According to one or more embodiments disclosed herein, a glass sheet may be formed by a method which includes supplying a feed of molten glass to an upper surface of a pair of forming rolls, and rotating the pair of forming wheels to continuously form a glass sheet from the molten glass. The pair of forming rolls may be spaced apart by a forming gap, and the forming gap may have a width of less than or equal to about 800 microns. The molten glass may have a viscosity of less than or equal to about 200 poise. The glass sheet may have a thickness of less than or equal to about 800 microns immediately upon passing though the forming gap.

An apparatus and method for positioning and receiving the shaft of a glass forming roll includes a rotatable member and a radially moveable member mounted on the rotatable member, the radially moveable member having a bore for receiving the shaft of the glass forming roll and movable between a first position and a second position, the first position closer to an axis of rotation of the rotatable member than the second position

An apparatus and method for positioning and receiving the shaft of a glass forming roll includes a rotatable member and a radially moveable member mounted on the rotatable member, the radially moveable member having a bore for receiving the shaft of the glass forming roll and movable between a first position and a second position, the first position closer to an axis of rotation of the rotatable member than the second position

An ionically conductive glass (or glassy) monolithic preform having a certain shape, size, and dimension may be made from a monolithic precursor material (e.g., an ingot or boule of ion conductive glass), generally of a different shape and size.

Various aspects of methods and systems are provided, which detail: a method, comprising: depositing a hot, flexible glass-containing ribbon along a plurality of sequentially conveyed molds; rolling a pinch roller over the surface of the glass-containing ribbon, such that at least one pinch region is actuated in the glass ribbon as the glass ribbon is pinched between a pinch edge of the pinch roller and the surface of the mold; and cooling the glass ribbon, separating the glass ribbon along the pinch region into discrete glass parts.

A method of manufacturing glass ribbon can comprise feeding molten material through a minimum width of a first gap defined between a first roller and a second roller of a first pair of rollers. A first pool of molten material can be formed upstream from the minimum width of the first gap. A ribbon of molten material can exit the first gap. The methods can further include passing the ribbon of molten material through a minimum width of a second gap defined between a first roller and a second roller of a second pair of rollers. The minimum width of the first gap can be greater than the minimum width of the second gap. A second pool of molten material can be formed upstream from the minimum width of the second gap.

A method for melting vitrifiable materials to produce flat glass, including: providing a furnace including: a main melting tank, an auxiliary melting tank, a fining tank, a neck, at least one inlet means located at the main melting tank, an outlet means located downstream of the fining tank, and at least one extraction means of a flue gas; charging the vitrifiable materials including raw materials and cullet in the main melting tank with the at least one inlet means and/or in the auxiliary melting tank; pre-melting at least a part of the cullet in the auxiliary melting tank and flowing the pre-melted cullet to the main melting tank; melting the vitrifiable materials in the main melting tank; fining the melt in the fining tank; flowing the melt from the fining tank to a working zone through the outlet means; and capturing CO.sub.2 from the flue gas.

A method for melting vitrifiable materials to produce flat glass, including: providing a furnace including: a main melting tank, an auxiliary melting tank, a fining tank, a neck, at least one inlet means located at the main melting tank, an outlet means located downstream of the fining tank, and at least one extraction means of a flue gas; charging the vitrifiable materials including raw materials and cullet in the main melting tank with the at least one inlet means and/or in the auxiliary melting tank; pre-melting at least a part of the cullet in the auxiliary melting tank and flowing the pre-melted cullet to the main melting tank; melting the vitrifiable materials in the main melting tank; fining the melt in the fining tank; flowing the melt from the fining tank to a working zone through the outlet means; and capturing CO.sub.2 from the flue gas.