Method of forming a gasket on window shaping mold for preparing such window glass

A method of preparing window glass provided with a gasket at a peripheral portion of a glass sheet for a window comprising the sequential steps of:

• placing a glass sheet in a shaping mold which comprises at least two mold parts to provide an inner cavity in which at least one resilient sealing member is attached to at least one of said two mold parts so as to come in contact with a surface of said glass sheet so that a gasket forming cavity is formed at a peripheral area of said glass sheet by the cooperation of the inner cavity of the shaping mold, the resilient sealing member and the glass sheet,
• subsequently pushing said resilient sealing member against a contacting surface comprising a part of the shaping mold acting in a direction substantially parallel to the surface of the glass sheet in contact with the resilient sealing member in said inner cavity by means of a pushing means no earlier than the assembling of said shaping mold and said glass sheet, and
• injecting a gasket material into said gasket forming cavity to form a gasket.