GB693989A - An improved relay device - Google Patents

An improved relay device

Info

Publication number
GB693989A
GB693989A GB29789/50A GB2978950A GB693989A GB 693989 A GB693989 A GB 693989A GB 29789/50 A GB29789/50 A GB 29789/50A GB 2978950 A GB2978950 A GB 2978950A GB 693989 A GB693989 A GB 693989A
Authority
GB
United Kingdom
Prior art keywords
relay
capacitor
resistance
dec
pulse
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
GB29789/50A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB693989A publication Critical patent/GB693989A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/52—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of gas-filled tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/48—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0048—Tubes with a main cathode
    • H01J2893/0058—Grids; Auxiliary internal or external electrodes

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

693,989. Determining physical quantities. LANDIS & GYR AKT.-GES. Dec. 5, 1950 [Dec. 6, 1949], No. 29789/50. Class 37. [Also in Groups XL (b) and XL (c)] A relay is arranged to reverse its contacts at each of two values of a physical quantity by connecting it in a circuit substantially as shown, comprising a resistance 3 sensitive to the physical quantity. The quantity may be of ionization, heat, moisture, pressure, electromagnetic or mechanical waves, chemical action or corpuscular rays. If the value of resistance 3 decreases sufficiently capacitor 5 charges to such voltage that a gas tube 7 fires and a pulse of current then flows from the capacitor to change over the relay. Contact 10 of the relay now connects to the other side of the D.C. source 1, 2 and if the value of resistance 3 increases sufficiently the voltage across tube 14 will cause it to fire and a pulse of current will flow from capacitor 12 to restore the relay. The difference between the changeover values is determined by resistor 13. Further contacts of the relay may operate a signalling circuit.
GB29789/50A 1949-12-06 1950-12-05 An improved relay device Expired GB693989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH693989X 1949-12-06

Publications (1)

Publication Number Publication Date
GB693989A true GB693989A (en) 1953-07-08

Family

ID=4529475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29789/50A Expired GB693989A (en) 1949-12-06 1950-12-05 An improved relay device

Country Status (6)

Country Link
BE (1) BE499834A (en)
CH (1) CH279088A (en)
DE (1) DE949511C (en)
FR (1) FR1029110A (en)
GB (1) GB693989A (en)
NL (2) NL151553B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167950B (en) * 1961-06-23 1964-04-16 Siemens Ag Three-point controller with dead zone

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492587C (en) * 1928-01-19 1930-03-01 Hans Richter Dr Device for the detection of weak currents
DE724252C (en) * 1935-12-20 1942-08-22 Ing Jan Zalabak Automatic electrical control device using a glow discharge path
DE698100C (en) * 1936-02-09 1940-11-01 Licht Und Kraft Akt Ges Locking device for roll-up curtains with drawstring or cord

Also Published As

Publication number Publication date
FR1029110A (en) 1953-05-29
NL81646C (en)
DE949511C (en) 1956-09-20
NL151553B (en)
BE499834A (en)
CH279088A (en) 1951-11-15

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