Fishter wrote:
I've also got half of the central
(?) bead off, also broken. This allowed me to open the hatch and extract
the two sash weights, both with broken cords. Now just popping out to get
some sash cord and some other bits 'n' pieces.

It may have been mentioned before, but just in case it wasn't, it's
much easier to fix the weights to the cords, pull them up into the
box and then tack the cords to the window frames, than to try and
do this in the opposite order.

Hopefully SWMBO won't mind the mountain of gloss paint chippings all over
the place ;-))

Hopefully, but I wouldn't bet on it.

Nick