Industrial furnace roof assembly and components thereof

In a high temperature industrial furnace roof assembly comprising two refractory bricks having adjacent faces, opposing hanger recesses, a hanger rod hole extending from said recesses to the exterior of the top of said assembly, said refractory bricks held in an adjacent position by securement means, a hanger rod having locking means at one end and a hook at the other end, a hanger having opposed refractory engaging projections adapted to engage said hanger recesses, a hanger rod hole allowing free rotation about said hanger rod end above said locking means and locking engagement means which when engaged with said locking means prevents rotation of said hanger rod in relation to said hanger at 90.degree. increments and provides that depression of said one end of said hanger rod into said locking means well permits rotation of said hanger rod with respect to said hanger, the improvement comprising:

• insertion means for inserting said hanger rod into said refractory bricks while held in said adjacent position by said securement means;
• said locking means comprising at least one pair of opposing tabs;
• said hanger forming at least one hanger slot adapted to permit said opposing tabs to pass through said hanger;
• and
• said hanger forming engagement recesses adapted to receive said opposing tabs, said engagement recesses offset laterally with respect to said at least one slot.