Nutloose, thanks ! (YLSNED).
Never heard of it before - and I was out there at the time ! It was ever thus. Looks a useful bit of machinery, if it had gone into production, would have made mincemeat out of me, just as well HarryTruman said "yes" when he did.
Seriously, what is this thing ?
Now:
"Did you have to get Planning Permission for that Conservatory ?"