DE289411C - - Google Patents
Info
- Publication number
- DE289411C DE289411C DE1914289411D DE289411DD DE289411C DE 289411 C DE289411 C DE 289411C DE 1914289411 D DE1914289411 D DE 1914289411D DE 289411D D DE289411D D DE 289411DD DE 289411 C DE289411 C DE 289411C
- Authority
- DE
- Germany
- Prior art keywords
- depressions
- membrane
- measuring
- box
- walls
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
- G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
- G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
- G01F3/225—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases characterised by constructional features of membranes or by means for improving proper functioning of membranes
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft die Verbesserung der Meßgefäße nach dem Patent 283289 und besteht aus folgenden Einzelheiten:The invention relates to the improvement of the measuring vessels according to patent 283289 and consists from the following details:
i. Es stehen die kastenähnlichen Vertiefungen in Verbindung mit vielen kleinen Rinnen oder Furchen 0, die sich über die verjüngten Wände der Meßgefäßhälften erstrekken, um ein Festsaugen der Membran an diesen Wänden zu verhüten.i. The box-like depressions are in connection with many small grooves or furrows 0 which extend over the tapered walls of the measuring vessel halves in order to prevent the membrane from being sucked into these walls.
2. Es sind die genannten kasten ähnlichen Vertiefungen mit einstellbaren Anschlägen p (z. B. Schrauben) ausgerüstet, insbesondere bei größeren Messern, zum Zwecke, Ungenauigkeiten der Herstellung in bezug auf Meßgenauigkeit des Messers wirkungslos zu machen. In der Zeichnung sind die Furchen 0 der Gefäßwände sowie auch die verstellbaren Anschläge p innerhalb der Vertiefungen ersichtlich. 2. The box-like depressions mentioned are equipped with adjustable stops p (e.g. screws), especially in the case of larger knives, for the purpose of rendering inaccuracies in manufacture ineffective with regard to the measuring accuracy of the knife. In the drawing, the furrows 0 of the vessel walls as well as the adjustable stops p within the depressions can be seen.
Membranmesser mit Meßgefäßen nach dem Hauptpatent schließen Ausbauchungen der Membran aus, auch bei größerer Druckverschiedenheit der einzelnen Meßgefäße, da sich die Membran sozusagen zwangläufig an dieMembrane knives with measuring vessels according to the main patent close bulges of the Membrane off, even if there is a greater difference in pressure between the individual measuring vessels, because the membrane inevitably to the
»5 sich verjüngenden Meßgefäße anlegt, und da dadurch eine räumlich wirklich gleichbleibende Meßkammer gebildet wird. Nun wäre es aber nicht ausgeschlossen, daß sich neuimprägnierte Membranen infolge des zwangläufigen Anlegens an die Meßgefäßwände festsaugen, und daß hiermit Gangstörungen des Messers auftreten könnten.“Put on 5 tapered measuring vessels, and there thereby a spatially really constant measuring chamber is formed. Now it would be not excluded that newly impregnated membranes as a result of the inevitable application suck firmly to the walls of the measuring vessel, and that this causes gait disturbances in the knife could.
Die Möglichkeit des Festsaugens wird durch eine Anzahl ganz kleiner Furchen oder Rinnen 0, welche netzartig angeordnet und von den kastenähnlichen Vertiefungen auslaufend die Meßgefäßwände und Vertiefungen miteinander verbinden, behoben. Trotzdem sind auch bei dieser Ausführung Ausbuchungen der Membran unmöglich, da die Furchen 0 ganz schmal und von großer Anzahl sind.The possibility of tight suction is eliminated by a number of very small furrows or grooves 0, which are arranged like a network and, extending from the box-like depressions, connect the measuring vessel walls and depressions to one another. Nevertheless, in this embodiment, too, the membrane cannot be bulged out, since the furrows 0 are very narrow and there are a large number of them.
Mit der Größenzunahme bei Membranmessern wachsen auch die Ungenauigkeiten der Herstellung besonders dann, wenn die Meßgefäße ohne maschinelle Vorrichtungen von Hand angefertigt werden. Um diese nicht zu vermeidenden Ungenauigkeiten der Herstellung auszugleichen, und auch bei ganz großen Messern eine Meßkammer von genauem Rauminhalt zu erzielen, werden beim Einlegen der Membran die Schrauben p, den Ungenauigkeiten der Handarbeit entsprechend, einzeln eingestellt.As the size of membrane knives increases, so do the inaccuracies in production, especially when the measuring vessels are made by hand without mechanical devices. In order to compensate for these unavoidable manufacturing inaccuracies, and to achieve a measuring chamber of exact volume even with very large knives, the screws p are individually adjusted when the membrane is inserted, according to the inaccuracies of manual work.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE283289T | 1913-05-07 | ||
DE289411T | 1914-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE289411C true DE289411C (en) | 1915-12-22 |
Family
ID=544445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1914289411D Expired DE289411C (en) | 1913-05-07 | 1914-11-14 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE289411C (en) |
-
1914
- 1914-11-14 DE DE1914289411D patent/DE289411C/de not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1281695B (en) | Flat vibrating measuring string | |
DE2426474B2 (en) | SPEAKER WITH A VIBRATING COIL AND A PIEZOELECTRIC FEEDBACK CONVERTER | |
DE289411C (en) | ||
DE2506710C2 (en) | Piezoelectric electroacoustic transducer | |
DE2903253B1 (en) | Pressure transmitter with a measuring membrane, preferably made of semiconductor material, and a strain gauge bridge circuit attached to it | |
DE2903994A1 (en) | AIR PRESSURE SENSOR | |
DE600675C (en) | Gas pressure regulator | |
DE396994C (en) | Perforated partition for electrolytic water decomposers | |
DE721336C (en) | Diaphragm pump with electromagnetic drive | |
Würth | Klosterlandschaft Sachsen-Anhalt. | |
DE2254228C3 (en) | Pressure-dependent, electrical switch with several, mutually independent, membrane-operated switching systems | |
DE553694C (en) | Membrane for acoustic apparatus with stampings regularly distributed over the membrane surface | |
DE731856C (en) | Rail deflection contact, in which the effect on the contact-making system is achieved via a pneumatic or hydraulic chamber | |
DE442472C (en) | Sound box | |
Steudel | Zur Histochemie der Spermatozoen. III. Mitteilung. | |
DE2024130C3 (en) | Procedure for noise suppression in dynamic compressors | |
DE520325C (en) | Sentence load cell | |
AT49203B (en) | Wide washing machine. | |
DE864830C (en) | Compressed air caisson with water-filled conveyor shaft open at the top | |
DE900830C (en) | Electrostatic microphone with stretched and multiple supported membrane | |
DE867008C (en) | Flow meter | |
DE450760C (en) | Pressure reducing valve for gases and vapors | |
DE2713998B2 (en) | Pneumatic module with time response | |
Krause | Yntiso Gebre, Itaru Ohta und Mototji Matsuda (Hg.): African Virtues in the Pursuit of Conviviality. Exploring Local Solutions in Light of Global Prescriptions | |
DE274964C (en) |