Thanks for your reply. Yes, I had always understood the sanghaatii to be
the "patchwork cloak" -- indeed, I used to wear (and still have neatly
stored) one when I was a monk in Japan but the name used is different.
I'll deal with your other points in combination with a reply to Bhikkhu
Pesala.
Many thanks.
Stephen Hodge
PS: My study is awash with dictionaries inc the PED