Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL228288ApublicationCriticalpatent/NL228288A/xx
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B23/00—Re-forming shaped glass
C03B23/02—Re-forming glass sheets
C03B23/023—Re-forming glass sheets by bending
C03B23/025—Re-forming glass sheets by bending by gravity
C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B27/00—Tempering or quenching glass products
C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling