That one makes the one my dad had when I was a kid look like a block!
His had a beat oily 4X4 as the armature stand, and two sheet metal L-brackets with open bearing races stamped on - about like old metal wheel skates used - and a box with a switch to turn it on and off... NO rests everything was freehand!
When I wasn't much above a toddler I got into he garage and turned it on - it made a helacious racket running, and my Mom came and Grabbed me and turned it off. I can still remember her lecturing me not to ever go near it again...
That sucker followed us through 5 more houses...
You could still get those cheap *** bearing brackets not many years ago - I bet they still have them in an old school hardware store...