Thanks gents -- The Alloy Artifacts site was great and where I started before I posted the question. That's where I figured out what the wrenches were. The site, though, assumes you know what a Tool Post Wrench or a Textile Pattern Wrench is because it doesn't go into any detail beyond just the nomenclature.
These wrenches I have are J.H. Williams tools. And early ones, too, judging by the patent stamps.