GB1420412A - Self-monitoring pressure or temperature sensing device - Google Patents

Self-monitoring pressure or temperature sensing device

Info

Publication number
GB1420412A
GB1420412A GB1128973A GB1128973A GB1420412A GB 1420412 A GB1420412 A GB 1420412A GB 1128973 A GB1128973 A GB 1128973A GB 1128973 A GB1128973 A GB 1128973A GB 1420412 A GB1420412 A GB 1420412A
Authority
GB
United Kingdom
Prior art keywords
bellows
pressure
gas
monitoring
expansion member
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
GB1128973A
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.)
CENTRA BUERKLE KG ALBERT
Original Assignee
CENTRA BUERKLE KG ALBERT
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
Priority claimed from DE19722211126 external-priority patent/DE2211126A1/en
Priority claimed from DE19732300346 external-priority patent/DE2300346B2/en
Application filed by CENTRA BUERKLE KG ALBERT filed Critical CENTRA BUERKLE KG ALBERT
Publication of GB1420412A publication Critical patent/GB1420412A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2671—Means to detect leaks in the pressure sensitive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
    • G01K1/24—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature by means of compounded strips or plates, e.g. by bimetallic strips
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

1420412 Valves ZENTRA ALBERT BURKLE KG 8 March 1973 [8 March 1972 4 Jan 1973] 11289/73 Heading F2V [Also in Divisions G1 and H1] A self-monitoring pressure or temperature sensing device to actuate, e.g. a valve, comprises a hollow expansion member 11 containing a fluid the pressure of which is dependent on the pressure or temperature being sensed and having a movable wall portion 19 forming a partition between the interior of the expansion member and a hermetically sealed chamber 10 containing a gas at higher pressure than the fluid in the expansion member 11, the wall 19 being spring- loaded to urge it in a direction to reduce the volume of the sealed chamber 10, an indication being produced when any wall of the sealed chamber 10 is punctured. The fluid in the expansion member 11 is a gas or a liquid for pressure monitoring, or a gas, a liquid, a wax, a liquid-vapour system, or a gas in conjunction with an adsorptive substance, for temperature monitoring. Fig. 3 shows a device for regulating or monitoring pneumatic or hydraulic pressure in a pipe 40. A bellows 14<SP>1</SP> in the pipe is connected by a capillary tube 13 to a bellows 12 in a sealed vessel 10, the system 12, 13, 14<SP>1</SP> forming the expansion member 11. The bellows 12, 14<SP>1</SP> contain compression springs 20, 47. The free end 19 of bellows 12 acts via a lever 22 on a member 24, e.g. a valve controlling member of a valve for the pipe 40. The lever 22 is loaded by a compression spring 23. To avoid ambient temperature influence on the apparatus, the gas 16 in the vessel 10 is maintained at constant temperature by a bimetallic thermostat 42 controlling a heat element 43. If a leak in tube 13 or bellows 14<SP>1</SP> allows the bellows 14<SP>1</SP>, 12 to collapse, the lever 22 trips an alarm or safety switch 41. If a leak in the bellows 12 or vessel 10 occurs, the lever 22 is moved to an extreme (chain dotted) safety position to close the valve. Fig. 1, not shown, relates to a similar apparatus for temperature monitoring, the ambient temperature compensation being omitted in this case.
GB1128973A 1972-03-08 1973-03-08 Self-monitoring pressure or temperature sensing device Expired GB1420412A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722211126 DE2211126A1 (en) 1972-03-08 1972-03-08 SELF-MONITORING ACTUATION DEVICE
DE19732300346 DE2300346B2 (en) 1973-01-04 1973-01-04 Actuator

Publications (1)

Publication Number Publication Date
GB1420412A true GB1420412A (en) 1976-01-07

Family

ID=25762855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1128973A Expired GB1420412A (en) 1972-03-08 1973-03-08 Self-monitoring pressure or temperature sensing device

Country Status (5)

Country Link
CH (1) CH549258A (en)
FR (1) FR2175203B1 (en)
GB (1) GB1420412A (en)
IT (1) IT981179B (en)
NL (1) NL7303223A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147390A (en) * 1983-09-29 1985-05-09 United Gas Industries Ltd Control mechanisms
CN103376167A (en) * 2012-04-19 2013-10-30 深圳市泰士特科技有限公司 Temperature controller compensation device for large-sized power transformer
CN104465218A (en) * 2013-09-24 2015-03-25 珠海格力电器股份有限公司 Accelerated drive device and method for pressure temperature controller

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000337A1 (en) * 1977-12-02 1979-06-14 United Gas Industries Ltd Bellows-operated devices
DE2857202A1 (en) * 1977-12-02 1981-01-08 United Gas Industries Ltd BELLOWS-OPERATED DEVICES
CN113959573B (en) * 2021-10-25 2023-11-17 安徽春辉仪表线缆集团有限公司 Electric contact bimetal thermometer capable of giving alarm when power is off

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR765592A (en) * 1933-03-09 1934-06-12 Edgar B Frank Ets Improvement in altimetric capsules
US2120929A (en) * 1935-03-18 1938-06-14 Clifford Mfg Co Thermostatic unit
US2290093A (en) * 1939-10-31 1942-07-14 Wilcolator Co Snap acting device
FR1506322A (en) * 1966-05-11 1967-12-22 Meci Device for the transmission of a mechanical quantity through the wall of an enclosure
CH528142A (en) * 1971-02-24 1972-09-15 Bbc Brown Boveri & Cie Pressure dependent temperature compensated switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147390A (en) * 1983-09-29 1985-05-09 United Gas Industries Ltd Control mechanisms
CN103376167A (en) * 2012-04-19 2013-10-30 深圳市泰士特科技有限公司 Temperature controller compensation device for large-sized power transformer
CN103376167B (en) * 2012-04-19 2015-11-25 深圳市泰士特科技股份有限公司 Large-scale power transformer temperature controller compensation device
CN104465218A (en) * 2013-09-24 2015-03-25 珠海格力电器股份有限公司 Accelerated drive device and method for pressure temperature controller

Also Published As

Publication number Publication date
IT981179B (en) 1974-10-10
FR2175203A1 (en) 1973-10-19
NL7303223A (en) 1973-09-11
CH549258A (en) 1974-05-15
FR2175203B1 (en) 1977-02-04

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees