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DE378064C - Process for the production of evacuated electron tubes u. like - Google Patents

Process for the production of evacuated electron tubes u. like

Info

Publication number
DE378064C
DE378064C DEP42629D DEP0042629D DE378064C DE 378064 C DE378064 C DE 378064C DE P42629 D DEP42629 D DE P42629D DE P0042629 D DEP0042629 D DE P0042629D DE 378064 C DE378064 C DE 378064C
Authority
DE
Germany
Prior art keywords
production
electron tubes
evacuated electron
tube
evacuated
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
DEP42629D
Other languages
German (de)
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.)
Publication date
Priority to DEP42629D priority Critical patent/DE378064C/en
Priority claimed from GB3625220A external-priority patent/GB177270A/en
Application granted granted Critical
Publication of DE378064C publication Critical patent/DE378064C/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Springs (AREA)

Description

Verfahren zur Herstellung von luftleeren Elektronenröhren u. dgl. Man. kennt bereits Elektronenröhren u. dgl., deren Glühfaden durch eine Scliraubenfed-er in Spannung gehalten wird. Damit die Spannkraft der Schraubenfeder unter der Erhitzung des Glühfadens während der Bemit7ung der Röhre nicht leidet, hat man sie auch schon in dem äußeren Ende eines Ansatzrohres untergebracht.Process for the production of evacuated electron tubes and the like. Man. already knows electron tubes and the like, the filament of which is driven by a spiral spring is kept in tension. So that the resilience of the coil spring under the heating of the filament does not suffer during the dimensioning of the tube, one already has it housed in the outer end of an extension tube.

Eine derartige Röhre ist in der Abbildung veranschaulicht. Die Röhre B enthält ein Ansatzrohr A, in dessen äußerem Ende die Spannfeder D untergebracht ist. Sie besteht aus einem Draht, dessen innerer Teil E geradlinig verläuft, durch eine Führung C .hindurchgeht und an dessen innerem Ende der Glühfad en F angehängt ist.Such a tube is shown in the figure. The tube B contains an extension tube A, in the outer end of which the tension spring D is housed. It consists of a wire whose inner part E runs in a straight line, passes through a guide C and at the inner end of which the filament F is attached.

Um eine schädliche Erhitzung der Spannfeiler l) auch während der Erhitzung der Röhre zwecks Absaugung der Luft zu verhüten, läßt man gemäß der Erfindung das Ansatzrohr _-1 währenddessen aus dem Heizofen vorstehen.To avoid harmful heating of the clamping pillars l) even during heating To prevent the tube for the purpose of sucking off the air, according to the invention, that In the meantime, extension pipe _-1 protrude from the heating furnace.

Claims (1)

PATENTANSPRUCH: Verfahren zum Herstellen von luftleeren Elektronenröhren u. dgl., deren Glühfaden durch. eine in dem äußeren Ende eines Ansatzrohres untergebrachte Schrauhenfeder in Spannung gehalten wird, dadurch gekennzeichnet, daß man das Ansatzrohr während des Erbitzens der Röhre zweck: Absaugens der Luft aus (lern Heizofen vorstehen läßt.PATENT CLAIM: Process for the production of evacuated electron tubes and the like, whose filament goes through. one housed in the outer end of an extension tube Helical spring is kept in tension, characterized in that the extension tube Purpose during the acquisition of the tube: To suck out the air (to protrude the heater leaves.
DEP42629D 1920-12-24 Process for the production of evacuated electron tubes u. like Expired DE378064C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP42629D DE378064C (en) 1920-12-24 Process for the production of evacuated electron tubes u. like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP42629D DE378064C (en) 1920-12-24 Process for the production of evacuated electron tubes u. like
GB3625220A GB177270A (en) 1920-12-24 1920-12-24 Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes

Publications (1)

Publication Number Publication Date
DE378064C true DE378064C (en) 1923-07-03

Family

ID=25990649

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP42629D Expired DE378064C (en) 1920-12-24 Process for the production of evacuated electron tubes u. like

Country Status (1)

Country Link
DE (1) DE378064C (en)

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