APPARATUS FOR LIQUID DISPLACEMENT TRANSFER
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Abstract
IN AN APPARATUS FOR PUMPING A FIRST LIQUID OR LIQUID SUBSTANCE, E.G. SLURRY ACCORDING TO THE PRINCIPLE OF ALTERNATE DISPLACEMENT OF THE FIRST LIQUID AND A SECOND OR DRIVING LIQUID IN A VESSEL, THE IMPROVEMENTS ACCORDING TO THE PRESENT INVENTION RESIDE IN THAT A FLOAT MEMBER HAVING A SPECIFIC WEIGHT LYING BETWEEN THOSE OF THE FIRST AND THE SECOND LIQUID AND A PERIPHERAL RING PORTION OF MAGNETIC MATERIAL IS PROVIDED IN THE VESSEL, WHICH IN TURN IS PROVIDED WITH WALL PORTIONS OF NONMAGNETIC MATERIAL AND MAGNETIC PROXIMITY DETECTORS FOR DETECTING THE FLOAT
MEMBER AT ITS UPPER AND LOWER LIMIT POSITIONS, WHEREBY AUTOMATIC CONTROL OF OPERATION OF THE APPARATUS IS IMPROVED TO POSITIVELY PRODUCE SUBSTANTIALLY CONSTANT FLOWS OF THE FIRST AND THE SECOND LIQUID AND THE DANGER OF WATER HAMMER IS AVOIDED.
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