GB191420374A - Improvements in Electric Discharging Tubes. - Google Patents

Improvements in Electric Discharging Tubes.

Info

Publication number
GB191420374A
GB191420374A GB191420374DA GB191420374A GB 191420374 A GB191420374 A GB 191420374A GB 191420374D A GB191420374D A GB 191420374DA GB 191420374 A GB191420374 A GB 191420374A
Authority
GB
United Kingdom
Prior art keywords
electric discharging
discharging tubes
pocket
donath
wehnelt
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
Inventor
Bruno Donath
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191420374A publication Critical patent/GB191420374A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

20,374. Donath, B. Oct. 10, 1913, [Convention date]. Vacuum tubes. - An incandescent (Wehnelt) cathode consists of a perforated metal pocket a filled with a metallic compound b such as lime, with which the exterior may also be coated. The pocket may consist of platinum, as thin sheet or gauze, and preferably is flat.
GB191420374D 1913-10-10 1914-09-30 Improvements in Electric Discharging Tubes. Expired GB191420374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191420374X 1913-10-10

Publications (1)

Publication Number Publication Date
GB191420374A true GB191420374A (en) 1915-08-12

Family

ID=32523812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191420374D Expired GB191420374A (en) 1913-10-10 1914-09-30 Improvements in Electric Discharging Tubes.

Country Status (2)

Country Link
DE (1) DE279028C (en)
GB (1) GB191420374A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710161A (en) * 1970-10-30 1973-01-09 Gen Electric Quick-heating impregnated planar cathode

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047312B (en) * 1953-03-21 1958-12-24 Johann Buser Discharge-heated sheathed glow electrode for electric gas and vapor discharge lamps, especially for high and high pressure mercury vapor burners
US5747430A (en) * 1994-07-28 1998-05-05 Exxon Research And Engineering Company Lubricant composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710161A (en) * 1970-10-30 1973-01-09 Gen Electric Quick-heating impregnated planar cathode

Also Published As

Publication number Publication date
DE279028C (en)

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