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GB1002295A - Improvements in and relating to security systems - Google Patents

Improvements in and relating to security systems

Info

Publication number
GB1002295A
GB1002295A GB43577/63A GB4357763A GB1002295A GB 1002295 A GB1002295 A GB 1002295A GB 43577/63 A GB43577/63 A GB 43577/63A GB 4357763 A GB4357763 A GB 4357763A GB 1002295 A GB1002295 A GB 1002295A
Authority
GB
United Kingdom
Prior art keywords
picture
housing
alarm
relay
circuit
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
GB43577/63A
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.)
Accumulatorenfabrik Sonnenschein GmbH
Original Assignee
Accumulatorenfabrik Sonnenschein GmbH
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 Accumulatorenfabrik Sonnenschein GmbH filed Critical Accumulatorenfabrik Sonnenschein GmbH
Publication of GB1002295A publication Critical patent/GB1002295A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/149—Mechanical actuation by lifting or attempted removal of hand-portable articles with electric, magnetic, capacitive switch actuation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

1,002,295. Theft alarms. ACCUMULATORENFABRIK SONNENSCHEIN G.m.b.H. Nov. 5, 1963 [April 17, 1963], No. 43577/63. Heading G4N. A system for signalling unauthorized displacement of an article positioned on a surface comprises a circuit, enclosed within a housing disposed between the article and the surface, which includes a switch actuated by means of a magnet attached to the article. As described, a housing of ferro-magnetic material 14, Fig. 1, is disposed between a picture 10 and a wall 13 and includes two magnetically actuated switches 33, 34 normally held open by magnets 29, 22 attached to the picture and the wall, respectively. The magnets are positioned over holes in the housing and hold the housing hidden behind the picture. Movement of the picture causes a reduction in the magnetic field acting on one of the switches allowing it to close, completing the alarm circuit, Fig. 2 (not shown), which then radiates a sonic signal. The signal is picked up on microphone 53, Fig. 5, and fed via a voice scrambler 54 to actuate relay 56 which completes the alarm circuit to bell 50. Once actuated, this circuit holds in by self hold relay 60 until reset by button 58. In order to detect failure of the battery 51, a further relay 62 releases with low voltage to actuate the alarm. Instead of sonic radiation electromagnetic radiation may be used with suitable transmitters and receivers. In a modification, Fig. 4 (not shown) the magnetic switches may be normally closed, holding a relay energized to keep the alarm circuit operative. Such an arrangement will also initiate an alarm with low battery voltage in the unit 14.
GB43577/63A 1963-04-17 1963-11-05 Improvements in and relating to security systems Expired GB1002295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA0042907 1963-04-17

Publications (1)

Publication Number Publication Date
GB1002295A true GB1002295A (en) 1965-08-25

Family

ID=6933361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43577/63A Expired GB1002295A (en) 1963-04-17 1963-11-05 Improvements in and relating to security systems

Country Status (5)

Country Link
US (1) US3247502A (en)
BE (1) BE640835A (en)
CH (1) CH428503A (en)
GB (1) GB1002295A (en)
NL (1) NL300473A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176330A (en) * 1985-06-07 1986-12-17 Aica Kogyo Co Ltd Keysensor
GB2197516A (en) * 1986-11-15 1988-05-18 John Bryan Clough Security device

