The power transmission to the spoons remind me of the rod line powered jack pumps in early oil fields. You can still find 100 year old wells with that kind of power distribution but they are rare

https://www.youtube.com/watch?v=lfTfmGIVl4c

https://www.youtube.com/watch?v=M-k_Ip8RgIA

https://www.petroleumhistory.org/OilHistory/pages/Central%20...