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Blueprints

Discussion in 'Steam Traction' started by 240P15, Dec 22, 2017.

  1. 240P15

    240P15 New Member

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  2. Ploughman

    Ploughman Part of the furniture

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    There is a whole series of these covering Loco's, wagons and coaches of all types.
    Mainly aimed at the scale modeller.
    Cannot remember the name of the main producer though.

    We had a set donated and sold them off at a couple of Quid per sheet.
     
  3. flying scotsman123

    flying scotsman123 Part of the furniture

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    Definitely the NSR 4 cylinder D class, I have a drawing of it that matches it virtually perfectly.

    Sent from my Moto G (4) using Tapatalk
     
  4. huochemi

    huochemi Active Member Friend

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    Indeed. It is NSR No 23 described in the January 1923 The Locomotive magazine. It was converted to a tender loco. LMS No 2367.
     
  5. LMS2968

    LMS2968 Well-Known Member

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  6. LMS2968

    LMS2968 Well-Known Member

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    Skinley.
     
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  7. 240P15

    240P15 New Member

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  8. Ploughman

    Ploughman Part of the furniture

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  9. flying scotsman123

    flying scotsman123 Part of the furniture

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    240P15 likes this.
  10. 240P15

    240P15 New Member

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    Here is another interesting drawing I recently found at Ebay. It shows ,what i think ,is a proposed 2-10-4 steam locomotive for the South African Railways. Very exciting with this "planned but never realised" locomotives!

    This one seems to be planned as a partially streamlined engine:
    https://i.ebayimg.com/images/g/W6YAAOSwq7JUHHIA/s-l1600.jpg

    Regards

    Knut
    :)
     
  11. toplight

    toplight Member

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    Not heard of this NSR loco before, Found a picture of it online. Why would such a small tank loco be made with 4 cylinders ? Apparently there was only 1 made in June 1922.

    [​IMG]
     
  12. flying scotsman123

    flying scotsman123 Part of the furniture

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    I believe the idea was an experiment to look at faster acceleration for stop/start services. Never really got a fair trial as it was quickly absorbed into the LMS who didn't really know what to do with and so, as noted, gave it a tender.
     
  13. huochemi

    huochemi Active Member Friend

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    It had the cranks set to give eight chuffs per revolution, and the designer (Hookham) seems to have been motivated to build this loco to test the benefits of this layout.
     
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  14. RLinkinS

    RLinkinS New Member

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    The South African Railways did have a single prototype 2-10-4, the class 21. According to Wikipedia the original design included rotary cam poppet valve gear in accordance with the ideas of A G Watson. When he was replaced by W A J Day in 1936 the loco was redesigned with piston valves and Walshaerts valve gear. The streamlining is similar to the LNER P2 Cock O' The North (1934) so perhaps a draughtsman at North British drew this up as as a suggestion when the design was being worked up.
     
  15. clinker

    clinker New Member

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    A 'True' four cylinder then.
     
  16. 240P15

    240P15 New Member

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    Thank you very much!
    This was interesting information:)
     
  17. ruddingtonrsh56

    ruddingtonrsh56 New Member

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    That's the same arrangement as is present on Lord Nelson, is it not?
     
  18. RLinkinS

    RLinkinS New Member

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    Also on Tugboat Annie T Annie 1b.jpg
     

    Attached Files:

  19. LMS2968

    LMS2968 Well-Known Member

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    If those things ahead of the outside valve chests are rocking levers driving the inside valves, then surely this engine gives four beats per revolution?
     
  20. Steve

    Steve Resident of Nat Pres Friend

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    When I first read your post I went looking at NSR 23 and thought what rocking levers! However, regarding Tugboat Annie, it certainly looks like it!
     

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