Gas cooled and insulated transformer

Claim 1

IN A TRANSFORMER, A PRESSURE-TIGHT TANK INCLUDING A BODY, A LID ON SAID BODY, A BOTTOM FIXED ADJACENT THE LOWER END OF SAID BODY, A FLOOR WITHIN SAID BODY SPACED ABOVE SAID BOTTOM, SAID TANK FLOOR AND TANK BOTTOM DEFINING A PRESSURE CHAMBER AT THE LOWER PART OF SAID TANK; A CORE AND COIL ASSEMBLY SUPPORTED WITHIN SAID TANK AND SEATED ON SAID FLOOR, SAID ASSEMBLY INCLUDING AN OVAL COIL HAVING PASSAGE-LIKE OPENINGS FORMED BETWEEN LAYERS OF SAID COIL; SAID TANK BEING CHARGED AND FILLED WITH AN INERT, NON-TOXIC, NON-INFLAMMABLE GASEOUS COMPOUND HAVING A DENSITY IN EXCESS OF THE DENSITY OF ATMOSPHERE; A PLURALITY OF HOLLOW COOLING TUBES ATTACHED TO THE EXTERIOR OF SAID TANK, SAID TUBES AT THEIR UPPER ENDS BEING IN FLOW COMMUNICATION WITH THE UPPER PART OF SAID TANK AND AT THEIR LOWER ENDS COMMUNICATING WITH SAID CHAMBER; APERTURES THROUGH SAID FLOOR UNDERLYING SAID OPENINGS IN SAID COIL AND COMMUNICTING SAID CHAMBER WITH SAID COIL OPENINGS; WHEREBY TO ESTABLISHED GAS FLOW COMMUNICATION UPWARDLY FROM SAID CHAMBER TOWARD SAID COIL AND OUTWARDLY FROM SAID TANK THROUGH SAID TUBES FOR COOLING SAID TRANSFORMER AND DISSIPATING THE HEAT GENERATED DURING TRANSFORMER OPERATION; AND BAFFLE MEANS SUBSTANTIALLY COMPLETELY BLOCKING THE FLOW OF GAS FROM SAID CHAMBER EXCEPT TO PASS THROUGH THE OPENINGS IN SAID COIL, SAID BAFFLE MEANS COMPRISING A VERTICALLY DISPOSED SLEEVE CLOSELY EMBRACING THE PERIPHERY OF SAID COIL, SAID SLEEVE EXTENDING FROM SUBSTANTIALLY THE UPPER EDGE OF SAID COIL DOWNWARDLY ALONG THE EXTERIOR THEREOF AND BEING SEATED ON SAID FLOOR AT ITS LOWER EDGE BELOW THE LOWER EDGE OF SAID COIL AND SPACED THEREFROM, SAID SLEEVE ENGAGING THE FLOOR PART OF SAID TANK OUTWARDLY FROM SAID FLOOR APERTURES, AND SAID SLEEVE ENGAGING THE WALL PART OF SAID TANK AT THE AXIALLY OPPOSITE PARTS OF SAID OVAL COIL.