mbrown
Elder Statesman
Posts: 1,719
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Post by mbrown on Aug 19, 2019 12:45:42 GMT
I think the broad gauge 4-2-2s (and doubtless others) had the gauge glass shut off handle extended through the cab side to a lever outside the cab. This looks like a kind of continuation of that principle - rather as if the shut off lever gradually migrated from outside the cab, to this intermediate point, and finally to close beside the gauge frame...
The fitting to the left of the gauge frame looks like a bracket for a gauge glass lamp - it has a vertical socket for the lamp and I suspect can be swung from left to right to get the illumination in the right place.
Can't help about the lubricator or the box above the fire door I am afraid.
Malcolm
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Post by ettingtonliam on Aug 19, 2019 15:12:30 GMT
When was steam heating for carriages introduced to the GWR? For that matter, where is the ATC box, or was this photo too early for that?
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don9f
Statesman
Les Warnett 9F, Martin Evans “Jinty”, a part built “Austin 7” and now a part built Springbok B1.
Posts: 960
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Post by don9f on Aug 19, 2019 20:23:06 GMT
Good questions.....for which I certainly don’t have the answers!
I have read that the ATC system was “invented” around 1905, with The Great Bear being built in 1908. It probably took several years to perfect and approve the widespread fitting of ATC, so presumably the photo is a very early one.
ATC continued in use until the 1970’s, by which time the BR AWS system was universally being fitted to all main line locos, units etc.
Cheers Don
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baldric
E-xcellent poster
Posts: 208
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Post by baldric on Aug 19, 2019 20:36:29 GMT
When was steam heating for carriages introduced to the GWR? For that matter, where is the ATC box, or was this photo too early for that? I think this is to early for widespread use of AWS. The photo shows the pressure regulator (mason's) for the steam heat, just no gauge, hence my confussion.
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don9f
Statesman
Les Warnett 9F, Martin Evans “Jinty”, a part built “Austin 7” and now a part built Springbok B1.
Posts: 960
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Post by don9f on Aug 19, 2019 21:01:40 GMT
Hi, I’m sure you meant to type “ATC” (Automatic Train Control), which the GWR used. The Great Bear had been withdrawn long before “AWS” (Automatic Warning System) became the preferred standard from the 1950’s onwards
Perhaps the steam heat system had a safety valve under the cab somewhere, to alert the crew to over-pressure?
Cheers Don
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baldric
E-xcellent poster
Posts: 208
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Post by baldric on Aug 19, 2019 21:12:17 GMT
Don, Yes I did mean ATC, doh. I would still have expected a gauge as the reducing valve is adjustable, higher pressure for more coaches. Baldric.
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don9f
Statesman
Les Warnett 9F, Martin Evans “Jinty”, a part built “Austin 7” and now a part built Springbok B1.
Posts: 960
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Post by don9f on Aug 19, 2019 21:25:14 GMT
So would I, so that point is intriguing !
I thought maybe the gauge was on the tender....
Don
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Post by simplyloco on Aug 20, 2019 10:07:46 GMT
I received my new micrometer today. A little bulky but soooo nice to handle - the larger sleeve is the ratchet- and accurate too! 20190820_102904 by inkaboat, on Flickr
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Aug 21, 2019 20:28:45 GMT
Haven't done much in the workshop over the past couple of days but have managed to strip down the motor for the Tauco drill. I have removed the 50 year old atrophied spiders plus accumulated dirt, oil etc and put a lick of paint on the casing. I have also cleaned up the working bits and removed the atrocious wiring which I inherited. Clamping bare wires to a painted surface is not going to do much for earthing!
Next is to re-assemble everything and see if it still runs!
Tim
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Post by goldstar31 on Aug 22, 2019 12:40:15 GMT
Well I have to admit being a victim of 'The Dark Side' in that I was conned into making a payment which I believed was for my a Road Fund Licence renewal .
Of course being old( almost 90, profoundly deaf and with macular degeneration some of us are victims of what appear to be genuine matters. Hopefully, my bank will stop the payment and issue me with a new card.
I do hope that other members in the UK will take heed of what is happening again. They had ALL my bank details etc. The only clue on what appeared to be a genuine Government form was that the details showed 'Beta'
My good deed for the day?
Norman
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Post by simplyloco on Aug 22, 2019 13:30:45 GMT
Lurking over a cup of coffee I found this amazing thread specification site. I must admit that I'd never heard of the Hamann Patronen Thread. It is especially odd when the table shows a 1mm dia. thread with a pitch of nearly 4mm! Looks like the first column has been inverted . www.gewinde-normen.de/en/index.html
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Aug 22, 2019 14:41:20 GMT
Norman,
I hope it gets sorted out quickly. It is most distressing when this sort of thing happens.
