Elevator Forum

Is it a former shipper rope (pull rope) installation with mechanical valves, later converted to constant-pressure with electric valves? (Shipper rope ...

I don't seem to be able to see the images for some reason.

Originally Posted by Johnny Otis used rectifer tubes on its touch buttons. They used tubes in other controllers, but there were no vacuum tube control...

Very unusual elevator. Does the screw go into a hole in the ground (like a hydraulic elevator)? Is this a residential or commercial elevator?

Which one of my multiple assumptions is correct?I also have found a video of a similar looking, but possibly different Westinghouse position indicator...

Here is the video: