GB487460A - Improvements in and relating to electric discharge devices - Google Patents

Improvements in and relating to electric discharge devices

Info

Publication number
GB487460A
GB487460A GB17482/37A GB1748237A GB487460A GB 487460 A GB487460 A GB 487460A GB 17482/37 A GB17482/37 A GB 17482/37A GB 1748237 A GB1748237 A GB 1748237A GB 487460 A GB487460 A GB 487460A
Authority
GB
United Kingdom
Prior art keywords
oxidized
envelope
june
discharge
relating
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
GB17482/37A
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
Publication of GB487460A publication Critical patent/GB487460A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • 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
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/08—Vessels; Containers; Shields associated therewith; 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/904—Radiation

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • 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)
  • Lasers (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

487,460. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. June 23, 1937, No. 17482. Convention date, June 23, 1936. [Class 39 (i)] A discharge device has a metal envelope, the internal surface of which, and especially the surface exposed to the discharge, is oxidized to increase the thermal absorption of the envelope. A mercury tube comprises an envelope 19, the ends of which are sealed by stepped headers 21 ; the internal surface above the line 37 is oxidized. A cooling jacket 18 is provided and glass insulators 23, 29 support the anode 22 and the semi-conducting starting electrode 27. In another form, the surface of the envelope of a thermionic valve may be oxidized ; it may consist of steel and is oxidized while filled with air and is subsequently exhausted.
GB17482/37A 1936-06-23 1937-06-23 Improvements in and relating to electric discharge devices Expired GB487460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86800A US2137841A (en) 1936-06-23 1936-06-23 Electric discharge device

Publications (1)

Publication Number Publication Date
GB487460A true GB487460A (en) 1938-06-21

Family

ID=22201015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17482/37A Expired GB487460A (en) 1936-06-23 1937-06-23 Improvements in and relating to electric discharge devices

Country Status (5)

Country Link
US (1) US2137841A (en)
BE (1) BE422235A (en)
DE (1) DE715438C (en)
FR (2) FR794258A (en)
GB (1) GB487460A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763641C (en) * 1938-06-16 1953-10-12 Aeg Electrical discharge vessel with metal wall and electrode system arranged parallel to the tube axis
US3254702A (en) * 1959-08-25 1966-06-07 Harry E Thomason Heat (or cold) storage apparatus

Also Published As

Publication number Publication date
US2137841A (en) 1938-11-22
BE422235A (en)
DE715438C (en) 1941-12-22
FR48549E (en) 1938-03-08
FR794258A (en) 1936-02-12

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