GB563800A - Improved manufacture of toughened glass lenses and like glass objects - Google Patents

Improved manufacture of toughened glass lenses and like glass objects

Info

Publication number
GB563800A
GB563800A GB709543A GB709543A GB563800A GB 563800 A GB563800 A GB 563800A GB 709543 A GB709543 A GB 709543A GB 709543 A GB709543 A GB 709543A GB 563800 A GB563800 A GB 563800A
Authority
GB
United Kingdom
Prior art keywords
glass
points
lens
rods
toughening
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
GB709543A
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.)
ARTHUR WILLIAM PARFITT
Original Assignee
ARTHUR WILLIAM PARFITT
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 ARTHUR WILLIAM PARFITT filed Critical ARTHUR WILLIAM PARFITT
Priority to GB709543A priority Critical patent/GB563800A/en
Publication of GB563800A publication Critical patent/GB563800A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/04—Tempering or quenching glass products using gas
    • C03B27/06—Tempering or quenching glass products using gas for glass products other than flat or bent glass plates, e.g. hollow glassware, lenses
    • C03B27/065—Stresses, e.g. patterns, values or formulae
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/004—Tempering or quenching glass products by bringing the hot glass product in contact with a solid cooling surface, e.g. sand grains
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/04—Tempering or quenching glass products using gas
    • C03B27/06—Tempering or quenching glass products using gas for glass products other than flat or bent glass plates, e.g. hollow glassware, lenses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

563,800. Toughening glass. PARFITT, A. W. (Temp-R-Lens Corporation). May 5, 1943, No. 7095. [Class 56] A method of toughening a lens, watch glass, or like article consists in heating the article almost to the softening temperature of the glass, and then chilling it by means of a solid conductor, or a jet of gas, applied at the centre point of a desired strain pattern in the glass. The chilling apparatus comprises an upright member 22, Fig. 4, provided with a pivoted arm 25 which carries at its outer end a carbon rod 27 having a rounded point 28 at its lower end. A second carbon rod 29 having a rounded point 30 is mounted below and in line with the rod 27, and the two parts are drawn together by a spring 33. In use, the heated lens 31 is supported in a horizontal position between the points 28 and 30, either by the pressure of the points or by a suitable carrier. The points' rapidly conduct heat away from the glass to form a strain pattern, shown in Fig. 2, which can be seen by examination with a polariscope. The carbon rods can be replaced by metal rods, but in this case small pads of asbestos are placed between the points -and the glass to 'prevent the glass from cracking. The pads can be dispensed with if the points are spaced a little distance from the glass. In another construction, the rods are replaced by metal tubes from which a fine jet of gas is directed against each surface of the glass.
GB709543A 1943-05-05 1943-05-05 Improved manufacture of toughened glass lenses and like glass objects Expired GB563800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB709543A GB563800A (en) 1943-05-05 1943-05-05 Improved manufacture of toughened glass lenses and like glass objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB709543A GB563800A (en) 1943-05-05 1943-05-05 Improved manufacture of toughened glass lenses and like glass objects

Publications (1)

Publication Number Publication Date
GB563800A true GB563800A (en) 1944-08-30

Family

ID=9826520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB709543A Expired GB563800A (en) 1943-05-05 1943-05-05 Improved manufacture of toughened glass lenses and like glass objects

Country Status (1)

Country Link
GB (1) GB563800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004043869A1 (en) * 2002-11-12 2004-05-27 Boropal Technology Trading Gmbh Installation and method for the production of glass stoppers used for sealing bottles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004043869A1 (en) * 2002-11-12 2004-05-27 Boropal Technology Trading Gmbh Installation and method for the production of glass stoppers used for sealing bottles
HRP20050397B1 (en) * 2002-11-12 2008-12-31 Boropal Technology Trading Gmbh Installation and method for the production of glass stoppers used for sealing bottles
US8015844B2 (en) 2002-11-12 2011-09-13 Boropal Technology Trading Gmbh Installation and method for the production of glass stoppers used for sealing bottles

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