There also seems to have been a King Drill {Manufacturing} Co,(Nebraska City,NB)
which was making cream seperators ~1901 ish....
(Nebraska City,NB)
Doesn't really look like a cream seperator wrewnch, but then, the one picture I found of King's seperator, doesn't look very much like the typical seperator (kinda looks like a bucket with a funnel welded to it ;P)