Device for manipulating the edge of a ribbon of glass comprising a wheel, and float glass installation comprising such a device. A device for manipulating the edge of a ribbon of pasty glass travelling on a bath of liquid in a float chamber, comprising a wheel (1) positioned at a distal end of a barrel (2), the wheel (1) being turned about its own axis, this axis being concurrent with the longitudinal geometric axis of the barrel and making therewith a permanent fix angle determined by design, the barrel (2) having a possibility for adjustment in rotation about its longitudinal axis, and installation comprising such a device.

According to one embodiment, a method for forming a laminated glass sheet includes forming a multi-layer glass melt from a molten core glass and at least one molten cladding glass. The multi-layer glass melt has a width W.sub.m, a melt thickness T.sub.m and a core to cladding thickness ratio T.sub.c:T.sub.cl. The multi-layer glass melt is directed onto the surface of a molten metal bath contained in a float tank. The width W.sub.m of the multi-layer glass melt is less than the width W.sub.f of the float tank prior to the multi-layer glass melt entering the float tank. The multi-layer glass melt flows over the surface of the molten metal bath such that the width W.sub.m of the multi-layer glass melt increases, the melt thickness T.sub.m decreases, and the core to cladding thickness ratio T.sub.c:T.sub.cl remains constant as the multi-layer glass melt solidifies into a laminated glass sheet.

According to one embodiment, a method for forming a laminated glass sheet includes forming a multi-layer glass melt from a molten core glass and at least one molten cladding glass. The multi-layer glass melt has a width W.sub.m, a melt thickness T.sub.m and a core to cladding thickness ratio T.sub.c:T.sub.cl. The multi-layer glass melt is directed onto the surface of a molten metal bath contained in a float tank. The width W.sub.m of the multi-layer glass melt is less than the width W.sub.f of the float tank prior to the multi-layer glass melt entering the float tank. The multi-layer glass melt flows over the surface of the molten metal bath such that the width W.sub.m of the multi-layer glass melt increases, the melt thickness T.sub.m decreases, and the core to cladding thickness ratio T.sub.c:T.sub.cl remains constant as the multi-layer glass melt solidifies into a laminated glass sheet.

The present disclosure discloses a float bath that may enhance spreadability of a poured glass melt when pouring the glass melt, an apparatus for manufacturing a float glass comprising the same, a method for manufacturing a float glass using the float bath, and a float glass produced by the method. The float bath according to the present disclosure receives a metal melt and allows a glass melt poured onto the metal melt to float and move from upstream to downstream, and includes a guiding unit provided at a part where the glass melt is poured, to come into contact with the side of the poured glass melt to guide a sidewise spreading path of the glass melt to expand sidewise spreading of the glass melt.

The present disclosure discloses a float bath that may enhance spreadability of a poured glass melt when pouring the glass melt, an apparatus for manufacturing a float glass comprising the same, a method for manufacturing a float glass using the float bath, and a float glass produced by the method. The float bath according to the present disclosure receives a metal melt and allows a glass melt poured onto the metal melt to float and move from upstream to downstream, and includes a guiding unit provided at a part where the glass melt is poured, to come into contact with the side of the poured glass melt to guide a sidewise spreading path of the glass melt to expand sidewise spreading of the glass melt.

The invention relates to a method for producing a glass substrate for vehicle glazing, in particular for a windscreen of a vehicle, which comprises hot forming of a borosilicate glass, wherein in a hot forming section, at least during stretching of the glass (8) in the flow direction or longitudinal direction of movement of the glass (8), an aging velocity Av of the glass (8) to be hot formed does not exceed 10 mm/s and an aging velocity Av of the glass preferably does not undershoot 3 mm/s, and also relates to glass substrates for vehicle glazing produced by such method as well as to windscreen projection devices and driver assistance systems comprising such glass substrates.

The invention relates to a method for producing a glass substrate for vehicle glazing, in particular for a windscreen of a vehicle, which comprises hot forming of a borosilicate glass, wherein in a hot forming section, at least during stretching of the glass (8) in the flow direction or longitudinal direction of movement of the glass (8), an aging velocity Av of the glass (8) to be hot formed does not exceed 10 mm/s and an aging velocity Av of the glass preferably does not undershoot 3 mm/s, and also relates to glass substrates for vehicle glazing produced by such method as well as to windscreen projection devices and driver assistance systems comprising such glass substrates.