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484775A (en) * 1965-10-20 1969-12-16 Wallace Dean Cline Theft prevention system
US3463491A (en) * 1966-01-26 1969-08-26 Albert E Shaw Pin detection system with radially symmetrical pattern of magnetic reed switches
US3530451A (en) * 1967-01-20 1970-09-22 Security Systems Inc Holster radio alarm
US3544987A (en) * 1967-02-24 1970-12-01 Renville H Mcmann Jr Property protection alarm system
US3582931A (en) * 1967-10-18 1971-06-01 Daniel Nawrocki Pilferage-prevention system
US3725887A (en) * 1968-06-10 1973-04-03 Sneider Electronic Sys Inc Radio transmitting alarm system
US3618059A (en) * 1968-06-19 1971-11-02 Milton F Allen Electronic detection and tracing means
US3569644A (en) * 1969-07-14 1971-03-09 Elgin Electronics Bill trap
US3641425A (en) * 1969-08-07 1972-02-08 Transalarm Electronics Inc Alarm system
US3618067A (en) * 1969-11-04 1971-11-02 Donald P Devale Movement detector
US3710371A (en) * 1970-02-18 1973-01-09 G Whalen Portable security alarm and alarm system
US3641540A (en) * 1970-03-30 1972-02-08 Joel L Cutler Wireless alarm system
US3665448A (en) * 1970-08-03 1972-05-23 Hugh A Mcglinchey Electronic shoplifting prevention system
US4023176A (en) * 1975-04-02 1977-05-10 Texas Instruments Incorporated Beacon tracking display system
NL8204500A (en) * 1982-11-19 1984-06-18 Castelijn & Beerens Lederwaren PORTABLE ALARM DEVICE.
US4638307A (en) * 1985-10-15 1987-01-20 Swartout Willson C Patient position monitoring system
NO168394C (en) * 1986-05-21 1992-02-12 Securiton Ag DEVICE FOR PROTECTION AGAINST THEFT OF OBJECTS
WO1988003689A1 (en) * 1986-11-15 1988-05-19 John Bryan Clough Security device
US5512877A (en) * 1995-05-09 1996-04-30 Mosler, Inc. Currency removal sensor system
US7388484B2 (en) * 2005-08-16 2008-06-17 Honeywell International Inc. Conductive tamper switch for security devices
IT201900012729A1 (en) * 2019-07-24 2021-01-24 Petersen Fabio Rocco Valentini ANTI-THEFT DEVICE FOR WALL-MOUNTED OBJECTS

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899674A (en) * 1959-08-11 Sierer
GB669820A (en) * 1948-03-06 1952-04-09 John Westaway Improvements in electric alarm devices
US2766358A (en) * 1950-12-13 1956-10-09 Davidson Signal Co Ltd Hold-up alarm signal system
US2754498A (en) * 1954-04-29 1956-07-10 Louise K Lavelle Alarm device for suspended articles
GB770958A (en) * 1954-06-22 1957-03-27 Bonochord Ltd Improvements relating to burglar alarms
US2943308A (en) * 1956-03-15 1960-06-28 Everett A Westphal Protective alarm system
US2905762A (en) * 1957-04-10 1959-09-22 George W Rettie Fire and burglar alarm system
US2877361A (en) * 1957-04-12 1959-03-10 Holmes Electric Protective Com Burglar alarm system
US3056951A (en) * 1958-05-06 1962-10-02 Doris H Tooni Safe alarm system
DE1108111B (en) * 1960-05-20 1961-05-31 Siemens Ag Arrangement to secure against theft
US3161742A (en) * 1961-08-24 1964-12-15 Specialties Dev Corp Magnetic intruder and fire deterctor
US3135953A (en) * 1961-11-06 1964-06-02 Samuel M Bagno Lamp illuminating network
US3192517A (en) * 1962-05-11 1965-06-29 Bay State Security Corp Burglar alarm
US3155954A (en) * 1962-06-15 1964-11-03 Howard M Larrick Automatic sensitivity control for sound actuated detection and alarm systems
US3114905A (en) * 1962-08-13 1963-12-17 Michael T Sliman Alarm system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176330A (en) * 1985-06-07 1986-12-17 Aica Kogyo Co Ltd Keysensor
GB2176330B (en) * 1985-06-07 1989-07-05 Aica Kogyo Co Ltd Key sensing system
GB2197516A (en) * 1986-11-15 1988-05-18 John Bryan Clough Security device
GB2197516B (en) * 1986-11-15 1990-10-03 John Bryan Clough Security device

Also Published As

Publication number Publication date
BE640835A (en) 1964-04-01
US3247502A (en) 1966-04-19
CH428503A (en) 1967-01-15
NL300473A (en)

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