Dynomometer test as i doubt that engine would have the capacity to swing a generator that size at the speed required to provide any useable power...
Plus the bed shows evidence of having various pads and mounts for other stuff...
Cut a shoulder on it and launch it in her freezer to shrink summat on then re-cut thread...?
Or get someone to do an Adam Booth on it and spray weld build up with puddle gun & powder...?
The post drill is by the "silver manufacturing co"
I bought it together with a beam drill, an early Cunliffe & Croom lineshaft driven slotter and a lineshaft driven Plano-mill by Wm Muir