I was seeing several YouTube machinist channels show off their vertical bridgeport type machines with steering wheel quill feed. A few weeks ago, I found a seller that wanted $150, and had an adapter for a few Wells-Index machines, but not my model. So while checking to see what was different, I figured I could make the adapter from some scrap, and bought the wheel from eBay for $30.
The drive into the existing quill shaft was 2 1/4" roll pins 180 degrees apart, on a 1 in bolt circle (I had a assortment box of roll pins, that when measured, were not 1/4" but 6mm, so I drilled the holes for a nice fit). The steering wheel uses 6 M5x0.8 screws on a 70mm bolt circle (these came with the steering wheel). Easy work on the rotary table.
View attachment 430959
The original quill handle came bent and brazed repaired from the previous owner.
I have not used the machine, so I can't say if this is a good modification or not. It does look different.