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5876472 |
Method for producing a chemically pretensioned glass body
The invention is directed to a method of producing a chemically pretensioned glass body. In the method, a glass body is provided having a composition in percent by weight on oxide basis: SiO 2 ...
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5302177 |
Tin float bath for manufacturing sheet glass utilizing recuperative gas burners
In the tin float bath process of flat glass production, proposed automatic recuperative natural gas burners will replace the existing electrical heating elements. The use of natural gas instead of...
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4816053 |
Production method for a low cost color CRT with self-polished flat faceplate
The use of a flat faceplate comprised of self-polished float glass substantially reduces the cost of a cathode ray tube incorporating a flat tensioned shadow mask while affording a high degree of...
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4744809 |
Method and apparatus for homogenizing flat glass
Stirring of glass of high optical quality is effected by initiating forming of the glass, such as by the float process, at relatively high temperatures immediately after the glass has been stirred....
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4741750 |
Method and apparatus for cooling in a float glass forming operation
A float glass forming chamber is cooled by circulation of molten metal through passages separate from the molten metal pool upon which the glass is supported.
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4675071 |
Method of preparing thin crystal or film
A stratum of mercury is formed in an atmosphere, for example, helium gas. A liquid material is dropped to the surface of the mercury stratum. Since the surface tension of the mercury is larger than...
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4548636 |
Process for producing a flat glass on a molten metal bath
A process for producing a flat glass, which comprises withdrawing a glass ribbon substantially horizontally from the surface of a molten metal bath while maintaining the level of the surface of the...
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4445924 |
Auxiliary side heater for a float glass forming chamber
In a float glass forming chamber, concentrated heat is applied to edge portions of the glass ribbon being formed by means of portable heating elements carried by side seal members.
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RE31466 |
Process for the adjustment of the glass temperature in a float glass lehr and float glass lehr in order to bring this process into operation
A method and an apparatus for the heat treatment of a float glass ribbon in which a tunnel lehr is provided with arrays of parallel heat-exchange tubes above and below the path of the ribbon and...
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4421541 |
Process and device for the manufacture of glass by flotation
Process for manufacture of plate glass including pouring molten glass onto a bath of molten metal (4) contained in a tank having side wall (1), an inlet wall (2) and an outlet wall (3). The glass...
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4402722 |
Cooling arrangement and method for forming float glass
In a float glass forming chamber, the effects on the glass of sharp temperature gradients associated with coolers are modulated by high mounting of coolers so as to improve the distortion quality...
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4361430 |
Method of and apparatus for selectively heating molten glass stream marginal edges
Apparatus for selectively heating marginal edge portions of a stream of molten glass includes at least two independent heating elements presenting a substantially planar heating face toward the...
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4360373 |
Method of and apparatus for controlling erosion of a refractory threshold
A method of controlling the erosion of a refractory threshold over which molten glass flows transverse to the longitudinal centerline thereof, which includes preferentially cooling the central...
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4279634 |
Dam construction for controlling tin currents in a float glass chamber
This specification is directed to a dam structure which may be used in a float glass chamber for separating a hot entry end of the chamber from a cold exit end of the chamber. The dam has been...
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4217125 |
Method and apparatus for manufacturing flat glass on a molten metal bath
Flat glass is manufactured by the float process and is attenuated to a thickness in the range 1.5 mm to 5 mm. In an attenuation zone of the bath the viscosity of the glass is controlled to regulate...
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4197106 |
Method and apparatus for asymmetric cooling in a glass sheet forming chamber
A method and apparatus for the controlling of longitudinal distortion of float glass is disclosed. It is disclosed that longitudinal distortion may be reduced by asymmetric cooling beneath the...
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4174956 |
Method and apparatus for molten metal flow diffusion in a float glass tank
A method and apparatus for reducing longitudinal distortion in float glass is disclosed. A beam or barrier having cross-hatched grooves is installed below the advancing float glass ribbon in a...
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4174207 |
Method and apparatus utilizing transversely inclined barriers in float glass formation
A method and apparatus for the formation of flat glass are disclosed. The invention involves the utilization of transversely inclined barriers in the molten metal bath of a flat glass forming...
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4148622 |
Process and apparatus for the production of flat glass by the float glass method
An improvement in the process for the production of a glass ribbon by the float glass method, wherein the glass ribbon is formed on a bath of molten metal, caused to float along on top of it and,...
