GB1374488A - Electric discharge lamps - Google Patents

Electric discharge lamps

Info

Publication number
GB1374488A
GB1374488A GB1184872A GB1184872A GB1374488A GB 1374488 A GB1374488 A GB 1374488A GB 1184872 A GB1184872 A GB 1184872A GB 1184872 A GB1184872 A GB 1184872A GB 1374488 A GB1374488 A GB 1374488A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
discharge lamps
sealing
oxide
glass
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
GB1184872A
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
Priority to GB1184872A priority Critical patent/GB1374488A/en
Publication of GB1374488A publication Critical patent/GB1374488A/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
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

Abstract

1374488 Sealing-glass compositions GENERAL ELECTRIC CO Ltd 16 Feb 1973 [14 March 1972] 11848/72 Heading C1M [Also in Division H1] A glass for sealing a corundum to a polycrystalline alumina tube is composed of, in molar percentages: 33À1% alumina, 51À4% calcium oxide, 9À5% magnesium oxide, 4À2% barium oxide and 1À8% boric acid.
GB1184872A 1973-02-16 1973-02-16 Electric discharge lamps Expired GB1374488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1184872A GB1374488A (en) 1973-02-16 1973-02-16 Electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1184872A GB1374488A (en) 1973-02-16 1973-02-16 Electric discharge lamps

Publications (1)

Publication Number Publication Date
GB1374488A true GB1374488A (en) 1974-11-20

Family

ID=9993798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1184872A Expired GB1374488A (en) 1973-02-16 1973-02-16 Electric discharge lamps

Country Status (1)

Country Link
GB (1) GB1374488A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156147A (en) * 1984-02-29 1985-10-02 Iwasaki Electric Co Ltd Discharge lamp assembly and method of manufacture
EP0331154A1 (en) * 1988-03-03 1989-09-06 Feldmühle Aktiengesellschaft Tube provided with an enlarged portion for metal vapour discharge lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156147A (en) * 1984-02-29 1985-10-02 Iwasaki Electric Co Ltd Discharge lamp assembly and method of manufacture
EP0331154A1 (en) * 1988-03-03 1989-09-06 Feldmühle Aktiengesellschaft Tube provided with an enlarged portion for metal vapour discharge lamps
WO1989008321A1 (en) * 1988-03-03 1989-09-08 Feldmühle Aktiengesellschaft Bulbous tube burner for metal vapour discharge lamps

Similar Documents

Publication Publication Date Title
IE41507L (en) Magnesium aluminium spinel
CA990776A (en) High pressure discharge lamp
GB1202511A (en) Process for preparing zeolite l
MY8100082A (en) Improvements in or relating to low pressure gaseous discharge lamps
GB1436487A (en) Compositions for oral hygiene
AU8606875A (en) Suspending soluble alginates & compositions so produced
CA983565A (en) Discharge lamps
GB1374488A (en) Electric discharge lamps
ES434976A1 (en) Antibiotic pharmaceutical compositions
CA1035065A (en) Stable refractory slurry composition
AU502915B2 (en) Preparation of basic aluminium chlorosulphate solutions
CA1003188A (en) Calcination of strontium carbonate
AU461694B2 (en) Fluorescent lamp
AU7384674A (en) Envelope coding head
GB1410297A (en) High-pressure discharge lamp
GB966675A (en) Improvements in or relating to sodium-vapour discharge lamps
CA1010630A (en) Production of high purity alumina hydrate
ES8302459A1 (en) Injectable oxytetracycline compositions.
GB1405155A (en) 20 watt fluorescent lamp
CA990774A (en) Incandescent lamp of low power and operating at a very low voltage
FR2036842A1 (en) Aluminium oxide low in sodium oxide, prodn
GB1319566A (en) Glass
GB1361225A (en) Method of bonding alumina to a refractory metal or alloy
GB1270195A (en) A high pressure metal vapour discharge lamp
GB677035A (en) Improvements in or relating to gas and/or vapour filled electric discharge tubes

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee