GB568122A - Improvements in the manufacture of electrical insulators for thermionic valves and the like - Google Patents

Improvements in the manufacture of electrical insulators for thermionic valves and the like

Info

Publication number
GB568122A
GB568122A GB1816240A GB1816240A GB568122A GB 568122 A GB568122 A GB 568122A GB 1816240 A GB1816240 A GB 1816240A GB 1816240 A GB1816240 A GB 1816240A GB 568122 A GB568122 A GB 568122A
Authority
GB
United Kingdom
Prior art keywords
manufacture
electrical insulators
thermionic valves
core
steatite
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
GB1816240A
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.)
MO Valve Co Ltd
Original Assignee
MO 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB1816240A priority Critical patent/GB568122A/en
Publication of GB568122A publication Critical patent/GB568122A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H01J19/44—Insulation between electrodes or supports within the vacuum space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems

Landscapes

  • Insulating Bodies (AREA)

Abstract

The invention is a modification of that described in Specification 471,207, which describes moulding steatite around a cardboard core and then sintering the steatite, the core being thus destroyed by heat. In the present invention, the core is of material, e.g. cellulose acetate or cellulose nitrate, which leaves no ash.
GB1816240A 1940-12-27 1940-12-27 Improvements in the manufacture of electrical insulators for thermionic valves and the like Expired GB568122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1816240A GB568122A (en) 1940-12-27 1940-12-27 Improvements in the manufacture of electrical insulators for thermionic valves and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1816240A GB568122A (en) 1940-12-27 1940-12-27 Improvements in the manufacture of electrical insulators for thermionic valves and the like

Publications (1)

Publication Number Publication Date
GB568122A true GB568122A (en) 1945-03-20

Family

ID=10107704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1816240A Expired GB568122A (en) 1940-12-27 1940-12-27 Improvements in the manufacture of electrical insulators for thermionic valves and the like

Country Status (1)

Country Link
GB (1) GB568122A (en)

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