How do I turn on the hulking machine?

Hint 1 of 8:

There are strange markings in this room and the room outside in the
hallway that will help you with the machine.

Hint 2 of 8:

They show where to put levers into the machine to control it.

Hint 3 of 8:

Oh, you'll need levers, won't you?  One is in the same room as Sophia,
and you might have left the other behind when you saved Sophia.

Hint 4 of 8:

The scepter and hinge pin can be used as two levers.