Shell type transformer

Claim 1

A SHELL TYPE TRANSFORMER COMPRISING, IN COMBINATION, A TANK HAVING THREE VERTICALLY SUPERIMPOSED, BOX-LIKE SECTIONS INTEGRALLY WELDED TOGETHER INCLUDING A BASE SECTION OPEN AT THE TOP AND HAVING A HORIZONTALLY EXTENDING PERIPHERAL LEDGE PORTION SURROUNDING SAID OPEN END, A CENTER SECTION OPEN AT TOP AND BOTTOM, AND A TOP SECTION OPEN AT THE BOTTOM, A MAGNETIC CORE OF STACKED LAMINATIONS SUPPORTED ON SAID LEDGE PORTION, SAID CENTER SECTION SURROUNDING SAID CORE AND BEING SECURED TO SAID BASE SECTION ADJACENT THE EXTERNAL MARGIN OF SAID LEDGE PORTION, SAID CENTER SECTION HAVING AN INTERNAL BRACE INTEGRAL THEREWITH EXTENDING HORIZONTALLY INWARD AROUND THE INTERIOR PERIPHERY THEREOF ABOVE SAID CORE, A PLURALITY OF ADJUSTABLE CLAMPING MEANS ACCESSIBLE FROM THE INTERIOR OF SAID CENTER SECTION MOUNTED IN HORIZONTALLY SPACED APART RELATION ON SAID BRACE AND ADAPTED TO BE ADVANCED VERTICALLY TOWARD AND AWAY FROM SAID STACKED LAMINATIONS FOR CLAMPING SAID CORE AGAINST SAID LEDGE PORTION, SAID TOP SECTION BEING AFFIXED TO THE UPPER END OF SAID CENTER SECTION.