Blueprints

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

 

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.

 

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

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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.

 

Deleted

 

Skinley.

 

Thanks for reply all!

It`s certainly looking great in the original livery: https://chasewaterstuff.files.wordpress.com/2014/03/nsrhookham060.gif

Knut

 

Quick google of Skinley Drawings https://www.google.co.uk/search?ei=.....0...1c.1.64.psy-ab..0.1.70....0.sazKcCV7PMY

 

Indeed, I'm something of a fan of the NSR livery:



Far right loco obviously work in progress!

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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

 

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.

 

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.

 

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.

 

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.

 

A 'True' four cylinder then.

 

Thank you very much!
This was interesting information

 

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

 

Also on Tugboat Annie

 

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?

 

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!