Patent Number: 043483526
Section: claims

1. A storage rack for fuel element bundles, said rack comprising, a bottom plate;  a plurality of vertically disposed square receiving tubes, each tube having an inwardly directed flange resting on said plate and defining a bore for centering a fuel element bundle; and  screws passing through each flange and into said plate to secure said tubes to said plate. 2. A storage rack as set forth in claim 1 wherein said plate has passage openings aligned with each rack said bore. 3. A storage rack as set forth in claim 2 which further comprises a plurality of ribs secured to an underside of said plate to stiffen said plate. 4. A storage rack as set forth in claim 1 which further comprises vertically adjustable screws secured to said plate for vertically adjusting said plate. 5. A storage rack as set forth in claim 1 wherein each tube has lateral inlet openings for the passage of circulating water. 6. A storage rack as set forth in claim 1 which further comprises a cover plate mounted over said tubes and having square openings coaxially of said tubes, a depending frame secured to said plate and vertical angle sections securing said frame to said bottom plate. 7. A storage rack as set forth in claim 6 which further comprises diagonally disposed flat rods secured at each end to an end of an adjacent pair of angle sections. 8. A storage rack as set forth in claim 7 wherein said rack is sub-divided into a plurality of units, each unit having a bottom plate, a cover plate and a plurality of tubes between said plates, and connecting elements screwed into adjacent cover plates to secure adjacent units together. 9. A storage rack as set forth in claim 8 wherein said connecting elements are guides for installation and removal of fuel element bundles. 10. A storage rack as set forth in claim 6 which further comprises a latticework of ribs secured to said cover plate within said frame.