GB496856A - Improvements in the manufacture of highly exhausted discharge tubes - Google Patents

Improvements in the manufacture of highly exhausted discharge tubes

Info

Publication number
GB496856A
GB496856A GB7157/38A GB715738A GB496856A GB 496856 A GB496856 A GB 496856A GB 7157/38 A GB7157/38 A GB 7157/38A GB 715738 A GB715738 A GB 715738A GB 496856 A GB496856 A GB 496856A
Authority
GB
United Kingdom
Prior art keywords
gas
getter
envelope
barium
compound
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
GB7157/38A
Other languages
English (en)
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
Publication of GB496856A publication Critical patent/GB496856A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183Composition or manufacture of getters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
GB7157/38A 1937-03-09 1938-03-07 Improvements in the manufacture of highly exhausted discharge tubes Expired GB496856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE207012X 1937-03-09

Publications (1)

Publication Number Publication Date
GB496856A true GB496856A (en) 1938-12-07

Family

ID=5793476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7157/38A Expired GB496856A (en) 1937-03-09 1938-03-07 Improvements in the manufacture of highly exhausted discharge tubes

Country Status (3)

Country Link
CH (1) CH207012A (enrdf_load_stackoverflow)
GB (1) GB496856A (enrdf_load_stackoverflow)
NL (1) NL50729C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540647A (en) * 1945-05-04 1951-02-06 Hartford Nat Bank & Trust Co Method of manufacturing electronic tubes with active getters
US3389288A (en) * 1965-02-25 1968-06-18 Getters Spa Gettering device including a getter metal and a gas releasing material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540647A (en) * 1945-05-04 1951-02-06 Hartford Nat Bank & Trust Co Method of manufacturing electronic tubes with active getters
US3389288A (en) * 1965-02-25 1968-06-18 Getters Spa Gettering device including a getter metal and a gas releasing material

Also Published As

Publication number Publication date
CH207012A (de) 1939-09-15
NL50729C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
GB926387A (en) Indicator tube
GB496856A (en) Improvements in the manufacture of highly exhausted discharge tubes
US1894948A (en) Manufacture of electron discharge devices
GB315704A (en) Improvements in or relating to luminous electric discharge tubes
US2228945A (en) Electric discharge tube
GB542390A (en) Improvements in or relating to electron discharge apparatus
US3784275A (en) Method of manufacturing an incandescent lamp
US1993767A (en) Space discharge device and method of making it
US1752747A (en) Electron-discharge device and getter therefor
US1917044A (en) Process for manufacturing highly emissive cathodes
GB352756A (en) Improvements in and relating to gaseous electric discharge devices
GB203266A (en) Improvements in or relating to cooling electrodes of x-ray tubes
US2054649A (en) Production of highly electro-positive metals within sealed vessels, such, for example, as thermionic valves
GB264258A (en) Improved process of inserting c?sium or rubidium in an electric discharge tube
GB473863A (en) Improvements in methods of producing electric lamps with high pressure gas fillings
US1890402A (en) Mercury luminescent tube electrode
US1758710A (en) Electron-discharge device
US1966254A (en) Production of active metals
GB170569A (en) Improvements in thermionic devices
GB238664A (en) Improvements relating to evacuated devices and methods of exhausting the same
US1659207A (en) Method of cleaning up residual gases
US1485505A (en) Process for introducing alkali or earth-alkali metals in discharging tubes and the like
GB471409A (en) Improvements in the manufacture of high-vacuum tubes
US1552606A (en) Electron-discharge device
US1835117A (en) Introduction of alkali metals into evacuated containers