DE249743C - - Google Patents
Info
- Publication number
- DE249743C DE249743C DENDAT249743D DE249743DA DE249743C DE 249743 C DE249743 C DE 249743C DE NDAT249743 D DENDAT249743 D DE NDAT249743D DE 249743D A DE249743D A DE 249743DA DE 249743 C DE249743 C DE 249743C
- Authority
- DE
- Germany
- Prior art keywords
- container
- liquid
- measuring tube
- liquid level
- zero point
- 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
- 239000007788 liquid Substances 0.000 claims description 10
- 230000000875 corresponding Effects 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/18—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
- G01L7/24—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges involving balances in the form of rings partly filled with liquid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der Erfindung bildet ein Flüssigkeitsdifferenzdruckmesser mit ■ Flüssigkeitsbehälter und geneigtem Meßrohr.The subject of the invention is a liquid differential pressure meter with ■ liquid container and inclined measuring tube.
Da die Flüssigkeitssäule, welche meistens aus gefärbtem Alkohol besteht, ziemlich stark der Verdunstung ausgesetzt ist, muß der Nullpunkt, auf welchen die Messung bezogen werden soll, stets kontrolliert und häufig nachgestellt werden. Um dies zu bewerkstelligen,Because the column of liquid, which mostly consists of colored alcohol, is quite strong is exposed to evaporation, the zero point to which the measurement is related must be should always be checked and readjusted frequently. To do this
ίο wird z. B. längs der Glasskala ein Maßstab mit entsprechender Druck- oder Volumenteilung verschiebbar gelagert. Es hat sich dabei herausgestellt, daß dieses Verschieben des Maßstabes Umständlichkeiten bereitet \ denn da man eine Präzisionsschlittenführung aus Metall nicht in Kauf nehmen will, muß man sich mit hölzernen Maßstäben begnügen, welche sich leicht verziehen und daher lästig zu verschieben sind.ίο is z. B. along the glass scale a scale with a corresponding pressure or volume division mounted displaceably. It has turned out here that this move is preparing the scale Umständlichkeiten \ because since you do not want to take a precision slide guide of metal into account, one must be content with wooden scales, which are easy to deform and thus be postponed annoying.
Ferner ist es bekannt, Nullpunktsänderungen bei Druckanzeigeinstrumenten durch Veränderung des Flüssigkeitsstandes in einem mit dem Meßrohr verbundenen Behälter auszugleichen. Auf derartige Ausgleichvorrichtungen bezieht sich die vorliegende Erfindung, die darin besteht, daß das eine Ende des feststehenden Meßrohres mittels einer Abdichtung o. dgl. in den Behälter hineingeführt ist und gleichzeitig als horizontale Drehachse dient, um welche der Behälter zwecks Änderung des Flüssigkeitsstandes gedreht werden kann.It is also known to change the zero point in pressure indicating instruments by changing them equalize the liquid level in a container connected to the measuring tube. The present invention relates to such balancing devices consists in that one end of the stationary measuring tube is guided into the container by means of a seal or the like and at the same time serves as a horizontal axis of rotation, around which the container for the purpose of change the liquid level can be rotated.
Die Zeichnung stellt eine Ausführung dar, bei welcher die Meßröhre feststeht, das Reservoir jedoch beweglich ist und trotzdem besondere bewegliche Verbindungsstücke zwischen Reservoir und Meßröhre vermieden sind. Zu diesem Zweck wird das eine Ende der Meßröhre m als Drehpunkt d des Gefäßes r ausgebildet und beide Teile durch einen Konus oder ein ähnliches Dichtungsstück miteinander flüssigkeitsdicht verbunden. Das Verstellen des Gefäßes und hierdurch auch der Flüssigkeitssäule wird durch Drehen einer Schraube s bewirkt, /»bedeutet einen Doppelhahn, der zur Kontrolle des Nullpunktes geschlossen werden muß.The drawing shows an embodiment in which the measuring tube is stationary, but the reservoir is movable and nevertheless special movable connecting pieces between the reservoir and the measuring tube are avoided. For this purpose, one end of the measuring tube m is designed as the fulcrum d of the vessel r and the two parts are connected to one another in a liquid-tight manner by a cone or a similar sealing piece. The adjustment of the vessel and thereby also the liquid column is effected by turning a screw s, / »means a double tap which must be closed to check the zero point.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE249743C true DE249743C (en) |
Family
ID=508334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT249743D Active DE249743C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE249743C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2609687A (en) * | 1949-08-03 | 1952-09-09 | Harry L Coleman | Adjustable liquid gauge |
| US2702477A (en) * | 1950-04-06 | 1955-02-22 | Otto J Leone | Suppressed range deflection-type manometric system |
-
0
- DE DENDAT249743D patent/DE249743C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2609687A (en) * | 1949-08-03 | 1952-09-09 | Harry L Coleman | Adjustable liquid gauge |
| US2702477A (en) * | 1950-04-06 | 1955-02-22 | Otto J Leone | Suppressed range deflection-type manometric system |
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