Boice-Crane 42" Bed Lathe

I was recently given a Boice-Crane 42” Bed Lathe, and have successfully turned spindle related projects; however, I want to turn bowls and vases with this equipment.

I have a Nova G3 Woodturning Chuck, but need an adapter that will fit the chuck threads…..and be able to be threaded to a 1” diameter male drive with a treading of 9 threads in 5/8ths of an inch. If anyone knows where I might acquire such and adapter, I’d be most appreciative of knowing where.

Thanks,
Joe