GB572020A - Improvements in glazed windows for observation and other purposes - Google Patents

Improvements in glazed windows for observation and other purposes

Info

Publication number
GB572020A
GB572020A GB1706643A GB1706643A GB572020A GB 572020 A GB572020 A GB 572020A GB 1706643 A GB1706643 A GB 1706643A GB 1706643 A GB1706643 A GB 1706643A GB 572020 A GB572020 A GB 572020A
Authority
GB
United Kingdom
Prior art keywords
glass
per cent
na2o
sio2
metal
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
GB1706643A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1706643A priority Critical patent/GB572020A/en
Publication of GB572020A publication Critical patent/GB572020A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

572,020. Uniting metal to glass by heat. BRITISH THOMSON-HOUSTON CO., Ltd., and SCOTT. W. J., Oct. 18. 1943, No. 17066. [Class 36] [Also in Groups X and XXIII] A window for an inspection aperture consists of a metal member 4 in which is hermetically secured by fusion a sheet of glass 2 the thermal co-efficients of expansion of the glass and metal being approximately the same from normal to fusion temperatures. The member 4 may be recessed or tapered for reception of the glass and is secured to the body of a tank &c. by screwing or welding. The glass may be given a lens or other shape by pressing 'with a die: and may be polished or ground after mounting. Fig. 8 shows a resilient frame of channel section having an attachment flange 10. The member 4 may be electroplated with cobalt or copper &c. or enamelled and if copper coated may be borated to assist adhesion of the glass. A suitable glass for use with iron or steel comprises SiO2,48; ZnO11; BaO,19; CaF2,5; Na2O+K2O+LiO,17 per cent.; for use with an alloy of 54 per cent. Fe 28per cent., Ni 18 per cent. Co or with the alloy described in Specifications 358,934 or 449,807 [both in Group XXIII], the glass may comprise SiO2, 64.1 or 68.5! B2O3, 25.3 or 30; Al2O3, 1.8 or 0.0; Na2O+K2O+LiO, 8.5 or 1.5 per cent. The Provisional Specification also refers to a glass comprising SiO2,45; BaO,15; ZnQ,15 CaF2,5; K2O,14; Na2O, 6 per cent. Specification 462,600, [Group XL], also is referred to.
GB1706643A 1943-10-18 1943-10-18 Improvements in glazed windows for observation and other purposes Expired GB572020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1706643A GB572020A (en) 1943-10-18 1943-10-18 Improvements in glazed windows for observation and other purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1706643A GB572020A (en) 1943-10-18 1943-10-18 Improvements in glazed windows for observation and other purposes

Publications (1)

Publication Number Publication Date
GB572020A true GB572020A (en) 1945-09-19

Family

ID=10088647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1706643A Expired GB572020A (en) 1943-10-18 1943-10-18 Improvements in glazed windows for observation and other purposes

Country Status (1)

Country Link
GB (1) GB572020A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241369A (en) * 1962-03-09 1966-03-22 Fusite Corp Sight glass and method of making same
FR2271634A1 (en) * 1974-05-15 1975-12-12 Isotronics Inc
US3977251A (en) * 1973-11-02 1976-08-31 Meginnis Charles E Sight glass assembly
US5176029A (en) * 1992-05-08 1993-01-05 Maritrans Operating Partners L.P. Ullage tube viewing device
US5974877A (en) * 1996-05-01 1999-11-02 Food Engineering Corporation Sight window assembly and method of forming same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241369A (en) * 1962-03-09 1966-03-22 Fusite Corp Sight glass and method of making same
US3977251A (en) * 1973-11-02 1976-08-31 Meginnis Charles E Sight glass assembly
FR2271634A1 (en) * 1974-05-15 1975-12-12 Isotronics Inc
US5176029A (en) * 1992-05-08 1993-01-05 Maritrans Operating Partners L.P. Ullage tube viewing device
US5974877A (en) * 1996-05-01 1999-11-02 Food Engineering Corporation Sight window assembly and method of forming same

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