 2019 08:16:53 UTC, Andy Bennet wrote:
On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

I think the piston is omnidirectional as far as the power goes, with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting fairly
smooth torque at the wheel for the whole wheel rev. I guess the piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

AIUI...
Piston power output is unidirectional, it powers upwards.
One power stroke only moves the roadwheel part of a revolution.
There is only one piston. The engine can only continue driving the wheel
when the dray coasts far enough to re-engage the ratchet mechanism.
Uphill or with low steam pressure that fails to occur.
The ratchet mechanism makes gearing from piston to wheel consistent, but
of course the piston steam pressure falls greatly during the stroke.
I don't know for certain but piston return is most likely by gravity.
Top speed IIRC was 2.5mph. And yes, that was a speed record


NT


The original is in a museum in Paris and has two cylinders one each side of
the driven wheel.
https://goo.gl/images/f9RgL9



This video on you tube shows how it worked.

https://youtu.be/L4A5ZNjisRM
The ratchet looks like it may have been inspired by clock mechanisms.
No engine braking so perhaps best it was slow.

GH

On Tuesday, 5 March 2019 17:54:27 UTC, Marland wrote:
tabbypurr wrote:
On Tuesday, 5 March 2019 08:16:53 UTC, Andy Bennet wrote:
On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

I think the piston is omnidirectional as far as the power goes, with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting fairly
smooth torque at the wheel for the whole wheel rev. I guess the piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

AIUI...
Piston power output is unidirectional, it powers upwards.
One power stroke only moves the roadwheel part of a revolution.
There is only one piston. The engine can only continue driving the wheel
when the dray coasts far enough to re-engage the ratchet mechanism.
Uphill or with low steam pressure that fails to occur.
The ratchet mechanism makes gearing from piston to wheel consistent, but
of course the piston steam pressure falls greatly during the stroke.
I don't know for certain but piston return is most likely by gravity.
Top speed IIRC was 2.5mph. And yes, that was a speed record


NT


The original is in a museum in Paris and has two cylinders one each side of
the driven wheel.
https://goo.gl/images/f9RgL9



This video on you tube shows how it worked.

https://youtu.be/L4A5ZNjisRM
The ratchet looks like it may have been inspired by clock mechanisms.
No engine braking so perhaps best it was slow.

GH

Flip the driving levers puts the engine in reverse, that's the brake system. And at that speed you can always poke a stick through the spokes to stop one of the wheels. Nevertheless it lost control & crashed on its first outing.

MPG must have been horrendous with such low pressure steam.


NT

wrote in message
...
On Tuesday, 5 March 2019 17:54:27 UTC, Marland wrote:
tabbypurr wrote:
On Tuesday, 5 March 2019 08:16:53 UTC, Andy Bennet wrote:
On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going
and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion?
(Probably
not as I don't suppose the Frogs would care about English patent
law.)

I think the piston is omnidirectional as far as the power goes, with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting
fairly
smooth torque at the wheel for the whole wheel rev. I guess the piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

AIUI...
Piston power output is unidirectional, it powers upwards.
One power stroke only moves the roadwheel part of a revolution.
There is only one piston. The engine can only continue driving the
wheel
when the dray coasts far enough to re-engage the ratchet mechanism.
Uphill or with low steam pressure that fails to occur.
The ratchet mechanism makes gearing from piston to wheel consistent,
but
of course the piston steam pressure falls greatly during the stroke.
I don't know for certain but piston return is most likely by gravity.
Top speed IIRC was 2.5mph. And yes, that was a speed record


NT


The original is in a museum in Paris and has two cylinders one each side
of
the driven wheel.
https://goo.gl/images/f9RgL9



This video on you tube shows how it worked.

https://youtu.be/L4A5ZNjisRM
The ratchet looks like it may have been inspired by clock mechanisms.
No engine braking so perhaps best it was slow.

Flip the driving levers puts the engine in reverse, that's the brake
system.

And at that speed you can always poke a stick
through the spokes to stop one of the wheels.

There are no spokes on the driven wheel and poking
a stick thru one of the back wheels wont provide
much braking at all with something that massive.
And its far from clear that any old stick would have
any effect at all with the non driven wheels so far
out from the body of the wagon itself. even a
2x4 kept handy likely wouldnt work either.

Nevertheless it lost control & crashed on its first outing.

Demolishing the steam generator at the front presumably.

MPG must have been horrendous with such low pressure steam.

MPL actually.

On Wednesday, 6 March 2019 01:11:46 UTC, Rod Speed wrote:
tabbypurr wrote in message
...
On Tuesday, 5 March 2019 17:54:27 UTC, Marland wrote:
tabbypurr wrote:
On Tuesday, 5 March 2019 08:16:53 UTC, Andy Bennet wrote:
On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:

https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going
and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion?
(Probably
not as I don't suppose the Frogs would care about English patent
law.)

