I used to live near a chicken processing place
It was only a small backstreet place.

They used to get crates of chickens to kill and pluck etc. To kill them, they had something that looked like a spinny thing with what appeared to be 6 funnels attached. They would take the chickens out of the crates, dump them upside down in these funnels, and they would die within a couple of minutes. No rotation apart from to make the job easier for the chicken killer guy.
( His Popiness the Hole Invaded Poland on, Sat 4 Feb 2012, 17:24, Reply)