GB1475006A - Anti-theft device - Google Patents

Anti-theft device

Info

Publication number
GB1475006A
GB1475006A GB5409674A GB5409674A GB1475006A GB 1475006 A GB1475006 A GB 1475006A GB 5409674 A GB5409674 A GB 5409674A GB 5409674 A GB5409674 A GB 5409674A GB 1475006 A GB1475006 A GB 1475006A
Authority
GB
United Kingdom
Prior art keywords
switch
article
alarm
cable
cores
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
GB5409674A
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.)
CARRICK SMITH A
Original Assignee
CARRICK SMITH A
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 CARRICK SMITH A filed Critical CARRICK SMITH A
Priority to GB5409674A priority Critical patent/GB1475006A/en
Publication of GB1475006A publication Critical patent/GB1475006A/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
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1472—Mechanical actuation by lifting or attempted removal of hand-portable articles with force or weight detection

Landscapes

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

Abstract

1475006 Theft alarms A J C SMITH 2 Dec 1975 [13 Dec 1974] 54096/74 Heading G4N An anti-theft device comprises a flat member 29 having adherent surfaces on both sides and a switch 24 attachable by means of member 29 to a surface 26 of an article to be protected, the switch being so arranged that its movable element 27 is held in one position when the switch is attached to the article and is urged to another position to activate an alarm when the switch is removed from the article. As shown, the movable member is a spring biased plunger 27 which projects through an aperture in the member 29 which may be of cardboard or plastics material. The surfaces of member 29 may be pressure adherent or coated with adhesive which may be pressure-sensitive. The switch is embedded in a block 25 of thermosetting resin. The switch 24 is connected to the alarm, Fig. 1 (not shown), by a flexible twincore coaxial cable 12, the two cores and the switch forming a closed loop when the switch is attached to the article. When the switch is removed, the loop is opened and one of the cores is connected to the screen of the cable to give the alarm. A plurality of such devices may be connected to a single alarm via respective cables 12 and a single common cable, Fig. 1 (not shown).
GB5409674A 1975-12-02 1975-12-02 Anti-theft device Expired GB1475006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5409674A GB1475006A (en) 1975-12-02 1975-12-02 Anti-theft device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5409674A GB1475006A (en) 1975-12-02 1975-12-02 Anti-theft device

Publications (1)

Publication Number Publication Date
GB1475006A true GB1475006A (en) 1977-06-01

Family

ID=10469897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5409674A Expired GB1475006A (en) 1975-12-02 1975-12-02 Anti-theft device

Country Status (1)

Country Link
GB (1) GB1475006A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260330A1 (en) * 1986-09-13 1988-03-23 Tele-Security-Foto Überwachungsanlagen GmbH Theft protection for objects
GB2197516A (en) * 1986-11-15 1988-05-18 John Bryan Clough Security device
GB2204977A (en) * 1987-03-12 1988-11-23 Philip John Coaker Boat anti-theft alarm steering restraint

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260330A1 (en) * 1986-09-13 1988-03-23 Tele-Security-Foto Überwachungsanlagen GmbH Theft protection for objects
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
GB2204977A (en) * 1987-03-12 1988-11-23 Philip John Coaker Boat anti-theft alarm steering restraint
GB2204977B (en) * 1987-03-12 1990-10-17 Philip John Coaker Boat anti-theft alarm steering restraint

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee