Here's a similar less polished turd from the same company. Note the right-angle drive/clutch mechanism at the headstock. It uses the rubber faced disk on the headstock to power the longitudinal feed mechanism. The original headstock disk was damaged beyond repair, so I made a new one from aluminum stock. It can be interchanged for a similar disk for sanding.
I couldn't find any information on the drive/clutch mechanism. I believe it was an add on by the previous owner. I got the machine when a friend's father passed away and the family was cleaning out the garage. Apparently, he bought it new in 1936 or there abouts. No one in the family had any interest in it so rather than scrap it they offered it to me.
I spent a little time bringing it back to life thinking my nephews might enjoy it. Unfortunately, mom thought they were too young, so I gave it to another kid who thought he might be interested in learning the skill.