We have a portable version of this machine in white. When I found it, the cycle dial was broken, but I went to an old parts dealer and bought the last one. There is a C-7 bulb behind an opening in the metal behind the dial that lights up the portion of the cycle that is being performed. There is a one minute overhead spray to warm up the machine (it fills through the brass pipe that connects to the brass fitting on the top of the tank). Then with the motor on, it begins filling for the first wash. It meters the correct amount of water through a metering coil in the motor. When sufficient water has entered, the load on the motor shuts the fill valve. The detergent is washed out of a small recess in the door with a little perforated strip across the lower part so that the detergent does not fall onto the bottom of the tank when the door is closed and get washed away during the 1 minute spray. During this wash, water fills both cups that form the cover of the detergent dispenser. At the end of 5 minutes, the dishwasher drains. Also draining at this time is one side of the two pocket cover for the non-electric detergent dispenser, leaving the pocket that covers the detergent cup for the second wash empty while the pocket next to it on the other side of the pivot point stays full. When the second 5 minute wash begins, the empty side is tossed up, uncovering the fresh detergent. This wash is followed by two one minute rinses and then the fan circulated hot air drying.
The top rack is pretty neat. On the rack is a small stainless steel badge that says turn for tall glasses. So, if you extend the rack all the way and lift the vinyl rack out of the frame it rides in and turn it around, it sits in the frame slightly lower. Then the badge on the front of the rack says turn for taller plates and when you do the notches in the rack line up differently so that the rack is higher in the frame. I was at the beautiful home of some friends' grandparents one Thanksgiving and having fun with their Hotpoint that was similar to this. They said something about the glasses that would not fit when I showed them what the rack would do. They had used the dishwasher for 15 years and had never noticed those instructions.
I think we also still have the built-in model that was put out at the curb in front of a mid 50s house on busy Reno Rd. NW in the District. I had a friend go over there with me in my Celica hatchback. We stopped, released the hatch, grabbed the Hotpoint and pushed it inside, latched the hatch and were driving away in less than a minute.