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4116659 |
Apparatus and method for circulating molten metal in a bath used in the manufacture of glass
Method and apparatus are provided for circulating molten metal in a glass-supporting pool of molten metal in a direction counter to the advance of freshly delivered molten glass and outwardly into...
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4115091 |
Method and apparatus for manufacturing glass ribbon on a float bath
A method and apparatus are disclosed for manufacturing glass ribbon by pouring molten glass onto a bath of molten metal. A portion of the molten metal is withdrawn from the molten bath underneath...
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4092140 |
Apparatus and method using heat pipes for manipulating temperature gradients in a glass forming chamber
A plurality of high-temperature operating, corrosion-resistant heat pipes are employed to distribute heat transversely and longitudinally from normally hotter portions of a glass forming chamber to...
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4081261 |
Apparatus and method for cooling a glass ribbon forming chamber
Direct communication is provided between a pool of molten metal in a glass forming chamber and coolers embedded within a refractory bottom liner of the chamber in order to provide for an enhanced...
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4012216 |
Apparatus for the production or treatment of flat glass
Process and apparatus for the production or treatment of flat glass in an elongate tank containing a bath of molten material. Glass is delivered to the bath, and it is advanced along a path in...
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3930826 |
Conditioning flat glass for removal from supporting liquid following forming
Flat glass is produced by advancing a layer of molten glass along the surface of molten metal while cooling it sufficiently to form a continuous sheet of glass which is lifted upwardly from the...
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3930829 |
Movable dam barriers for use in the manufacture of a glass ribbon on a molten metal bath
Movable lateral and longitudinal dam barriers are provided in a glass forming chamber of the type containing a molten metal. The movable lateral dam barriers control longitudinal convection...
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3930828 |
Thermal control in a glass sheet forming chamber
Glass advancing along the surface of a pool of molten metal and being formed into a continuous sheet of flat glass is controllably cooled by advancing over successive molten metal containing...
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3928012 |
Method and apparatus for regulating the temperature of a glass sheet float tank
Flat glass having superior optical quality and having surfaces substantially free of defects is continuously produced in a short forming chamber by delivering molten glass onto a pool of molten...
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3925051 |
Removable dam barrier for a float chamber of a glassmaking apparatus
The bottom of a float chamber of a glassmaking apparatus of the type used for manufacturing flat glass is provided with generally inverted "T"-shaped grooves for receiving dam barrier sections each...
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3771985 |
MANUFACTURE OF FLOAT GLASS
Thin float glass, e.g. in the range 3 mm to 1.5 mm, is manufactured by forming a ribbon of float glass and attenuating the ribbon by applied tractive effort. Distortion in the eventual ribbon is...
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3770407 |
GLASS MANUFACTURING METHODS
The temperature of the molten metal of the bath, in the float process for flat glass manufacture, is regulated by means of thermally conductive fins, e.g. of carbon, inset into the floor of the...
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3650722 |
METHOD AND APPARATUS FOR FORMING BLANKS IN OPTICAL-QUALITY HOMOGENEOUS GLASS
A method for casting blanks of optical-quality glass disks in which the glass is cast on a bath of metallic material. The height of the metal material is varied during casting to ensure a constant...
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3647408 |
METHOD AND APPARATUS FOR MANUFACTURE OF FLOAT GLASS
Thick float glass, e.g., from 8 mm. to 30 mm. thick, is produced by physically halting the lateral flow of the glass when it achieves a predetermined thickness, the layer of molten glass being...
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3645713 |
PROCESS FOR THE TREATMENT OR PRODUCTION OF FLOATING FLAT GLASS
A float tank used in the production or treatment of flat glass floating on a liquid bath has a refractory floor with passageways formed therein. The passageways communicate with openings in...
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3480420 |
PROCESS AND APPARATUS FOR VACUUM PURIFICATION OF THE FLOAT GLASS BATH
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3479171 |
METHOD AND APPARATUS TO PRODUCE TRANSVERSE SURFACE FLOW OF THE FLOAT GLASS BATH METAL
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3438761 |
METHOD AND APPARATUS FOR MANUFACTURING FLOAT GLASS WITH INTERNAL CIRCULATORY BATH HEAT EXCHANGE
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3351446 |
Method and apparatus for vertically drawing glass from a molten metal bath
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3317301 |
Method of and apparatus for the manufacture of flat glass on a molten metal bath
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3231351 |
Method of and apparatus for the thermal conditioning of molten glass before its shaping
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3223503 |
Manufacture of flat glass
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3843345 |
Title is not available
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3817735 |
Title is not available
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3737295 |
Title is not available
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