GB445648A - Improvements in electric discharge devices - Google Patents

Improvements in electric discharge devices

Info

Publication number
GB445648A
GB445648A GB1158735A GB1158735A GB445648A GB 445648 A GB445648 A GB 445648A GB 1158735 A GB1158735 A GB 1158735A GB 1158735 A GB1158735 A GB 1158735A GB 445648 A GB445648 A GB 445648A
Authority
GB
United Kingdom
Prior art keywords
inner tube
outer envelope
sealing
cap
tube
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
GB1158735A
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 DEP71053D priority Critical patent/DE634826C/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to GB1158735A priority patent/GB445648A/en
Priority to FR801792D priority patent/FR801792A/en
Publication of GB445648A publication Critical patent/GB445648A/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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps

Landscapes

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

Abstract

445,648. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent-Treuhand-Ges. f³r elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) April 15, 1935, No. 11587. [Class 39 (i)] A device, more particularly a high-pressure metalvapour device having an outer envelope surrounding wholly or partially an inner tube, is assembled by sealing a sealing piece into the inner tube some distance from the end and then sealing this end of the inner tube to the open end of the outer envelope. In one form a sealing piece 3 carrying electrodes 7 by means of an external pinch 4 and a spring - supported sheathed wire 5 closes the inner tube 1, and after evacuating the inner tube the free end of this tube is sealed to the outer envelope 2 at 14. The cap 16 is secured to the outer envelope by a clamp 19 and an asbestos layer 18. In a modification the lead to the lower electrode 7 is taken through the adjacent end of the inner tube and out to the cap through the seal 14. The device may be provided with auxiliary electrodes and with an incandescent filamentary ballast resistance in the space 15 which may be filled with neutral gas.
GB1158735A 1935-04-15 1935-04-15 Improvements in electric discharge devices Expired GB445648A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEP71053D DE634826C (en) 1935-04-15 1935-04-05 Process for the production of double-walled, single-capped discharge lamps
GB1158735A GB445648A (en) 1935-04-15 1935-04-15 Improvements in electric discharge devices
FR801792D FR801792A (en) 1935-04-15 1936-02-10 Manufacturing process for double-wall, single-base discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1158735A GB445648A (en) 1935-04-15 1935-04-15 Improvements in electric discharge devices

Publications (1)

Publication Number Publication Date
GB445648A true GB445648A (en) 1936-04-16

Family

ID=9988968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1158735A Expired GB445648A (en) 1935-04-15 1935-04-15 Improvements in electric discharge devices

Country Status (3)

Country Link
DE (1) DE634826C (en)
FR (1) FR801792A (en)
GB (1) GB445648A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694774A (en) * 1950-04-19 1954-11-16 Hanovia Chemical & Mfg Co End fitting for vapor arc lamps

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL255044A (en) * 1959-08-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694774A (en) * 1950-04-19 1954-11-16 Hanovia Chemical & Mfg Co End fitting for vapor arc lamps

Also Published As

Publication number Publication date
FR801792A (en) 1936-08-17
DE634826C (en) 1936-09-07

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