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johnofwessex

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Posts posted by johnofwessex

  1. There has been some discussion about what to do with drivers who continue to drive while disqualified.

     

    My serious suggestion is a Dutch type solution, ie secure psychiatric units 

    • Like 3
  2. 4 hours ago, martin_wynne said:

     

    This may be true for terminal branch lines.

     

    But a through station on a lightly-used secondary route is very different. It might be double-track, or a passing loop on single track. But the real activity arrives when you imagine that it is part of a diversionary route while the main line is blocked for engineering work.

     

    Here for example is Rubery on the Halesowen Railway:

     

     http://www.photobydjnorton.com/HalesowenLineEnthusiast.html

     

    (The above web site does not have a security certificate, so some browsers may refuse to link it.)

     

    Martin.

     

     

    Mid Hants?

    • Agree 2
  3. 5 hours ago, jjb1970 said:

    On high pressure systems a lot of effort is made to control oxygen level, things like deaerators and chemical dosing.

     

    Usually a full shutdown to atmospheric pressure is unusual in marine and power plant boilers. Some heat and pressure is maintained to make it quicker to bring them back on line and and reduce thermal stress. 

     

    The bit where you want a huge vacuum is the condenser. Condenser vacuum is critical to performance and efficiency in a ranking cycle steam plant. They have vacuum breaking valves.

     

    I havnt worked on anything over 180 psi and the highest pressure boilers I have seen were 415psi

    • Like 1
  4. Heres a question that I have been mulling over for a while.

     

    When you shut down a Marine (Or Stationary) Boiler you close the stop valve which is steam tight.

     

    So as the boiler cools the steam will condense and the water in the boiler will contract.

     

    So, does this create a vacuum on the boiler?

     

    If not, why?

     

     

  5. It struck me recently.....

     

    There were very few 'public' Narrow Gauge railways in the UK

     

    All I suggest unique and mostly associated with specific industries

     

    So in terms of being a 'public' railway how did the W&L manage to hang on into the mid 50's?  Its easy to see how WW2 might have extended its life with petrol shortages but it carried on hauling freight until 1956, despite the obvious costs of transhipment onto a line only 8 miles long.

     

    Did it have some sort of a Fairy Godmother in BR Management?

  6. I was out in the garden yesterday afternoon, I dont live that far from traffic lights on the main road and all I can say is that I hope to god many of the drivers passing through were not wearing seat belts and that a tree leaps out in front of them for the sakes of all of us

    • Like 2
  7. All of these of course are why the law should treat dangerous drivers in the same way as gun crime.and prioritise the safety of the Publoic and the Police.

    • Agree 1
  8. In the early 80's I was coming down Black Dog Hill on the A36 late one night when a Citroen Dyane shot past me.

     

    He must have been pedal to the metal all the way from Salisbury

    • Funny 3
  9. 3 hours ago, Reorte said:

    That one had passed me by. Another reason to be extremely depressed about the suspicious, untrusting, disrespectful, intrusive excuse of a world we now live in. God I hate it, it's all so dehumanising. No doubt the usual suspects will turn up shortly to berate me for not finding everything we do being monitored a wonderful prospect.

     

    Hoping that in a few years conversions of ordinary, bog-standard current or slightly older cars (let's say 15-20 years old) to electric will be practical and affordable. Without the past rust problems that should give a platform that should last indefinitely, without all the modern "features" I'd much rather do without.

     

    So, if you are involved in an accident then you dont want investigators to be able to find out exactly what happened?

     

    Driving is a licenced activity not a right and it carries the potential to cause death or serious injury.  If someone is driving like a we have the right to know so appropriate action can be taken.

    • Like 2
    • Agree 1
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