roof boss

French translation: bossage de voûte

06:58 May 8, 2013
English to French translations [PRO]
Architecture / Churches
English term or phrase: roof boss
Part of a commentary for an historical tour of a church. What is the French for "roof boss" (protrusion of stone, particularly at the intersection of a vault, usually decorative) , please? I need to describe it to the visitors and cannot find the word or phrase! Thanks in advance. Answers in English or French are fine.
Nicky Over
United Kingdom
Local time: 13:51
French translation:bossage de voûte
Explanation:
I don't know if this is quite right, but I found a few refs. that seem to suggest the term 'bossage' is at least used; you might find this little glossary useful:

http://medieval.lacorreze.com/glossaire1_architecture_mediev...

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Note added at 16 mins (2013-05-08 07:14:48 GMT)
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This site illustrates them but calls them 'clé de voûte':

http://lalumierededieu.eklablog.com/saint-maximin-la-sainte-...


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Note added at 18 mins (2013-05-08 07:16:21 GMT)
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This page (scroll right down) calls the specific type illustrated a 'clé pendante de voûte':

https://patrimages.regionpaca.fr/resultat.php?DOM=DOM&DPT=&M...

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Note added at 42 mins (2013-05-08 07:40:41 GMT)
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This useful glossary could be a good resource, though sadly doesn't include your term!

http://architecture.relig.free.fr/glossaire.htm

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Note added at 6 hrs (2013-05-08 13:00:57 GMT)
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Thanks to the 'agreers' below, but the more research comes to light, the more I am convinced that 'clé de voûte' (as I suggested quite early on in my added note) is the commoner term used here.

I find it surprising that there wouldn't be a more specific term in FR as in EN, so I think it would be as well to keep looking... and where is Chris Crockett when we need him?

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Note added at 1 day8 hrs (2013-05-09 15:41:49 GMT) Post-grading
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Interestingly, this exact term has been discussed previously some years back on Wordref.:

http://forum.wordreference.com/showthread.php?t=795798

The same conclusion seems to have been reached then...
Selected response from:

Tony M
France
Local time: 14:51
Grading comment
Great, Tony - thanks very much for all your references. Very helpful!
4 KudoZ points were awarded for this answer



Summary of answers provided
5 +2clé de voûte
Tabula_Trad. (X)
4rosace
kashew
1 +2bossage de voûte
Tony M
Summary of reference entries provided
Clé de voûte = Keystone
FX Fraipont (X)

Discussion entries: 9





  

Answers


6 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
rosace


Explanation:
*

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Note added at 6 heures (2013-05-08 13:15:25 GMT)
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ornament or decoration rather than the structural clé/clef.

kashew
France
Local time: 14:51
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 26

Peer comments on this answer (and responses from the answerer)
neutral  Tony M: That's all very well for one type, but as noted in several documetns, they can take all sorts of forms.
18 mins
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5 hrs   confidence: Answerer confidence 5/5 peer agreement (net): +2
clé de voûte


Explanation:
Clé de voûte se dit keystone mais aussi boss (roof boss).

"In Gothic architecture, an ornemental knob or projection at the intersection of ribs in a vault. Bosses were often elaborately decorated with carving (figurative, foliate, or heraldic)…" (The Oxford Dictionary of Art)

http://books.google.fr/books?id=WYaRX58a0_IC&pg=PA92&lpg=PA9...

"Clef : claveau formant le milieu d'une plate-bande, le faîte d'un arc ou d'une voûte, la tête d'une nervure" (J.-M. Pérouse de Montclos, Architecture. Description et vocabulaire méthodiques, 2011, p. 322).

La clé de voûte peut être pendante, historiée, etc.

Voir les exemples bilingues ci-dessous (premier document, bas de la page 15).

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Note added at 1 jour2 heures (2013-05-09 09:44:48 GMT)
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Une dernière précision :

Dans ce contexte ("tour of a church", "protrusion of stone, particularly at the intersection of a vault, usually decorative"), le terme "clé de voûte" est à mon avis le plus approprié. Il correspond au sens suivant :

"Bosses are primarily keystones, but they also serve to obviate the unsightly conjunction of ribs—sometimes as many as eight. They replace what would be a mass of masonry joints with a lively play of curving forms cleverly contained by the essential circularity of the outline, yet running up into the “depth” of the boss where it meets the vault between the ribs."

http://hds.essex.ac.uk/exetercath/docs/introduction.htm

Cela n'empêche pas de rencontrer des exemples de "boss" ayant une fonction purement décorative : http://www.crsbi.ac.uk/resources/glossaryImagePopup/boss_250...

Example sentence(s):
  • The absense of a projecting boss [clé de voute saillante] has a visual consequence of some importance…

    Reference: http://www.academia.edu/1698848/The_Design_of_Space_in_Gothi...
    Reference: http://www.bayeux-intercom.fr/fileadmin/documents/global/pdf...
Tabula_Trad. (X)
France
Local time: 14:51
Specializes in field
Native speaker of: French

Peer comments on this answer (and responses from the answerer)
agree  kashew: But surely, it's the decorative rosace that is interesting in this case?
56 mins
  -> Merci. La rosace est un type d'ornement de la clef de voûte (il y en a d'autres). Le terme "(roof) boss" désigne la clef de voûte et non son ornement.

agree  GILLES MEUNIER
1 hr
  -> Merci Gilou.

agree  Daryo
3 hrs
  -> Merci Daryo.

disagree  FX Fraipont (X): absolutely not - The boss is the decoration on top of the keystone - it has no function whatsoever beside decoration
4 hrs
  -> "Bosses were often elaborately decorated with carving…" (ci-dessus), de même que dans l'article Wikipédia que vous mentionnez. La pièce (boss) a une fonction architecturale et est par ailleurs sculptée de motifs variés.
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13 mins   confidence: Answerer confidence 1/5Answerer confidence 1/5 peer agreement (net): +2
bossage de voûte


Explanation:
I don't know if this is quite right, but I found a few refs. that seem to suggest the term 'bossage' is at least used; you might find this little glossary useful:

http://medieval.lacorreze.com/glossaire1_architecture_mediev...

