DE665704C - Electrode for electrical discharge vessels, especially directly heated cathodes - Google Patents
Electrode for electrical discharge vessels, especially directly heated cathodesInfo
- Publication number
- DE665704C DE665704C DEA77868D DEA0077868D DE665704C DE 665704 C DE665704 C DE 665704C DE A77868 D DEA77868 D DE A77868D DE A0077868 D DEA0077868 D DE A0077868D DE 665704 C DE665704 C DE 665704C
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- electrical discharge
- directly heated
- coils
- discharge vessels
- 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
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
- H01J1/16—Cathodes heated directly by an electric current characterised by the shape
Landscapes
- Solid Thermionic Cathode (AREA)
Description
Elektrode für elektrische Entladungsgefät#e,'insbesondere unmittelbar geheizte Kathode Die Erfindung bezieht: sich auf eine aus mehreren zueinander parallellaufenden oder einen spitzen Winkel miteinander bildenden, nebeneinander angeordneten Wendeln bestehende Elektrode für elektrische Entladungsgefäße, insbesondere unmittelbar geheizte Kathode, deren einzelne Wendeln an einer Seite derart mit Hilfe eines gemeinsamen Verbindungsstückes gehalten sind, daß sie sich z. B. bei Temperaturänderungen gemeinsam um eine Achse des Verbindungsstückes drehen können.Electrode for electrical discharge vessels, especially directly heated cathode The invention relates to one of several parallel running cathodes or coils arranged next to one another and forming an acute angle with one another existing electrode for electrical discharge vessels, in particular directly heated cathode, whose individual coils on one side in such a way with the help of a common Connector are held that they are z. B. jointly with temperature changes can rotate about an axis of the connector.
Werden derartige Elektroden, z. B. in U-oder V-Form, benutzt, z. B. als Brennfaden, und ist der Wicklungssinn der beiden Zweige der gleiche, so haben die beiden Wendeln die Neigung, sich zu verdrehen. Dies tritt besonders dann ein, wenn die beiden Wendelzweige durch einen Kurzschließer verbunden sind, der von einer Feder gehalten wird.Are such electrodes, for. B. in U- or V-shape, used, for. B. as a filament, and if the direction of winding of the two branches is the same, so have it the two coils have a tendency to twist. This occurs especially when when the two filament branches are connected by a short-circuiting device that is operated by one Spring is held.
Gemäß der Erfindung wird dieser Nachteil dadurch vermieden, daß die Elektrode aus zwei oder einer Mehrzahl von zwei svmmetrisch zum Verbindungsstück angeordneten Wendeln gleicher Größe und Steigung besteht und daß die auf einer Seite des Verbindungsstückes liegende Wendel bzw. Wendeln linksgängig und die auf der anderen Seite liegende bzw. liegenden rechtsgängig ausgebildet sind.According to the invention, this disadvantage is avoided in that the Electrode of two or a plurality of two symmetrical to the connector arranged coils of the same size and pitch and that on one side of the connecting piece lying helix or helices left-handed and the one on the other side lying or lying right-handed are formed.
Eine Ausführungsform der Kathode gemäß der Erfindung ist in der Zeichnung beispielsweise dargestellt. r bedeutet den rechtsgängig gewickelten, 2 den linksgängig gewickelten Teil der Wendel. 3 ist ein Kurzschließer und, eine zum Spannen der Wendel bestimmte Feder.An embodiment of the cathode according to the invention is shown in the drawing for example shown. r means the right-hand wound, 2 the left-hand wound part of the helix. 3 is a short circuiter and, one for tensioning the coil certain spring.
Der Erfindungsgedanke läßt sich ebenso wie für eine einfache [J- oder V-förmige Anordnung sinngemäß auch für eine Anordnung, die mehr als zwei Teihvendel besitzt, anwenden. Beispielsweise könnte die (J- oder V-förmige Anordnung aus mehreren parallel geschalteten Wendeln bestehen.The idea of the invention can be applied to a simple [J- or V-shaped arrangement analogously also for an arrangement that has more than two Teihvendel owns, apply. For example, the (J- or V-shaped arrangement of several coils connected in parallel exist.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA77868D DE665704C (en) | Electrode for electrical discharge vessels, especially directly heated cathodes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA77868D DE665704C (en) | Electrode for electrical discharge vessels, especially directly heated cathodes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE665704C true DE665704C (en) | 1938-10-01 |
Family
ID=6947237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA77868D Expired DE665704C (en) | Electrode for electrical discharge vessels, especially directly heated cathodes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE665704C (en) |
-
0
- DE DEA77868D patent/DE665704C/en not_active Expired
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