Rails points question
 

Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

Rails points question
 

On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

It's a 55 minute video. How far in does it happen?

But at the miniature railway where I play the role
of The Fat Controller, such an arrangement exists at
the station throat where the operating lever for the
point is left at half travel and then each approaching
train then moves the point over to the required direction.

Rails points question
 

On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

No, but it can be done depending on how much spring there is in the
mechanism that hold them in one place.


--
Theres a mighty big difference between good, sound reasons and reasons
that sound good.

Burton Hillis (William Vaughn, American columnist)

Rails points question
 

In message , Harry Bloomfield
writes
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

Not looked at the youtube, but it could be OK. There are things called
spring loaded points, which are set to automatically send traffic on one
route (when approaching the divergence), but will allow traffic from the
other route to join the single route from either side (when converging).
Sometimes used with on trams to avoid the need for changing the points.

Adrian
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Rails points question
 

Not looked at the youtube, but it could be OK. There are things called
spring loaded points, which are set to automatically send traffic on one
route (when approaching the divergence), but will allow traffic from the
other route to join the single route from either side (when converging).
Sometimes used with on trams to avoid the need for changing the points.

They're pretty common on tramways. Some mainline railways use them too,
but the speed limit is pretty low - 15mph on the Far North Line in
Scotland. Not really an issue when they're outside a station where every
train stops, but impractical on a line with express services. Most
mainline points are power operated and held in place by the motors (plus
a facing point lock if being used in the "facing" direction i.e. from the
single end to the double end). Running through these when not set for
your line will seriously damage the points and probably derail the train.

Mike

Rails points question
 

Mike Humphrey pretended :
Not looked at the youtube, but it could be OK. There are things called
spring loaded points, which are set to automatically send traffic on one
route (when approaching the divergence), but will allow traffic from the
other route to join the single route from either side (when converging).
Sometimes used with on trams to avoid the need for changing the points.

They're pretty common on tramways. Some mainline railways use them too,
but the speed limit is pretty low - 15mph on the Far North Line in
Scotland. Not really an issue when they're outside a station where every
train stops, but impractical on a line with express services. Most
mainline points are power operated and held in place by the motors (plus
a facing point lock if being used in the "facing" direction i.e. from the
single end to the double end). Running through these when not set for
your line will seriously damage the points and probably derail the train.

Mike

Thanks All, that solves that one..

Rails points question
 

This issue used to cause problems with a model when I tried to electrify the
points, since the push needed was increased by the points mechanism when the
solenoid was attached, no such thing as half way on model trains.
Of course you can only do this in one direction reverse over half set
points is not suggested as a good idea on real trains!

Brian

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"Gareth Evans" wrote in message
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On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

It's a 55 minute video. How far in does it happen?

But at the miniature railway where I play the role
of The Fat Controller, such an arrangement exists at
the station throat where the operating lever for the
point is left at half travel and then each approaching
train then moves the point over to the required direction.

Rails points question
 

On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

expand the comments from the Youtube poster and you'll see an explanation

--
Robin
reply-to address is (intended to be) valid

Rails points question
 

On 28/04/2020 17:59, Adrian wrote:
In message , Harry Bloomfield
writes
Assuming two pairs of railway lines join together via points, to
become one line on a narrow gauge railway, the line you are on, then a
line to the left- you are progressing from the the line on the right,
onto the single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

Not looked at the youtube, but it could be OK.Â* There are things called
spring loaded points, which are set to automatically send traffic on one
route (when approaching the divergence), but will allow traffic from the
other route to join the single route from either side (when converging).
Sometimes used with on trams to avoid the need for changing the points.

I've just watched the video all the way through and the points incident
is about 5 minutes in leaving tanygriesau (sp?) station.

A fantastic film and periodically you can hear the singing of
the injectors

WOW!

Rails points question
 

Gareth Evans wrote:
On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

It's a 55 minute video. How far in does it happen?

Re-read this. https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

Tim

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Please don't feed the trolls

Rails points question
 

Robin Wrote in message:
On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

expand the comments from the Youtube poster and you'll see an explanation

--
Robin
reply-to address is (intended to be) valid


Do the Welsh use the Leftpondian convention of calling points switches?
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%Profound_observation%


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Rails points question
 

On 29/04/2020 09:21, Graham. wrote:
Robin Wrote in message:
On 28/04/2020 17:24, Harry Bloomfield wrote:
Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

expand the comments from the Youtube poster and you'll see an explanation


Do the Welsh use the Leftpondian convention of calling points switches?


I've no idea. (What I know about the Welsh could probably be written on
a station nameplate in Wales.) And I've even less clue as to the Youtube
poster's provenance.

--
Robin
reply-to address is (intended to be) valid

Rails points question
 

On Tue, 28 Apr 2020 17:24:45 +0100, Harry Bloomfield, Esq.
wrote:

Assuming two pairs of railway lines join together via points, to become
one line on a narrow gauge railway, the line you are on, then a line to
the left- you are progressing from the the line on the right, onto the
single pair of lines.

Points are set for the line on the left, rather than you line. Is is
normal to just drive the engine through the wrongly set points?

https://www.youtube.com/watch?v=1o8YJsVOH58 at 7:40

There is a hydraulic damper in the cabinet on the left that stops the
blade bouncing back on every wheelset as the train passes through. The
layout is the same and the other end of the station. Similar
mechanisms are used more extensively on the Welsh Highland Railway.
I don't know if it is still in use, but the point at the end of the
loop at Blaenau Ffestiniog is/was sprung but that is/was only used by
the loco. The same point, or one like it, was previously used at
Tanygrisiau and Dduallt when they were terminal stations.

Rails points question
 

I suspect that point in question is either weighted or sprung to sit in one
position, but loosely enough to be switched by any train which approaches
along the other track. A very standard situation.