Lathe threading disengagement set-up

[Frank S]

I can understand that, A couple of my La Blonds have threaded spindles, but they are a tapered thread nearly impossible to to remove the chuck from the 1917 16 inch with 2 " through bore
the 1951 19 by 60 has a short nose adapter installed. with the 3 jaw the bolt pattern just scrapes the spindle threads and will not unscrew but the 4 jaw uses the larger bolting pattern and it will allow the nose adapter to unscrew. Someday I would like to convert both of them to a d 1-6 and the 26 inch to a D1-8 but the 26 inch has the long nose which uses a spanner nut to hold the chucks in place do it is not bad the only thing I really dislike about the 26 is the 1.5 inch bore