I listened to that video again and most of the sentence that was taken from the video I interpreted like this:

with a base plate of pre-famulated amulite: the outlet plate

surmounted by a malleable logarithmic casing: the outlet box

in such a way that the two spurving screws: the screws holding the plate

are in a direct line with the panametric phlam
so fitted to the ambifacient waneshaft: the holes in the box for the screws

that side fumbling is effectively prevented: that keeps the plate from moving

LOL ...