Suction roll with lubricating and washing showers

Claim 1

IN A SUCTION DEVICE FOR PAPER MAKING MACHINES COMPRISING A ROTATABLE HOLLOW ROLL HAVING PERFORATIONS IN ITS PERIPHERY, A SUCTION BOX IN SAID ROLL HAVING A SLOT THEREIN NEXT TO SAID ROLL AND SEALING MEANS FOR SAID SLOT SLIDABLY ENGAGING THE INSIDE OF SAID ROLL AS IT ROTATES; THAT IMPROVEMENT FOR SUPPLYING LUBRICATING WATER FOR SAID SEALING MEANS AT ONE RATE OF FLOW AND FOR SUPPLYING WASHING WATER FOR THE INSIDE OF SAID ROLL AT A GREATER RATE OF FLOW, COMPRISING, PIPE MEANS SUPPORTED INSIDE SAID ROLL, A SOURCE OF WATER UNDER PRESSURE CONNECTED TO SAID PIPE FROM OUTSIDE SAID ROLL, A SERIES OF NOZZLES CARRIED BY SAID PIPE POSITIONED TO SPRAY WATER THEREFROM AGAINST THE INSIDE OF SAID ROLL, AND CONTROL MEANS ASSOCIATED WITH SAID NOZZLES AND OPERABLE BETWEEN A FIRST POSITION TO PROVIDE RESTRICTED NOZZLE OPENINGS FOR SPRAYING OF WATER FROM SAID NOZZLES AT SAID ONE RATE OF FLOW FOR SUPPLYING LUBRICATING WATER AND A SECOND POSITION TO PROVIDE ENLARGED NOZZLE OPENINGS FOR SPRAYING OF WATER FROM SAID NOZZLES AT SAID GREATER RATE OF FLOW FOR SUPPLYING WASHING WATER.