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Blueprints

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

  1. 240P15

    240P15 Well-Known Member

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    Hello!:)

    I recently found this blueprint for sale at Ebay, but with little more information: https://images.antiquemapsandprints.com/scansr1/P-7-013447a.jpg

    To me it seems like the 4-cylindered tank engine from North Stafford Railway?

    regards
    Knut
     
  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 Resident of Nat Pres

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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 Part of the furniture

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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 Part of the furniture

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  6. LMS2968

    LMS2968 Part of the furniture

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    Skinley.
     
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  7. 240P15

    240P15 Well-Known Member

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  8. Ploughman

    Ploughman Part of the furniture

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  9. flying scotsman123

    flying scotsman123 Resident of Nat Pres

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    240P15 likes this.
  10. 240P15

    240P15 Well-Known 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 Well-Known 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 Resident of Nat Pres

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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 Part of the furniture

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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 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 Member

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

    240P15 Well-Known Member

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

    ruddingtonrsh56 Member

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

    RLinkinS Member

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    Also on Tugboat Annie T Annie 1b.jpg
     

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  19. LMS2968

    LMS2968 Part of the furniture

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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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