Wayne Pump Company of Fort Wayne, IN was purchased by C.J. Symington in 1949. Wayne Pump became Symington-Wayne in the 1950s with a name change (upon strike and labor issues). It purchased S-K and Lectrolite in 1962.
In 1964 it also purchased NYE Tool and Die. NYE was run under Symington-Wayne ownership as "NYE Tool Company, Division of Symington Wayne Corporation".
My speculation begins here:
It seems the next 5-10 years resulted in controlling interest change of the Symington-Wayne Corp. to Dresser Industries.....and a legal fight ensued, resulting in Dresser being victorious and a forced merger?
What happened with NYE Tool Company, a division of symington wayne at the point of the Dresser takeover is unclear. I can find nothing of the company post Symington Wayne - I suppose it may have died with that takeover. I know of at least one Symington Wayne division (hose reel) was divested.