Tim
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Post by Deleted on Aug 22, 2019 16:19:54 GMT
Today I've been very busy stripping down both the lathe and mill to see what could be done to remove the play on both 'X' and 'Y' axis and when I say play... I mean 'PLAY' First I tackled the lathe, I completely stripped down the top slide and cross slide/saddle removing both lead screws and examining the bearing blocks that they run through. The play on 'Y' was enormous, about 1/4"...I had noticed that the handle seemed to have some play in it so began there. It has a small screw under the bearing block which had become loose, it's very small and easily forgotten about being out of sight. Even after tightening the screw as far as it would go there was still about 1/16th play in the shaft, I resolved this with PTFE washer which took up that all of the shaft float. The other end of the shaft just floats in it's keyway so the only way of stopping this was to take up all slack at the handle end. A Picture to give an idea of what I'm saying.. On cloocking the movement left on the leadscrew itself, I had approx 10 thou, I managed to dial all of this out by tightening up the block which had been cleaned down first, you can see it in the first picture. I now had zero movement which made me much happier. Next was the play on the cross slide which again was both a mixture on shaft play through the handle and leadscrew play through the bearing block although not the thread itself. The handle was tackled the same as the 'Y' axis, the bearing block was a different proposition altogether. The thread itself could be tightened up which removed any play, the issue was that the block has a spigot which is a drift fit into the saddle and this spigot (bronze) had become badly worn. I could have mchined it down a little and opened up the hole in the saddle to fit a sleeve but this would have meant that it wouldn't be a simple fix later when the thread is too worn and the block itself needs replacing. My solution was to drill two mounting holes on the diagonal and drill tap the saddle so that the bearing block could be bolted directly to it as seen here. with everything put back together, I'm happy to say that both axis now have zero play in them, just right for when I make a start on those pesky valve sleeves.. I have also done likewise to the mill removing all play although no mods required for this is it's a much higher quality piece, for instance, the shaft bearings are ball raced and only needing repacking with grease and tightening. The mill is also now fully back together and operational.. Gives me much more confidence for the challenging jobs ahead in the coming weeks... Pete
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,269
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Post by smallbrother on Aug 22, 2019 17:30:55 GMT
Started making a new part to connect the 2 nearside draincocks to the lever mechanism. Always thought they were a bit iffy and on closer examination the original part could not possibly work correctly - the holes in it do not correspond with the levers on the draincocks.
Pete.
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Aug 22, 2019 17:55:16 GMT
Pete,
Good work on the lathe and mill. We forget that these tools need TLC on a regular basis.
Tim
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Aug 22, 2019 17:57:51 GMT
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Post by Rex Hanman on Aug 22, 2019 21:12:34 GMT
Lurking over a cup of coffee I found this amazing thread specification site. I must admit that I'd never heard of the Hamann Patronen Thread. As it is an anagram of my surname I'm rather amazed that I have never heard of either!
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Post by simplyloco on Aug 22, 2019 22:07:48 GMT
Today I've been very busy stripping down both the lathe and mill to see what could be done to remove the play on both 'X' and 'Y' axis and when I say play... I mean 'PLAY' SNIP Pete Isn't retirement and building our man caves all about PLAY? Who wants to stay on the straight and narrow when we can grow old disgracefully? Play away I say! Oops, what have I said? John
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Post by Roger on Aug 23, 2019 7:11:02 GMT
Popped in to see Jon (Nobbysideways) with my dear friend Bill on the way back from the Great Dorset Steam Fair yesterday. Great to finally meet and have a good chat, sorry we couldn't stay longer.
P.S. After last years catastrophic organisaion that created hour long queues for the car park and hour long queues to pay, the great British public appear to have voted with their feet and we cruised through to what looked like about a quarter of the number of visitors last year. If you were thinking of avoiding it this year because of that fiasco, I think you might find it's better than it's been for years. They still only appear to have one entrance and four payment booths though, although there was no queue at any of them. I reckon they nearly killed it last year, let's hope enough people go this year to make it viable. At the moment, it doesn't look promising.
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Aug 23, 2019 8:35:22 GMT
Roger,
That sounds sad. I last went in the 1990's and it was a mission to get into the car park and show then. I used to go down with a caravan arriving a couple of days before the show opened and use the caravan site entrance to the show which was always much quieter. It was a magical experience (if the weather was dry) and I was hoping to get there, possibly next year, but once again with the caravan. In fact trying to get into the Great Dorset Steam Fair in about 1988/9 and queueing for ages was the trigger to buy a touring caravan in the first place. It subsequently meant I was able to go to the rally in Cardiff at the M.E. society where the caravans are parked inside the track - a great time!
Tim
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