Abstract: A method for laminating glass sheets is disclosed. A sandwich structure sheet moving in a heating furnace on rollers is heated by two-sided hot air blasting which is carried out by several successive blowing aperture sections, and, to reduce or prevent the formation of air bubbles in finished laminated glass, the heating of the rear end of the sandwich structure sheet is prevented by cutting off the hot air blasting of at least one blowing aperture section when the rear edge of the sandwich structure sheet approaches the blowing aperture section. An apparatus for laminating glass sheets is also disclosed, comprising a heating furnace, a pair of press rolls and means for establishing location data on the sandwich structure sheet. The heating furnace is provided with a roller track, a blower, a heating resistor, an air distribution conduit, and several successive blowing boxes with closing means.

Abstract: A method for laminating glass sheets is disclosed. A sandwich structure sheet moving in a heating furnace on rollers is heated by two-sided hot air blasting which is carried out by several successive blowing aperture sections, and, to reduce or prevent the formation of air bubbles in finished laminated glass, the heating of the rear end of the sandwich structure sheet is prevented by cutting off the hot air blasting of at least one blowing aperture section when the rear edge of the sandwich structure sheet approaches the blowing aperture section. An apparatus for laminating glass sheets is also disclosed, comprising a heating furnace, a pair of press rolls and means for establishing location data on the sandwich structure sheet. The heating furnace is provided with a roller track, a blower, a heating resistor, an air distribution conduit, and several successive blowing boxes with closing means.

Abstract: By means of a method and an apparatus for laminating glass sheets, the effect of the variation of the initial temperature of the glass on the success of the lamination furnace treatment and the variation of the quality of the laminated glass can be eliminated, thus reducing quality costs. In the method, a sandwich structure sheet including glass and laminating film layers is heated in a lamination furnace, after which the heated sandwich structure sheet is conveyed between a pair of press rolls, and before the lamination furnace is measured the temperature of at least one glass sheet comprised in the sandwich structure sheet, and on the basis of that data, the heating effect of the lamination furnace on the sandwich structure sheet is changed. The apparatus comprises, upstream of the lamination furnace, a temperature measuring device for measuring the temperature of the glass sheets.

Abstract: By means of a method and an apparatus for laminating glass sheets, the effect of the variation of the initial temperature of the glass on the success of the lamination furnace treatment and the variation of the quality of the laminated glass can be eliminated, thus reducing quality costs. In the method, a sandwich structure sheet including glass and laminating film layers is heated in a lamination furnace, after which the heated sandwich structure sheet is conveyed between a pair of press rolls, and before the lamination furnace is measured the temperature of at least one glass sheet comprised in the sandwich structure sheet, and on the basis of that data, the heating effect of the lamination furnace on the sandwich structure sheet is changed. The apparatus comprises, upstream of the lamination furnace, a temperature measuring device for measuring the temperature of the glass sheets.

Abstract: A method for laminating glass sheets is disclosed. A sandwich structure sheet moving in a heating furnace on rollers is heated by two-sided hot air blasting which is carried out by several successive blowing aperture sections, and, to reduce or prevent the formation of air bubbles in finished laminated glass, the heating of the rear end of the sandwich structure sheet is prevented by cutting off the hot air blasting of at least one blowing aperture section when the rear edge of the sandwich structure sheet approaches the blowing aperture section. An apparatus for laminating glass sheets is also disclosed, comprising a heating furnace, a pair of press rolls and means for establishing location data on the sandwich structure sheet. The heating furnace is provided with a roller track, a blower, a heating resistor, an air distribution conduit, and several successive blowing boxes with closing means.

Abstract: The mould construction for bending glass sheets includes a framework and support plates on vertical planes, the curvature of the upper edge of the plates essentially corresponding to the desired bending curvature of the glass sheet. On the upper edges of the support plates are slots and pipes forming the mould surface are positioned in the slots. The slots are dimensioned with play with respect to the pipes, but to lock the upward movement of the pipes from the slots. The support plates are supported on the framework in such a way that one end of the mould surface is lower than the other end. The difference in height, that is, the inclination of the mould surface, is dimensioned so as to effect the resting of the edge of the glass sheet placed on the mould against the end stoppers during the bending stage.