DE137721C - - Google Patents

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Publication number
DE137721C
DE137721C DE1902137721D DE137721DD DE137721C DE 137721 C DE137721 C DE 137721C DE 1902137721 D DE1902137721 D DE 1902137721D DE 137721D D DE137721D D DE 137721DD DE 137721 C DE137721 C DE 137721C
Authority
DE
Germany
Prior art keywords
valve
small
knife
switching
water meter
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
DE1902137721D
Other languages
German (de)
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 filed Critical
Application granted granted Critical
Publication of DE137721C publication Critical patent/DE137721C/de
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F7/00Volume-flow measuring devices with two or more measuring ranges; Compound meters

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Das in Patent 135190 beschriebene Umschaltventil für Wassermesserverbindungen bedarf zum besseren Functioniren eines mit dem Ausgang zum grofsen Wassermesser durch einen Kanal in Verbindung stehenden Bodenventils des in beiliegender Zeichnung mit k bezeichneten kleinen Kegelventils.The change-over valve for water meter connections described in patent 135190 requires a bottom valve connected to the outlet to the large water meter through a channel of the small cone valve marked k in the accompanying drawing for better functioning.

Dasselbe ist mittelst der Stange 5 mit der Ventilscheibe ν fest verbunden; es ist im Querschnitt kleiner als die Oeffnung ö in dem Ventilring r, so dafs bei Wasserentnahme durch den kleinen Messer die durch die Druckdifferenz verursachte Auftriebbelastung der Scheibe ν stets gröfser ist als die Gegenbelastung durch den Ventilkegel k. The same is firmly connected to the valve disk ν by means of the rod 5; its cross-section is smaller than the opening ö in the valve ring r, so that when water is withdrawn through the small knife, the buoyancy load on the disc ν caused by the pressure difference is always greater than the counter-load caused by the valve cone k.

Bei der Umschaltung vom kleinen zum grofsen Wassermesser wird das Ventil k geöffnet, bevor durch das Schliefsen der Oeffnung ö der Weg zum kleinen Wassermesser gesperrt ist; es wird dadurch die momentane völlige Sperrung des Durchflusses beseitigt. Ferner bewirkt das offene Bodenventil ein besseres rückwärtiges Umschalten vom grofsen zum kleinen Wassermesser.When switching from the small to the large water meter, the valve k is opened before the path to the small water meter is blocked by closing the opening ö; this removes the current complete blockage of the flow. Furthermore, the open bottom valve makes it easier to switch backwards from the large to the small water meter.

Claims (1)

Patent-Anspruch :
Umschaltventil für Wassermesserverbindungen nach Patent 135190, dadurch gekennzeichnet, dafs mit dem das Ringventil (r) schliefsenden Tellerventil (ν) ein durch einen Kanal mit dem Ausgang zum grofsen Messer in Verbindung stehendes Bodenkegelventil (k) fest verbunden ist, welches einen kleineren Querschnitt als die Oeffnung (0) im Ringventil (r) besitzt und welches beim Umschalten vom kleinen zum grofsen Messer geöffnet wird, bevor der Durchflufs zum kleinen Messer gesperrt ist, und bei der Umschaltung vom grofsen zum kleinen Messer sich erst schliefst, wenn der Zugang zum kleinen Messer wieder offen ist.
Patent claim:
Changeover valve for water meter connections according to patent 135190, characterized in that with the poppet valve (ν) which closes the ring valve (r ) there is firmly connected a bottom cone valve (k) which is connected through a channel to the outlet to the large meter and which has a smaller cross section than the Has opening (0) in the ring valve (r) and which is opened when switching from the small to the large knife, before the flow to the small knife is blocked, and when switching from the large to the small knife does not close until there is access to the small knife is open again.
Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
DE1902137721D 1902-02-21 1902-05-29 Expired DE137721C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE135190T 1902-02-21
DE137721T 1902-05-29

Publications (1)

Publication Number Publication Date
DE137721C true DE137721C (en) 1903-01-02

Family

ID=34888302

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1902137721D Expired DE137721C (en) 1902-02-21 1902-05-29

Country Status (1)

Country Link
DE (1) DE137721C (en)

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