GB656424A - Improvements in or relating to cathode ray tubes or the like - Google Patents

Improvements in or relating to cathode ray tubes or the like

Info

Publication number
GB656424A
GB656424A GB37549A GB37549A GB656424A GB 656424 A GB656424 A GB 656424A GB 37549 A GB37549 A GB 37549A GB 37549 A GB37549 A GB 37549A GB 656424 A GB656424 A GB 656424A
Authority
GB
United Kingdom
Prior art keywords
evaporator
anode
cathode
neck portion
electrode
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
GB37549A
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.)
OLIVER BARTLE
Cinema Television Ltd
Original Assignee
OLIVER BARTLE
Cinema Television 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
Priority to FR1007589D priority Critical patent/FR1007589A/en
Application filed by OLIVER BARTLE, Cinema Television Ltd filed Critical OLIVER BARTLE
Priority to GB37549A priority patent/GB656424A/en
Priority to DEC3120A priority patent/DE847041C/en
Publication of GB656424A publication Critical patent/GB656424A/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
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
    • 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

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

656,424. Cathode-ray tubes. CINEMATELEVISION, Ltd., and BARTLE, O. Jan. 6, 1949, No. 375. [Class 39 (i)] In the manufacture of a cathode-ray tube, the envelope is made in two parts 1, 2, the neck portion 1 containing a filamentary cathode 5, a modulating electrode 6 and an anode 4 supported by a conical glass flange 3. This electron gun structure is lined up while the glass of the pinch is soft by inserting a jig through the anode 4 from the flange side, the jig being shaped so that its end enters the aperture in the electrode 6 and in addition to aligning the elements of the gun provides a measure of the correct distance between the anode 4 and the electrode 6. To enable the usual conducting coating on the side wall of the tube to be continued so as to cover the area where the parts 1 and 2 are sealed together, an evaporator 8 is heated by induction or eddy current heating. The evaporator may comprise a ring of tungsten wire on which is coiled a length of thinner aluminium wire. In an alternative arrangement the neck portion 1 may include the portion of the bulb where the flare commences and in this case the evaporator may be positioned within the bulb of the tube instead of in the cylindrical neck portion as shown.
GB37549A 1949-01-06 1949-01-06 Improvements in or relating to cathode ray tubes or the like Expired GB656424A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1007589D FR1007589A (en) 1949-01-06 1949-01-04 Improvements to cathode ray oscillographs and similar systems
GB37549A GB656424A (en) 1949-01-06 1949-01-06 Improvements in or relating to cathode ray tubes or the like
DEC3120A DE847041C (en) 1949-01-06 1950-10-03 Cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37549A GB656424A (en) 1949-01-06 1949-01-06 Improvements in or relating to cathode ray tubes or the like

Publications (1)

Publication Number Publication Date
GB656424A true GB656424A (en) 1951-08-22

Family

ID=9703305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37549A Expired GB656424A (en) 1949-01-06 1949-01-06 Improvements in or relating to cathode ray tubes or the like

Country Status (3)

Country Link
DE (1) DE847041C (en)
FR (1) FR1007589A (en)
GB (1) GB656424A (en)

Also Published As

Publication number Publication date
FR1007589A (en) 1952-05-07
DE847041C (en) 1952-08-21

Similar Documents

Publication Publication Date Title
GB730548A (en) Tuning indicator valve
GB638139A (en) Improvements in and relating to electron discharge devices
GB494644A (en) Cathode ray tubes
GB494791A (en) Improvements in or relating to electron discharge devices
US2842694A (en) X-ray apparatus
GB656424A (en) Improvements in or relating to cathode ray tubes or the like
GB1406523A (en) Cathode ray tube
GB455927A (en) Improvements in or relating to cathode ray tubes
GB550551A (en) Improvements in and relating to gettering arrangements for highly evacuated envelopes of electron discharge tubes
US2176199A (en) Electron-discharge tube
GB730204A (en) Improvements relating to cathode ray tubes
GB520623A (en) Improvements in electric discharge tubes for the optical indication of voltages
GB500017A (en) Improvements in cathode ray tubes
GB636125A (en) Improvements in or relating to discharge tubes for use in tuning-indicators
US2128597A (en) Braun tube
GB656459A (en) Improvements in or relating to electrode assemblies for electron discharge devices
GB741189A (en) Improvements in and relating to electron flow devices
GB580860A (en) Improvements in or relating to cathode ray tubes
GB1185249A (en) Improvements in or relating to Electron Collector Electrodes for Velocity-Modulated Tubes
GB230497A (en) Improvements in or relating to x-ray tubes
GB725693A (en) Improvements in or relating to means for centring electron guns
GB438343A (en) Improvements relating to indirectly heated cathodes for cathode ray tubes
GB395660A (en) Improvements in and relating to electric discharge devices
GB522533A (en) Improvements in or relating to cathode ray tubes
GB659797A (en) Improvements in thermionic electron discharge devices