Where is my pallet fork?

[markr]

I received this fully wound. Balance would move but seamed to be rubbing on the bottom.  When I loosened the bridge screw the balance started to swing.  I removed the balance the movement unwound and I don't see a pallet fork.  Can any one tell me whats going on? I would also like to know who made it and what the movement is? Thanks.

[HSL]

I think that is an cylinder escapement, it doesn't have any fork....

[watchweasol]

It Is indeed a cylinder movement(no fork) the escape wheel operates directly on the balance staff (cylinder) which has cut outs to arrest the wheel, locking and unlocking basically the same as the fork/pallet.

[watchweasol]

https://gearhead.engineering/the-cylinder-escapement/   this link gives a very good explanation of how the cylinder escapement works.

[markr]

Does the top and bottom stones look ok?  How about the balance staff?  Any one know who made it?

[HSL]

They look fair, who made it one probably can see when you strip it down , a while ago I posted a stripdown of a cylinder movement maby that can help you on the way..

 

[markr]

The balance wheel is sitting too low and rubbing the escapement bridge.  It has to be a worn stone or staff.  My skill level is not there yet.

[StuartBaker104]

The pivots can be moved up and down in the cylinder to adjust end shake and the correct height of the cylinder in relation to the escape wheel.

You may find a makers mark under the dial. If not you may be able to identify from the keyless works and the movement diameter.

The case is a generic silver import carrying the mark for George Stockwell whose sponsors mark appears on many imported silver cases of this era.

[StuartBaker104]

By the way, take great care when removing the hands and dial. That luminous paint will be extremely fragile, but looks great the way it is!

[markr]

On 4/1/2020 at 5:35 PM, StuartBaker104 said:

The pivots can be moved up and down in the cylinder to adjust end shake and the correct height of the cylinder in relation to the escape wheel.

You may find a makers mark under the dial. If not you may be able to identify from the keyless works and the movement diameter.

The case is a generic silver import carrying the mark for George Stockwell whose sponsors mark appears on many imported silver cases of this era.

I take it to do this I have to remove the hair spring first. How are the pivots adjusted?  I have a staking set but I have never used it.

[watchweasol]

Hi the pivots are adjusted using an off set punch, I believe a split stake is used to hold the balance to support the cylinder as the tampons are moved.

[StuartBaker104]

There is a picture here showing how to push a pivot out... special punches are required.

http://timepieceshoppe.com/cylinder-watch-mechanical-restoration/

You would be best advised to remove the hairspring to avoid damage, and don’t push the pivot too far!