Chamber For The Manufature Of Float Glass With Diverging Side Wall Blocks

In the float process, heat losses from the flow-out zone of the chamber are reduced by contouring the refractory side walls to remain a substantially fixed distance from the edges of the glass ribbon, and to diverge from one another at a rate similar to the divergence of the glass ribbon as it spreads out on the molten metal bath. The side walls are therefore thicker at the upstream entrance of the chamber, and the width of the bottom graphite liner and tin are less, thereby reducing the area for heat loss.