Will the Waterloo and city line go ATO?

[phillw48]

Mar 27, 2011 18:36:50 GMT Deep Level said:

Mar 27, 2011 11:46:45 GMT phillw48 said:

Yes I've found that news.bbc.co.uk/1/hi/world/europe/3001182.stm
IIRC the one I spoke of was in an American airport, perhaps that was just as unsuccessful.

Perhaps this is the one:

Possibly, IIRC I saw it on 'Tomorrows World' on the BBC, that would have been about 30 years ago. I have also been on a travelator that followed a curve, the segments were crescent shaped. I know that there was an early experiment on the tube with a curved escalator, it looks like it has been re-invented >>

[Tom]

Mar 27, 2011 14:57:47 GMT railtechnician said:

Mar 27, 2011 14:05:19 GMT Tom said:

The time I walked the line on a Sunday afternoon, it took about 25 mins to Bank, and about 30 back.

Slowcoach!

I was ill that day. That's my excuse at least! ;D

[railtechnician]

Mar 27, 2011 21:50:48 GMT phillw48 said:

Mar 27, 2011 18:36:50 GMT Deep Level said:

Perhaps this is the one:

Possibly, IIRC I saw it on 'Tomorrows World' on the BBC, that would have been about 30 years ago. I have also been on a travelator that followed a curve, the segments were crescent shaped. I know that there was an early experiment on the tube with a curved escalator, it looks like it has been re-invented >>

Not quite sure it's the same thing as the Holloway Road experiment was allegedly a double helix catering for both up and down in the same space. The curved escalator is interesting but I'd like to see it from the inside because how it works cannot be seen from the outside!

[phillw48]

Mar 28, 2011 13:48:07 GMT railtechnician said:

Mar 27, 2011 21:50:48 GMT phillw48 said:

Possibly, IIRC I saw it on 'Tomorrows World' on the BBC, that would have been about 30 years ago. I have also been on a travelator that followed a curve, the segments were crescent shaped. I know that there was an early experiment on the tube with a curved escalator, it looks like it has been re-invented >>

Not quite sure it's the same thing as the Holloway Road experiment was allegedly a double helix catering for both up and down in the same space. The curved escalator is interesting but I'd like to see it from the inside because how it works cannot be seen from the outside!

I noticed that the top and bottom (step on and step off) of the curved escalators were straight. From that I have surmised that it is similar to a conventional escalator except that the 'riser' part of each step has a slight asymmetric concave shape (slightly concave on the inside of the curve but straight on the outside edge) so that when the steps flatten out they straiten up. As you must be aware that the steps on a conventional escalator return 'flat' on a curved escalator they would have to return 'stepped'. The concave shape of the riser only needs to be very slight regrettably it is not visible in the film.