Closed apparatus for the wet treatment and particularly dyeing of textiles with liquor heated to above 100 u deg. c.

Claim 1

A CLOSED APPARATUS FOR WET TREATMENT OF TEXTILE MATERIAL WITH HOT TREATING LIQUOR AT ABOUT 100* C., INCLUDING A COMPLETELY FILLED CLOSED VESSEL CONTAINING THE TEXTILE MATERIAL TO BE TREATED WITH THE HOT TREATING LIQUOR UNDER PRESSURE, INTERNAL CONDUITS EXTENDING THROUGH SAID TEXTILE MATERIAL TO CARRY LIQUOR PASSING THROUGH SAID TEXTILE MATERIAL, A REVERSIBLE CIRCULATING PUMP TO CIRCULATE LIQUOR THROUGH THE CLOSED VESSEL, EXTERNAL CONDUITS RESPECTIVELY CONNECTING SAID PUMP TO SAID VESSEL AND TO SAID INTERNAL CONDUITS TO FEED LIQUOR FROM SAID PUMP THROUGH SAID INTERNAL CONDUITS AND THROUGH SAID VESSEL BETWEEN THE INLET AND OUTLET OF SAID PUMP, A SUPPLEMENTAL PRESSURE PUMP, AN AUXILIARY FRESH TREATING LIQUOR CONTAINING VESSEL, SAID PRESSURE PUMP SERVING TO FEED FRESH LIQUOR TO THE CLOSED VESSEL AND ALTERNATIVELY TO SHORT CIRCUIT TREATING LIQUOR FROM SAID PRESSURE PUMP BACK TO THE AUXILIARY VESSEL, ADDITIONAL EXTERNAL CONDUITS CONNECTED TO AND LEADING FROM SAID PRESSURE PUMP TO RECEIVE LIQUOR FROM THE BOTTOM OF THE AUXILIARY VESSEL AND FEED IT TO SAID PRESSURE PUMP AND FROM THE PRESSURE PUMP TO THE FIRST MENTIONED EXTERNAL CONDUITS AND RETURN CONDUIT LEADING BACK TO THE UPPER PART OF THE AUXILIARY VESSEL AND VALVE MEANS ON SAID ADDITIONAL CONDUITS TO CONNECT SAID PRESSURE PUMP ALTERNATELY TO SAID ADDITIONAL EXTERNAL CONDUITS AND TO SAID RETURN CONDUITS TO SAID AUXILIARY VESSEL, A CONNECTING CONDUIT CONNECTING THE CLOSED VESSEL TO DISCHARGE TREATING LIQUOR FROM SAID CLOSED VESSEL TO THE AUXILIARY VESSEL, SAID DISCHARGE TAKING PLACE WHEN SAID PRESSURE PUMP IS FEEDING FRESH LIQUOR TO THE CLOSED VESSEL AND A PRESSURE RELIEF VALVE ON SAID CONNECTING CONDUIT TO RELIEVE LIQUOR FROM THE FIRST VESSEL TO THE AUXILIARY VESSEL THROUGH SAID CONNECTING CONDUIT.