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| Number | Title | Issue Date |
| 4406105 | Structural glass assemblies A structural glass assembly in which one or more glass plates are secured by an attachment device to an adjacent element, the attachment device comprising a plate member partially overlying an edge region of the glass plate on one side only thereof and ex... | 09/27/1983 |
| 4372774 | Thermal treatment of glass The thermal treatment of glass is effected by contacting the glass, when it is hot, with a gas-fluidized mixture of particulate materials, at least one of which is selected to have gas-generating properties when heated by the hot glass. The materials are ... | 02/08/1983 |
| 4349634 | Method of preparing photochromic glass A process for producing a photochromic glass which will exhibit a brown coloration in its darkened state without a degradation in the photochromic properties of the glass taking place. The process includes the steps of forming a batch of specified compone... | 09/14/1982 |
| 4345037 | Alkali resistant glass fibres for cement reinforcement Alkali-resistant glass fibres for use as reinforcement in cementitious products are formed from a composition comprising, in weight percentages: where R2 O is any one or more of Na2 O, K2 O or Li2 O, the content of T... | 08/17/1982 |
| 4343116 | Processes for finishing glass surfaces A method of finishing a glass surface to a close tolerance and a substantially blemish-free state using a moving polishing lap and an aqueous treatment liquid containing inert abrasive particles, in which the treatment liquid also contains a bifluoride wh... | 08/10/1982 |
| 4316565 | Sheet transfer apparatus Apparatus for marshalling glass sheets comprises a conveyor capable of conveying an array of sheets lying in a transverse sheet array across the conveyor to a sheet removal station, transverse conveying means extending transversely above the conveyor and ... | 02/23/1982 |
| 4299018 | Roll for use under high or low temperature conditions A roll for use under high or low temperature conditions, for example a conveyor roll in a flat glass annealing lehr, comprises a tire of a different material from collars on the roll between which the tire is held. The tire and at least one collar have ma... | 11/10/1981 |
| 4290813 | Photochromic boro-silicate glass Fast-response photochromic boro-silicate glasses which have a half-fading time of not more than 145 secs, have silver halide crystals dispersed throughout the glass and are free from barium, comprise, in weight percentages: SiO2 --31 to 59% B | 09/22/1981 |
| 4238216 | Heating glass batch material A heating chamber for pellets of glass batch material has a pellet inlet in one wall of the chamber and a pellet outlet at a lower part of the chamber so that a bed of pellets is formed with an upper surface inclined at an angle of repose of the pellets. ... | 12/09/1980 |
| 4221579 | Thermal treatment of glass sheets A glass sheet is thermally treated, for example thermally toughened, by heating the glass sheet, and lowering the sheet into a gas-fluidized bed of particulate material which is at a glass-treatment temperature, for example quenching temperature. Extracti... | 09/09/1980 |
| 4220066 | Apparatus for cutting or scoring sheet material Glass scoring apparatus comprises a cutting tool, means for applying a cutting load to the cutting tool when the tool engages a glass surface to be scored, and a damping member arranged to absorb energy developed by reaction forces opposing the cutting lo... | 09/02/1980 |
| 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 attenuation of the float ribbon to a desired width and th... | 08/12/1980 |
| 4214863 | Rotary pan pelletizers In a rotary pan pelletizer, a central circular portion of the bottom surface of the pan is raised above the level of the annular portion around this central portion, and a stationary central plough is disposed with its lower surface in close proximity to ... | 07/29/1980 |
| 4205976 | Thermal toughening of glass A glass sheet is thermally toughened by heating the sheet to a temperature near to its softening point and then lowering the sheet into a gas-fluidized bed of particulate material. A void region is established beneath the lower edge of the sheet as it is ... | 06/03/1980 |
| 4204852 | Method of and apparatus for producing a glass fibre bundle for use in optical communications systems To reduce breakage of fibres in optical glass fibre bundles during manufacture caused by formation of loops in the fibre during sheathing, a twist is imparted to the fibre bundle during its formation. The apparatus of the invention includes a furnace, a r... | 05/27/1980 |
| 4200448 | Glass manufacture In a glass melting tank, a plurality of stirrers are spaced apart across the tank and arranged to extract heat from the forward flowing glass so as to achieve a differential extraction of heat from the glass which flows along a return path towards the inl... | 04/29/1980 |
| 4198226 | Method and apparatus for controlling a fluidized bed A gas-fluidized bed of particulate material is operated by extracting gas from a localized region of the bed to produce an unfluidized static condition of the material in that region. The region may be in the upper part of the fluidized bed, or may be a r... | 04/15/1980 |
| 4194898 | Method and apparatus for treatment of articles in a fluidized bed An article, for example a glass sheet, is treated in a gas-fluidized particulate material by advancing the article along a path leading into the gas-fluidized particulate material and extracting gas from a region of the path at a rate sufficient to pack t... | 03/25/1980 |
| 4188444 | Method of coating glass and glass coated thereby Glass is coated with an alkali-resistant silicon coating by moving the glass past a coating station while the glass is at least at 400° C. Silane-containing gas is released close to the glass surface, which gas includes a proportion of a gaseous electron... | 02/12/1980 |
| 4173486 | Coating of glass fibres A method of coating glass fibres to protect them from deterioration in an alkaline environment such as a Portland cement matrix, in which the glass fibres are coated with a composition containing a water-soluble film-forming material having free aliphatic... | 11/06/1979 |
