Flatiron2000

On 19/06/2022 at 09:00, Compound2632 said:

 

LMS Locomotive Profiles No 14? 

 

And of course there are several preserved examples.

Thanks Compound2632 for your reply.

Does anyone know where I would be able to find images detailing the motion of an LMS Standard 3F?

Thanks for the reply Covkid, and apologies for my delayed response!

I had planned to use cab drawings of other locomotives built around the same time as the Flatirons, however I have found the drawings I was looking for at the NRM. The cab layout is depicted in great detail in Derby Works Drawings 07-7026 and 07-2027, titled 'Pipe and Rod Arrangement' and 'Pipe and Rod Arrangement End Views' respectively. The search catalogue does not specify that these drawings are of the Flatirons which is why I did not initially find them.

On 05/10/2020 at 11:06, Compound2632 said:

Good drawings or overhead views of this style of safety valve cover are a bit hard to come by. The oval "tin" hides from view the pair of Ramsbottom safety valves and spring and the bit sticking up behind is an additional lock-up safety valve, set to lift at 5 psi higher than the Ramsbottom valves. This arrangement was introduced with the Belpaire 4-4-0s (with a cover closer in outline to the inverted trumpet cover used for the lock-up valve on earlier boilers). The plainer style came in with later batches of the Belpaires and the first Compounds; it was also used on the round-topped H boiler (as fitted to the Flatirons) and on the boilers used to re-boiler various S&DJR engines in the early years of the 20th century. On these round-topped boilers, the cover sits on a flat plinth, pear-shaped in plan. (But with straight sides - perhaps more like a cam than a pear?) Later Belpaire boilers of all sizes - such as used to rebuild standard goods engines to 3F and 2F Belpaire configuration and on the 483 Class 4-4-0s, along with the Deeley Compounds and 999s - dispensed with the oval cover, leaving the Ramsbottom valves in full view. There was some experimentation with Ross Pop valves after the Great War but these didn't become standard until LMS days.

 

Ref. S. Summerson, Midland Railway Locomotives Vol. 1 (Irwell Press, 2000) pp. 64-66.

I know this thread is pretty old but I thought I'd add that there is an overhead view of this style of safety valve cover in Derby Works Drawing 06-6965 titled 'Clothing Arrangement'. The drawing is specific to the 0-6-4T Flatirons and a copy can be viewed at the National Railway Museum Archives at York, though the catalogue does not specify the locomotive class.

Hi all,

I am planning on creating a computer 3D model of the 0-6-4t 2000 Class 'Flatiron' Locomotives as originally built. I have managed to obtain some wonderfully-detailed scans of some of the original Derby Works drawings from the Midland Railway Study Centre. The problem I have is that the drawings do not show any of the cab detail or firebox fixings. I have searched through the NRM's Derby Drawing Register and the HMRS website but to no avail. Does anyone know if such a drawing exists?

If not then I'll just have to compromise, which isn't so bad considering how enclosed the cab is. On the HMRS website, I did see a some firebox fixings arrangement drawings for various 0-4-0t locomotives built around the same time as the Flatirons. Would they have had similar cab layouts? I also noted that the Flatirons were originally built with H1 class boilers. Would other locomotive classes with the same H1 type boilers have had similar cab layouts?

Thank you in advance.