Dave Sr. from SWISCO responded:
January 6, 2016
It sounds like you're missing the mortise lock. When you flip the thumb lever on the inside handle, that hook activates the mortise lock, which then engages with the keeper you show in your second picture. Is that correct?
We might be able to find something, but I'm not sure exactly what you need. Is there any way I can see a picture of the cutout where the mortise lock once was? Can you also give me your measurements of the cut out? Thanks! |