GB656682A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB656682A
GB656682A GB1829948A GB1829948A GB656682A GB 656682 A GB656682 A GB 656682A GB 1829948 A GB1829948 A GB 1829948A GB 1829948 A GB1829948 A GB 1829948A GB 656682 A GB656682 A GB 656682A
Authority
GB
United Kingdom
Prior art keywords
rectangular
plate
parts
cathode
ray tubes
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
GB1829948A
Inventor
Hans Pius Barasch
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve 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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB1829948A priority Critical patent/GB656682A/en
Publication of GB656682A publication Critical patent/GB656682A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/861—Vessels or containers characterised by the form or the structure thereof

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

656,682. Cathode-ray tubes. ENGLISH ELECTRIC VALVE CO., Ltd. July 7, 1948, No. 18299. [Class 39 (i)] The envelope of a cathode-ray tube comprises a rectangular face-plate F and a circular neck N, connected by a portion which is partly conical at the neck end C and partly rectangular in cross-section at the end B which joins the face-plate, the two parts merging into each other on hyperbolic curves J. In the preferred form, mild steel parts B, C are welded together along the curves J, or along longitudinal edges when the connecting portion consists of two like halves; alternatively, the portion comprising integral parts B, C may be produced by hydraulic pressing. The rectangular part may have convex sides. Steel sealing ribbons, secured in a step or groove in the glass plate F and in the part B respectively, are brazed together by silver copper alloy. Dimensions are specified.
GB1829948A 1948-07-07 1948-07-07 Improvements in or relating to cathode ray tubes Expired GB656682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1829948A GB656682A (en) 1948-07-07 1948-07-07 Improvements in or relating to cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1829948A GB656682A (en) 1948-07-07 1948-07-07 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB656682A true GB656682A (en) 1951-08-29

Family

ID=10110099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1829948A Expired GB656682A (en) 1948-07-07 1948-07-07 Improvements in or relating to cathode ray tubes

Country Status (1)

Country Link
GB (1) GB656682A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731129A (en) * 1969-11-04 1973-05-01 Tokyo Shibaura Electric Co Rectangular color tube with funnel section changing from rectangular to circular
GB2351601A (en) * 1999-06-29 2001-01-03 Asahi Glass Co Ltd Glass funnel for a cathode ray tube and a cathode ray tube

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731129A (en) * 1969-11-04 1973-05-01 Tokyo Shibaura Electric Co Rectangular color tube with funnel section changing from rectangular to circular
GB2351601A (en) * 1999-06-29 2001-01-03 Asahi Glass Co Ltd Glass funnel for a cathode ray tube and a cathode ray tube
US6577055B1 (en) 1999-06-29 2003-06-10 Asahi Glass Company, Limited Glass funnel having arch-like ridge portions and cathode ray tube using same
GB2351601B (en) * 1999-06-29 2004-02-11 Asahi Glass Co Ltd Glass funnel for a cathode ray tube and a cathode ray tube
US6812632B2 (en) 1999-06-29 2004-11-02 Asahi Glass Company, Limited Glass funnel for a cathode ray tube and a cathode ray tube

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