Racks of electrical apparatus

Claim 1

A RACK OF ELECTRICAL APPARATUS COMPRISING A FRAMEWORK, A PAIR OF PLANAR SIDE MEMBERS MOUNTED ON THE FRAMEWORK TO LIE VERTICALLY AND PARALLEL TO ONE ANOTHER ONE ON EITHER SIDE OF THE FRAMEWORK, A PLURALITY OF SHELVES, SHELF SUPPORT MEANS WHICH ARE SECURED TO THE FRAMEWORK AND UPON WHICH SAID SHELVES REST TO LIE PARALLEL TO ONE ANOTHER AND INCLINED TO THE HORIZONTAL AT AN ANGLE OF BETWEEN 12* AND 20* SO AS TO FORM WITH SAID SIDE MEMBERS A PLURALITY OF DUCTS THAT ARE DISPOSED ONE ABOVE THE OTHER, A PLURALITY OF GUIDES, MEANS FIXEDLY TO SECURE SAID GUIDES ON SAID SHELVES, A PLURALITY OF PANELS WHICH ARE SUPPORTED AND LOCATED EACH BY AN ASSOCIATED ONE OF SAID GUIDES SO THAT A PLURALITY OF THESE PANELS LIE SIDE BY SIDE GENERALLY PARALLEL TO ONE ANOTHER IN EACH DUCT, EACH PANEL CARRYING A PLURALITY OF INTERCONNECTED ELECTRICAL COMPONENTS AND HAVING A FRONT PORTION THAT EXTENDS ACROSS ONLY PART OF THE SPACE BETWEEN THE TWO SHELVES DEFINING THE DUCT IN WHICH THAT PANEL LIES SO AS TO LEAVE A GAP THROUGH WHICH MAY PASS AIR TO EFFECT CONVECTION COOLING OF THE COMPONENTS, A PLURALITY OF TWO-PART ELECTRIC CONNECTORS ONE FOR EACH OF SAID PANELS, MEANS FIXEDLY TO SECURE A FIRST PART OF EACH CONNECTOR ON ITS RESPECTIVE PANEL, MEANS TO MAKE ELECTRICAL CONNECTIONS BETWEEN THE FIRST PART OF EACH CONNECTOR AND COMPONENTS CARRIED BY THE RESPECTIVE PANEL, MEANS FIXEDLY TO SECURE THE SECOND PART OF EACH CONNECTOR ON THE SHELF ON WHICH IS MOUNTED THE GUIDE WHICH SUPPORTS THE PANEL ASSOCIATED WITH THAT CONNECTOR, AND MEANS TO MAKE ELECTRICAL CONNECTIONS BETWEEN THE SECOND PARTS OF THE CONNECTORS.