Roland Perry wrote in message ...
In message , Annabel Smyth
writes
# Finsbury Park and Arsenal - deep tube platforms that aren't that deep,
and are accessed from the street only by stairs (with, at Finsbury Park,
spiral staircases in the former lift shafts to the main line station
high above).

What happened to those lifts, and why are they no longer used?

Taken out a very long time ago, if the state of wear on the stair treads
is anything to go by. Perhaps they didn't have the required capacity
when the passengers from the Victoria line were added.

They were the last hydraulic lifts on the system.

(I'd better qualify that - the last 'proper' hydraulic lifts, as
opposed to some modern electro-hydraulic installations on the DLR).

Annabel Smyth:
What happened to those [Finsbury Park] lifts...?

Roland Perry:
Taken out a very long time ago ... Perhaps they didn't have the
required capacity ...

"Kev":
They were the last hydraulic lifts on the system.

(I'd better qualify that - the last 'proper' hydraulic lifts, as
opposed to some modern electro-hydraulic installations on the DLR).

Okay, what's the distinction here? How does a "proper" hydraulic one work?
--
Mark Brader, Toronto | "When you're up to your ass in alligators, maybe
| you're in the wrong swamp." -- Bill Stewart

In message , Mark Brader
writes
Annabel Smyth:
What happened to those [Finsbury Park] lifts...?

Roland Perry:
Taken out a very long time ago ... Perhaps they didn't have the
required capacity ...

"Kev":
They were the last hydraulic lifts on the system.

(I'd better qualify that - the last 'proper' hydraulic lifts, as
opposed to some modern electro-hydraulic installations on the DLR).

Okay, what's the distinction here? How does a "proper" hydraulic one work?

Guessing wildly here (and probably wrong) but there were many hydraulic
lifts in London worked by a distributed system. It went out of business
a long time ago, and iirc the pipes were bought by a telco for putting
fibre through.
--
Roland Perry

"Mark Brader" wrote in message
...
Annabel Smyth:
What happened to those [Finsbury Park] lifts...?

Roland Perry:
Taken out a very long time ago ...

"Kev":
They were the last hydraulic lifts on the system.

(I'd better qualify that - the last 'proper'
hydraulic lifts, as opposed to some modern
electro-hydraulic installations on the DLR).

Okay, what's the distinction here?

There used to be hydraulic mains in London supplying pressurised water all
over the city for the operation of lifts (and perhaps other machinery). In
an electro-hydraulic lift, the electrical power coming into the building
would be used to pressurise water on site.

--
John Rowland - Spamtrapped
Transport Plans for the London Area, updated 2001
http://www.geocities.com/Athens/Acro...69/tpftla.html
A man's vehicle is a symbol of his manhood.
That's why my vehicle's the Piccadilly Line -
It's the size of a county and it comes every two and a half minutes

On 04/05/2004 13:01, in article , "Roland Perry"
wrote:

I'm trying to compile a list of interesting things to go see on the
"tube" on a day trip. Engineering mainly, like the crossover at the end
of the Oxford St Bakerloo, the scale of Canary Wharf and the tunnel out
of Bank-DLR. What others can the team suggest?

At least two locations on LU have switches which may well be unique to LU,
inasmuch as they can be set with both blades open, when they act as
catchpoints. The locations are a) east end of Earls Court District station,
and b) the turnback siding beyond West Hampstead (Jubilee Line). a
photograph of the latter appears on p.150 of "Principles of London
Underground Operations" by John Glover.

"Kev":
They were the last hydraulic lifts on the system.

(I'd better qualify that - the last 'proper'
hydraulic lifts, as opposed to some modern
electro-hydraulic installations on the DLR).

Mark Brader:
Okay, what's the distinction here?

John Rowland:
There used to be hydraulic mains in London supplying pressurised water
all over the city ...

London Hydraulic Power Company, as it misleadingly says on the entrance
building to the Tower Subway. I didn't know that Underground lifts
were among the machines they powered, though. Thanks.
--
Mark Brader, Toronto | "*Nature*, Mr. Allnutt, is what we are put in this
| world *to rise above*." -- The African Queen

In article , (Bob Watt) wrote:

On 04/05/2004 13:01, in article , "Roland
Perry"
wrote:

I'm trying to compile a list of interesting things to go see on the
"tube" on a day trip. Engineering mainly, like the crossover at the
end
of the Oxford St Bakerloo, the scale of Canary Wharf and the tunnel
out
of Bank-DLR. What others can the team suggest?