--------------------------------------------------
Note added at 16 mins (2013-05-08 07:14:48 GMT)
--------------------------------------------------

This site illustrates them but calls them 'clé de voûte':

http://lalumierededieu.eklablog.com/saint-maximin-la-sainte-...


--------------------------------------------------
Note added at 18 mins (2013-05-08 07:16:21 GMT)
--------------------------------------------------

This page (scroll right down) calls the specific type illustrated a 'clé pendante de voûte':

https://patrimages.regionpaca.fr/resultat.php?DOM=DOM&DPT=&M...

--------------------------------------------------
Note added at 42 mins (2013-05-08 07:40:41 GMT)
--------------------------------------------------

This useful glossary could be a good resource, though sadly doesn't include your term!

http://architecture.relig.free.fr/glossaire.htm

--------------------------------------------------
Note added at 6 hrs (2013-05-08 13:00:57 GMT)
--------------------------------------------------

Thanks to the 'agreers' below, but the more research comes to light, the more I am convinced that 'clé de voûte' (as I suggested quite early on in my added note) is the commoner term used here.

I find it surprising that there wouldn't be a more specific term in FR as in EN, so I think it would be as well to keep looking... and where is Chris Crockett when we need him?

--------------------------------------------------
Note added at 1 day8 hrs (2013-05-09 15:41:49 GMT) Post-grading
--------------------------------------------------

Interestingly, this exact term has been discussed previously some years back on Wordref.:

http://forum.wordreference.com/showthread.php?t=795798

The same conclusion seems to have been reached then...

Tony M
France
Local time: 14:51
Native speaker of: Native in EnglishEnglish
PRO pts in category: 34
Grading comment
Great, Tony - thanks very much for all your references. Very helpful!

Peer comments on this answer (and responses from the answerer)
agree  FX Fraipont (X): http://en.wikipedia.org/wiki/Boss_(architecture)
18 mins
  -> Merci, F-X ! :-)

neutral  kashew: If it is simple stone "diamonding" I agree.
1 hr
  -> Thanks, J!

agree  Cyril B.
2 hrs
  -> Merci, Cyril !
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Reference comments


1 hr peer agreement (net): +1
Reference: Clé de voûte = Keystone

Reference information:
"A keystone is the wedge-shaped stone piece at the apex of a masonry vault or arch, which is the final piece placed during construction and locks all the stones into position, allowing the arch to bear weight.[1][2][3] Although a masonry arch or vault cannot be self-supporting until the keystone is placed, the keystone experiences the least stress of any of the voussoirs, due to its position at the apex.[4] Old keystones can decay due to vibration, a condition known as bald arch."
http://en.wikipedia.org/wiki/Keystone_(architecture)

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Note added at 13 hrs (2013-05-08 20:31:22 GMT)
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"Roof bosses

High overhead, the Cathedral boasts over a thousand carvings in wood or stone that cover the joins between the stone ribs of its vaulted ceilings. These roof bosses range from simple 13th-century leaf designs, to elaborate Renaissance images of angels, animals and beasts, heraldic badges and emblems of Christ’s Passion."
http://winchester-cathedral.org.uk/history-treasures/art-arc...

"A boss is a protrusion in stone or wood, usually to be found in the ceilings of buildings, especially at the intersection of the ribs of a vault, and often intricately carved with decorative devices. Eight ribs are shown in this photograph, forming an intersecting cross and saltire.
According to its website, Norwich Cathedral has more bosses than any other cathedral worldwide: 1000 of them. Two-hundred-and-fifty-two are to be found in the nave. Its rib vault was built by Bishop Walter Lyhart after the fire of 1463, which destroyed the earlier wooden roof. They illustrate many subjects, from Creation at the east end to Doomsday at the west. The seven eastern bays cover events in the Old Testament and the seven western bays those in the New Testament."
https://www.norwich.anglican.org/file/414/351/

"What is a Boss?

Roof bosses are decorative architectural features found on the ceilings of buildings, frequently to cover the intersection of vaulting. They became widespread with the advent of Gothic architecture and are often intricately carved with foliage, heraldic devices or other decoration.


The bosses in St George’s Chapel feature colourful heraldic arms and badges, angels, initials, dragons, animals, floral and religious symbols. Amongst them are pendant bosses, apparently suspended in space, developed in France and rarely found in England. You can see them in the Quire of St George’s Chapel. "
http://www.stgeorges-windsor.org/supporting-st-georges/adopt...



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Note added at 13 hrs (2013-05-08 20:36:33 GMT)
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"Roof bosses in parish churches have, then, by virtue of their material, their lack
of structural function, and a perceived lack of iconographical sophistication,
been excluded from serious study
. It is interesting to recall that C.J.P. Cave‟s
initial involvement with roof bosses was prompted not by intellectual curiosity
but by his interest in photography, and that his focus throughout was primarily
on the great churches."
http://pearl.plymouth.ac.uk/pearl.../bitstream/.../Sue Andre...

FX Fraipont (X)
Belgium
Native speaker of: Native in FrenchFrench
PRO pts in category: 172

Peer comments on this reference comment (and responses from the reference poster)
agree  Tony M: Yes, but the trouble is, these 'bosses' are no more nor less than the decorative underside of the 'clé de voûte'; oddly, FR texts I've found don't seem often to distinguish between them.
18 mins
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