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| Sand-drying plant - Scratchbuilding. - More Practical Help - Your Model Railway Club | ||||||||||
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Perry Erstwhile scratchbuilder 
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Stubby47 wrote: Don't tell me you've got no imagination !! You can obviously 'see' what you want to build, right down to the last little hinge or piece of pipework, before you start, and then go ahead and build it completely to plan. That's my point, Stu. As long as I can see what I want to build, be it in a book, photograph or whatever, I can pretty much build it. I just find it almost impossible to build anything purely from my imagination.  I think this little building should fit in nicely once it's painted and weathered though. It didn't take long to build at all. Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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Perry Erstwhile scratchbuilder
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A coat of acrylic primer has been airbrushed on and the new chimney fabricated and fitted. Another coat of primer to go on, especially as the chimney doesn't have any yet, and it should be ready for painting. Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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Perry Erstwhile scratchbuilder
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I've just realised that I have not added a photo of the sand-drying plant after it was painted, so to remedy that, here is it: Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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MaxSouthOz Admin 
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It's turned out great, Perry. Can you run us through how it actually works?
____________________ Max Port Elderley |
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ddolfelin Straight man to the stars. 
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It has to wait for the wheels to be fitted, Max. Top notch, Perry. ____________________ http://dddioramas.webs.com/ 11 + 2 = 12 + 1 |
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Perry Erstwhile scratchbuilder
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MaxSouthOz wrote: It's turned out great, Perry. Can you run us through how it actually works? The 'cannibalised' loco, whose firebox was inside the building, provided the heat. Sand was brought in to the building and presumably spread out somehow, perhaps on trays, so that the heat could dry it. Once it was dry it was taken away and stored until needed for the loco sand boxes. By allowing dry sand to run onto the head of the rails through small pipes, the loco wheels were able to gain a lot more grip when it was needed. Damp sand would not run through the tubes and would tend to clog them, hence the need for it to be dried. Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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MaxSouthOz Admin
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Interesting. Sounds very labour intensive.
____________________ Max Port Elderley |
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Robert Deceased Member 
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Yet another cracker for our Forum Index from Perry. Cheers mate.
____________________ The time in Spain is : Barchester |
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Petermac Moderator 
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It's certainly a good looking model Perry.  As Max said, very labour intensive, but then most things to do with steam engines were !! Whilst I suppose an old loco boiler might be readily at hand, it does seem a strange method of drying something. Steam is wet by it's very nature and, unless they needed it elsewhere, why would they bother to produce it just because they needed a source of heat ? It's unlikely that they would use the hot water for central heating because the drying plant wouldn't operate continuously - only when they needed the sand. I'd have thought an oven would be far more sensible as a means of generating heat. It could be of course, that the "boiler" was empty and just used as a heat chamber to get some "draw" into the fire. There are a couple of things I noticed in the photos. Firstly, it's one heck of a tall chimney to have no stays - I wonder how it coped in a gale and secondly, I do think that "thing" was a ventilator for this plant. If you look at photos of factories from pre-war right through to the 60's, most of them had rows of those round ventilators. Given all the "steam" that might be generated by the drying process, they would have to extract that up near the ridge to avoid drowning in the condensation. (I don't hold with the shadows being wrong theory  - I think they're probably spot on if the vent exited on the far pitch of the roof.)____________________ 'Petermac |
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Chubber Casseroled Badger 
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Harold Gasson, [GWR Fireman] in his autobiographies refers to such a boiler at Didcot. Usually the redundant boiler of a Dean Goods was used at 165lbs/sq.in. The boiler was lifted off and modified at the boiler-shop by having the regulator removed and replaced by a large steam valve and other back-head fittings removed and blanked. The boiler was placed on an cradle and the end of the house bolted on and a 30ft chimney added supported by stay wires. The town main water supply was connected to the injectors. Its main purpose was to provide steam for heating, boiler wash-outs, steam lance cleaning, turntables, capstans etc. It was apparently an unpopular duty for the Fireman on 'Spare Duty' as he was at everyone's beck and call and under the eye of the Foreman. Fuelled by the pit sweepings, rubbish, oily waste but coal was stolen from nearby locos. Re sand, from what I have learned from old footplate men, it was simply shovelled from one side of the shed to the other until it was dry, with a No.8 shovel! I hope this has been of interest, Doug ____________________ 'You may share the labours of the great, but you will not share the spoil...' Aesop's Fables "Beer is proof that God loves us and wants us to be happy" - Benjamin Franklin In the land of the slap-dash and implausible, mediocrity is king |
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Petermac Moderator
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dooferdog wrote:
 It certainly is Doug !! No wonder they were pleased when smelly diesels came along ..........____________________ 'Petermac |
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Perry Erstwhile scratchbuilder
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Thanks, Doug. Very interesting. I can add stay wires to the chimney once the building is in place on the layout. I couldn't see any on the photo, but I doubt if they would have shown up anyway. I can only just recall seeing the prototype building when I was a child and can't remember any details. It was demolished many, many years ago. Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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John Dew Full Member 
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Thats a super model Perry..........looks great I know your model is based on a prototype........I wonder if the boiler was also used to supply steam,hot water, heat for a number of other purposes as described by Doug and that just happened to be the most convenient location for the boiler? Its very rare I can talk with any degree of authority about UK artefacts but in this instance I spent a day at Didcot and took a load of photos of the Sandhouse there which was I believe a GWR standard design.....Brick and Corrugated Iron.......there was no outside boiler or stack and I often wondered where they got the heat from........I suspect it may have been piped in from wherever Doug's boiler was located......maybe I will try and dig further Whatever.....let me repeat....a great model..........I am really looking forward to seeing all these units in place Kind Regards ____________________ John Granby III Lenz DCC,RR&Co Gold V9 B1 Windows 10 |
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Perry Erstwhile scratchbuilder
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Thanks, John. I have little doubt that the static boiler would have been used for various other tasks apart from providing the heat to dry the sand. It's a great pity that I have been unable to discover anything more about something I used to walk past when I was a child. I even contacted the local history group in that area but they were unable to provide any more information.One thing that does strike me as a little curious is the location of the prototype. It was sited between the station and the coal yard, not in the engine shed area. I would have thought that loco sand boxes would have been filled when the loco was being coaled, water and oiled and that therefore the source of the dry sand would have been close by. All very strange. Still, it made an unusual and interesting subject to model. Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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Petermac Moderator
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Maybe those "spare duty" firemen Doug talked about carried it over to the loco shed in buckets Perry. Afterall, labour was cheap and plentiful in those days. As I said, everything about steam locos was hard and dirty work -but they were wonderful beasts in spite of it. ____________________ 'Petermac |
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georgejacksongenius Kettle Watcher 
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Just playing catch-up here.Lovely model Perry!! I shouldn't worry about any "lack of imagination" when it comes to your modelling,as your powers of observation and ability to re-create things in model form are up there with the very very best! Top job,yet again. Cheers,John.B. |
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Perry Erstwhile scratchbuilder
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Thanks, John.B. Your comments are much appreciated, if ill-deserved.  Perry ____________________ Due to cutbacks, the light at the end of the tunnel has been switched off. |
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