grue à deux becs

14:18 Dec 4, 2018 

for this assumption.

13:09 Dec 4, 2018 

Looks like she chose Trevino's term.

08:43 Dec 4, 2018 

As the question was closed based on peer agreements rather than your selection, I would like to ask for your preference. Can you please indicate, the term used?

12:51 Nov 21, 2018 

Your guess is as good as mine, since it's an artists' rendering of different symbols of commerce. Given that there are a number of other references to balances/scales, measuring tools, etc., it must have been used in the trade of goods in one way or another. It's literally just one image among many on this panel, so I just have to figure out what to call it!

12:20 Nov 21, 2018 

In the photo of Laval's grue, the 'balance romaine' is the central bar across the middle with the sliding weight. It looks a bit like it was sort of "grafted on" as an afterthought.
I'm wondering if this is in essence something intended for balancing (comparing?) unequal loads that need to be suspended

11:09 Nov 21, 2018 

As I've said the mechanics are over my head, all I've got is an artistic rendering of this 'grue' that looks a bit like the Laval's grue in the pictures Johannes I shared. The most salient features of the artwork are two 'arms' that point upward, like in the photos, though they are of uneven length and both appear to have weights hanging from them. there is also horizontal beam (or two?) cutting through them - it's a super fuzzy image, but Laval's grue seems to resemble it pretty closely. Laval's grue seems fairly small, so probably wouldn't have handled very big loads or brought them very high (unless its a replica of something bigger of course).

Not sure where the balance à la romaine fits into this, but I assume it's part of this instrument somewhere, I just don't understand enough about mechanics to place it. But since this item is part of an entire panel devoted to symbols of commerce, I suspects its weighing function is what's most important here.

10:30 Nov 21, 2018 

If you look at the illustration of a similar article Asker has posted, that's not really what it looks like at all.

10:08 Nov 21, 2018 

That's what I also concluded after studying the mechanics. I treated "Grue à deux becs avec balance à la romaine" as one only term, consequently.

09:56 Nov 21, 2018 

I was thinking that two jibs might actually be a single beam extending either side of the point of balance with a moveable counterweight on one of them so that they could be kept balanced when differentially loaded. In that case, "Grue à deux becs avec balance à la romaine" should really be treated as a single term.

08:47 Nov 21, 2018 

No need for a question on the balance, as that one was easy enough to find (as noted in my question). It's the crane bit that was giving me trouble.

08:46 Nov 21, 2018 

I have no idea, it's one mechanical bit in a document on the arts, so I'm lost here!

17:25 Nov 20, 2018 

Dear Dianajoy - wouldn't it be best to post a second question for balance à la romaine?

15:45 Nov 20, 2018 

Couldn't that mean that the jibs are cantilevered with the cantilever weight being shifted along the non-lifting jib to counterbalance the weight on the opposite (lifting) jib?
https://fr.wikipedia.org/wiki/Balance_romaine