DE247051C - - Google Patents
Info
- Publication number
- DE247051C DE247051C DENDAT247051D DE247051DA DE247051C DE 247051 C DE247051 C DE 247051C DE NDAT247051 D DENDAT247051 D DE NDAT247051D DE 247051D A DE247051D A DE 247051DA DE 247051 C DE247051 C DE 247051C
- Authority
- DE
- Germany
- Prior art keywords
- vacuum
- shut
- lines
- mercury
- tap
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/025—Particular coverings or materials
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei Anlagen, welche mit hoher Luftverdünnung arbeiten, ist es sehr schwer, die in den Rohrleitungen oder an den Apparaten angebrachten Hähne, Ventile dauernd dicht zu halten. Um diese in bezug auf das Erhalten des Vakuums schwachen Punkte der Leitung zu sichern, ist bei der vorliegenden Erfindung die Anordnung derart getroffen, daß die Abschluß vorrichtung in einen RaumIn systems that work with high air dilution, it is very difficult to use the in the taps and valves attached to the pipelines or the apparatus are permanently tight to keep. In order to secure these weak points in the line with regard to the maintenance of the vacuum, it is in the present case Invention made the arrangement such that the termination device in a room
ίο eingeschlossen ist, der selbst dauernd evakuiert wird, zweckmäßig von einer Luftpumpe oder sonstigen Einrichtungen, welche getrennte Leitungen von der eigentlichen Feinvakuumleitung haben,ίο is included who is constantly evacuating himself is expediently by an air pump or other devices, which separate lines from the actual fine vacuum line,
Bei der Glühlampenfabrikation bedient man sich auch schon bisher solcher getrennten Vakuumleitung, aber mit der Absicht, das hohe Vakuum leichter herstellen zu können, indem die Feinvakuumpumpen mit einer Grob-Vakuumpumpe in Verbindung gebracht werden. Verbindet man bei der in der Figur dargestellten Anordnung durch die Rohrleitung I und den Hahn h die hoch zu evakuierenden Gefäße mit der Feinvakuumpumpe und den Raum i durch die Rohrleitung k mit dem Grobvakuum, das z. B. bei der Glühlampenfabrikation im allgemeinen nicht über 5 mm Quecksilbersäule beträgt, so beträgt der Druckunterschied zwischen i und I nur wenige Millimeter Quecksilbersäule; daher ist der zum Abschluß dienende Hahn h leicht dicht zu halten. Der Behälter i ist in der vorliegenden Ausführungsform gegen die äußere Luft durch einen eingeschliffenen Stöpsel s abgeschlossen. Durch Drehen desselben kann der Hahn h ebenfalls gedreht werden. Statt des Hahnes h kann natürlich auch ein Ventil oder irgend sonst eine Absperrvorrichtung benutzt werden. Auch kann an Stelle des Stöpsels s eine Stopfbuchse treten, durch welche die Hahnverlängerung hindurchgeleitet ist.In the manufacture of incandescent lamps, such separate vacuum lines have already been used, but with the intention of being able to produce the high vacuum more easily by connecting the fine vacuum pumps with a coarse vacuum pump. If in the arrangement shown in the figure, through the pipe I and the tap h, the vessels to be evacuated are connected to the fine vacuum pump and the space i through the pipe k to the low vacuum, which is e.g. B. in the manufacture of incandescent lamps generally does not exceed 5 mm of mercury, the pressure difference between i and I is only a few millimeters of mercury; therefore the closing cock h is easy to keep tight. In the present embodiment, the container i is closed off from the outside air by a ground plug s. By turning it, the tap h can also be turned. Instead of the cock h , of course, a valve or some other shut-off device can also be used. Also, in place of the plug s enter a stuffing box through which the valve extension is passed.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE258035T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE247051C true DE247051C (en) |
Family
ID=33103092
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT258035D Active DE258035C (en) | |||
DENDAT247051D Active DE247051C (en) |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT258035D Active DE258035C (en) |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE247051C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1218170B (en) * | 1962-03-15 | 1966-06-02 | Hagenuk Neufeldt Kuhnke Gmbh | Liquid level with hydrostatic transmission |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080039913A1 (en) * | 2006-08-09 | 2008-02-14 | Hagay Mizrahi | Aromatherapy blanket pack |
-
0
- DE DENDAT258035D patent/DE258035C/de active Active
- DE DENDAT247051D patent/DE247051C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1218170B (en) * | 1962-03-15 | 1966-06-02 | Hagenuk Neufeldt Kuhnke Gmbh | Liquid level with hydrostatic transmission |
Also Published As
Publication number | Publication date |
---|---|
DE258035C (en) |
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