DE487270C - Gas-tight membrane - Google Patents

Gas-tight membrane

Info

Publication number
DE487270C
DE487270C DESCH83844D DESC083844D DE487270C DE 487270 C DE487270 C DE 487270C DE SCH83844 D DESCH83844 D DE SCH83844D DE SC083844 D DESC083844 D DE SC083844D DE 487270 C DE487270 C DE 487270C
Authority
DE
Germany
Prior art keywords
gas
membrane
tight membrane
tight
leather
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
Application number
DESCH83844D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CURT SCHAEFER
Original Assignee
CURT SCHAEFER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CURT SCHAEFER filed Critical CURT SCHAEFER
Priority to DESCH83844D priority Critical patent/DE487270C/en
Application granted granted Critical
Publication of DE487270C publication Critical patent/DE487270C/en
Expired legal-status Critical Current

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)
  • Woven Fabrics (AREA)

Description

Gasdichte Membran Die Erfindung bezieht sich auf trockne Membrangasmesser und sonstige mit als Membran ausgebildeter beweglicher Wand versehene Vorrichtungen und besteht in der im Anspruch gekennzeichneten und im folgenden n,'ä;h.er erläuterten besonderen Ausbildung der Membran.Gas-tight membrane The invention relates to dry membrane gas meters and other devices provided with a movable wall designed as a membrane and consists in the one characterized in the claim and explained in the following n, 'ä; h.er special training of the membrane.

Bei Vorrichtungen der bezeichneten Art besteht die Membran im allgemeinen aus Leder, das geölt wird, um es recht geschmeidig zu machen. Die Nachteile solcher Membranen sind bekannt. Sie bestehen hauptsächlich darin, daß. das Leder mit der Zeit brüchig wird und reißt, und daß insbesondere bei Gasmessern der Meßraum durch Schrumpfen geändert wird.In devices of the type indicated, the membrane generally consists made of leather that is oiled to make it quite supple. The disadvantages of such Membranes are known. They mainly consist in that. the leather with the Time becomes brittle and tears, and that, especially with gas meters, the measuring space through Shrinkage is changed.

Es ist bereits vorgeschlagen worden, an Stelle der Ledermembran bei Gasmessern eine Membran zu verwenden, die aus einem Geflecht ;aus pflanzlicher oder tierischer Faser besteht, das durch eine geeignete Behandlung gasdicht gemacht ist. Diese Membranen haben sich aber auch nicht dauernd bewährt, weil das Geflecht leicht durch das Gas, 'insbesondere durch solches, dem Koksgas beigefügt ist, zerstört wird.It has already been suggested to be used in place of the leather membrane Gas knives use a membrane made of a mesh; made of vegetable or animal fiber, which is made gas-tight by a suitable treatment. However, these membranes have not proven their worth over the long term either, because the mesh is light destroyed by the gas, in particular by such that is added to the coke gas will.

Die Membran gemäß der Erfindung soll diese Nachteile vermeiden. Bei 'br besteht das Geflecht oder Gewebe aus Asbestfasern oder Metalldrähten, deren Stärke dem Durchmesser der Membran angepaßt ist. Es wird durch Tauchen in flüssiges Metall, durch Verbinden mit dümien Metallfolien oder auf chemischem Wege, z. B. durch Verkupfern, oder auf kaltem Wege, z. B. durch das bekannte Spritzverfahren, oder durch einfaches Dichtwalzen oder durch gasunempfindliche Imprägnierungsmittel vollständig gasdicht gemacht. Dadurch entsteht eine Membran von großer Festigkeit und langer Lebensdauer. Das anorganische Gewebe oder Geflecht, trotzdem es schwer zerreißbar, läßt sich durch entsprechende Bearbeitung in jede gewünschte balgartige Form bringen. Außerdem hat eine solche Membran noch den Vorteil, daß sie säurebeständig bleibt, sobald entsprechende Metallegierungen bei der H@erstellung verwendet werden. Auch größere Temperaturunterschiede können ihre einwandfreie Tätigkeit nicht beeinträchtigen, weil ein Dehnen und Zusammenziehen des Materials kaum in Betracht kommt.The membrane according to the invention is intended to avoid these disadvantages. at 'br the braid or fabric consists of asbestos fibers or metal wires whose Strength is adapted to the diameter of the membrane. It is made by dipping in liquid Metal, by bonding with thin metal foils or by chemical means, e.g. B. by copper plating, or by cold means, e.g. B. by the well-known spraying process, or by simple sealing rollers or by gas-insensitive impregnation agents made completely gastight. This creates a membrane of great strength and long service life. The inorganic fabric or braid, despite it being heavy tearable, can be made into any bellows-like shape by appropriate processing Bring shape. In addition, such a membrane has the advantage that it is acid-resistant remains as soon as the corresponding metal alloys are used in the manufacture. Even larger temperature differences cannot impair their proper functioning, because stretching and contraction of the material is hardly an option.

Claims (1)

PATENTANSPRUCH: Aus einem Gewebe bestehende gasdichte Membran, insbesondere für trockne Gasmesser, gekennzeichnet durch .ein Ge. webe aus .Asbestfaser oder Metalldraht. PATENT CLAIM: A gas-tight membrane consisting of a fabric, especially for dry gas meters, characterized by .ein Ge. weave from asbestos fiber or metal wire.
DESCH83844D 1927-09-10 1927-09-10 Gas-tight membrane Expired DE487270C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH83844D DE487270C (en) 1927-09-10 1927-09-10 Gas-tight membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH83844D DE487270C (en) 1927-09-10 1927-09-10 Gas-tight membrane

Publications (1)

Publication Number Publication Date
DE487270C true DE487270C (en) 1929-12-04

Family

ID=7442826

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH83844D Expired DE487270C (en) 1927-09-10 1927-09-10 Gas-tight membrane

Country Status (1)

Country Link
DE (1) DE487270C (en)

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