Cooling arrangement for oil-filled electric transformers or reactors

Claim 1

A COOLING ARRANGEMENT FOR DISSIPATING THE HEAT PRODUCED BY LOSSES IN AN OIL-FILLED ELECTRIC TRANSFORMER OR REACTOR, THE LATTER INCLUDING AN OIL TANK, THE ARRANGEMENT COMPRISING AT LEAST TWO GROUPS OF A PLURALITY OF SUBSTANTIALLY VERTICAL RISER SECTIONS TO AND FROM WHICH THE OIL TO BE COOLED IS SUPPLIED FROM SAID TANK IN PARALLEL CONNECTION, BY WAY OF AT LEAST TWO PAIRS OF SUBSTANTIALLY HORIZONTAL, U-SHAPED UPPER DISTRIBUTING AND LOWER COLLECTING HEADER MEMBERS HAVING EACH A BASE OF THE U AND TWO FLANKING LEGS BETWEEN WHICH SAID RISER SECTIONS ARE CONNECTED, UPPER DISTRIBUTING AND LOWER COLLECTING MAIN HEADER PIPES IN SERIES COMMUNICATION BETWEEN SAID TANK AND SAID HEADER MEMBERS, THE LATTER BEING CONNECTED ON OPPOSITE SIDES OF SAID MAIN HEADER PIPES, SUBSTANTIALLY AT THE MIDDLE OF THEIR BASES, AND FACING IN OPPOSITE DIRECTIONS, ALTERNATELY LATERALLY SLANTING PIPE CONNECTIONS BETWEEN SAID HEADER MEMBERS AND AT LEAST ONE OF SAID MAIN HEADER PIPES, AND MEANS FOR SUPPORTING SAID HEADER MEMBERS FROM THE WALL OF SAID TANK.