I was ceded a "Sperti flange bar" model FB-6. It is a new one to me. It is
probably pre-1970, given the design, lettering, and general condition, but how
old it actually is, I do not know. It has pivoted feet marked "L" and "R", which
I take to be left and right. I can't find any mention of the tool via google, no
inventor or patent information (Vincent Sperti has a few patents in mechanisms
and devices, but not this tool), and I can find no manufacturer that fits
(Sperti-Faraday doesn't fit, and I most assuredly don't think it has anything to
do with the inventor of Preparation H)

A few images:

https://postimg.org/image/lu3atw7uj/

https://postimg.org/image/e1cn1wu5n/

https://postimg.org/image/pqgmpvdej/

https://postimg.org/image/bk0vunpor/


My best guess is that it is an ironworker tool for grabbing a beam flange, but
it is only a guess.

https://postimg.org/image/ri9lkrp1n/

For positioning a beam? For climbing columns? Nothing to do with flnged beams?
The source of the tool has no idea, and the only flange bar I have ever run
across is a specialized beam clamp-and-bar for tying off a safety line. Anyone
have knowledge of this tool, its intended use, or the maker?



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