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Post by brigham on Feb 13, 2024 8:35:49 GMT
I hope he remembers to shout 'Fire!' and not 'Gas!...Gas!'.
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Post by brigham on Feb 10, 2024 8:35:51 GMT
So you can't cut out a defective motor?
In tramway days, if a motor became defective, you simply cut it out using the reversing handle, and continued on one. A lot less power in that case, obviously; but when you have 32 I doubt that cutting one out ewould even be noticed.
Another useful feature 'rationalized-out'?
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Post by brigham on Feb 9, 2024 8:24:16 GMT
Still can't see the railway connection?
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Post by brigham on Feb 8, 2024 9:27:52 GMT
Middlesbrough RC Cathedral from the Old Town Hall. Can't see the railway connection though!
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Post by brigham on Feb 8, 2024 9:23:01 GMT
In North Eastern terms, a train calling at numerous goods yards was a 'pick-up', not a 'trip' working. A 'trip' was a short working between two nearby places, often fitted-in at short notice when required. Such a working was ICI Cyanide Works to BASF via Port Clarence goods, until it was replaced by a pipeline.
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Post by brigham on Feb 8, 2024 8:53:06 GMT
Indeed. How many trains per hour in Hartlepool? Yes, well that's rather a sore point. The number of peak-time cancellations on the District Line recently, has often been greater than the number of timetabled trains between Middlesbrough and Newcastle-upon-Tyne, via the Durham coast. It tends to make the Minister for Levelling-Up sound as credible as his counterpart in Silly Walks.
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Post by brigham on Feb 7, 2024 8:36:32 GMT
Once again I'm forgetting that conditions in London do not necessarily correspond with those in, for instance. Hartlepool; where a four-way underpass was replaced by a level crossing in order to save maintenance costs.
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Post by brigham on Feb 7, 2024 8:27:19 GMT
Plaistow is the only one formerly BR(E)?
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Post by brigham on Feb 6, 2024 9:55:15 GMT
That looks like the answer.
I couldn't grasp the idea of something running FASTER due to slip or wear, and the idea of the STEPS being belt-driven seemed quite alarming!
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Post by brigham on Feb 6, 2024 8:38:40 GMT
What would it cost to substitute a remote-operated level crossing?
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Post by brigham on Feb 3, 2024 14:48:02 GMT
A minor discrepancy between steps and handrail wouldn't seem like a major problem in operation. I'm just curious to know what allows it to happen.
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Post by brigham on Feb 3, 2024 8:39:52 GMT
With the locomotive, the variation is at the wheel/rail interface. I wonder where it is on the escalator?
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Post by brigham on Feb 3, 2024 8:26:52 GMT
D) Aldgate.
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Post by brigham on Feb 1, 2024 8:42:33 GMT
Too complicated for me.
Looks like an excercise in vexillology!
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Post by brigham on Feb 1, 2024 8:36:16 GMT
To clarify: I was referring to a friction drive element in the system.
Think of a locomotive; steel wheels running on smooth rail. Slip can occur; wheel diameter decreases with wear. Both alter the distance travelled per revolution of the wheels.
Compare this with a rack locomotive. One turn of the wheels always produces a fixed amount of travel.
There is clearly a friction-drive element in the motion which connects the escalator hand-rail and the steps together. If the hand-rail can run faster than the steps, then it obviously isn't between the hand-rail itself and the device which drives it.
I'm curious to know how the phenomenon occurs.
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Post by brigham on Jan 31, 2024 8:29:23 GMT
It suggests that there is a friction element in the drive between the steps and the handrail. Is there a reason for such an arrangement? A safety measure, perhaps.
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Post by brigham on Jan 27, 2024 8:21:59 GMT
One wonders why that flexibility hasn't been 'rationalised-out' already.
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Post by brigham on Jan 23, 2024 18:43:11 GMT
I ALWAYS take care closing doors.
It's so easy to trap ones fingers...
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Post by brigham on Jan 23, 2024 9:55:24 GMT
It would certainly be good to include Wykehamists!
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Post by brigham on Jan 23, 2024 9:50:44 GMT
The FOI answer is couched in today's usual weasel-speak.
Translation is "Ambient temperatures would have gone down, because of the new, more energy-efficient trains. So the air conditioning will just put them back up to where they were before...".
All very scientific.
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Post by brigham on Jan 17, 2024 8:43:50 GMT
What would be the outcome of a successful application of air-conditioning on a tube line?
If the cooling apparatus is on the train, might it not create an artificially-high ambient temperature in the platforms and passages, and a sudden chill on boarding?
Perhaps it would be better to use fixed cooling plant, and treat the air on the platforms?
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Post by brigham on Jan 16, 2024 8:31:58 GMT
It looks as though the biggest problem with articulated stock, ie fixed rakes, is no longer an issue.
We should be able to look forward to some reduced-weight, highly-flexible trains for the DLR in future, once the message gets out.
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Post by brigham on Jan 11, 2024 8:31:40 GMT
It IS that simple. An articulated fixed-rake of five has SIX bogies, the new five-car trains have TEN.
The weight penalty is clear, even without the addition of extra cooling kit.
By some financial sleight-of-hand, heavier trains were somehow cheaper!
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Post by brigham on Jan 10, 2024 8:58:15 GMT
The downside of articulation is inflexible fixed rakes. The downside of two-bogie cars is added cost and weight.
The new stock combines the two!
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Post by brigham on Jan 10, 2024 8:30:25 GMT
Sacking people clearly isn't the immediate cost-saving excercise it used to be.
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Post by brigham on Jan 6, 2024 9:06:05 GMT
Always difficult trying to get back in the game, after so many generations of skills have been thrown away.
It can be done. Triumph motorcycles are back!
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Post by brigham on Jan 6, 2024 8:30:43 GMT
The corporate world is full of weasel-speak. Caveat emptor.
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Post by brigham on Jan 5, 2024 8:45:34 GMT
The question is actually the wrong way round. What we want to know is 'when were electric tail lamps considered safe enough to be used instead of the normal oil lamp?'.
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Post by brigham on Dec 22, 2023 16:56:26 GMT
I've never heard the Tyneside Metro-Cammell stock referred to as 'tram-derived' before.
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Post by brigham on Dec 21, 2023 8:32:29 GMT
"Things have moved on of course and I consider the relative tube/mainline train collision risks similar to a car hitting a lorry!"
Not something that merits special attention, then.
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