GB547645A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB547645A
GB547645A GB1215941A GB1215941A GB547645A GB 547645 A GB547645 A GB 547645A GB 1215941 A GB1215941 A GB 1215941A GB 1215941 A GB1215941 A GB 1215941A GB 547645 A GB547645 A GB 547645A
Authority
GB
United Kingdom
Prior art keywords
relating
electric discharge
discharge tubes
philips
gloeilampenfabrieken
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
GB1215941A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB1215941A priority Critical patent/GB547645A/en
Publication of GB547645A publication Critical patent/GB547645A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • General Details Of Gearings (AREA)

Abstract

547,645. Discharge apparatus. PHILIPS LAMPS, Ltd (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Sept. 19, 1941, No. 12159. Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 597,503.
GB1215941A 1941-09-19 1941-09-19 Improvements in or relating to electric discharge tubes Expired GB547645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1215941A GB547645A (en) 1941-09-19 1941-09-19 Improvements in or relating to electric discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1215941A GB547645A (en) 1941-09-19 1941-09-19 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
GB547645A true GB547645A (en) 1942-09-04

Family

ID=9999420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1215941A Expired GB547645A (en) 1941-09-19 1941-09-19 Improvements in or relating to electric discharge tubes

Country Status (1)

Country Link
GB (1) GB547645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523269A (en) * 1943-12-03 1950-09-26 Int Standard Electric Corp Activated cathode for electron discharge devices
US2607742A (en) * 1949-12-30 1952-08-19 Tung Sol Lamp Works Inc Metallic getter compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523269A (en) * 1943-12-03 1950-09-26 Int Standard Electric Corp Activated cathode for electron discharge devices
US2607742A (en) * 1949-12-30 1952-08-19 Tung Sol Lamp Works Inc Metallic getter compositions

Similar Documents

Publication Publication Date Title
GB550826A (en) Improvements in or relating to barrier-layer rectifiers for alternating current
GB554828A (en) Improvements in or relating to electric discharge tubes having a directional electron beam
GB553466A (en) Improvements in or relating to cathode-ray tubes
GB553181A (en) Improvements in or relating to electric discharge tubes with deflection control
GB547645A (en) Improvements in or relating to electric discharge tubes
GB549727A (en) Improvements in or relating to electric high-pressure metal-vapour discharge tubes
GB551226A (en) Improvements in or relating to electric discharge tubes
GB547646A (en) Improvements in or relating to gas filled electric discharge tubes
GB552612A (en) Improvements in or relating to cathode-ray tubes
GB552753A (en) Improvements in or relating to the exhaust tube constructions in the envelopes of discharge tubes
GB546376A (en) Improvements in or relating to electric discharge tubes
GB551732A (en) Improvements in and relating to the manufacture of magnetic circuits
GB548003A (en) Improvements in or relating to kinematograph projectors
GB552597A (en) Improvements in or relating to devices comprising electric gaseous discharge tubes
GB546584A (en) Improvements in or relating to electric discharge tubes
GB554024A (en) Improvements in or relating to optical systems comprising a correction element
GB545106A (en) Improvements in or relating to cinematograph projection apparatus
GB549275A (en) Improvements in or relating to electric discharge tubes
GB548651A (en) Improvements in or relating to the manufacture of ceramic insulators
GB551016A (en) Improvements in or relating to flash-light lamps
GB552403A (en) Improvements in or relating to means for tuning wireless sets
GB544330A (en) Improvements in and relating to insulated electric conductors
GB548606A (en) Improvements in or relating to electric insulators
GB552688A (en) Improvements in or relating to circuits for the conversion of sawtooth voltages into sawtooth currents
GB550104A (en) Improvement in electric discharge tubes and circuit arrangements therefor