Glass Wool: Steam-Blown from an Electrically Reheated Glass Stream (Slayter, US 2,133,235)

Very fine glass wool needs very hot glass at the blower, but a stream loses heat on its way out of the furnace. Games Slayter of Owens-Illinois (filed 1933, US 2,133,235) reheated the stream as it left: it runs through a silicon-carbide element lined with platinum, then a steam blast draws it into fine filaments, which a conveyor carries under a roll that presses them into a loose mat. Not given: the glass, any temperature, the current, the steam pressure and the sizes. Source: G. Slayter, US 2,133,235 (1938), Figs. 1-4. Picture: his Fig. 1.