I am looking at a picture of what appears to be a very nice model
Sheldon lathe:

http://cgi.ebay.com/ws/eBayISAPI.dll...ategory=12 72

The picture makes it appear as if the compound can be positioned
anywhere along the cross slide. In the 9th photo down you can see a
dovetail and what appears to be a gib. Is this actually a gib to
adjust the cross slide or is it a clamp to position the compound along
on top of the cross slide.

I was never sure how they worked and would like to know. (have never
actually seen one)

Bill D