DE857239C - Process for the production of an electrical discharge vessel - Google Patents

Process for the production of an electrical discharge vessel

Info

Publication number
DE857239C
DE857239C DET2332D DET0002332D DE857239C DE 857239 C DE857239 C DE 857239C DE T2332 D DET2332 D DE T2332D DE T0002332 D DET0002332 D DE T0002332D DE 857239 C DE857239 C DE 857239C
Authority
DE
Germany
Prior art keywords
pump tube
production
electrical discharge
discharge vessel
piston
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
DET2332D
Other languages
German (de)
Inventor
Kurt Palme
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DET2332D priority Critical patent/DE857239C/en
Application granted granted Critical
Publication of DE857239C publication Critical patent/DE857239C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks

Landscapes

  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Description

Bei elektrischen Entladungsgefäßen und insbesondere bei Kurzwellenröhren ist es nicht immer möglich, das Pumpröhrchen innerhalb des Fußes. der Röhre anzuordnen. Das gilt beispielsweise für Kurzwellenröhren, bei denen im Fuß gar kein Platz für die Anordnung eines Pumpröhrchens vorhanden ist. Wenn man, daher gezwungen ist, dieses Pumpröhrchen am oberen Ende des Gefäßes anzuordnen, so empfiehlt es sich, das Gefäß so auszubilden., daß das Pumpröh rohen auch in diesem Fall gegen mechanische Beschädigungen geschützt isst. Einen solchen Schutz kann, man nach einem bekannten Vorschlag beispielsweise dadurch erreichen, daß das Kolbenende, das das Pumpröhrchen trägt, derart eingezogen wird, daß das Pumpröhrchen ganz oder zu einem wesentlichen Teil durch das Kolbenende geschützt ist.In the case of electrical discharge vessels and especially in the case of short-wave tubes, it is not always possible to place the pump tube inside the foot. to arrange the tube. This applies, for example, f or short-wave tubes, with no space for the arrangement of a pumping tube is present in the foot. If, therefore, one is forced to arrange this pump tube at the upper end of the vessel, it is advisable to design the vessel in such a way that the pump tube eats raw material in this case as well against mechanical damage. Such protection can, according to a known proposal, be achieved, for example, in that the piston end which carries the pump tube is drawn in such that the pump tube is protected entirely or to a substantial extent by the piston end.

Die Erfindung betrifft ein Verfahren zur Herstellung eines Entladungsgefäßes aus Glas, bei dem von dem bekannten Vorschlag Gebrauch gemacht wird. Nach dem Vorschlag der Erfindung erfolgt das Einziehen des oberen Röhrenkolbens dadurch, daß nach dem Abschmelzen des Kolbens eine ringförmige Zone im Umkreis des Pumpröhrchens erhitzt und dann der das Pumpröhrchen tragende Wandungsteil nach innneu gedrückt wird. Das Eindrücken erfolgt vorzugsweise durch den äußeren Luftdruck.The invention relates to a method for producing a discharge vessel made of glass, in which use is made of the known proposal. According to the suggestion the invention, the retraction of the upper tubular piston takes place in that after Melting off the piston heated an annular zone around the pump tube and then the wall part carrying the pump tube is pressed inwardly. That Pressing is preferably done by the external air pressure.

Der Herstellungsvorgang gemäß der Erfindung soll an Hand der Abbildungen näher erläutert werden. Abb. i zeigst das obere Ende eines Kolbens i, an dem sich der zugeschmolzene Pumpstutzen 2 befindet. Zum Eindrücken dieses Pumpstutzens in die in Abb. 2 dargestellte Lage wird zunächst die ringförmige Zone um das Pumpröhrchen 2 erhitzt, bis das Glas weich wird. Anschließend wird das Pumpröhrchen und ein kleiner, dieses umgehende Wandungsteil unter dem Einfluß des äußeren Luftdruckes eingedrückt, und es entsteht die aus Abb. 2 zu erkennende ringförmige Vertiefung 3, in deren Mitte sich das Pumpröhrchen befindet.The manufacturing process according to the invention should be based on the figures are explained in more detail. Fig. I shows the upper end of a piston i, on which the fused pump nozzle 2 is located. To push this pump nozzle in the position shown in Fig. 2 is initially the ring-shaped zone around the pump tube 2 heated until the glass softens. Then the pump tube and a small, this surrounding wall part is pressed in under the influence of the external air pressure, and there arises from Fig. 2 to be seen annular recess 3, in which The pump tube is in the middle.

Die Vertiefung kann nach Bedarf so gewählt werden, d.aß das Pumpröhrc'hen völlig verschwindet, sie kann; aber auch so dimensioniert werden, da.ß die Spitze des Pumpröhrchens noch über das Ende des Röhrenkolbens etwas 'herausragt. Auch in diesem letzteren Fall besteht noch keine Gefahr, daß das Röhrchen abgebrochen wird.The recess can be chosen as required, i.e. the pump tube disappears completely, it can; but also be dimensioned so that the tip of the pump tube still protrudes slightly over the end of the tube piston. Also in in this latter case there is still no risk of the tube being broken off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines elektrischen Entladungsgefäßes aus Glas mixt einem Pumpröhrchen, das ganz oder zu einem wesentlichen Teil in einer durch Einziehung des oberen Kolbenendes gebildeten Vertiefung angesetzt ist, dadurch gekennzeichnet, daß nach dem Abschmelzen des Kolbens eine ringförmige Zone im Umkreis des Pumpröhrchens erhitzt und dann der das Pumpröhrchen tragende Wandungsteil, vorzugsweise durch den äußeren Luftdruck, nach innen gedrückt wird.PATENT CLAIM: Process for the production of an electrical discharge vessel made of glass mixes a pump tube, all or a substantial part of it in one by retraction of the upper end of the piston formed recess is attached, thereby characterized in that after the piston has melted, an annular zone in the circumference of the pump tube is heated and then the wall part carrying the pump tube, preferably is pushed inwards by the external air pressure.
DET2332D 1941-03-18 1941-03-18 Process for the production of an electrical discharge vessel Expired DE857239C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET2332D DE857239C (en) 1941-03-18 1941-03-18 Process for the production of an electrical discharge vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET2332D DE857239C (en) 1941-03-18 1941-03-18 Process for the production of an electrical discharge vessel

Publications (1)

Publication Number Publication Date
DE857239C true DE857239C (en) 1952-11-27

Family

ID=7543801

Family Applications (1)

Application Number Title Priority Date Filing Date
DET2332D Expired DE857239C (en) 1941-03-18 1941-03-18 Process for the production of an electrical discharge vessel

Country Status (1)

Country Link
DE (1) DE857239C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2716572A1 (en) * 1994-02-22 1995-08-25 Pixel Int Sa Gas removal element for micro-point flat display screen mfr.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2716572A1 (en) * 1994-02-22 1995-08-25 Pixel Int Sa Gas removal element for micro-point flat display screen mfr.
US5519284A (en) * 1994-02-22 1996-05-21 Pixel International Short pumping stem for flat display screens

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