Pretty sure I'm not in the right forum! However, this is my favorite forum site, and it doesn't seem to have a perfect fit.
I'm trying to repair an Elgin 8 day aircraft clock from ww 2.
However, the disassembly is proving a little tricky (for a newbe, anyway).
Attached is a photo of a nut with a slot in it. When I unscrew the nut, it doesn't come off, just keeps unscrewing. How do I get this off?