Yesterday I started to tackle the complete renovation of the last large 2 over 2 sash window
in the house - this one is in the hall (photo right), and there are still two small sashes in the bathroom to be done but they are one over one, so they hardly count. (NB The front door is at right angles to the window, behind the wall to the right.)
Now, the weather this August has not been too good, and this week is no exception. Having identified this as the last two week period this year when the job could be done, I started yesterday but didn't get very far in that weather. In fact it was pretty depressing as, having been pretty successful in removing the old glass on the four similar windows which I have renovated in the last two years, yesterday I broke three panes on only the one sash. Now, since the window is 2 over 2, by definition one sash has only two panes - I broke both those and, in seeing if a spare piece of glass from a previous window would fit, I broke that too! However, today was better. I got both wavy panes out of the top sash unbroken, and also stripped both sashes to bare wood, including getting all the putty out.
The surprise was the discovery that the top sash has never been a moving window. It has no pulleys and weights, nor even an attachment point for any cords.
The mystery is that although it was quite difficult to get the top sash out, this was entirely
due to the fact that it had been generously painted in on several occasions - there was no other visible attachment holding it in place. No screws, no nails, no wedge, nothing. How did they do that?
Left is a picture showing the pulley for the lower sash and an unpainted piece of wood with no hole where it should be for the pulley for the upper sash!
Fortunately, when trying to free the upper sash with a Stanley knife, I was well aware that there might be no cords holding it, so I did the job very carefully. I was most relieved when I had it in my hands complete and undamaged, and even more pleased when I had both panes out safely an hour later.
Edit following completion of the task: Mystery solved! The top sash was originally held up by a pair of very fine nails - basically long panel pins - which were nailed upwards at an angle of 45 degrees at the bottom of each vertical part of the sash frame. These of course were ferrous and so had rusted away a long time ago; it took me a long while before I found the traces of the tiny rusty holes as I knew they had to be there somewhere!
I am very pleased to have had the whole window repainted, reassembled and working on the eighth day of this project; it took about 30 manhours and looks pretty good. I didn't bother to even take any photos of the stages as it was just the same as the earlier ones, apart from the fixed window. Now all I have left are two small one over one sashes which form the bathroom window - that's a project for next year.