CH376808A - High temperature sensitive signaling installation - Google Patents

High temperature sensitive signaling installation

Info

Publication number
CH376808A
CH376808A CH669861A CH669861A CH376808A CH 376808 A CH376808 A CH 376808A CH 669861 A CH669861 A CH 669861A CH 669861 A CH669861 A CH 669861A CH 376808 A CH376808 A CH 376808A
Authority
CH
Switzerland
Prior art keywords
high temperature
temperature sensitive
sensitive signaling
signaling installation
installation
Prior art date
Application number
CH669861A
Other languages
French (fr)
Inventor
Weston Wells Ralph
Rippon Chen Peter
Original Assignee
Graviner Manufacturing Co
Wilkinson Sword 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 Graviner Manufacturing Co, Wilkinson Sword Ltd filed Critical Graviner Manufacturing Co
Publication of CH376808A publication Critical patent/CH376808A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
CH669861A 1960-06-09 1961-06-08 High temperature sensitive signaling installation CH376808A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2025360 1960-06-09
GB4239160 1960-12-09

Publications (1)

Publication Number Publication Date
CH376808A true CH376808A (en) 1964-04-15

Family

ID=26254557

Family Applications (1)

Application Number Title Priority Date Filing Date
CH669861A CH376808A (en) 1960-06-09 1961-06-08 High temperature sensitive signaling installation

Country Status (5)

Country Link
BE (1) BE604675A (en)
CH (1) CH376808A (en)
DE (1) DE1247180B (en)
NL (1) NL265773A (en)
SE (1) SE312089B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149167B (en) * 1983-11-04 1987-04-08 Graviner Ltd Electrical circuit arrangements in fire alarms

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944111C (en) * 1953-04-03 1956-06-07 Anders Mathisen Temperature change detector
DE960320C (en) * 1954-05-07 1957-03-21 Graviner Manufacturing Co Temperature sensors, as well as methods and devices for their production
NL213762A (en) * 1956-01-17

Also Published As

Publication number Publication date
BE604675A (en) 1961-10-02
NL265773A (en) 1900-01-01
DE1247180B (en) 1967-08-10
SE312089B (en) 1969-06-30

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