System for concealing and cooling electric transformers

Claim 1

IN COMBINATION, A PLURALITY OF ELECTRIC TRANSFORMERS, EACH OPERATIVE TO CONVERT A PRIMARY VOLTAGE TO A SECONDARY VOLTAGE AND HAVING HEAT DEVELOPED AS A BY-PRODUCT OF SUCH CONVERSION, AN ENCLOSURE DEFINING AN UNDERGROUND VAULT PROVIDING A SUBSTANTIALLY CLOSED SPACE RECEIVING SAID TRANSFORMERS THEREIN, AN ELONGATED LIGHT POLE ADJACENT SAID ENCLOSURE AND EXTENDING UPWARDLY ABOVE THE GROUND LEVEL AND ABOVE SAID SPACE AND PROVIDING A LONGITUDINALLY DISPOSED FLOW PASSAGE HAVING A DISCHARGE PORT ADJACENT ITS UPPER END PORTION AND AN INLET PORT ADJACENT THE LOWER END PORTION THEREOF IN COMMUNICATION WITH SAID SPACE AND THROUGH WHICH AIR CAN FLOW OUTWARDLY FROM SAID SPACE AND UPWARDLY THROUGH SAID FLOW PASSAGE FOR ESCAPE THROUGH SAID DISCHARGE OPENING THEREOF, AND A VENTILATION INLET SYSTEM HAVING AN INLET OPENING LOCATED ADJACENT THE LOWER END PORTION OF SAID POLE BUT ABOVE THE GROUND LEVEL AND AN OUTLET OPENING COMMUNICATING WITH SAID SPACE, AND A MANIFOLD LOCATED WITHIN SAID SPACE AND COMMUNICATING WITH SAID INLET OPENING AND BEING PROVIDED WITH A PLURALITY OF SPACED-APART APERTURES OPENING INTO SAID SPACE TO DISTRIBUTE THEREABOUT AND ABOUT THE TRANSFORMERS THEREIN THE AMBIENT AIR FLOWING INTO SAID SPACE THROUGH SAID VENTILATION INLET SYSTEM, THE DIFFERENCE IN ELEVATION BETWEEN SAID VENTILATION INLET OPENING AND SAID DISCHARGE OPENING TOGETHER WITH ANY ELEVATION IN TEMPERATURE WITH RESPECT TO AMBIENT TEMPERATURE OF THE AIR WITHIN SAID PASSAGE BEING EFFECTIVE TO INDUCE A FLOW OF AMBIENT AIR INTO SAID SPACE THROUGH SAID VENTILATION INLET SYSTEM AND OUTWARDLY FROM THE SPACE THROUGH SAID PASSAGE TO THEREBY COOL SAID TRANSFORMER.