GB800005A - Improved method and apparatus for measuring the rate of flow of fluids and detecting leaks in the sheaths of electric cables - Google Patents

Improved method and apparatus for measuring the rate of flow of fluids and detecting leaks in the sheaths of electric cables

Info

Publication number
GB800005A
GB800005A GB1953555A GB1953555A GB800005A GB 800005 A GB800005 A GB 800005A GB 1953555 A GB1953555 A GB 1953555A GB 1953555 A GB1953555 A GB 1953555A GB 800005 A GB800005 A GB 800005A
Authority
GB
United Kingdom
Prior art keywords
cable
flow
control valve
fine control
rotameter
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
GB1953555A
Inventor
Eric John Hooker
Lionel Henry Smith
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.)
STHN UNITED TELEPHONE CABLES
Original Assignee
STHN UNITED TELEPHONE CABLES
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 STHN UNITED TELEPHONE CABLES filed Critical STHN UNITED TELEPHONE CABLES
Priority to GB1953555A priority Critical patent/GB800005A/en
Publication of GB800005A publication Critical patent/GB800005A/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
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2838—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for cables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measuring Volume Flow (AREA)

Abstract

800,005. Measuring flow rate. SOUTHERN UNITED TELEPHONE CABLES, Ltd. July 6, 1956 [July 6, 1955], No. 19535/55. Class 69(1). A system for measuring low rates of flow of fluid comprises a flow-meter, a fine control valve, a connection between the inlet side of the meter and a source of fluid pressure, a connection between the outlet side of the meter and the fine control valve, the outlet of which is open to the atmosphere or is connected to a low pressure part of the system and a connection between the outlet side of the meter and a receiver. As shown applied to apparatus for finding the position of a leak in a sheathed cable, high-pressure gas from a cylinder 1 is passed through an air filter 2, a pressure regulator 3 and a main stopcock 4 to a cable 5. Two Rotameters R and R2 are connected in parallel across the stop-cock 4 and a stop-cock 9 followed by a Rotameter R3 and a fine control valve 10 are connected to a branch in the line from the main stop-cock to the cable. An apparatus as above is connected to each end of a cable which is leaking and when a steady state has been reached at both ends of the cable, the cock 9 and fine control valve 10 are adjusted to give a clear reading on Rotameter R3. The required flow rate is the difference between the readings of Rotameters R2 and R3. Rotameter R1 has a different scale range from that of R2 and is used if the conditions are more suitable to the use of that scale. The distance of the leak from either end of the cable may be calculated from the flow rates. Rotameter R3 may be dispensed with, the fine control valve being set to a predetermined flow rate and the difference between that flow and the flow shown by R2 with the cable in the circuit giving the required flow rate.
GB1953555A 1955-07-06 1955-07-06 Improved method and apparatus for measuring the rate of flow of fluids and detecting leaks in the sheaths of electric cables Expired GB800005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1953555A GB800005A (en) 1955-07-06 1955-07-06 Improved method and apparatus for measuring the rate of flow of fluids and detecting leaks in the sheaths of electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1953555A GB800005A (en) 1955-07-06 1955-07-06 Improved method and apparatus for measuring the rate of flow of fluids and detecting leaks in the sheaths of electric cables

Publications (1)

Publication Number Publication Date
GB800005A true GB800005A (en) 1958-08-20

Family

ID=10130999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1953555A Expired GB800005A (en) 1955-07-06 1955-07-06 Improved method and apparatus for measuring the rate of flow of fluids and detecting leaks in the sheaths of electric cables

Country Status (1)

Country Link
GB (1) GB800005A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304546A (en) * 1964-11-16 1967-02-14 Puregas Equipment Corp Leak detector for pressurized cable
MD4171C1 (en) * 2011-10-10 2013-01-31 Государственный Университет Молд0 Gas mixer-dispenser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304546A (en) * 1964-11-16 1967-02-14 Puregas Equipment Corp Leak detector for pressurized cable
MD4171C1 (en) * 2011-10-10 2013-01-31 Государственный Университет Молд0 Gas mixer-dispenser

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