GB628574A - Improvements in automatic burglar and fire alarms - Google Patents

Improvements in automatic burglar and fire alarms

Info

Publication number
GB628574A
GB628574A GB26447/46A GB2644746A GB628574A GB 628574 A GB628574 A GB 628574A GB 26447/46 A GB26447/46 A GB 26447/46A GB 2644746 A GB2644746 A GB 2644746A GB 628574 A GB628574 A GB 628574A
Authority
GB
United Kingdom
Prior art keywords
dialling
arm
lever
repetition
dial
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
GB26447/46A
Other languages
English (en)
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
Priority to FR956829D priority Critical patent/FR956829A/fr
Application filed by Individual filed Critical Individual
Priority to GB26447/46A priority patent/GB628574A/en
Priority to US786291A priority patent/US2537599A/en
Publication of GB628574A publication Critical patent/GB628574A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Emergency Alarm Devices (AREA)
GB26447/46A 1946-09-03 1946-09-03 Improvements in automatic burglar and fire alarms Expired GB628574A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR956829D FR956829A (enrdf_load_stackoverflow) 1946-09-03
GB26447/46A GB628574A (en) 1946-09-03 1946-09-03 Improvements in automatic burglar and fire alarms
US786291A US2537599A (en) 1946-09-03 1947-11-15 Automatic burglar and fire alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26447/46A GB628574A (en) 1946-09-03 1946-09-03 Improvements in automatic burglar and fire alarms

Publications (1)

Publication Number Publication Date
GB628574A true GB628574A (en) 1949-08-31

Family

ID=10243754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26447/46A Expired GB628574A (en) 1946-09-03 1946-09-03 Improvements in automatic burglar and fire alarms

Country Status (3)

Country Link
US (1) US2537599A (enrdf_load_stackoverflow)
FR (1) FR956829A (enrdf_load_stackoverflow)
GB (1) GB628574A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118366270A (zh) * 2024-06-20 2024-07-19 厦门安瑞祥科技有限公司 一种基于互联网的智慧消防报警装置及其方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB682276A (en) * 1950-06-07 1952-11-05 Samuel Dunseith Mckellen Improvements in or relating to automatic alarm devices
US2768239A (en) * 1953-05-11 1956-10-23 Elmer E Foster Alarm system
US2830119A (en) * 1954-02-19 1958-04-08 John P Zimmerman Emergency alarm and reporting system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627612A (en) * 1922-12-13 1927-05-10 William J Luse Alarm system
NL61751C (enrdf_load_stackoverflow) * 1936-11-04
BE426001A (enrdf_load_stackoverflow) * 1937-02-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118366270A (zh) * 2024-06-20 2024-07-19 厦门安瑞祥科技有限公司 一种基于互联网的智慧消防报警装置及其方法

Also Published As

Publication number Publication date
FR956829A (enrdf_load_stackoverflow) 1950-02-08
US2537599A (en) 1951-01-09

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