Food Processor - Antony Worrall Thompson by Breville Model No. FP3

I am looking for a part for this food processor, but do not know the name of the part. I inherited this machine, but there wasn't a part that connected the blades, cutters etc. to the part that stands up in the centre of the main bowl, so its use is very limited. Have searched the internet and found only one supplier parts2go, but they say they cant help me. Anybody out there who owns one of these machines, and can tell me the name of the part, I would be extremely grateful.