Screen frame says Patent Pend Ry Lock

Thanks for posting. This operator is very similar to our 39-044 and 39-045, though the bearing at the end of your arm is different. Look these two products over and see if you could still get them to work. They are designed to be used with a 39-504 track, so if worse comes to worst then you could use this on your sash to make our parts operable.