What is Bourrelet?

[Offluzz]

Hi, I'm new here and in the world of trains, could someone help me with a question I'm having?
What is a Bourrelet and what is it used for?

 

[hexagon789]

Not aware of the term in a railway sense, Google says it's French for "bead" and Wikipedia suggests it's part of a firearm or projectile missile!

I see you are from Portugal, is "bourrelet" a Portuguese term, Google doesn't seem to think so.

Perhaps you could post the Portuguese term for what you're looking for and a translation from Google and we might have a better idea as I honestly can't think what a "bead" would be in a railway sense.

 

[Offluzz]

I was doing a study on the parts of the trains and I came across this term, and I ended up having doubts. I'm putting it where I found the term and a drawing of it, maybe I can help you understand.

 

[JB_B]

I've no idea but reverso gives a couple of similar-ish examples translated as "pads" - maybe in those contexts thermal insulation or antivibration?

bourrelets - Translation into English - examples Portuguese | Reverso Context

Translations in context of "bourrelets" in Portuguese-English from Reverso Context: Produtos de fibras de vidro, para isolamento térmico de tubagens e semelhantes (bourrelets e coquilles)

context.reverso.net

 

[etr221]

Nor is it a term/word I recognise. I was about to ask where you came across it, but you have now done so... Is it a word in Portuguese that has a (non-railway technical) meaning that might have been soemehow been borrowed?

I'm not much wiser, but I think it is part of a (Flexicoil?) suspension... possibly a metalised rubber ring or disk of some sort... but you really need an expert in such things. And it may be specific to that particular type/brand.

I think the UIC publish(ed) a multilingual dictionary of railway terms, don't where you might find a copy, or whether Bourrelet would be in it.

 

[Offluzz]

Thank you very much everyone , i will try to go after a company that manufactures the piece to tell me about it.

 

[eastwestdivide]

As it looks like a French word, I looked it up in my big French dictionary, where it can be a "weather strip".
Looking up on the internet, in conjunction with UIC, I got this page describing UIC coaches

Voiture UIC-Y — Wikipédia

fr.wikipedia.org

Une des innovations confortées par ces standards a été l'utilisation de bourrelets en caoutchouc à la place des soufflets d'intercirculation

rough translation "one of the innovations was the use of rubber bourrelets in place of the inter-coach bellows",

and this page, also in French, describes the development of inter-coach gangways

soufflets et bourrelets

showing pictures of the the rubber seals which replaced the flexible "bellows" arrangements on older coaches

So, potentially it means the big rubber bits visible on the end of this coach arround the connecting door:

Voiture UIC-Y — Wikipédia

fr.wikipedia.org

But depending on context, it could be another sort of rubber sealing strip.

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Adding to the above, comparing the French and English pages here

Classification UIC des voitures de chemin de fer — Wikipédia

fr.wikipedia.org

UIC classification of railway coaches - Wikipedia

en.wikipedia.org

then looking under DB and 'm'... bourrelet is translated as "rubber gangway connector"

 

[Offluzz]

Thank you very much, you helped me a lot

 

[Gag Halfrunt]

then looking under DB and 'm'... bourrelet is translated as "rubber gangway connector"

That is what it means in Portuguese railway terminology.

It's the French name we've adopted for the UIC-561 rubber tube gangways...

 

[Giugiaro]

These are the UIC-561 rubber gangways that we refer to as Bourrelets.

 

[MarcVD]

Bourrelet is also the french word for the flange in the wheel profile.

 

[eastwestdivide]

Bourrelet is also the french word for the flange in the wheel profile.

Isn't (wheel) flange = "boudin (de roue)" ?

Slightly confusingly, it appears that the "bead" on a rubber tyre (the bit that sits on the wheel) is a "bourrelet de pneu"

 

[Peter Kelford]

@Offluzz The word bourrelet can have lots of meanings.

Judging by the drawing the one you're talking about is part of a piece of rail.The 'bourrlet' in this context refers to a piece of metal soldered onto the rail. Hopefully thisphoto helps a bit.

The word bourrelet comes from 'bourre'. This word means 'stuffing' so in short a bourrelet is 'a cushion filled with cushioning'. The practical implication of this is essentially draght excluders, weather strips and more generally fillers like this seems to be the case.



== Doublepost prevention - post automatically merged: 9 Oct 2020 ==

EP2008904A1 - Bourrelet pour une intercirculation de véhicule ferroviaire et procédé de fabrication correspondant - Google Patents

Here is a patent for a carriage gangway bourrelet.

A photo of a bourrelet just after being made:

https://www.vossloh.com/01_product_finder/VRS/Schweissen/VOS_SCHW_FR.pdf

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https://www.tsb.gc.ca/fra/rapports-reports/rail/1999/r99h0010/R99H0010.pdf

Railway Investigation Report R99H0010 - Transportation Safety Board of Canada

www.tsb.gc.ca

Bourrelet is cited by Canadian investigators in this document.

The translation according to them is therefore 'mould seam'.

== Doublepost prevention - post automatically merged: 9 Oct 2020 ==

EMEF is a rolling stock maintenance organisation so probably gangway bourrelets and not P-way bourrelets apply in the context.

 

[30907]

Fascinating - especially as I asked the same question (of Guigaro I think) in a totally different thread a year ago.

The drawing in the original post is labelled SOREFAME which IMO confirms that it's rolling stock not P-way, but it doesn't look quite like a UIC rubber gangway connection either!

 

[Giugiaro]

The drawing in the original post is labelled SOREFAME which IMO confirms that it's rolling stock not P-way, but it doesn't look quite like a UIC rubber gangway connection either!

Because they are manufactured flat, then rolled in assembly.

The supplier, FLEXOCOL - Fábrica de Artefactos de Borracha, Lda., would have its name translated to FLEXOCOL - Rubber Parts Factory, Ltd.

 

[30907]

Because they are manufactured flat, then rolled in assembly.

The supplier, FLEXOCOL - Fábrica de Artefactos de Borracha, Lda., would have its name translated to FLEXOCOL - Rubber Parts Factory, Ltd.

Thanks - hadn't thought of that