Looking for info/manual for a Roto/Carve table saw carving tool

I just purchased several tools, and among them is an odd item that I’m not familiar with and Google isn’t much help. It’s called a Roto/Carve, or perhaps it’s Roto-Carve. It mounts on a table saw table over a proprietary blade and it cuts a part to shape, such as a spindle or even something like a cabriole leg. I found an ad in an issue of American Woodworker from 1991, but that’s about it. I have no manual or literature and would appreciate a scanned copy or any experiences/horror stories you have to offer.
I’m intrigued and a touch afraid at the same time. Sort of like the first time I saw a Monte Cristo sandwich at Bennigans.

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