ozzyo Posted February 15, 2012 Author Share Posted February 15, 2012 If the loco had slide valve then the presure release valves would not have been needed, I am not too sure if Bulldogs had slide valves replaced by piston valves like the City's David Hello David & N15 class, it will be seen but not any large amount due to it being under the smoke box and between the frames. The G/A drawing that I've worked off is for the Earls, contemporary to the Bulldogs and had piston valves. In this drawing No.1 is the snifting valve and No. 2 is the cylinder pressure relief valve In this drawing No.1 is the base for the snifting valve and No.2 is the end of the cylinder pressure relief valve. You can clearly see the piston valves at the bottom of this view OzzyO. Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted February 15, 2012 Share Posted February 15, 2012 The drawing you have is of a piston valve loco as you can see the circles of the valves under the cylinders which had presure release valves, As built I would think bulldogs would have been slide vales but may have been converted later I will have to check the RCTS book David Link to post Share on other sites More sharing options...
ozzyo Posted February 15, 2012 Author Share Posted February 15, 2012 Is this one of those things that never getsseen or is it visible on the finished loco? I do not know about this class Hello N15 Class, all, this is what you see when it's fitted to the body and fitted to the frames. It's not a lot and when it's painted black even less will be seen. Makes fitting the frames to the body a bit of a bu99er, fitting the four axle boxes making sure that the motion bracket etc. are in place. All good fun. OzzyO. Link to post Share on other sites More sharing options...
N15class Posted February 15, 2012 Share Posted February 15, 2012 .Very nice bit of model making. At least there is someting showing downinthose dark recesses Link to post Share on other sites More sharing options...
buffalo Posted February 15, 2012 Share Posted February 15, 2012 From RCTS Locomotives of the GWR Part 7: "New type cylinders with piston valves date from 1912 and were fitted when replacements were required in succeeding years." Nick Link to post Share on other sites More sharing options...
ozzyo Posted February 15, 2012 Author Share Posted February 15, 2012 From RCTS Locomotives of the GWR Part 7: "New type cylinders with piston valves date from 1912 and were fitted when replacements were required in succeeding years." Nick Cheers for that Nick as this is going to be at the last doors.Circa 1949 OzzyO. Link to post Share on other sites More sharing options...
Western Star Posted February 15, 2012 Share Posted February 15, 2012 If the loco had slide valve then the presure release valves would not have been needed, I am not too sure if Bulldogs had slide valves replaced by piston valves like the City's David I think that GWR engines required pressure relief valves in each cylinder end cover plate irrespective of the valves.... if the regulator was open and there was water in the cylinders then compression of that water might not push the slide valves away from the ports in the steam chest. Link to post Share on other sites More sharing options...
ozzyo Posted February 17, 2012 Author Share Posted February 17, 2012 Hello all, I'm going to do this post a little different to my normal post in that I'm going to show after grit blasting (AGB) and after ultrasonic cleaning (AUSC). The grit blasting was only a quick job just to clean up the bodywork and the ultrasonic cleaning just to remove the detritus, as the locos going for a run out on the owners layout tomorrow. I'll post some photos later when I've got the body on the frames. R/H side of the body AGB As above AUSC L/H of body AGB As above AUSC Smoke box AGB As above AUSC Cab AGB As above AUSC After the body had been through the USC in cleaning fluid at about 60 deg. I drained the tank (keeping the fluid) this was was left in the bottom of the tank after it was wiped out on kitchen roll The body was then put in the USC just using hot water at about 60 deg. to remove any residue of the cleaning fluid and this was whats left As a first time use of this new cleaner I'm happy with the result. It's just going to be a bit of a learning curve with the new M/C. One thing that I do like is that the loco body will fit in it with ease, Just can't cover the cab roof in one go on this loco. But we will see. OzzyO. Link to post Share on other sites More sharing options...
Kenton Posted February 17, 2012 Share Posted February 17, 2012 I am a little surprised at the results. AGB seems to leave the brass very dull, I was expecting it to come out with an almost polished shine. AUSC seems to leave a staining on the surface, some residue of the type of cleaning fluid. Neither technique is one I am familiar with - and still underwhelmed. Though I can see the GB as providing a more even key to the brass for painting. (I use an old toothbrush and Vim, followed by a 50'C spell in the dishwasher.) Link to post Share on other sites More sharing options...
ozzyo Posted February 17, 2012 Author Share Posted February 17, 2012 I am a little surprised at the results. AGB seems to leave the brass very dull, I was expecting it to come out with an almost polished shine. AUSC seems to leave a staining on the surface, some residue of the type of cleaning fluid. Hello Kenton, all, " I am a little surprised at the results", AGB, the surface has been hit with thousands of aluminum oxide grit particles at about 60 Psi. so why would you expect it to look shiny? I do not understand why a lot of kit builders want the brass to shine before the paint is put on. If the brass has a polished surface it will be harder for the primer to adhere to it. AUSC, As you can see, it may leave some staining but nothing that the paint will not cover. As the metal is clean and has a nice surface finish, there should be no problems. OzzyO. Link to post Share on other sites More sharing options...
JeffP Posted February 17, 2012 Share Posted February 17, 2012 Every time you show this, I go away and check the prices at machine Mart, etc. Then I sigh and do something else. Link to post Share on other sites More sharing options...
ozzyo Posted February 18, 2012 Author Share Posted February 18, 2012 Hello all, the Bulldog had a bit of a run out on the owners layout today. YES. I, wanted to put it on load 12 just to see what it could do, but I was told F.T.O. OzzyO. But she did look good double heading with the Castle. Photos to follow, maybe? Dave's not to sure about naked locos. The King well happy. OzzyO. PS. the new tender arrived while I was out today, so I think that R.M. may have to pay up ( R.M.S.D.). It should have arrived Fri. before 13;00. Link to post Share on other sites More sharing options...
Kev_Lewis Posted February 19, 2012 Share Posted February 19, 2012 Photos to follow, maybe? I'd certain like to see what she looked like on the layout. Link to post Share on other sites More sharing options...
Kev T Posted February 19, 2012 Share Posted February 19, 2012 It looks like the photos show some white metal on the loco. If so how does this stand up to the grit blasting? Kev Link to post Share on other sites More sharing options...
steve fay Posted February 19, 2012 Share Posted February 19, 2012 I picked up my castle yesterday so here is a picture for you all to see. Sorry about the quality my camera dose not seem to like close up images In a few days I will try and post a link to a video of this loco and my king and a few others in action including the Duke. Link to post Share on other sites More sharing options...
Kev_Lewis Posted February 19, 2012 Share Posted February 19, 2012 I picked up my castle yesterday so here is a picture for you all to see. Sorry about the quality my camera dose not seem to like close up images In a few days I will try and post a link to a video of this loco and my king and a few others in action including the Duke. That is looking very, very, very, very, very nice! I'll look forward to the video. Link to post Share on other sites More sharing options...
steve fay Posted February 19, 2012 Share Posted February 19, 2012 The picture is much better once enlarged. Theres a few more on my Ranelagh bridge thread in layout topics. The king is from Ozzy as well Link to post Share on other sites More sharing options...
Kev_Lewis Posted February 19, 2012 Share Posted February 19, 2012 Yeah, there wasn't enough room for all the very's required for a comment on the full size photo. I'm off to look at your layout thread now Steve. A great build by Ozzy. Who painted it? Link to post Share on other sites More sharing options...
steve fay Posted February 19, 2012 Share Posted February 19, 2012 Yeah, there wasn't enough room for all the very's required for a comment on the full size photo. I'm off to look at your layout thread now Steve. A great build by Ozzy. Who painted it? Kev It was painted by Conrad Cooper, All the lining is done by hand, The paint is from Chriss Wesson. Conrad does a superb job. I wish there was a bit more movement on the layout but it is going rather slowly. All the best Link to post Share on other sites More sharing options...
steve fay Posted February 19, 2012 Share Posted February 19, 2012 I just thought I would add in one more picture for you all showing the mechanical lubricators of both the Castle and the King. The detail in this area is imense, The King was built before Ozzy started his thread. She was painted By Conrad as well and has been weathered by Fred Lewis ( Welsh Wizard ) who in my opinion does the best weathering Ive seen. There are more pictures of the king on the Ranelagh Thread. I thought I would add a few pictures here as we dont usually get to see the locomotives once there painted. On the video that should get linked up soon there should be some footage of the 44XX that was running on this thread back late last year. She really looks a treat and Im sure Mike will be over the moon with it. The 44 will be taking a trip to see the Wizard shortly as well. Link to post Share on other sites More sharing options...
ozzyo Posted February 20, 2012 Author Share Posted February 20, 2012 Hello KevT all, I've not seen any detrimental effects in grit blasting white metal, all I have seen is a nice finely abraded surface for applying primer to. In this photo the white metal backhead has been gritblasted I hope this helps OzzyO. Edit; Steve, I thought that you would have put a photo of the 44xx up by now! Link to post Share on other sites More sharing options...
steve fay Posted February 20, 2012 Share Posted February 20, 2012 OK here a pair of pics of Mikes 44XX before it goes for a weathering. Enjoy, enlarge for a better quality image. This loco was also painted by Conrad Cooper. Link to post Share on other sites More sharing options...
ozzyo Posted February 20, 2012 Author Share Posted February 20, 2012 Thanks for that Steve, I'm happy with the look. ATB OzzyO. Link to post Share on other sites More sharing options...
Kev_Lewis Posted February 20, 2012 Share Posted February 20, 2012 Thanks for posting all the photo's Steve. You have a great collection of loco's. I'm especially liking the 44XX, but then I do have a soft spot for Great Western tanks. You may have seen my 14XX build. Apologies to OzzyO for all the thread hijacking we've been doing. Link to post Share on other sites More sharing options...
steve fay Posted February 20, 2012 Share Posted February 20, 2012 Thanks for posting all the photo's Steve. You have a great collection of loco's. I'm especially liking the 44XX, but then I do have a soft spot for Great Western tanks. You may have seen my 14XX build. Apologies to OzzyO for all the thread hijacking we've been doing. Kev Yes Ive been following your build, Im thinking of one of Scorpios 97XX condensing pannier, This is a must for a west London layout. The 44XX is a lovely little loco, Im sure Mike will be over the moon with it. Link to post Share on other sites More sharing options...
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