@jf 850
Yes, they seemingly did make and sell a considerable number of propellor type slurry agitators.
I was in their workshop once back in the day, to collect a bearing pullers.
They actually had a well equipped setup and did a good bit of welding and fabrication work.
I feel that man's pain operating a one man show, with his wagon.
My late grandfather had 3 Pottinger wagons, in the early 1980's. At the time, each one was usually worked as a stand alone unit. The farmer in question would usually do the mowing. A tractor, wagon and loader would be dispatched to the farmers yard. The driver of the wagon would bring in the grass, with the wagon and push it up too. An MF 50 loader or a Zetor 5545 with a buckrake usually pushed up the silage.
I can vaguley remember accompanying my grandfather in his lorry, to drop off the MF 50 to a cousin's yard. Our cousing was mowing with a Zetor 5511 tractor, with no cab, only a roll bar and a 5'6" mower and my uncle was picking up the silage, with my grandfather's Ford 4000 and Pottinger wagon. Slow but steady progress was the order of the day. The man on the Zetor and mower earned his crust that day, as he was under a lot of pressure to keep ahead of the wagon. While it is nearly 45 years since those days, those memories are still fresh in the head. However, it would have been nice to have had the benefit of a camera phone, to capture those moments in picture format.