Nice score- now we know who to send the saws to!
I had an old Foley saw filer that I gave away to one of my 'tool guys'-
(you know-the guys that go to all estate sales and so on), because I didn't
have any of the ratchet bars that went with it, but he had the saw filer
with the bars.  The bars are the things that get lost on these things
because families don't know what they are and they end up in the scrap
yard.    I think both the re-toother  and the saw filers use the same or
similar ratchet bars and saw holding bars - but I'm not sure if the models
have changed over the years.  It's basically just a long rack that the
machine clicks through, one tooth at a time.  Maybe you could take some
photos of your machine and put them up on line?  There are several websites
that were around years ago that had tons of helpful advice.  Videos of a
new machine in operation would be very nice also.
  By the way, if the anvil or die is missing from your Foley re-toother,
Foley (Foley Belsaw I think its called now) will still sell you these parts
that fit their old re-toothing machines, but they are kind of pricey as I
recall (I called them a couple years ago- maybe a couple hundred dollars?
Anyway, probably still cheaper than getting a local machinist to make a die
pair and heat treat them for you).
Cheers
Claudio