GB747738A - Improvements in or relating to method and apparatus for surfacing glass - Google Patents

Improvements in or relating to method and apparatus for surfacing glass

Info

Publication number
GB747738A
GB747738A GB18937/53A GB1893753A GB747738A GB 747738 A GB747738 A GB 747738A GB 18937/53 A GB18937/53 A GB 18937/53A GB 1893753 A GB1893753 A GB 1893753A GB 747738 A GB747738 A GB 747738A
Authority
GB
United Kingdom
Prior art keywords
glass
solution
precipitate
tools
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB18937/53A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Inc
Original Assignee
Pittsburgh Plate Glass Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pittsburgh Plate Glass Co filed Critical Pittsburgh Plate Glass Co
Publication of GB747738A publication Critical patent/GB747738A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22Applying luminescent coatings
    • H01J9/221Applying luminescent coatings in continuous layers
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00Surface treatment of glass, not in the form of fibres or filaments, by etching
    • C03C15/02Surface treatment of glass, not in the form of fibres or filaments, by etching for making a smooth surface

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

747,738. Surfacing glass. PITTSBURGH PLATE GLASS CO. July 8, 1953 [July 15, 1952; June 22, 1953], No. 18937/53. Classes 56 and 60 A method of surfacing glass includes dissolving a portion of the glass surface with an acid solution of a bifluoride to form a silicofluoride precipitate which masks the glass against further attack by the acid solution and continuously removing the precipitate in the presence of the solution from only the high portions of the glass. When the size and spacing of the particles of the precipitate permits the bifluoride to attack the'glass around the edges of the particles a frosted surface is produced, while when the particles are greater in number and smaller in size, an improved quality of surface is obtained. The particle size may be controlled by varying the degree of supersaturation of the acid solution and the solvent power of the solution for the precipitate. Solutions for the production of frosted surfaces may consist of ammonium bifluoride in water and/or phosphoric acid, the. proportion of phosphoric acid determining, together with the degree of supersaturation, the particle size. To produce non-frosted surfaces the solvent power of the solution for the precipitate is reduced by the addition of an organic radical, such as aliphatic or aromatic amines and hydrazines, or an inorganic cation, such as potassium. Alternatively, such cations, for example those of barium, lead, potassium and aluminium may be supplied by the glass. Liquids, such as acetic acid and higher molecular weight alcohols, and solids, such as sucrose, may also be employed to reduce particle size. Alcohol solutions, instead of aqueous solutions, may be used to dissolve the glass and these may also be modified by the addition of organic radicals which are not suitable for use with the aqueous solutions. To increase the power of the solution to dissolve the glass, organic and inorganic acids which are not a solvent for the precipitate may be added to the solution while various salts which will hydrolize and not form a fluorine complex of insoluble fluoride with that of the solution may also be employed. Figs. 6 and 7 show apparatus for producing a frosted surface on separate glass sheets 1 mounted in plastic beds or on a continuous sheet supported by rollers, the glass being traversed beneath tools 2 having serrated faces with portions 3b into which the solution is directed by members 4 which may be supplied either by separate pumps P or a common pump. The tools apply a pressure of about 2lbs./sq. in. to the glass and the spaces between them are flushed with water. Apparatus employing rotary felt-faced tools mounted on spiders or of a diameter large enough to extend across the glass and operating on one or both faces thereof is also described. The solution may be fed centrally to the tools which are separated by squeegee members to enable the glass to be washed as it passes between them or it may be fed to the glass by conduits arranged between the tools. To assist the action of the tools in removing the precipitate from the high portions of the glass, the solution may contain 10 per cent of abrasive, such as rouge, tin oxide, chromium oxide, barium sulphate or mixtures thereof.
GB18937/53A 1952-07-15 1953-07-08 Improvements in or relating to method and apparatus for surfacing glass Expired GB747738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US747738XA 1952-07-15 1952-07-15

Publications (1)

Publication Number Publication Date
GB747738A true GB747738A (en) 1956-04-11

Family

ID=22121607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18937/53A Expired GB747738A (en) 1952-07-15 1953-07-08 Improvements in or relating to method and apparatus for surfacing glass

Country Status (1)

Country Link
GB (1) GB747738A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462400A1 (en) * 1979-07-26 1981-02-13 Pilkington Brothers Ltd METHOD FOR FINISHING GLASS SURFACES
GB2188924A (en) * 1986-04-08 1987-10-14 Glaverbel Matted glass, process of producing matted glass, photo-voltaic cell incorporating a glass sheet, and process of manufacturing such a cell
GB2188925A (en) * 1986-04-08 1987-10-14 Glaverbel Matted glass and process of manufacturing same
WO2010098650A1 (en) * 2009-02-24 2010-09-02 Rendon Granados Juan Luis Glass with a total or partial satin-matte finish on one or both of the sides thereof, which has a completely homogeneous, uniform finish, a smooth feel and a pleasing appearance
CN113087405A (en) * 2021-04-07 2021-07-09 惠州市清洋实业有限公司 Tempered glass small-R-angle depth etching liquid and etching method thereof
CN114933419A (en) * 2022-04-29 2022-08-23 北京仿生界面科学未来技术研究院 Method for preparing ultrathin flexible glass by utilizing bionic weathering enzyme composite glass thinning agent

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462400A1 (en) * 1979-07-26 1981-02-13 Pilkington Brothers Ltd METHOD FOR FINISHING GLASS SURFACES
DE3028282A1 (en) * 1979-07-26 1981-03-26 Pilkington Brothers Ltd., St. Helens, Merseyside METHOD FOR FINISHING GLASS SURFACES
US4343116A (en) * 1979-07-26 1982-08-10 Pilkington Brothers Limited Processes for finishing glass surfaces
GB2188924A (en) * 1986-04-08 1987-10-14 Glaverbel Matted glass, process of producing matted glass, photo-voltaic cell incorporating a glass sheet, and process of manufacturing such a cell
GB2188925A (en) * 1986-04-08 1987-10-14 Glaverbel Matted glass and process of manufacturing same
US4880677A (en) * 1986-04-08 1989-11-14 Glaverbel Matted glass
US4882214A (en) * 1986-04-08 1989-11-21 Glaverbel Matted glass
GB2188925B (en) * 1986-04-08 1990-05-09 Glaverbel Matted glass and process of manufacturing same
GB2188924B (en) * 1986-04-08 1990-05-09 Glaverbel Matted glass, process of producing matted glass, photo-voltaic cell incorporating a glass sheet, and process of manufacturing such a cell
WO2010098650A1 (en) * 2009-02-24 2010-09-02 Rendon Granados Juan Luis Glass with a total or partial satin-matte finish on one or both of the sides thereof, which has a completely homogeneous, uniform finish, a smooth feel and a pleasing appearance
CN102405196A (en) * 2009-02-24 2012-04-04 朱安·卢斯·伦登·格拉纳多斯 Glass with a total or partial satin-matte finish on one or both of the sides thereof, which has a completely homogeneous, uniform finish, a smooth feel and a pleasing appearance
CN113087405A (en) * 2021-04-07 2021-07-09 惠州市清洋实业有限公司 Tempered glass small-R-angle depth etching liquid and etching method thereof
CN114933419A (en) * 2022-04-29 2022-08-23 北京仿生界面科学未来技术研究院 Method for preparing ultrathin flexible glass by utilizing bionic weathering enzyme composite glass thinning agent
CN114933419B (en) * 2022-04-29 2023-09-29 北京仿生界面科学未来技术研究院 Method for preparing ultrathin flexible glass by using bionic weathering enzyme composite glass thinning agent

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