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GB572813A - Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship - Google Patents

Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship

Info

Publication number
GB572813A
GB572813A GB682743A GB682743A GB572813A GB 572813 A GB572813 A GB 572813A GB 682743 A GB682743 A GB 682743A GB 682743 A GB682743 A GB 682743A GB 572813 A GB572813 A GB 572813A
Authority
GB
United Kingdom
Prior art keywords
envelope
protuberances
mandrel
members
discharge tube
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
GB682743A
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.)
MORRIS ERNEST SIONS
Ferranti International PLC
Original Assignee
MORRIS ERNEST SIONS
Ferranti PLC
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 MORRIS ERNEST SIONS, Ferranti PLC filed Critical MORRIS ERNEST SIONS
Priority to GB682743A priority Critical patent/GB572813A/en
Publication of GB572813A publication Critical patent/GB572813A/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements

Landscapes

  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

572,813. Discharge apparatus. FERRANTI, Ltd. JACKSON, S., CHILCOT, A. L., SIONS, M. E., and SUTTON, R. W. May 29, 1943, No. 8627. [Class 39 (i)] An electric discharge tube has means for mounting members within and without its envelope in desired mutual spatial relationship which comprise internal and external protuberances l and m formed at pre-selected points of the envelope a, the apices of these protuberances lying on the surface on which the members are to be mounted. The envelope part a is mounted on a mandrel b which is of the same diameter as the inner member to be mounted. The glass of the envelope is softened at the pre-selected points by heat and then pushed in by a tool until it touches the mandrel and produces a protuberance of the desired height. The external protuberances may be produced by driving outwards softened areas of glass by high-pressure jets of air from orifices in the mandrel b. A suitably-shaped plate at the side of envelope a determines the height of the protuberances in a similar manner to the mandrel. In alternative oonstructions, the internal protuberances can be formed by reducing the pressure of air in the envelope and the external protuberances may be formed by an expanding tool within the envelope. Specification 478,083 is referred to.
GB682743A 1943-05-29 1943-05-29 Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship Expired GB572813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB682743A GB572813A (en) 1943-05-29 1943-05-29 Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB682743A GB572813A (en) 1943-05-29 1943-05-29 Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship

Publications (1)

Publication Number Publication Date
GB572813A true GB572813A (en) 1945-10-24

Family

ID=9821474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB682743A Expired GB572813A (en) 1943-05-29 1943-05-29 Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship

Country Status (1)

Country Link
GB (1) GB572813A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2459190A1 (en) * 1974-01-24 1975-08-07 Videon Sa METHOD OF SUPPORTING A DEFLECTOR ON A CATHODE BEAM TUBE
FR2445016A1 (en) * 1978-12-22 1980-07-18 Jenaer Glaswerk Schott & Gen CONE FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING SAID CONE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2459190A1 (en) * 1974-01-24 1975-08-07 Videon Sa METHOD OF SUPPORTING A DEFLECTOR ON A CATHODE BEAM TUBE
FR2445016A1 (en) * 1978-12-22 1980-07-18 Jenaer Glaswerk Schott & Gen CONE FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING SAID CONE

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