| 4144684 | Glazing unit A glazing unit comprising a sheet of glass having a coating consisting essentially of silicon on a major face thereof, and a frame for that sheet.... | 03/20/1979 |
| 4140258 | Methods and apparatus for separating glass sheets into separate sheet portions For separating glass sheets, especially sheets of wired glass, into separate sheet portions and stacking the sheet portions in spaced stacks, the sheets are cut to define the sheet portions, which are gripped by respective relatively movable groups of suc... | 02/20/1979 |
| 4131446 | Method and apparatus for manufacturing flat glass on molten metal In flat glass manufacture on a molten metal bath, there is forward flow of molten metal entrained by accelerating glass over an upstream return flow of cooler molten metal which is received in a deepened region of the bath. Upstream molten metal flows are... | 12/26/1978 |
| 4131222 | Snapping of sheets of glass Glass snapping apparatus comprises a plurality of conveyors diverging away from each other in the direction of advance, lifting means for raising the trailing edge of the sheet above the leading edge and for imposing on the trailing edge a bending moment ... | 12/26/1978 |
| 4124733 | Laminated glass units A laminated glass windscreen comprises two sheets of glass laminated together with a layer of transparent plastics material. The inner sheet of the windscreen is of thickness in the range 0.5 mm to 3 mm and is toughened to a degree such that the central t... | 11/07/1978 |
| 4120680 | Method of heat treating glass in a fluidized bed and apparatus therefore A fluidized bed for the thermal treatment of glass articles is maintained in a quiescent uniformly expanded state of particulate fluidization by establishing a high pressure drop across a porous membrane through which fluidizing gas is supplied to the bed... | 10/17/1978 |
| 4120681 | Method of thermal treatment of glass in a fluidized bed Glass is thermally treated by contacting the glass with a gas-fluidized particulate material of non-compacted particle structure which is such that the apparent density of the particles is less than the actual density of the material forming the particles... | 10/17/1978 |
| 4113458 | Thermal treatment of glass in a fluidized bed The thermal treatment of glass is effected by heat transfer between the glass and a gas-fluidized particulate material which is in a quiescent uniformly expanded state of particulate fluidization. Glass sheets are thermally toughened by immersing each gla... | 09/12/1978 |
| 4111675 | Thermal treatment of glass in a fluidized bed Glass articles are thermally treated in a gas-fluidized bed of particulate material which is maintained in a quiescent uniformly expanded state of particulate fluidization. Heat exchange within the bed with the material of the bed regulates the bed temper... | 09/05/1978 |
| 4109051 | Polyhydroxy aromatic coating compositions for reinforcing glass fibers used in cementitious products A composition for coating glass fibers intended for use as reinforcement in cementitious products, containing, as a protective material, at least one monocyclic or polycyclic aromatic compound which has at least three hydroxyl groups on the aromatic ring ... | 08/22/1978 |
| 4093471 | Glass fiber reinforced cement composite materials Glass fiber reinforced cement composite materials are made by first preparing a cement slurry from a cement/water mix by a high shear mixing process which breaks up cement agglomerates into their primary particles, and then mixing chopped strands of glass... | 06/06/1978 |
| 4092174 | Photochromic glasses Fast-response alumino-phosphate photochromic glasses having silver halide crystals dispersed throughout the glass consisting essentially of, in weight percentages: SiO2 : 8.5 to 25%, Al2 O3 : 13 to 36.5%, P2 O5 | 05/30/1978 |
| 4088471 | Apparatus for coating glass An apparatus for coating glass with a coating consisting of or containing silicon includes a gas distributor for locating transversely of the path of travel of a glass surface. A gas supply duct supplies coating material in gaseous form and the temperatur... | 05/09/1978 |
| 4086073 | Electrolytic ion migration into glass A glass surface is modified by maintaining a molten alloy body in contact with the surface, which molten body clings to a locating face which comprises at least two metals which migrate into the glass from the molten alloy body, and which dissolve from th... | 04/25/1978 |
| 4082528 | Glass melting tank with temperature control and method of melting In the refining zone of a glass melting tank the molten glass is supported on a heat conducting base, such as molten tin, heat is removed from the glass through the base and the depth of glass, length of refining zone and temperature difference between th... | 04/04/1978 |
| 4076512 | Controlled method for the production of clad glass rod A method of producing clad glass rod of uniform diameter from which an optical fibre is drawn. The rate of drawing of the rod from a glass melt and the diameter of the drawn rod are sensed and the sensed values are fed to a coarse open loop control and a ... | 02/28/1978 |
| 4076159 | Breaking flat glass into cullet Flat glass advancing along a conveyor in the form of a continuous ribbon or individual sheets, is broken into cullet by applying breaking loads to the glass which put breaking stresses into the glass simultaneously about two axes which are substantially o... | 02/28/1978 |
| 4070936 | Apparatus for cutting or scoring sheet material Apparatus for cutting or scoring sheet material, e.g. glass, with rapid responses to irregularities in the surface of the sheet material and to commands to commence or interrupt a cutting or scoring operation, employs a fluid pressure actuated diaphragm d... | 01/31/1978 |
| 4062690 | Coating compositions for glass fibres A coating composition for glass fibres intended for use as reinforcement in cementitious products is disclosed, which contains at least one monocyclic or polycyclic aromatic compound having at least three hydroxyl groups on the aromatic ring or (in a poly... | 12/13/1977 |
| 4052186 | Method and apparatus for conditioning molten glass Molten glass is conditioned to achieve a desired thermal distribution suitable for feeding the glass to a forming process. The molten glass is fed to the inlet end of a conditioning zone of a tank and glass flow through the conditioning zone is establishe... | 10/04/1977 |
