Coating hot glass with metals or metal compounds, especially oxides

Abstract From the Canadian patent

A metal or metal compound coating is formed on a face of a hot ribbon of freshly formed glass as it travels forwardly through a coating station where coating precursor material is sprayed onto the surface of the glass. The coating precursor material is sprayed in one or more streams of droplets which is or are directed downwardly and forwardly towards the ribbon and is repeatedly displaced to and fro across the ribbon path so that the ribbon is scanned by the droplet stream(s). Especially in order to form a thick coating of tin oxide on a rapidly moving ribbon the velocities, of the droplets in the stream(s) are such that substantial splashing occurs at the ribbon face. Gas is continuously …