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une tuyauterie de départ vers la lance.
choc vasoplégique
Mar 13, 2018 10:23
6 yrs ago
1 viewer *
French term

fretter les dentures

French to English Tech/Engineering Mechanics / Mech Engineering
Mechanics patent.

The invention essentially consists of a sort of assembly jig enabling two parts to be brought together and secured. The gears have specifically herringbone teeth.

"Pour ce qui est de l'assemblage de la couronne avant et de la couronne arrière de façon à former la couronne, un centrage fretté est effectué dont le résultat est visible à la figure 1B"

"Y sont visibles la couronne avant et la couronne arrière comportant des dents, l'ensemble étant fretté"

"et de les avancer axialement l'une par rapport à l'autre afin de les engager dans les satellites, de les fretter et de les orienter angulairement l'une par rapport à l'autre jusqu'au contact final entre les dents"

"Il faut s'assurer, qu'une fois qu'on arrive au quasi contact entre les dentures des couronnes avant et arrière, les trous des vis tombent les uns en face des autres, et notamment ceux permettant l'orientation. ... En effet, sur les 360° des couronnes avant et arrière, une seule position est possible permettant de fretter les dentures."

Une fois la broche d'orientation insérée entre les trous d'orientation des couronnes avant et arrière, l'opérateur n'a plus qu'à faire tourner selon la flèche F3 la couronne avant, ou selon la flèche F4 la couronne arrière de façon à fretter les dentures les unes par rapport aux autres et engager la couronne ainsi formée avec les satellites tel que représenté à la figure 10B.

Tony M, Chris Collister ...? Are you out there?
Proposed translations (English)
3 align the teeth
4 Fret the dentures

Discussion

Terry Richards Mar 14, 2018:
Not meshed As I see it, the two gears are side-by-side rather than meshed. If you take two identical gears cut this way /, turn one round and join them together you get /\ which is the herring-bone pattern.
B D Finch Mar 14, 2018:
Shrinking? Might "fretter" as "shrinking" be about reducing the gap between the two rings so that the teeth are aligned and almost meshed prior to them actually meshing? In which case, perhaps add "approach" to Terry's "align the teeth", i.e. "align and approach the teeth"?
chris collister Mar 13, 2018:
Another meaning that might fit the context (though it's not a meaning I'm aware of) is of "dithering", "finessing" etc. i.e. of fiddling with something until it all drops into place or suddenly fits. This could well be true of gearwheels where there is only a small mechanical window of opportunity and where the chances of getting it right first time are slim.
Mpoma (asker) Mar 13, 2018:
If it's not clear to you... ... then I don't feel so ashamed at my puzzlement. Yes, I'm aware of "shrink on"... but there is no heating-cooling of any parts going on here... other candidates might be "to hoop" or "to fit" even... the context and diagrams don't provide any enlightenment really... From the context "mesh" might work quite well. And these are herringbone teeth, which presumably mesh only in a particular way... but then again it also talks (last extract) about "engager la couronne"... hmmm
chris collister Mar 13, 2018:
The usual meaning of "fretter" is that of shrinking an outer diameter onto an inner diameter, usually by heating the outer and/or cooling the inner to achieve a high-friction fit. How this quite fits with the "dentures" I'm not sure, unless they are referring to the entire gear-wheel. The diagrams may shed some light...

Proposed translations

3 hrs
Selected

align the teeth

I'm mainly doing this from context but fretter can mean to fit and this is fitting so that the teeth are aligned. The herringbone gear appears to be made from two identical halves with radial teeth and the two sets of teeth have to meet in the middle to form the herring-bone.
Note from asker:
Thanks... convincing.
Something went wrong...
3 KudoZ points awarded for this answer. Comment: "I put "fit the teeth" in the end. Thanks"
2 hrs

Fret the dentures

fretting is shortening gums.
Peer comment(s):
neutral chris collister : Interesting... But how would this apply to steel gears?
43 mins
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