Patent ID: 7153392

Claim:
A shoe press used in a papermaking machine, comprising: a shoe roll with a blanket which houses a shoe assembly that, in cooperation with an external backing roll, forms an extended nip proper; an oil circulation piping system for removing oil from an interior of the shoe roll and transferring the oil to an oil trap while the machine is running; a suction fan connected the piping system; and an oil siphon connected to the oil circulation piping system, the oil siphon being adapted to move towards and away from the blanket in the interior of the shoe roll so that, while the roll is stopped, excess amounts of the oil can be removed from the interior of the blanket by means of the siphon by a pressure differential generated by the suction fan, wherein the oil siphon is provided with an actuator adapted to elevate the oil siphon into an upper position when the papermaking machine is running and to sink the siphon operational into a lower position when the machine is stopped.