GB167361A - Improvements relating to electric burglar and like alarms - Google Patents

Improvements relating to electric burglar and like alarms

Info

Publication number
GB167361A
GB167361A GB1684720A GB1684720A GB167361A GB 167361 A GB167361 A GB 167361A GB 1684720 A GB1684720 A GB 1684720A GB 1684720 A GB1684720 A GB 1684720A GB 167361 A GB167361 A GB 167361A
Authority
GB
United Kingdom
Prior art keywords
circuit
alarms
improvements relating
armature
electromagnet
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
GB1684720A
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.)
HENRY JOHN TIBBLES
THOMAS GUNN Ltd
Original Assignee
HENRY JOHN TIBBLES
THOMAS GUNN 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 HENRY JOHN TIBBLES, THOMAS GUNN Ltd filed Critical HENRY JOHN TIBBLES
Priority to GB1684720A priority Critical patent/GB167361A/en
Publication of GB167361A publication Critical patent/GB167361A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

167,361. Tibbles, H. J., and Gunn, Ltd., T. June 22, 1920. Burglar and like alarms.-A closed circuit adapted to be broken by known means, for example a lock-switch &c., in a safe or like A is completed by the movement of a setting-lock G to the right, which allows the switch F to close and also completes a further circuit at P. In the closed circuit is the electromagnet K of a " set " indicator and an electromagnet J which, on energizing, attracts its armature T. Breaking of the first circuit at the safe &c. causes the release of the armature T, which acts to complete a bell circuit at S and an indicator circuit at X. Besides an " alarm " indication being given, a red lamp &c. can be lit. Snecifications 121,713, 139,707, ard 141,507 are referred to.
GB1684720A 1920-06-22 1920-06-22 Improvements relating to electric burglar and like alarms Expired GB167361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1684720A GB167361A (en) 1920-06-22 1920-06-22 Improvements relating to electric burglar and like alarms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1684720A GB167361A (en) 1920-06-22 1920-06-22 Improvements relating to electric burglar and like alarms

Publications (1)

Publication Number Publication Date
GB167361A true GB167361A (en) 1921-08-11

Family

ID=10084741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1684720A Expired GB167361A (en) 1920-06-22 1920-06-22 Improvements relating to electric burglar and like alarms

Country Status (1)

Country Link
GB (1) GB167361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038462A2 (en) * 1980-04-19 1981-10-28 Itt Industries, Inc. Automatic stepless adjustable transmission with pivoting arm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038462A2 (en) * 1980-04-19 1981-10-28 Itt Industries, Inc. Automatic stepless adjustable transmission with pivoting arm
EP0038462A3 (en) * 1980-04-19 1982-10-13 Itt Industries, Inc. Automatic stepless adjustable transmission with pivoting arm

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