BENDING GLASS SHEETS Russian patent published in 2010 - IPC C03B23/27 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of bending glass sheets. At least one glass sheet is placed in a frame. The frame has movable lateral sections. The profile of the frame at the end of the process corresponds to that profile which the glass sheet should have on the periphery. The frame is put into a furnace in which temperature progressively rises to the glass softening point. The glass is deformed under its own weight. Movement of lateral sections of the frame at the bending steps is at least partially controlled independent of the softening state of the glass. After bending, temperature is lowered until the glass hardens.

EFFECT: prevention of unwanted deformations when forming small-radius curves on the glasing height combined with cross bending.

14 cl, 8 dwg