I think the piston is omnidirectional as far as the power goes, with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting
fairly
smooth torque at the wheel for the whole wheel rev. I guess the piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

AIUI...
Piston power output is unidirectional, it powers upwards.
One power stroke only moves the roadwheel part of a revolution.
There is only one piston. The engine can only continue driving the
wheel
when the dray coasts far enough to re-engage the ratchet mechanism.
Uphill or with low steam pressure that fails to occur.
The ratchet mechanism makes gearing from piston to wheel consistent,
but
of course the piston steam pressure falls greatly during the stroke.
I don't know for certain but piston return is most likely by gravity..
Top speed IIRC was 2.5mph. And yes, that was a speed record


NT


The original is in a museum in Paris and has two cylinders one each side
of
the driven wheel.
https://goo.gl/images/f9RgL9



This video on you tube shows how it worked.

https://youtu.be/L4A5ZNjisRM
The ratchet looks like it may have been inspired by clock mechanisms.
No engine braking so perhaps best it was slow.

Flip the driving levers puts the engine in reverse, that's the brake
system.

And at that speed you can always poke a stick
through the spokes to stop one of the wheels.

There are no spokes on the driven wheel and poking
a stick thru one of the back wheels wont provide
much braking at all with something that massive.
And its far from clear that any old stick would have
any effect at all with the non driven wheels so far
out from the body of the wagon itself. even a
2x4 kept handy likely wouldnt work either.

Rubbish. The thing barely manages to move forward, any locked wheel would stop it.

Nevertheless it lost control & crashed on its first outing.

Demolishing the steam generator at the front presumably.

MPG must have been horrendous with such low pressure steam.

MPL actually.

MPGe in fact


NT

wrote in message
...
On Wednesday, 6 March 2019 01:11:46 UTC, Rod Speed wrote:
tabbypurr wrote in message
...
On Tuesday, 5 March 2019 17:54:27 UTC, Marland wrote:
tabbypurr wrote:
On Tuesday, 5 March 2019 08:16:53 UTC, Andy Bennet wrote:
On 03/03/2019 20:41, Max Demian wrote:
On 03/03/2019 17:06, harry wrote:

https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get
going
and
the steam obscuring the view. Did the patent on the crank
necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion?
(Probably
not as I don't suppose the Frogs would care about English patent
law.)

I think the piston is omnidirectional as far as the power goes,
with a
spring return at the end of the stroke. If thats the case then the
ratchet mechanism is actually quite efficient as you are getting
fairly
smooth torque at the wheel for the whole wheel rev. I guess the
piston
on the other side might concievably be at mid power stroke when the
other side returns.
I think reverse gear selection could be improved though!

AIUI...
Piston power output is unidirectional, it powers upwards.
One power stroke only moves the roadwheel part of a revolution.
There is only one piston. The engine can only continue driving the
wheel
when the dray coasts far enough to re-engage the ratchet mechanism.
Uphill or with low steam pressure that fails to occur.
The ratchet mechanism makes gearing from piston to wheel consistent,
but
of course the piston steam pressure falls greatly during the stroke.
I don't know for certain but piston return is most likely by
gravity.
Top speed IIRC was 2.5mph. And yes, that was a speed record


NT


The original is in a museum in Paris and has two cylinders one each
side
of
the driven wheel.
https://goo.gl/images/f9RgL9



This video on you tube shows how it worked.

https://youtu.be/L4A5ZNjisRM
The ratchet looks like it may have been inspired by clock mechanisms.
No engine braking so perhaps best it was slow.

Flip the driving levers puts the engine in reverse, that's the brake
system.

And at that speed you can always poke a stick
through the spokes to stop one of the wheels.

There are no spokes on the driven wheel and poking
a stick thru one of the back wheels wont provide
much braking at all with something that massive.
And its far from clear that any old stick would have
any effect at all with the non driven wheels so far
out from the body of the wagon itself. even a
2x4 kept handy likely wouldnt work either.

Rubbish. The thing barely manages to move
forward, any locked wheel would stop it.

Bull****, it would just drag that wheel. It is after all iron tyred.

And there is no way to lock the wheel anyway.

Nevertheless it lost control & crashed on its first outing.

Demolishing the steam generator at the front presumably.

MPG must have been horrendous with such low pressure steam.

MPL actually.

MPGe in fact

Nope, MP Lump of wood.

On Wed, 6 Mar 2019 12:11:36 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:


There are no spokes on the driven wheel and poking

Starting yet another quarrel, you 85-year-old senile psychopathic sow?

--
Bill Wright to Rot Speed:
"That confirms my opinion that you are a despicable little ****."
MID:

On Wed, 6 Mar 2019 13:38:14 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:

FLUSH the senile idiot's latest troll****

On Tue, 5 Mar 2019 12:41:06 -0800 (PST)
wrote:

MPG must have been horrendous with such low pressure steam.

You'd have to use miles per tree, not per gallon.

"Rob Morley" wrote in message
news:20190306191148.46fc9c29@Mars...
On Tue, 5 Mar 2019 12:41:06 -0800 (PST)
wrote:

MPG must have been horrendous with such low pressure steam.

You'd have to use miles per tree, not per gallon.

Miles per lump of wood, actually.

On Thu, 7 Mar 2019 08:12:55 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:



Miles per lump of wood, actually.

You need a lump of wood against your senile head, senile idiot!

--
FredXX to Rot Speed:
"You are still an idiot and an embarrassment to your country. No wonder
we shippe the likes of you out of the British Isles. Perhaps stupidity
and criminality is inherited after all?"
Message-ID: