I recently grabbed a vintage, 1950’s Electrolux Assistent mixer from eBay. Included with the mixer was this set of beaters.
They are angled when attached to the mixer, with a rubber drive wheel that turns the beaters when they are pressed against the rotating bowl. They are too tall to fit IN the bowl.
How were they supposed to be used? You have to press the drive wheel into the side of the bowl and use another mixing bowl on the counter?