Andrew Honychurch | 27/03/2022 16:33:48 |
19 forum posts 10 photos | Thank you Phil. Thats good to know. When you consider the cylinder and valve chest ( excuse my terminology if its incorrect I will learn!), do the various components have gaskets to seal them, or do they just fit together in perfect machine fit? Also I can see from various photos how the superheated steam enters the cylinder through the pipe in top of the valve chest, but I cannot see where the exhausted steam exits. Should there be a pipe at the rear of the cylinder feeding into the stack? I am going to have to buy myself a good book on the subject of Model Locos. thanks for all the help. |
Weary | 27/03/2022 16:47:15 |
421 forum posts 1 photos | The sealing surfaces will have gaskets to seal them, tho' during construction they may not be fitted. There are a number of suitable methods of sealing ranging from 'oiled brown paper' through PTFE sheet, to high tech liquid gasket type sealants. The exhaust steam exits through the top of the cylinder. If you carry-out an image search for 'Hall Class Loco' (or similar) you will see the pipes running from the top of the cylinders into the smokebox. There should be an 'inlet' on the rear face of the cylinders around valve-chest level through the frames. I can see the hole in the frames to accommodate the pipework and connection in one of your pictures which shows the side of the loco & frames without a cylinder. Phil Edited By Weary on 27/03/2022 16:49:50 Edited By Weary on 27/03/2022 16:50:55 Edited By Weary on 27/03/2022 16:52:20 Edited By Weary on 27/03/2022 16:55:48 |
Andrew Honychurch | 27/03/2022 17:59:06 |
19 forum posts 10 photos | thank you Phil. You have filled in some information I didnt have. I will try to find out more and certainly get the drawings from Maxitrak. I was rather thinking that some other GWR model parts could well be made to look correct. I believe the Manor and Castle Classes are pretty similar and designed by the same Engineer. Collett I think. I shall get myself onto MECH as you say and try to learn more. Its one of those situations where I worked with my late Father in the workshop for so many years but my interests were predominantly with vehicle restoration and I dont believe I ever asked him about the background to this wonderful loco. I do have several other engines that he also owned so perhaps in the fullness or time I can prevail on the collective goodwill and knowledge displayed here to ask advice on those as well? Thank you chaps. Andrew
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duncan webster | 27/03/2022 18:59:09 |
5307 forum posts 83 photos | The pipes from the top of the cylinder block to the smokebox on the full size Hall are steam inlet. I strongly suspect that the model is slide valves, which usually have the steam and exhaust connections from the face which bolts up to the frame, with suitable cut-outs in the frame of course. However, photos show a connection to top of steam chest, so further investigation required. |
Andrew Honychurch | 27/03/2022 19:31:29 |
19 forum posts 10 photos | Thank you Duncan. I thought it maybe inlet on the top, and there is a cutout in the frame for another pipe. I need to get the drawings and then I should be able to work out how it all works. many thanks Andrew |
Weary | 27/03/2022 19:38:27 |
421 forum posts 1 photos | Yes! Apologies for my mistake and thereby adding confusion. The model is indeed slide-valve and the inlet is at the top with the exhaust through the frames as Duncan writes. When you get the drawings this will be clearer. There is a four page article about a similar 5" gauge model 'Hall' in Model Engineer magazine, Vol.80, No.1987, June 8th 1939, pages667-670, which although unattributed appears to have been written by Greenly. I have uploaded Greenly's dimensioned General Arrangement drawing to my album. You may be able to compare principal dimensions with what you have? Thanks to Duncan for the prompt correction.
Edited By Weary on 27/03/2022 19:56:43 |
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