rincew1nd
Administrator
Junior Under-wizzard of quiz
Posts: 10,225 
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Post by rincew1nd on Jun 8, 2016 15:18:25 GMT
HWMBO sent me a link to this video.
Seems to me to be a modern take on the Paternoster:
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Post by trt on Jun 8, 2016 15:35:33 GMT
That exchanger mechanism looks like something that's not going to work very well. As the track switches 90°, so must the cab bogey. Has to be perfectly aligned to the centre of the axis of rotation of both the switch track and the bogey or it would jam. Unless they have some sort of elliptical bearing which would allow a considerable misalignment. I certainly wouldn't want to have to perform a rescue anyway. How do you do that? At the moment one manually winds the cage to the nearest recovery level - escape or exit. If the cabin is individually powered... and there's more than one on a track. Hm.
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class411
Operations: Normal
Posts: 2,724
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Post by class411 on Jun 8, 2016 17:09:45 GMT
It is an interesting idea, but given the problems LU have with ordinary up/down (sideways would be nice) lifts, it would seem to be a big ask to implement this reliably.
Of course, technology progresses so never say die. (I often wonder if the unreliability of ordinary lifts is because there are points in the system where they, through sheer inertia, use technology that should have long since been succeeded - e.g. mechanical switches when Hall effect would be more reliable).
Also worth pointing out that the chances of space being available in current stations to accommodate lateral motion are small.
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Post by trt on Jun 9, 2016 15:59:27 GMT
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jun 9, 2016 16:50:53 GMT
I'm sure I've seen this sort of thing in a film not so long ago but can't remember what it was Total Recall the newer version perhaps?
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Post by rsdworker on Jun 9, 2016 17:20:20 GMT
useful for local area like offices and business but i prefer standard lifts and inline lifts which works good but however in Germany there is similar system that goes up then across to other side then goes down but uses rope and cables - this would be used in some sttaions where space is limited for inline lifts
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Post by brigham on Jun 10, 2016 9:05:54 GMT
Seems to me to be a modern take on the wagon turntable.
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Ben
fotopic... whats that?
Posts: 4,282
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Post by Ben on Jun 10, 2016 18:25:20 GMT
The idea of a lift that travels in a semi-circle almost between two platforms and over track in the middle seems like a easier place to start. The whole thing seems obvious enough to warrant the question "why has this not happened already" - which suggests there's a fairly good reason stopping it! Presumably the engineering is still considered challenging?
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