Видео

Excelente!

Beautiful model- bravo!! Do you know where I can learn more about AH Benoit?

This escapement looks good but it needs an extra wheel and pinion which no one mentions.

If the watch has Hardy's banking (devised around 1800), there's no problem with a tripping escapement. Many Swiss pivoted detent watches were fitted with this device.

The first watch I serviced was a pocket watch with cylinder escapement.

Beautiful work. Why so long between videos, if I may ask?

Great model. What is the purpose of the ruby laying flat under the pallet? It doesn’t look like it serves a purpose.

It's a coaxial cylinder escapement.

The cam of the cylinder/arbor needs to better allow the escape wheel to slide along its natural path as the tooth is being released, instead of a sudden drop. There's too much shock as it is, given the direct impulse nature of the design.

I believe that the teeth from the lever that's mated with the roller lever (attached to the balance staff) introduce too much friction and shock. Even if each escape wheel provides a low enough direct+direct or direct+indirect impulse delivery, there's still energy lost to friction. And, the balance wheel via the staff will be subject to continuous shock since it's essentially directly connected to the lever. For the point of contact between the roller and lever (top half), a traditional roller and lever may be more efficient. The bottom half works.

It's nice that the spring detent lever isn't hit twice like on some other designs where the spring gets hit with no impulse benefit (i.e. the detent is in the way on the return trip). Is the "mainspring" (in this case, the power via weight/gravity) for the power wrapped around the lever to provide the impulse to the balance wheel like on traditional Swiss lever escapements? Or is it wrapped around the balance wheel staff (in which case, that may be too much torque, while the spring lever is providing the power to only push the bottom lever up)? Given this setup with where the detent is, I'm thinking it's the latter or it wouldn't be any different from a conventional lever escapement, and there would be no need for the detent to be there to provide power as the weight already does that.

The English escapement closely resembles the Graham escapement in pendulum clocks. Is it a coincidence?

This escapement is used also in the opposite way in electro-mechanical watches. The balance wheel is driven by electromagnetic coils and rotates the escapement wheel via two pallet disks.

One impulse per oscillation period? Is there any advantage over a traditional Swiss lever escapement?

I understood the difference between two escapements.

How did you make the balance spring?

Great stuff, very clear.

Hello, would you share your drawings? I'd like to make it too

Hmmm... this escapement probably needs a purpose built balance spring.

Best demonstration video of this i have seen

Hi ! Love your work so much ! I'd like to reproduce your model, would it be possible to get the plans and dimensions you've used ?

all your videos are really amazing. I can see a lot work gone into making these mechanisms actually work and not some simulation. might I ask what books are you referring to be able to draw them at all?

Thank you for sharing the video. I've been seeking the video that shows me the moving of the detent escapement.

I Could Watch That All Day....

et

Why is There One Palette Jewel not touching anything?? the longer one

I've watched it many many times now and still don't get why the fork has a middle tine, which seems redundant with the upper tine, at 1:24 that middle tine and the grey escapement tooth are labeled "indirect impulse", which is confusing because isn't it the balance wheel that needs the impulse not the fork, then later at 1:54 the upper tine and the orange escapement tooth are labeled "direct impulse" and the balance wheel gets its needed impulse. for this to make any sense for me the things that need to be explained are why are the "direct impulse" and the two "locking repos" actions less friction here than in traditional escapement, and why the second escapement, wheel which seems to only power the fork not the balance wheel, finally a note to the builder, the acorn nuts on the rim of the balance wheel are very distracting and obscuring, we can see the wheel's rotation just fine from the wheel's spokes and from the hairspring.

Magnifique : encore un échappement que l’on peut qualifier par les termes « impulsion par déplacement de la position d’équilibre », inventé par un anglais Gowland, il n’est jamais parvenu à s’imposer, il n’en demeure pas moins fort ingénieux et encore félicitations à son constructeur…expliquer le fonctionnement serait intéressant… merci

These videos are fantastic. I am reading The Practical Watch Escapement, and your videos bring the illustrations to life. I would love to see videos about how you fabricate and assemble these models. Thank you for publishing your work!

what's the advantage of adding the pirouette device?

seems similar to grand seiko hi beat escapement

Amazing!, you should also make the rack lever escapement

Bravo une fois de plus pour ce tourbillon extraordinaire. Encore une innovation ! On est loin de tout avoir inventé en horlogerie et vos réalisations en sont la preuve.

ah! great!! U can hear the sound of the escapement!! congrats!!

Gorgeous work as always, your videos are amazing! I have been watching this in slow motion and going frame by frame for a while now, and I still don't fully understand what the red piece in the upper left is doing. It looks like some sort of spring detent, but I can't figure out what it's contributing to the movement's function.

Simply beautiful!

I always enjoy your videos. What size is the escapement wheel?

Your videos are amazing! I have just discovered your channel. I find it in trying to know what kind of escapement is on three very old English pocket watches of mine. It looks like a Robin escapement. Was it common on English pocket watches in the XIXth century? Thank you very much!

I've never seen escapement like this. Very interesting. Shows me that I got a long waay to learn new things. This is amazing. Thank you.

Variation of the waterpearl

That's an interesting escapement, so there's no impulse on the balance but just the tension from the spring that gives it more twist ?

Is it possible to buy any of your models?

Magnifique

Superbe mais on ne voit pas le déclenchement malgré le ralenti, c'est dommage pour les amateurs

Magnifique, je confirme sans surprise, néanmoins je reste un peu sur ma faim : j'adore généralement toutes les vidéos de pendules, mais ici malgré sa perfection on ne voit "pas bien" le fonctionnement même au ralenti : je suppose que l'ajout d'un dessin "animé", avec quelques commentaires, serait la perfection pour l'humble bricolo que je suis... Merci de toute façon !

Has a double pivoted-detent constant-force escapement ever been made before? Or is this a new design of your making? I can't seem to find any past references on them online. Also: thank you for providing videos of all these great models. When reading about them in books it can be hard to truly understand some escapement types, but combining books + your videos makes them understandable

Really like your escapement vids....I study them rigorously. I greatly appreciate your willingness to answer viewers questions. I am certain that many folks are informed by those answers....not just the questioner. Again, many thanks.

Is this based on James Ferguson Cole's rotary detent?

EXCELLENT. This is the best example of showing how the coaxial escapement works. I never fully understood how the impulse was transmitted to the balance until now. The 'centre jewel' of the pallet fork (probably not the correct term) gets the kick from the smaller of the two escape wheels sharing the same axle. Question now is - why does anyone make an escapement any other way now? Why does the traditional lever escapement even exist any more?