GB443329A - Improvements in electric burglar alarms - Google Patents

Improvements in electric burglar alarms

Info

Publication number
GB443329A
GB443329A GB1768935A GB1768935A GB443329A GB 443329 A GB443329 A GB 443329A GB 1768935 A GB1768935 A GB 1768935A GB 1768935 A GB1768935 A GB 1768935A GB 443329 A GB443329 A GB 443329A
Authority
GB
United Kingdom
Prior art keywords
circuit
burglar
closing
circuits
electric burglar
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
GB1768935A
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
Application filed by Individual filed Critical Individual
Priority to GB1768935A priority Critical patent/GB443329A/en
Publication of GB443329A publication Critical patent/GB443329A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation

Abstract

443,329. Burglar - alarms. ANGUS, A., 19A, Chattan Place, Aberdeen. June 20, 1935, No. 17689. Drawings to Specification. [Class 118 (i)] An electric burglar-alarm circuit for buildings includes one or more audible or visible signals actuated by the closing of the circuit by a burglar-operated switch, the closing of the circuit also actuating a vibrator or hammer adapted to vibrate a pendulum rod which closes and opens a second and separate circuit containing a flashing lamp. The first circuit may have a storage battery as its source of current, and the second circuit may be connected to the mains. Both circuits may be put out of operation by a hand switch, which also serves to close a tell-tale circuit when the apparatus is set for operation. Circuits fitted with fuses are described.
GB1768935A 1935-06-20 1935-06-20 Improvements in electric burglar alarms Expired GB443329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1768935A GB443329A (en) 1935-06-20 1935-06-20 Improvements in electric burglar alarms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1768935A GB443329A (en) 1935-06-20 1935-06-20 Improvements in electric burglar alarms

Publications (1)

Publication Number Publication Date
GB443329A true GB443329A (en) 1936-02-26

Family

ID=10099481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1768935A Expired GB443329A (en) 1935-06-20 1935-06-20 Improvements in electric burglar alarms

Country Status (1)

Country Link
GB (1) GB443329A (en)

Similar Documents

Publication Publication Date Title
GB1270682A (en) Improvements in or relating to intruder alarm systems
GB443329A (en) Improvements in electric burglar alarms
GB1169031A (en) Condition Monitoring System
GB398549A (en) An improved automatic burglar alarm and/or burglary preventive device
GB383296A (en) Improvements in or relating to electric fire alarm apparatus
GB1488246A (en) Alarms
GB167361A (en) Improvements relating to electric burglar and like alarms
SU628518A1 (en) Fire alarm
GB775424A (en) Improvements in or relating to cases, bags, boxes or the like
SU595754A1 (en) Device for production-wise signalling
GB913666A (en) Improvements in or relating to fire-detection circuits
GB1528349A (en) Communication apparatus
GB271716A (en) Improvements in or relating to fire-alarms
GB520627A (en) Sound controlled lighting or alarm system
FR2339198A1 (en) Combined electric alarm clock and intruder alarm - has intruder detection switch connected in parallel with clock alarm switch to activate alarm
GB679103A (en) Visual and audible electric alarm signals
GB292649A (en) Improvements to electric burglar alarms
JPS57122378A (en) Mechanism for checking alram setting of timepiece
GB364358A (en) Improvements relating to automatic traffic signals
JPS52127358A (en) Electronic timepiece
JPS5248361A (en) Electronic alarm timepiece having means for detecting service life of battery
GB194093A (en) Improvements in burglar and like alarms
GB429734A (en) A combined fire and burglary or like alarm system
GB865724A (en) Improvements in or relating to alarm systems
GB403024A (en) Improvements in or relating to automatic burglar and like alarms