Heat exchanger with header tanks

Claim 1

A HEAT EXCHANGER OF THE AUTOMOBILE RADIATOR TYPE, SAID EXCHANGER COMPRISING TWO ELONGATED AND PARALLEL HEADER TANKS AND A STRUCTURALLY CONTINUOUS CORE EXTENDING APPROXIMAELY FROM ONE END TO THE OTHER OF EACH TANK, EACH OF SAID TANKS INCLUDING A TUBE SHEET, SAID CORE DEFINING AIR PASSAGES AND INCLUDING TUBES COOPERATING WITH AND CONNECTING THE TANK TUBE SHEETS FOR ENCLOSING A LIQUID, EACH OF SAID TANKS HAVING TWO COMPONENTS INCLUDING ITS TUBE SHEETS, ONE OF SAID TWO COMPONENTS OF EACH OF SAID TANKS HAVING A FLANGE AT EACH END, SAID FLANGE EXTENDING TOWARD THE OTHER TANK AND HAVING AN INNER SURFACE FACING TOWARD THE EXCHANGER INTERIOR, RIGID SIDE MEMBERS CONTACTING SAID CORE AND COOPERATING WITH SAID TANKS IN SURROUNDING SAID CORE AND SAID PASSAGES, AND AN OUTWARDLY FACING SURFACE ON EACH END OF EACH OF SAID RIGID SIDE MEMBERS SLIDABLY ENGAGING THE CORRESPONDING FLANGE INNER SURFACE TO PREVENT ANY TENDENCY OF A TUBE SHEET TO DISTORT DURING CHANGES IN EXCHANGER TEMPERATURE.