At least two locations on LU have switches which may well be unique to
LU,
inasmuch as they can be set with both blades open, when they act as
catchpoints. The locations are a) east end of Earls Court District
station,
and b) the turnback siding beyond West Hampstead (Jubilee Line). a
photograph of the latter appears on p.150 of "Principles of London
Underground Operations" by John Glover.

These can be found at various locations, usually at the exit from sidings
and where there is no space for the standard sand drag or arrestor. They
effectively put the train "on the deck" if the points aren't set and the
train carries on (the space between the running rails just gets wider and
wider until the bogie eventually drops off!).

On the Northern Line these can be found at:
Archway siding, Finchley Central south siding and Tooting Broadway siding
diagrams are on Tubeprune's web site at:

http://www.trainweb.org/tubeprune/no...20diagrams.htm

Roger

John Rowland:
There used to be hydraulic mains in London supplying pressurised water
all over the city ...

London Hydraulic Power Company, as it misleadingly says on the entrance
building to the Tower Subway. I didn't know that Underground lifts
were among the machines they powered, though. Thanks.
--

The original City & South London Railway lifts were hydraulic ones, I
don't know if they were supplied from that company.


Roger

wrote:
In article , (Bob Watt) wrote:


On 04/05/2004 13:01, in article , "Roland
Perry"
wrote:


I'm trying to compile a list of interesting things to go see on the
"tube" on a day trip. Engineering mainly, like the crossover at the
end
of the Oxford St Bakerloo, the scale of Canary Wharf and the tunnel
out
of Bank-DLR. What others can the team suggest?

At least two locations on LU have switches which may well be unique to
LU,
inasmuch as they can be set with both blades open, when they act as
catchpoints. The locations are a) east end of Earls Court District
station,
and b) the turnback siding beyond West Hampstead (Jubilee Line). a
photograph of the latter appears on p.150 of "Principles of London
Underground Operations" by John Glover.


These can be found at various locations, usually at the exit from sidings
and where there is no space for the standard sand drag or arrestor. They
effectively put the train "on the deck" if the points aren't set and the
train carries on (the space between the running rails just gets wider and
wider until the bogie eventually drops off!).

On the Northern Line these can be found at:
Archway siding, Finchley Central south siding and Tooting Broadway siding
diagrams are on Tubeprune's web site at:

http://www.trainweb.org/tubeprune/no...20diagrams.htm

Roger

They can also be seen at Rayners Lane.

Brad

TheOneKEA wrote:
wrote:
In article , (Bob Watt)
wrote:


On 04/05/2004 13:01, in article ,
"Roland Perry"
wrote:


I'm trying to compile a list of interesting things to go see on the
"tube" on a day trip. Engineering mainly, like the crossover at the
end
of the Oxford St Bakerloo, the scale of Canary Wharf and the tunnel
out
of Bank-DLR. What others can the team suggest?

At least two locations on LU have switches which may well be unique
to LU,
inasmuch as they can be set with both blades open, when they act as
catchpoints. The locations are a) east end of Earls Court District
station,
and b) the turnback siding beyond West Hampstead (Jubilee Line). a
photograph of the latter appears on p.150 of "Principles of London
Underground Operations" by John Glover.


These can be found at various locations, usually at the exit from
sidings and where there is no space for the standard sand drag or
arrestor. They effectively put the train "on the deck" if the points
aren't set and the train carries on (the space between the running
rails just gets wider and wider until the bogie eventually drops
off!).

On the Northern Line these can be found at:
Archway siding, Finchley Central south siding and Tooting Broadway
siding diagrams are on Tubeprune's web site at:

http://www.trainweb.org/tubeprune/no...20diagrams.htm

Roger

They can also be seen at Rayners Lane.

Brad

See also Hammersmith siding, both ends, and Wood Lane. Probably Down Street
is simlarly equipped.