[go: up one dir, main page]

GB1016326A - Combined check and venting valve - Google Patents

Combined check and venting valve

Info

Publication number
GB1016326A
GB1016326A GB629864A GB629864A GB1016326A GB 1016326 A GB1016326 A GB 1016326A GB 629864 A GB629864 A GB 629864A GB 629864 A GB629864 A GB 629864A GB 1016326 A GB1016326 A GB 1016326A
Authority
GB
United Kingdom
Prior art keywords
ratio
coils
balance
coil
tan
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
GB629864A
Inventor
Ernest Walter Geipel
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.)
Crane Ltd
Original Assignee
Crane Ltd
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 Crane Ltd filed Critical Crane Ltd
Priority to GB629864A priority Critical patent/GB1016326A/en
Publication of GB1016326A publication Critical patent/GB1016326A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/301—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers only shut-off valves, i.e. valves without additional means
    • F16K1/303—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers only shut-off valves, i.e. valves without additional means with a valve member, e.g. stem or shaft, passing through the seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/02—Devices, e.g. valves, for venting or aerating enclosures the enclosure being itself a valve, tap, or cock

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

1,016,326. Electric measuring bridges. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 26, 1964 [Nov.26, 1963], No. 46680/63. Heading G1U. An A. C. electrical bridge network comprises four arms constituted respectively by a specimen capacitor X whose capacitance and loss tangent are to be measured, a variable standard capacitor S, the series connection of a variable resistor R and a first ratio coil r1 and a second ratio coil r2 inductively coupled with the first coil. A further capacitor C is connected in shunt with R, r1 and at least part of r2, and a null detector is coupled at N to the two ratio coils. The second ratio coil may consist of an arrangement of tapped coils (Fig. 2 not shown). To balance the arrangement, the turns ratio of the two coils r1 and r2 are adjusted for capacitance balance, and the ratios of C and R are adjusted for quadrature balance. At balance, the loss tangent in the specimen is given by tan # = tan 2# where tan # = wRC w being the supply frequency. This result shows that the loss tangent can be derived with no zero error due to the D.C. resistances of the ratio coils.
GB629864A 1964-02-14 1964-02-14 Combined check and venting valve Expired GB1016326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB629864A GB1016326A (en) 1964-02-14 1964-02-14 Combined check and venting valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB629864A GB1016326A (en) 1964-02-14 1964-02-14 Combined check and venting valve

Publications (1)

Publication Number Publication Date
GB1016326A true GB1016326A (en) 1966-01-12

Family

ID=9811957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB629864A Expired GB1016326A (en) 1964-02-14 1964-02-14 Combined check and venting valve

Country Status (1)

Country Link
GB (1) GB1016326A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163758A1 (en) * 1970-12-23 1972-07-13 Ekman B
US5103860A (en) * 1990-08-23 1992-04-14 Morris Arnold D Gas cylinder safety valve
US5178240A (en) * 1985-05-23 1993-01-12 Enidine Incorporated Adjustable double-acting damper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163758A1 (en) * 1970-12-23 1972-07-13 Ekman B
US5178240A (en) * 1985-05-23 1993-01-12 Enidine Incorporated Adjustable double-acting damper
US5103860A (en) * 1990-08-23 1992-04-14 Morris Arnold D Gas cylinder safety valve

Similar Documents

Publication Publication Date Title
Cutkosky et al. The precision measurement of transformer ratios
US3445763A (en) Digital reading impedance measuring arrangement
GB1235646A (en) Impedance measuring device
US2551291A (en) Electric voltage, current, and phaseangle measuring instrument
GB1016326A (en) Combined check and venting valve
GB998413A (en) Improvements in variable impedance devices
US2672588A (en) Phasemeter
So et al. A direct-reading ac comparator bridge for resistance measurement at power frequencies
US3617863A (en) Constant amplitude-variable phase circuit
GB556607A (en) Improvements in or relating to electrical measuring apparatus
US3697872A (en) Circuit for measuring the power consumption of three phase loads
US3044009A (en) Variably coupled rotary transformer with compensating circuits
GB1254827A (en) Alternating current apparatus for measuring capacitance or comparing voltages
US3172038A (en) Double bridge circuit for measuring resistance of energized alternating current apparatus
GB1250155A (en)
GB1025353A (en) Improvements in or relating to the measurement of phase difference between alternating voltages
GB1083339A (en) Improvements relating to a.c. bridges
US3154735A (en) System for measuring phase and power factors in electric circuits including harmonicproducing means
GB1204894A (en) Electric bridge circuit for measuring the impedances of inductors
GB1017469A (en) Impedance network for a.c. bridge circuits
US2426383A (en) Electrical measuring apparatus
Romanowski et al. An absolute determination of resistance
SU419798A1 (en) MEASURING POWER AND COEFFICIENT
SU53839A1 (en) Device for measuring resistance
SU455286A1 (en) Bridge with indukti? About bound shoulders