New Brevoort Formspring

Shouldn't Doctor Doom's time machine, in the past, been nonexistent when Wolverine and Sue Storm traveled to the past to to kill Hank Pym? At that time, Nick Fury was young and not the paranoid director of S.H.I.E.L.D. Are you basically saying that the time machine itself ALSO travels through space and time? If so, that can't be as time travel require an anchor to depart and a set anchor in time and space to arrive.