Saint-Gobain Vitrage

Saint-Gobain Vitrage International

Saint-Gobain Glass France

Werner Diederen

Hans-Werner Kuster

Karl-Josef Ollfisch

Wilfried Korsten

Knut Dahlhoff

Herbert Radermacher

Carsten Bremer

Luc Vanaschen

Mario Roth

Horst Mucha

Heinz Ueberwolf

Hans-Werner Nowoczyn

Hans-Josef Promper

Waldemar Linberg

Eberhard Liepelt

Werner Kahlen

Heinz G Zilgens

K Rudolf Bartusel

Herbery Sonnleitner

Heinz-Gunter Zilgens

Klaus-Peter Heining

Reiner Zanders

During a process for bending and quenching a window pane, the latter is bent to the desired shape using a forming frame. Next, by means of this same forming frame, the entire surface of both sides of the bent window pane is rapidly cooled, in a quenching station which follows the bending station, by blowing cold air using blowing boxes provided with blowing nozzles. While the entire surface is being rapidly cooled, the edge regions of the window pane which rest on the forming frame are subjected to a blast of additional cold air by the suitable supply of compressed air to the openings passing through the forming frame.

Method and device for curving and tempering a glass sheet

A process for shaping glass sheets with a surface-shaping mould, against which the glass sheets are pressed using a pressure drop produced by sucking out the air from the space lying between the moulding face and that face of the glass sheet on the opposite side from the glass sheet, in which the pressure drop is a maximum at the edge of the glass sheet and decreases towards the center of the glass sheet, because of fact that air is introduced via air-inlet apertures opening into the moulding face, the air is again extracted by subjecting suction apertures made in the moulding face inside the region covered by the respective glass sheet to a vacuum. Furthermore, pressure between the glass sheet and the moulding face also in the region where the air is introduced is set to a value at most equal to the pressure beyond the glass sheet, in order to avoid any formation of bulging. A shaping mould suitable in particular for implementing this process is also described.

Method and device for bending glass sheets

A device used for the bending of plate glass sections (3) includes an oven (1), a bending chamber (6), an upper bending mold installed in the bending chamber (6) in such a manner as to be able to be raised and lowered, a duct producing a flow of hot gas in order to raise the plate glass sections (3) against the upper bending mold, a lower bending mold in the form of a frame that works together with the upper bending mold to ensure bending by compression of the plate glass that is held by the flow of hot gas against the upper bending mold, as well as a movable transport frame (20) which is used to pick up the bent plate glass from the upper bending mold and to transport it to a cooling station located downstream. The lower bending mold in the shape of a frame is comprised of individual frame segments (9, 10, 11, 12) which can be moved between a closed position defining said lower bending frame and an open position in which the segments are separated from one another by such a distance that the upper bending mold can pass through the space defined within the separated segments.

Device used for the bending of plate glass into convex shapes

A straight-through furnace for the heating of glass sheets to their bending and/or toughening temperature is provided with a conveying system bringing the glass sheets (2) in a horizontal position through the furnace (1). The conveying system includes a series of support plates (6). The support plates (6) are each formed of a rigid frame, which is equipped in the manner of a drum skin with a heat-resistant membrane (8) as the support surface for the glass sheet (2).

Straight-through furnaces for heating glass sheets to bending and/or

A production installation for the contact toughening of glass sheets comprises a horizontal furnace for heating the glass sheets, a press containing two liquid-cooled pressing plates, a feed apparatus for transferring the heated glass sheets into the press and a removal apparatus for removing the toughened glass sheets out of the press. To the lower pressing plate, a solids-transmitted sound pick-up is coupled which, if a glass sheet breaks in the press, supplies an electrical signal. From this signal, after suitable processing of the signal, the control device is triggered, and as a result thereof interrupts the process sequence.

