Window operator for casement window

Wow, you weren't kidding. This is truly bizarre. I've never seen anything like this before, and to be honest I'm not even sure how it works. 

I can at least tell you that the gears are stripped out, which explains the issue you're having, but that's about as far as we can go. I'm going to forward this to my senior colleague who has a lot more experience with this kind of window than I do. With any luck, he'll have come across one of these before, but we'll see. I'll get back to you ASAP.

In the meantime, if you can dig up any information on who might have manufactured this window, or even if you can confirm if they were custom made, it would be a huge help. Check the inside of the window frame for a metallic AAMA sticker, too. Seeing that may offer us a clue.

Yeah, I'm with Tom. Your operator is similar to those we carry on our site, but it has an unusual linkage that operates the window. If at all possible, I'd like to see some more photos showing how it attaches to the sash. A few other photos of how it operates in general would also be appreciated, as well as seeing all the relevant working parts. 

Thanks again for waiting. Unfortunately, we haven't been able to find anything that functions similarly to this operator. I'm afraid that we will not be able to offer a replacement for you. Your best bet is trying to track down whoever made this window. I think they may be your only hope. Sorry we can't be of more help!