GB528553A - Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres - Google Patents

Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres

Info

Publication number
GB528553A
GB528553A GB1385939A GB1385939A GB528553A GB 528553 A GB528553 A GB 528553A GB 1385939 A GB1385939 A GB 1385939A GB 1385939 A GB1385939 A GB 1385939A GB 528553 A GB528553 A GB 528553A
Authority
GB
United Kingdom
Prior art keywords
sheath
wires
explosive atmospheres
operated
electric lamps
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
GB1385939A
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 GB1385939A priority Critical patent/GB528553A/en
Publication of GB528553A publication Critical patent/GB528553A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J5/46—Leading-in conductors

Landscapes

  • Glass Compositions (AREA)

Abstract

528,553. Incandescent and discharge electric lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gluhlampen.). May 9, 1939, Nos. 13859 and 24490. [Class 39 (ii)] [Also in Group XL] The leading-in wires (or at least one of the leading-in wires) of an incandescent or discharge electric lamp used in explosive atmospheres are insulated to prevent short-circuit if the wires touch by a sheath of woven vitreous material for example woven glass wool. The flexibility of the sheath may be increased by subjecting the vitreous fibres to known frosting or etching agents either before or after they are woven into the sheath.
GB1385939A 1939-05-09 1939-05-09 Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres Expired GB528553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1385939A GB528553A (en) 1939-05-09 1939-05-09 Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1385939A GB528553A (en) 1939-05-09 1939-05-09 Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres

Publications (1)

Publication Number Publication Date
GB528553A true GB528553A (en) 1940-10-31

Family

ID=10030669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1385939A Expired GB528553A (en) 1939-05-09 1939-05-09 Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres

Country Status (1)

Country Link
GB (1) GB528553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139417A (en) * 1983-03-03 1984-11-07 Philips Nv Halogen incandescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139417A (en) * 1983-03-03 1984-11-07 Philips Nv Halogen incandescent lamp

Similar Documents

Publication Publication Date Title
GB1421091A (en) Photoflash lamps
GB1019697A (en) Glow discharge device
GB528553A (en) Improvements in safety devices for electric lamps adapted to be operated in explosive atmospheres
GB506033A (en) Improvements in or relating to the envelopes and contact bases of electric discharge devices
GB615827A (en) Improvements in lamp-holders combined with suspension tubes
DK79076C (en) Tightener for filaments in electrical appliances, such as electric discharge tubes and incandescent lamps.
CA531268A (en) Incandescent electric lamp filament
GB1295538A (en)
CA462836A (en) Fluorescent and/or cathode glow lamp and method
AU162142B2 (en) Improvements in or relating to electric incandescent lamps or discharge tubes
FR1326153A (en) Electric incandescent carbide filament lamps having a high melting point
CA650355A (en) Electric incandescent lamp
AU160965B2 (en) Improvements in or relating to tensioning members for filaments for electrical apparatus, such as electric discharge tubes and incandescent lamps
CA482368A (en) Electric incandescent lamp or discharge tube
CA482367A (en) Electric incandescent lamp or discharge tube
CA525671A (en) Incandescent lamp with two filaments
ES28242U (en) Fluorescent lamp adaptable directly to the normal voltage electrical network (Machine-translation by Google Translate, not legally binding)
CA392391A (en) Filament, fibre and yarn crimping method
AU113365B2 (en) Improvements in gas-tight seals whereby electric conductors pass into a vitreous envelope
GB551425A (en) Improvements in and relating to electric incandescent lamps
AU1833153A (en) Improvements in or relating to electric incandescent lamps or discharge tubes
GB907437A (en) Improvements in or relating to electric lamps and to lampholders therefor
AU2025462A (en) Improvements in or relating togas-filled incandescent lamps having an incandescent filament of tungsten
ES212960A1 (en) Improvements in electrical safety lamps (Machine-translation by Google Translate, not legally binding)
AT171999B (en) Electric gas discharge lamp with built-in filament lamp