Method and apparatus for pressing and contact toughening glass sheets

An installation for the bending of glazings (6) includes a continuous furnace (1), a station for bending by pressing (10) with a lower shape (11) and a suction shape (15), a plate-suction device (50) that can be displaced longitudinally to transport the glazings (6) from the roller conveyor (7) to the station for bending by pressing (10), and an annular frame (35) that can be displaced horizontally to transport the bent glazings (61) to the cooling station (4). Lower shape (11) is mounted stationary lengthwise and a transfer station (30) is provided between the station for bending by pressing (10) and the cooling station (4). The upper shape can be displaced between the station for bending by pressing (10) and the transfer station (30), in synchronism with the plate-suction device (50).

Installation for the bending of glazing

A holding device for glazing panes heated in a horizontal position to a deformation temperature comprises a downwardly facing contact surface, to which the glazing pane is held by suction action. The contact surface is formed of a tensioned fabric of highly heat-resistant fibers. As the glazing panes are sucked on, the fabric yields and bulges upwards. The amount of the bulge of the fabric is dependent upon the tension in the fabric. By the bulging of the fabric the glazing pane undergoes a bending opposite to the succeeding bending of the glazing pane under the effect of its self-weight. This counter-bending compensates an undesired transverse bending during the later bending process.

Holding device and method for counterbending glazing panes

A roller conveyor has an aligning device for glazing panes. The conveyor includes a plurality of aligned rollers forming a roller bed and driven for advancing glass panes in a conveying direction. The aligning device includes a rail disposed above the rollers and mounted such that it extends at a small horizontal angle to the conveying direction. The rail is disposed relative to the rollers such that an edge of a pane being conveyed on the rollers engages the rails so as to align the pane. The aligning device also includes a ring disposed in the roller bed downstream of the rail in the conveying direction. The ring has an external diameter larger than that of the rollers and is positioned relative to the rail such that the ring can engage a lower surface of a pane conveyed on the rollers at a position spaced from the center of gravity of the pane, and so rotate the pane.

Device for aligning glazing panes during transport on a roller conveyor

A lower blow box of a device for heat tempering glass sheets in horizontal position exhibits a series of nozzle plates which are placed at a distance (A) from one another. Between nozzle plates there are obliquely placed sheet-metal chutes, U-shaped in cross section, which laterally convey out the broken glass pieces arising in the breaking of the glass sheet during tempering. The sheet-metal chutes are vibrated with a vibrator.

Blow box for heat tempering glass sheets in horizontal position

The invention relates to a frame for supporting a glass sheet in horizontal position during tempering. The frame is formed by a body and includes bearing members with bearing surfaces which support the glass sheet and which between them delimit channels for evacuation of blowing gases. The bearing members are located in at least a selected region of the body.

Frame for supporting a glass sheet during tempering

A loading device for a horizontal continuous furnace for the heating of glass plates comprises a roller conveyer (6) as part of a continuous conveying system. Support strips (12-15, 32-35) can be lowered and are arranged between conveying rollers (7) of the roller conveyer at a feed station (A). The glass plates (2, 3, 4, 5) are placed on the raised support strips (12-15, 32-35) and are lowered onto the conveying rollers at a preset time by simultaneous lowering of all support strips. Each support strip (12-15, 32-35) is supported independently of the other support strips on separate lifting devices (16-19, 36-39). These lifting devices (16-19, 36-39) are controlled by reflecting photoelectric barriers (22-25, 42-45) respectively dedicated to each support strip such that each support strip (12-15, 32-35) is individually raised to an upper position as soon as a glass plate transferred to the conveying rollers (7) has left the area of that support strip. Glass plates (4, 5) coming from another feed station (B), located upstream, pass below the raised support strips (14, 15) while, simultaneously, the next glass plates can be placed on these same support strips (14, 15).

Loading device for a horizontal continuous furnace for the heating of

A roll (4) for conveying sheets of glass at a heat-tempering temperature horizontally through a heat-tempering furnace enclosure includes a core (10) of refractory metal and a shell (20). The shell (20) is formed of a refractory material composed of a calcium silicate base agglomerate having a specific mass of from 200 to 800 kg/m.sup.3.

Growing community of inventors

Herzogenrath, Germany

Werner Diederen