RLWP
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Post by RLWP on Nov 20, 2012 12:48:32 GMT
I acquired this engine quite a while ago when a friend's father died. He had begun this engine, when I got it he had pretty well finished the tender, made the frame, machined up the motionwork, bored the cylinders, finished the bogie and a few other bits. His work is to an excellent standard - too good in fact. One of the first things I did was to take a file to the axleboxes so that the wheels could stay on the track. I erected the motion, modified the piston valve bores, made a set of piston valves and eventually got the chassis running on air. The loco ran for three days like this at one of the Town and Country Festival events at Stoneleigh. She then returned to my workshop and spent around twenty years sleeping in a cupboard I'll take some pictures of what I have later, meanwhile, here's a picture of the blower pipe cunningly disguised as the brake ejector: Richard MORE: There is a little more on this project here: modeleng.proboards.com/index.cgi?board=general&action=display&thread=7738
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jma1009
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Post by jma1009 on Nov 21, 2012 12:43:30 GMT
richard,
excellent work on the vacuum exhaust ejector, but shame it isnt real. on my 3.5"g GWR KING the vacuum fitting on the backhead controls the steam to the vacuum ejector alongside the boiler and controls the vacuum release. at the front of this fitting is the steam from the blower valve on the manifold which then goes through the hollow longitudinal stay to the front of the boiler.
have a look at don young's 3.5"g SAINT CHRISTOPHER boiler and his 3.5" COUNTY CARLOW boiler for the standard No.1 boiler in miniature. i think you will find them superior and what you want compared to LBSC's LICKHAM HALL boiler.
cheers, julian
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RLWP
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Post by RLWP on Nov 21, 2012 13:05:53 GMT
You're lucky it wasn't a plain pipe Julian. All this fancy Swindon nonsense
I'll have a look at the Don Young stuff, thank you
Richard
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RLWP
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Post by RLWP on Nov 21, 2012 13:31:46 GMT
Preliminary results: County Carlow has a Standard number 4 boiler St Christopher has a parallel sided firebox Richard MORE: 1000 class (County 4-6-0, Standard 15 boiler) also has a parallel firebox:
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jma1009
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Post by jma1009 on Nov 21, 2012 23:02:49 GMT
here's the vacuum ejector off my KING sorry if i lead you down a bit of a wild goose chace with the don young boilers. however i see no reason why you shouldnt reduce SAINT CHRISTOPHER's rear firebox domension to produce the tapered firebox sides and top. i would prefer don's boiler design to LBSC's. cheers, julian Attachments:
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Post by Deleted on Nov 21, 2012 23:33:51 GMT
Hi Richard
Nice start to your build thread.. regarding suitable boilers and I'll say here first that I'm no expert, however since I have both LBSC and Don Young drawings for what is in effect the same boiler ( Gresley and modified thompson version pacific) all be it in different gauges I'd have to agree with Julian in choosing a Don Young design over LBSC. To be honest there is no comparison in detail, authenticity and design.
Hope this helps
Pete
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jma1009
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Post by jma1009 on Nov 21, 2012 23:44:07 GMT
as a bit of an aside, making the boiler cleading for a 3.5"g GWR tapered barrel belpaire firebox loco is more difficult than making the boiler IMHO!
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Post by Deleted on Nov 21, 2012 23:48:08 GMT
as a bit of an aside, making the boiler cleading for a 3.5"g GWR tapered barrel belpaire firebox loco is more difficult than making the boiler IMHO! As I have found out with my Brit.......! JB
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Post by Shawki Shlemon on Nov 22, 2012 8:21:14 GMT
In 5" gauge the difference in performance between a tapered and straight barrel boilers is negligible from my experience . However a model is supposed to be like the mother and that is the key and is the choice of the builder . Making the tapered cladding is a challenge if one is not a sheet metal worker ( I am not ) particularly at front and back ends .That was the reason for building DukeDog instead of BullDog but sometimes one has no choice . Depending on how accurate one wants his model , a straight boiler barrel covered with a tapered cladding looks and operate just as good . I have even seen a C38 Pacific engine with round top boiler covered with Belpair type cladding and works as well as the others .I only found out when I was asked to do the re test on it .
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RLWP
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Post by RLWP on Nov 22, 2012 10:21:43 GMT
If you look over the Don Young St Christopher and Curly's Hall boilers, they are nearly identical - certainly in the construction rather than the dimensions. So in terms of 'detail, authenticity and design' they're both equally wrong in detail and authenticity, and identical in design.
I'm perfectly happy with the long cone barrel, it's the firebox where the various designs are out. Basically, LBSC and Don decided to continue the firebox sides straight back (in plan) to the cab, where Churchward reduced the width. The result is a very 'model' looking boiler in the cab, not what I want to build.
Going off-topic. Is anyone here a member of either the Coventry or the GEC Coventry clubs? I have tried sending messages to both through their websites, neither have responded over a week later
Richard
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Post by drumkilbo on Nov 22, 2012 10:48:57 GMT
Interesting thread that I will follow, FWIW, here's a couple of pics of a boiler for Lickham Hall made for me by Western Steam a couple of years ago, when it's offered up to the smoke box the cladding sits perfectly, no room for insulation under it though. Ian Attachments:
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Post by drumkilbo on Nov 22, 2012 10:51:00 GMT
and this one Attachments:
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Post by drumkilbo on Nov 22, 2012 10:52:35 GMT
and this one Attachments:
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Post by drumkilbo on Nov 22, 2012 11:00:00 GMT
and finally Attachments:
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Post by cplmickey on Nov 22, 2012 12:23:41 GMT
My drawings say Lifford Hall but I suspect they are the same ones really. This boiler wa the first one I ever made and I found it a good introduction to boiler making being relatively straightforward and easy to handle. I think the most difficult bits were the top feeds.
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RLWP
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Post by RLWP on Nov 22, 2012 12:24:50 GMT
I see that Western have chosen to use multiple stays between the firebox crown and the outer wrapper rather than Curly's girder stays. I had been thinking of doing that myself
Richard
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RLWP
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Post by RLWP on Nov 22, 2012 12:26:58 GMT
My drawings say Lifford Hall but I suspect they are the same ones really. This boiler wa the first one I ever made and I found it a good introduction to boiler making being relatively straightforward and easy to handle. I think the most difficult bits were the top feeds. This will be my second boiler, the first being a simple, round topped one for Petrolea. I'm not sure about the top feeds, I'm inclined to make them dummies and fit clacks further back like the Western boiler Richard
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RLWP
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Post by RLWP on Nov 22, 2012 12:30:57 GMT
Interesting thread that I will follow, FWIW, here's a couple of pics of a boiler for Lickham Hall made for me by Western Steam a couple of years ago, when it's offered up to the smoke box the cladding sits perfectly, no room for insulation under it though. Ian Ian, can you tell how Western have handled the firebox forward plate? It looks like they have made it in three parts - a bottom piece between the outer wrappers and two fillets for the top corners Richard
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Post by ejparrott on Nov 22, 2012 13:26:42 GMT
Going off-topic. Is anyone here a member of either the Coventry or the GEC Coventry clubs? I have tried sending messages to both through their websites, neither have responded over a week later Richard No, but I know the GEC boiler inspector very well....I can ask him if you like? what was the question about and I'll pass the message
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RLWP
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Post by RLWP on Nov 22, 2012 13:41:53 GMT
To get the boiler checked, tested, certified and insured, I would like to join a local club. Those are the nearest to me in Kenilworth
Richard
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