GB428678A - Improvements in luminous electric discharge tubes - Google Patents

Improvements in luminous electric discharge tubes

Info

Publication number
GB428678A
GB428678A GB2787/35A GB278735A GB428678A GB 428678 A GB428678 A GB 428678A GB 2787/35 A GB2787/35 A GB 2787/35A GB 278735 A GB278735 A GB 278735A GB 428678 A GB428678 A GB 428678A
Authority
GB
United Kingdom
Prior art keywords
envelope
anode
metal
electric discharge
luminous electric
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
GB2787/35A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB428678A publication Critical patent/GB428678A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

428,678. Metallic - vapour lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Jan. 28, 1935, No. 2787. Convention date, April 24,1934. [Class 39 (i)] A luminous electric discharge tube has a thermionic cathode, a rare gas filling and a box-like anode 3 pierced by one or more holes or slits 11 and containing a glass envelope 6 filled with a vaporisable metal, such as sodium, the said envelope 6 having a narrow outlet from which a capillary tube 9 extends into the interior of the envelope. The heating of the anode by the discharge produces a very uniform flow of metal vapour from the envelope 6, which replaces the metal lost by electrophoresis &c. The envelope 6 may be loose in the anode or fibrous packing material 12 may be provided.
GB2787/35A 1934-04-24 1935-01-28 Improvements in luminous electric discharge tubes Expired GB428678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE428678X 1934-04-24

Publications (1)

Publication Number Publication Date
GB428678A true GB428678A (en) 1935-05-16

Family

ID=6477503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2787/35A Expired GB428678A (en) 1934-04-24 1935-01-28 Improvements in luminous electric discharge tubes

Country Status (2)

Country Link
US (1) US2020725A (en)
GB (1) GB428678A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688098A (en) * 1951-08-17 1954-08-31 Augusto A Monasterio Emanator for radioactive gas
DE1056742B (en) * 1956-01-13 1959-05-06 British Thomson Houston Co Ltd Electric sodium vapor discharge lamp

Also Published As

Publication number Publication date
US2020725A (en) 1935-11-12

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