GB435778A - Improvements in electric discharge devices - Google Patents

Improvements in electric discharge devices

Info

Publication number
GB435778A
GB435778A GB2219334A GB2219334A GB435778A GB 435778 A GB435778 A GB 435778A GB 2219334 A GB2219334 A GB 2219334A GB 2219334 A GB2219334 A GB 2219334A GB 435778 A GB435778 A GB 435778A
Authority
GB
United Kingdom
Prior art keywords
bodies
electrodes
central parts
envelope
supported
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
GB2219334A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 DEP69733D priority Critical patent/DE624290C/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to GB2219334A priority patent/GB435778A/en
Priority to US27233A priority patent/US2056634A/en
Publication of GB435778A publication Critical patent/GB435778A/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/045—Thermic screens or reflectors

Landscapes

  • Discharge Lamp (AREA)

Abstract

435,778. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent Treuhand- Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) July 30, 1934, No. 22193. [Class 39 (i)] To avoid condensation of vapour on the cooler central parts of the envelope of a vapour discharge device such as a sodium lamp, one or more bodies 8 of high thermal conductivitv each extend from the neighbourhood of an electrode 3 towards the central parts to convey heat to the central parts, the bodies being so arranged that the discharge passes between the bodies and the envelope 1 at least at the parts remote from the electrodes 3. The bodies comprise plates of iron, nickel or copper, corrugated or of cruciform cross-section and joined to cylinders 6 which surround the electrodes 3 and are supported from pinches 5. The bodies are connected together by glass rods 9 and may serve as auxiliary starting electrodes. In a modification, the bodies 8 are supported by spring arms from the walls 1. Specifications 369,882 and 393,515 are referred to.
GB2219334A 1934-07-21 1934-07-30 Improvements in electric discharge devices Expired GB435778A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEP69733D DE624290C (en) 1934-07-21 1934-07-21 Electric low-pressure metal halide tubes
GB2219334A GB435778A (en) 1934-07-30 1934-07-30 Improvements in electric discharge devices
US27233A US2056634A (en) 1934-07-21 1935-06-18 Gaseous electric discharce tubular lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2219334A GB435778A (en) 1934-07-30 1934-07-30 Improvements in electric discharge devices

Publications (1)

Publication Number Publication Date
GB435778A true GB435778A (en) 1935-09-27

Family

ID=10175460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2219334A Expired GB435778A (en) 1934-07-21 1934-07-30 Improvements in electric discharge devices

Country Status (1)

Country Link
GB (1) GB435778A (en)

Similar Documents

Publication Publication Date Title
GB428925A (en) Improvements in electric discharge tubes
GB510828A (en) Improvements in electric discharge devices
GB458252A (en) Improvements in or relating to artificially cooled high pressure mercury vapour discharge tube
GB428996A (en) Improvements in luminous electric discharge tubes
GB435778A (en) Improvements in electric discharge devices
GB562178A (en) Improvements in and relating to electric discharge devices
GB361804A (en) Improvements in electric luminous discharge tubes
GB426612A (en) Improvements in or relating to thermionic valves
GB435881A (en) Improved electrostatic condensers
GB393849A (en) Improvements in luminous electric discharge tubes
GB472918A (en) Improvements in or relating to electric discharge devices
GB518204A (en) Improvements in electric discharge lamps
GB352353A (en) Improvements in luminous electric discharge tubes
GB434561A (en) Improvements in electric discharge devices
GB432950A (en) Improvements in electric discharge devices
GB455591A (en) Improvements in and relating to electric discharge tubes
GB505172A (en) Improvements in and relating to electric discharge lamps
GB467025A (en) Improvements in or relating to electric discharge devices
GB487460A (en) Improvements in and relating to electric discharge devices
GB414611A (en) Improvements in luminous sources formed by electric discharge tubes
GB347127A (en)
GB433274A (en) Improvements in metal caps for electric incandescent lamps, electric discharge devices and the like
GB455125A (en) Improvements in or relating to electric discharge tubes, in conjunction with oscillating circuits
GB425928A (en) Improvements in electric discharge tubes
GB272892A (en) Improvements in electric discharge devices