GB295072A - Improvements in and relating to gas-filled electric lamps - Google Patents

Improvements in and relating to gas-filled electric lamps

Info

Publication number
GB295072A
GB295072A GB1288927A GB1288927A GB295072A GB 295072 A GB295072 A GB 295072A GB 1288927 A GB1288927 A GB 1288927A GB 1288927 A GB1288927 A GB 1288927A GB 295072 A GB295072 A GB 295072A
Authority
GB
United Kingdom
Prior art keywords
gas
chlorine
electric lamps
hydrochloric acid
desired product
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
GB1288927A
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.)
Siemens Electric Lamps and Supplies Ltd
Original Assignee
Siemens Electric Lamps and Supplies Ltd
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 Siemens Electric Lamps and Supplies Ltd filed Critical Siemens Electric Lamps and Supplies Ltd
Priority to GB1288927A priority Critical patent/GB295072A/en
Publication of GB295072A publication Critical patent/GB295072A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter

Landscapes

  • Discharge Lamp (AREA)

Abstract

295,072. Siemens Electric Lamps & Supplies, Ltd., and Oakley, P. D. May 13, 1927. Residual gases.-Gas-filled tungsten-filament lamp bulbs contain, in addition to the usual gas filling, chlorine substitution products of the aliphatic hydrocarbons, e.g. methyl chloride. methylene chloride, chloroform, and carbon tetrachloride. The desired product may be formed in the bulbs, e.g. by introducing a mixture of ethane and chlorine, or of ethylene and hydrochloric acid gas or chlorine. Mixtures such as alcohol and hydrochloric acid gas that would produce water vapour in addition to the desired product are inadmissible. Specification 270,900. which describes the introduction of oxyhalide of carbon into the gas filling, is referred to.
GB1288927A 1927-05-13 1927-05-13 Improvements in and relating to gas-filled electric lamps Expired GB295072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1288927A GB295072A (en) 1927-05-13 1927-05-13 Improvements in and relating to gas-filled electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1288927A GB295072A (en) 1927-05-13 1927-05-13 Improvements in and relating to gas-filled electric lamps

Publications (1)

Publication Number Publication Date
GB295072A true GB295072A (en) 1928-08-09

Family

ID=10012978

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288927A Expired GB295072A (en) 1927-05-13 1927-05-13 Improvements in and relating to gas-filled electric lamps

Country Status (1)

Country Link
GB (1) GB295072A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200433B (en) * 1956-01-16 1965-09-09 Union Carbide Corp Incandescent lamp with a tantalum carbide filament

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200433B (en) * 1956-01-16 1965-09-09 Union Carbide Corp Incandescent lamp with a tantalum carbide filament

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