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Sandtreppengehäuse

English translation: (sander) U-trap housing

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Sandtreppengehäuse
English translation:(sander) U-trap housing
Entered by: David Williams
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06:26 Jul 11, 2008
German to English translations [PRO]
Tech/Engineering - Transport / Transportation / Shipping / Locomotives
German term or phrase: Sandtreppengehäuse
The Sandtreppe is evidently part of the sand distributor or sandbox (or at least some part of the sanding gear), by the looks of it:

"eine Sandtreppe, also die Entnahmestelle des Sandes aus dem Sanddom." (http://www.swr.de/forum/read.php?5,26390)

"einer am Sandkasten angebrachten Sandtreppe (Abb. 174)" (http://www.zeno.org/Roell-1912/A/Sandstreuvorrichtungen and http://www.zeno.org/Roell-1912/I/Ro080233)

Perhaps siphon-shaped: "eine sogenannte ,,Sandtreppe" in Art eines Siphons angeordnet" (http://www.freepatentsonline.com/EP0816129.html) and possibly even the "Locomotive sanding trap" mentioned in this patent (although I admit, it is a little far-fetched to equate 'trap' and 'Treppe').
David Williams
Germany
Local time: 22:13
(sander) U-trap housing
Explanation:
My choice here; it's effectively the same principle as the U-trap in drains which prevents water flowing away and allowing the foul air to escape, though in this case it is ONLY to prevent sand continuously trickling down the pipes. Hence the idea of a "Treppe", or a step, which the sand has to negotiate, with the help of compressed air or steam, before it is applied to the rails.

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Note added at 1 hr (2008-07-11 08:10:47 GMT)
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I think in a list such as yours I'd add the sander just as I have shown. True, there won't be too many other U-traps on a steam locomotive - or an electric loco for that matter, but even so...

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Note added at 5 hrs (2008-07-11 11:51:05 GMT)
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No; the principle is that steam or compressed air lifts sand over the "Treppe", or step - it's clearly shown in one of your diagrams - which as stated is there to stop the sand trickling away down the pipe continuously. I've no idea what the U-pipe in the condensing gear does; the last of the N2's had disappeared from Kings Cross about six years before I started work there.
Selected response from:

David Moore
Local time: 22:13
Grading comment
Very many thanks indeed. If I could award 10 points, I would!
4 KudoZ points were awarded for this answer

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Summary of answers provided
4(sander) U-trap housingDavid Moore


Discussion entries: 1





  

Answers


58 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
(sander) U-trap housing


Explanation:
My choice here; it's effectively the same principle as the U-trap in drains which prevents water flowing away and allowing the foul air to escape, though in this case it is ONLY to prevent sand continuously trickling down the pipes. Hence the idea of a "Treppe", or a step, which the sand has to negotiate, with the help of compressed air or steam, before it is applied to the rails.

--------------------------------------------------
Note added at 1 hr (2008-07-11 08:10:47 GMT)
--------------------------------------------------

I think in a list such as yours I'd add the sander just as I have shown. True, there won't be too many other U-traps on a steam locomotive - or an electric loco for that matter, but even so...

--------------------------------------------------
Note added at 5 hrs (2008-07-11 11:51:05 GMT)
--------------------------------------------------

No; the principle is that steam or compressed air lifts sand over the "Treppe", or step - it's clearly shown in one of your diagrams - which as stated is there to stop the sand trickling away down the pipe continuously. I've no idea what the U-pipe in the condensing gear does; the last of the N2's had disappeared from Kings Cross about six years before I started work there.

David Moore
Local time: 22:13
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 764
Grading comment
Very many thanks indeed. If I could award 10 points, I would!
Notes to answerer
Asker: Excellent, many thanks. Would it usually be referred to without mentioning sander?

Asker: by the way, it's not the U-bend mentioned here, is it? http://www.lner.info/locos/N/n2.shtml That is apparently part of the condensing gear.


Peer comments on this answer (and responses from the answerer)
neutral  Bernd Runge: isn't the sander the tube which is downstream from the Sandtreppe?
49 mins
  -> Strictly, no, that's the sandpipe (at least, in the UK). The sander is where the work (of getting the sand out of the sandbox and into the pipe) is actually done. No-one would criticise you for using the term colloquially, though - certainly not me!
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