"SASH CONTROLS" Crank Replacement

Question

House built in 1970.  Original small window cranks open/closed.  It will not close completely due to stripped gear (see photos).  Need to replace the arm with the gears/teeth on one end.  The other arm says "SASH CONTROLS INC.  DET. 14, MICH.  PAT NO. 3,085,299" (See photo).  Do you have a replacement arm (with gears/teeth)?  Thanks.

Tom · Accepted Answer

I have seen that patent number only once before, and it was for a very, very old style operator that isn't made anymore. I don't know it for a fact since we have such limited information, but based on its design and age then I think it's safe to say that it's obsolete.

The only products we sell that might work are our 39-020 and 39-021, along with a new 39-520 track, but this is an educated guess. I am personally not optimistic but some of my colleagues think it can be adapted, as long as you're handy. You may want to contact a local professional to do the job for you just in case.