GB741484A - Improvements in or relating to gas flow responsive electric switch devices - Google Patents

Improvements in or relating to gas flow responsive electric switch devices

Info

Publication number
GB741484A
GB741484A GB261853A GB261853A GB741484A GB 741484 A GB741484 A GB 741484A GB 261853 A GB261853 A GB 261853A GB 261853 A GB261853 A GB 261853A GB 741484 A GB741484 A GB 741484A
Authority
GB
United Kingdom
Prior art keywords
gas flow
lever
relating
electric switch
switch devices
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
GB261853A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB261853A priority Critical patent/GB741484A/en
Publication of GB741484A publication Critical patent/GB741484A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
    • G01P13/0026—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using deflection of baffle-plates
    • G01P13/0033—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using deflection of baffle-plates with electrical coupling to the indicating device
    • 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
    • H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane

Landscapes

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

Abstract

741,484. Magnetic switches. HAYNES, J. K. Jan. 29, 1954 [Jan. 29, 1953], No. 2618/53. Class 38(5) A switching device operable by the flow of gas through a conduit a comprises a pivoted see-saw lever e carrying a permanent magnet f and a vane g and having an adjustable counter-balance weight h. A further pivoted see-saw lever n arranged on the other side of a non-magnetic wall o carries a mercury switch j and a permanent magnet k and has a counter-balance weight m. The arrangement is such that when the lever e is moved counter-clockwise by the gas flow the lever n is moved clockwise by the magnets f, k and the switch j makes or breaks a circuit. On cessation of the gas flow the device is restored to its original condition.
GB261853A 1953-01-29 1953-01-29 Improvements in or relating to gas flow responsive electric switch devices Expired GB741484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB261853A GB741484A (en) 1953-01-29 1953-01-29 Improvements in or relating to gas flow responsive electric switch devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB261853A GB741484A (en) 1953-01-29 1953-01-29 Improvements in or relating to gas flow responsive electric switch devices

Publications (1)

Publication Number Publication Date
GB741484A true GB741484A (en) 1955-12-07

Family

ID=9742734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB261853A Expired GB741484A (en) 1953-01-29 1953-01-29 Improvements in or relating to gas flow responsive electric switch devices

Country Status (1)

Country Link
GB (1) GB741484A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113189A (en) * 1960-09-21 1963-12-03 Michigan Oven Co Fluid flow responsive switch apparatus
US3992598A (en) * 1974-12-04 1976-11-16 Afton Incorporated Airflow velocity switch
US4143255A (en) * 1977-09-19 1979-03-06 Jack Herscovitz Device for detecting fluid flow
US4252088A (en) * 1975-09-26 1981-02-24 Frisby Gerald R Differential switch for detecting leaks
GB2258934A (en) * 1991-06-14 1993-02-24 Cqr Security Components Ltd Alarm assembly
FR2806208A1 (en) * 2000-03-13 2001-09-14 Jacques Jumeau Sealed operating mechanism producing a sharp and rapid transition for use in an electric switch, uses two isolated chambers each containing snap action switch with motion coupled by magnets on each switch
DE102016110221A1 (en) * 2016-06-02 2017-12-07 Maschinenfabrik Reinhausen Gmbh On-load tap-changer head and on-load tap-changer with on-load tap-changer head

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113189A (en) * 1960-09-21 1963-12-03 Michigan Oven Co Fluid flow responsive switch apparatus
US3992598A (en) * 1974-12-04 1976-11-16 Afton Incorporated Airflow velocity switch
US4252088A (en) * 1975-09-26 1981-02-24 Frisby Gerald R Differential switch for detecting leaks
US4143255A (en) * 1977-09-19 1979-03-06 Jack Herscovitz Device for detecting fluid flow
GB2258934A (en) * 1991-06-14 1993-02-24 Cqr Security Components Ltd Alarm assembly
GB2258934B (en) * 1991-06-14 1995-05-10 Cqr Security Components Ltd Alarm assembly
FR2806208A1 (en) * 2000-03-13 2001-09-14 Jacques Jumeau Sealed operating mechanism producing a sharp and rapid transition for use in an electric switch, uses two isolated chambers each containing snap action switch with motion coupled by magnets on each switch
DE102016110221A1 (en) * 2016-06-02 2017-12-07 Maschinenfabrik Reinhausen Gmbh On-load tap-changer head and on-load tap-changer with on-load tap-changer head
US11177068B2 (en) 2016-06-02 2021-11-16 Maschinenfabrik Reinhausen Gmbh On-load tap changer head and on-load tap changer having an on-load tap changer head

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