The Saga that is my Conquest mini-lathe re-furb.

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QUESTION:- I have inherited a 3 PHASE 240v DC MOTOR need a control circuit for it ? loads of guff on 3 PHASE AC motors none on DC pointers PLEASE ........................TIA

If it is a DC motor, and the name plate indicates this as well 3 phase, this would be an electronically commutated motor. This requires a special controller.
Do a google search for "3 phase dc motor controller schematic diagram". As well "BLDC" = 'brush less DC'.
Finding a 240V controller may be difficult. My quick search found many on eBay but all were low voltage i.e.<50V.

Steve