CH95579A - Light tube for quartz lamps operated with alternating current. - Google Patents
Light tube for quartz lamps operated with alternating current.Info
- Publication number
- CH95579A CH95579A CH95579DA CH95579A CH 95579 A CH95579 A CH 95579A CH 95579D A CH95579D A CH 95579DA CH 95579 A CH95579 A CH 95579A
- Authority
- CH
- Switzerland
- Prior art keywords
- light tube
- alternating current
- quartz lamps
- lamps operated
- mercury
- Prior art date
Links
- 239000010453 quartz Substances 0.000 title claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
- H01J13/02—Details
- H01J13/34—Igniting arrangements
- H01J13/42—Igniting by movement of vessel as a whole, e.g. tilting
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Description
Leuchtrohr für mit Wechselstrom betriebene quarzlampen. Bei Wechselstrom-Quarzbrennern ist das Zünden durch Kippen des Leuchtrohres mehr oder weniger eine Sache des Zufalls, weil es von der Art und Weise abhängt, wie das zu vor aus den drei Polgefässen zusammenge flossene Quecksilber im Augenblick der Zün dung abreisst. Von dieser Zufallswirkung hängt daher auch die Sicherheit und Schnellig keit des Zündens ab.
Gemäss der Erfindung wird ein schnelles sicheres Zünden dadurch herbeigeführt; däss die Trennstelle der Queck silbermenge, die aus den Anodenpolgefässen zu dem Kathodenpolgefäss übergeflossen ist, zwangsweise in allernächste Nähe des Licht bogenangriffs beim Kathodenpol verlegt wird. Der Lichtbogen muss also sofort an der rich tigen Stelle entstehen. Diese Wirkung wird erzielt durch Anordnung einer als Scheide wand dienenden Rippe am Boden des Leucht- rohres, die sich in dessen Längsrichtung am Kathodenende erstreckt.
Die Erfindung ist in einem Ausführungs beispiel auf der Zeichnung veranschaulicht, und zwar zeigt Fig. 1 einen Längsschnitt durch das Kathodenende des Leuchtrohres, und Fig. 2 einen senkrechten Schnitt zu Fig.1.
Es ist L das Leuchtrohr und K das Ka- thodenpolgefäss, das sich mittelst eines ver engten Ansatzes, der sogenannten Capillare C an das Leuchtrohr anschliesst. Gemäss der Erfindung ist nun am Boden des letzteren eine senkrechte, - wenige Millimeter hohe Scheidewand S längs der Mitte des Leucht- rohres aufgeschmolzen; diese Wand reicht bis in die Capillare C hinein, d. h. bis an den Teil, an welchem der Lichtbogen seinen Ur sprung hat.
Die Capillare ist an der Ansatz stelle zum Leuchtrohr etwas trichterförmig erweitert und die Höhe der Scheidewand b' ist so bemessen, dass deren Oberkante gerade bis zum Anfang der eigentlichen Bohrung der Capillare verläuft.
Zwecks Zündung wird bekanntlich der auf der Zeichnung links zu denkende Teil des Leuchtrohres etwas angehoben, so dass das Quecksilber der beiden Anodenpolgefässe mit dem Quecksilber des Kathodenpolgefässes (in der Zeichnung mit H,g bezeichnet) zu- sammenläuft). Wird nun das Leuchtrohr zu rückgekippt, so mur sich das zusammenge flossene Quecksilber unbedingt bei dem Punkte T, d. h. an der Stelle, an welcher die Ober kante der Scheidewand an die Wandung der Capillare anläuft, trennen. Hierdurch wird eine sichere schnelle Zündung bewirkt.
Light tube for quartz lamps operated with alternating current. With AC quartz burners, igniting by tilting the light tube is more or less a matter of chance, because it depends on the way in which the mercury that has flowed together from the three pole vessels tears off at the moment of ignition. The safety and speed of ignition therefore also depend on this random effect.
According to the invention, rapid, reliable ignition is thereby brought about; that the point of separation of the amount of mercury that has overflowed from the anode pole vessel to the cathode pole vessel is forcibly relocated as close as possible to the arc attack at the cathode pole. The arc must therefore arise immediately in the right place. This effect is achieved by arranging a rib serving as a sheath wall on the bottom of the light tube, which extends in its longitudinal direction at the cathode end.
The invention is illustrated in an embodiment example on the drawing, namely Fig. 1 shows a longitudinal section through the cathode end of the light tube, and Fig. 2 shows a perpendicular section to Fig.1.
L is the light tube and K is the cathode pole vessel, which is connected to the light tube by means of a narrowed attachment, the so-called capillary C. According to the invention, a vertical partition S a few millimeters high is now melted on the bottom of the latter along the center of the light tube; this wall extends into the capillary C, d. H. up to the part where the arc originated.
The capillary is somewhat funnel-shaped at the point of attachment to the light tube and the height of the partition b 'is dimensioned such that its upper edge runs straight to the beginning of the actual bore of the capillary.
For the purpose of ignition, it is known that the part of the light tube that is to be thought of on the left in the drawing is raised slightly so that the mercury of the two anode pole vessels converges with the mercury of the cathode pole vessel (designated H, g in the drawing). If the light tube is now tilted back, the mercury that has flowed together must necessarily be at the point T, i.e. H. cut at the point at which the upper edge of the septum meets the wall of the capillary. This brings about a reliable, rapid ignition.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE95579X | 1920-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH95579A true CH95579A (en) | 1922-07-17 |
Family
ID=5645549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH95579D CH95579A (en) | 1920-12-31 | 1921-11-01 | Light tube for quartz lamps operated with alternating current. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1602238A (en) |
| AT (1) | AT91230B (en) |
| CH (1) | CH95579A (en) |
| FR (1) | FR538598A (en) |
-
1921
- 1921-07-22 FR FR538598D patent/FR538598A/en not_active Expired
- 1921-10-31 AT AT91230D patent/AT91230B/en active
- 1921-11-01 CH CH95579D patent/CH95579A/en unknown
- 1921-12-28 US US525427A patent/US1602238A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1602238A (en) | 1926-10-05 |
| AT91230B (en) | 1923-02-10 |
| FR538598A (en) | 1922-06-12 |
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