GB863132A - Improvements relating to electrical circuits adapted for use with temperature responsive devices - Google Patents

Improvements relating to electrical circuits adapted for use with temperature responsive devices

Info

Publication number
GB863132A
GB863132A GB27750/58A GB2775058A GB863132A GB 863132 A GB863132 A GB 863132A GB 27750/58 A GB27750/58 A GB 27750/58A GB 2775058 A GB2775058 A GB 2775058A GB 863132 A GB863132 A GB 863132A
Authority
GB
United Kingdom
Prior art keywords
temperature
temperature responsive
output
operate
transistor
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
GB27750/58A
Other languages
English (en)
Inventor
Arthur John Bennett
Leslie Thorpe Thurlby
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.)
Wilkinson Sword Ltd
Graviner Manufacturing Co Ltd
Original Assignee
Wilkinson Sword Ltd
Graviner Manufacturing Co 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 Wilkinson Sword Ltd, Graviner Manufacturing Co Ltd filed Critical Wilkinson Sword Ltd
Priority to GB27750/58A priority Critical patent/GB863132A/en
Priority to DEG27825A priority patent/DE1120945B/de
Publication of GB863132A publication Critical patent/GB863132A/en
Priority to JP1694663A priority patent/JPS3816946B1/ja
Expired legal-status Critical Current

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)
  • Emergency Alarm Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Thermally Actuated Switches (AREA)
GB27750/58A 1958-08-29 1958-08-29 Improvements relating to electrical circuits adapted for use with temperature responsive devices Expired GB863132A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB27750/58A GB863132A (en) 1958-08-29 1958-08-29 Improvements relating to electrical circuits adapted for use with temperature responsive devices
DEG27825A DE1120945B (de) 1958-08-29 1959-08-28 Schaltanordnung fuer ein elektrisches Anzeige-, Warn- oder Kontrollgeraet
JP1694663A JPS3816946B1 (da) 1958-08-29 1963-08-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27750/58A GB863132A (en) 1958-08-29 1958-08-29 Improvements relating to electrical circuits adapted for use with temperature responsive devices

Publications (1)

Publication Number Publication Date
GB863132A true GB863132A (en) 1961-03-15

Family

ID=10264668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27750/58A Expired GB863132A (en) 1958-08-29 1958-08-29 Improvements relating to electrical circuits adapted for use with temperature responsive devices

Country Status (3)

Country Link
JP (1) JPS3816946B1 (da)
DE (1) DE1120945B (da)
GB (1) GB863132A (da)

Also Published As

Publication number Publication date
JPS3816946B1 (da) 1963-09-04
DE1120945B (de) 1961-12-28

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