Yep, Kinda what I thought too. Back in the 50's my Dad manufactured some rotary snow blowers for tractors. Was a fairly new concept back then.....and they were WAY overbuilt compared to today's machines. They had two big HD rotors kinda like that shown. I remember them trying the snow blower to load peat ground into a truck - for a bagged peat operation. Kinda strange.....but inventive minds tried all kinds of stuff in those times.