MEJORAS EN APARATO TEMPLADOR Y DOBLADOR DE HOJAS DE VIDRIO Y METODO PARA EL CONTROL DE LA TEMPERATURA DE LAS MISMAS

摘要

A method of and apparatus for controlling the temperatures of glass sheets moving bodily through a furnace by automatically varying the heat exposure time of the sheets in the furnace in accordance with temperature variations from a desired level detected in heated sheets exiting the furnace.