Well, I don't like clocks and this isn't a clock crowd but......
I just got this JLC Atmos handed to me and after a little research, I am kind of interested in the science. Pretty good stab at perpetual motion.

JLC still sells these but I can't find out much about them except the factory spiel.
Anyone have one or know of any followers of these brass beasts?

This one needs a service I'm sure, has a loose bellows screw and had a plaque glued to the base, but it looks pretty nice otherwise.

 

That is a fairly substantial-looking clock. At least they glued the plate rather than attaching it with screws.

Would be nice to see it in operation.

Now I'm going out to mow while "pondering perpetual motion."

 

No winding, no batteries, no weights, no pendulum.
Uses a gas filled bellows that reacts to changes in "Atmos"pheric conditions to tug on a chain of sorts to wind a mainspring that rotates the balance. Kind of a combination barometer/clock.
It's unusual to watch and has some strange looking parts.

 

What luck. I've always wanted one of these.
Make mine with the moon

 

I believe @gatorcpa knows plenty about these.

 

What luck, I've never wanted one!
Why couldn't it have been a nice JLC wristwatch, say a tdmp?

You're absolutely right! This is the base model, I believe.

That is great news, he has always helped my sorry ass (arse), no matter how busy.

 

I was also tempted by exactly the same model two months ago and nearly bought it. Congratulations, it is very interesting piece of horology.
Take care,
Yann

 

Here might be a place to start, I didn't do a thorough search but WTH it's worth a quick look.
http://mb.nawcc.org/forumdisplay.php?15-400-Day-Atmos-and-other-Torsion-Clocks

 

+1, also @Mick Tock and @Deafboy were quite helpful in a thread I started about Atmos' https://omegaforums.net/threads/vintage-jlc-atmos-clocks-what-to-look-for.36846/

I'm finally moving this weekend so I can begin my hunt for an Atmos in earnest.

 

Read a few posts, Thank You very much!

 

Atmos is a signature JLC contribution to horological history. Very nice. If somebody handed it to you....well worth servicing ... Doubt that service will be inexpensive. I'd like to own one but it would certainly induce a stern lecture from the missus.

 

Yes pendulum

 

I don't call it a pendulum, I call it a balance.
Doesn't look like this at all!

 

It's a torsion pendulum/balance. JLC calls it the balance wheel...

 

So you are saying I'm right?

I'm not going to rush anything, but I can see trading this for "One Million Dollars" !!
assuming that I don't fall in love with it!

 

Bryan, maybe we have a GTG midway somewhere, perhaps the Cattleman's Club in OKC?

 

I was recently handed the bellows from one of those. It was a replacement for one that was on the bench in a friend's shop. It was a strangely fragile thing, a large metal corrugated drum, but very light. it changed thickness in response to every change in pressure and created the movement to power the whole thing.That large heavy pendulum hangs from a very fine wire. All very strange.

I've toyed with the idea of buying one more than once, but they're so weird!

don't move it without locking the pendulum..... that much I know.

 

Very nice Jim, that's an intriguing clock. One is on my wish list when the lottery man calls.

 

This being handed to me was my lottery ticket winner, my friend!

You and Yann have automatic first dibs if you choose, but I understand that these don't fly very well?

 

where the gas escape valve? different indeed, but a nice looking clock you got there!