leadscrew nut re taper attachment

[petertha]

(10-24-2012, 07:13 PM)f350ca Wrote: On my Summit the taper attachment is either locked to the bed for cutting tapers or moves with the carriage for straight cuts. You do nothing to the cross feed, it still functions when cutting a taper....

Thats interesting. I wonder how it works. Do you have a parts breakdown handy? I found this link to a Summit, looks similar to mine. But as I'm finding, there seem to be lots of variations out there.
http://www.summitmt.com/machine-tools/ma...-for-sale/

Here is what the King website shows for taper attachement. And of course their (now) big bold caveat about ordering it up front.