Johnson Grounds fusee movement disassembly

[szbalogh]

Most of you in England are maybe familiar with this movement but for me it is the first one with a fusee so i am so excited of this new gem

 

[szbalogh]

Fusee chain and the initially clear washing liquid after ultrasonic cleaning.

 

[frenchie]

Looking forward to the rest!!!

[Tmuir]

So am I!

[dadistic]

I've never even seen a fusee movement in person, so this is all very interesting to me.

Thanks!

[oldhippy]

Do you intend to repair the chain or try for a replacement. Repairing the chain is not an easy task, if your not careful you will do more damage then you already have. You might need to take the fusse apart to check the teeth on the ratchet, also you will be able to grease the ratchet. 

[szbalogh]

22 minutes ago, oldhippy said:

Do you intend to repair the chain or try for a replacement. Repairing the chain is not an easy task, if your not careful you will do more damage then you already have. You might need to take the fusse apart to check the teeth on the ratchet, also you will be able to grease the ratchet. 

Repair for sure  Already collected the tools and materials.

Just wanted to ask if the ratchet/fusee cone should be disassembled. As i remember it is also secured together with a pin. 

[oldhippy]

Your right it is secured by a pin. I would take it apart. Going back to the chain be careful when removing the old rivet that you don't split the chain or bend it. 

[szbalogh]

Started shaping the hook:

[vinn3]

great project !  vinn

[szbalogh]

Please look at this picture! Browsing around the net i have noticed that there is a click wheel missing, but the click is present (green circle).

But maybe is there an other click in this movement? Please look at the part in the red circle, which engaging that steel gear mounted in the fusee cone (red arrow). Is this normal? Or what is behind this?

 

[oldhippy]

My sight isn't very good these days. The part in the red circle looks like its for the maintaining power, when its between the plates it rests on the fusee wheel.  Here's a picture of what the ratchet wheel looks like. If you could get a closer photo I might be able to see better and help more.

 

[szbalogh]

5 hours ago, oldhippy said:

My sight isn't very good these days. The part in the red circle looks like its for the maintaining power, when its between the plates it rests on the fusee wheel.  Here's a picture of what the ratchet wheel looks like. If you could get a closer photo I might be able to see better and help more.

Yes, this is the type of ratchet gear i am missing. So both are needed for proper working?

[oldhippy]

You only need the ratchet wheel or as you call it ratchet gear.

[vinn3]

is that chain anything like the one in a barometer ?

[szbalogh]

9 hours ago, oldhippy said:

You only need the ratchet wheel or as you call it ratchet gear.

Thank YOu

6 hours ago, vinn3 said:

is that chain anything like the one in a barometer ?

Wow, i didnt know there is a chain in a barometer.

[oldhippy]

What if it is?

[vinn3]

it looks like a barometer WITH CHAIN

[oldhippy]

18 minutes ago, vinn3 said:

it looks like a barometer WITH CHAIN

What does?

[vinn3]

i guess you have lost track of the chain subject.

[oldhippy]

I know full well that a chain in a barometer won't be any good in a Pocket watch fusee movement.