FR2373655A1 - BRAIDED METAL WIRE MESH FENCE FOR HIGH SECURITY INSTALLATIONS - Google Patents

BRAIDED METAL WIRE MESH FENCE FOR HIGH SECURITY INSTALLATIONS

Info

Publication number
FR2373655A1
FR2373655A1 FR7737521A FR7737521A FR2373655A1 FR 2373655 A1 FR2373655 A1 FR 2373655A1 FR 7737521 A FR7737521 A FR 7737521A FR 7737521 A FR7737521 A FR 7737521A FR 2373655 A1 FR2373655 A1 FR 2373655A1
Authority
FR
France
Prior art keywords
wire mesh
wire
mesh structure
metal wire
high security
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.)
Granted
Application number
FR7737521A
Other languages
French (fr)
Other versions
FR2373655B3 (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 claimed from DE19762656349 external-priority patent/DE2656349A1/en
Priority claimed from DE19772746068 external-priority patent/DE2746068A1/en
Application filed by Individual filed Critical Individual
Publication of FR2373655A1 publication Critical patent/FR2373655A1/en
Application granted granted Critical
Publication of FR2373655B3 publication Critical patent/FR2373655B3/fr
Granted 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
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Catching Or Destruction (AREA)
  • Burglar Alarm Systems (AREA)
  • Woven Fabrics (AREA)
  • Knitting Of Fabric (AREA)

Abstract

The surrounding fence has a wire mesh structure in which an electrical resistance is incorporated. This electrical resistance can be, for example, a resistance wire (4) which is surrounded by a plastic sheath (5) of the wire mesh structure. In order to reinforce the wire mesh structure, a steel wire (6') can be incorporated in the plastic sheath (5) in addition to the resistance wire (4). The resistance wire (4) is arranged in an electrical resistance measuring circuit (R1, R2, R3, R4, 3) so that an alarm signal is triggered by the resultant change in the electrical resistance values (R1, R2) if the wire mesh structure is damaged. Such a wire mesh structure makes it possible to trigger an alarm signal even if only a single mesh is damaged.
FR7737521A 1976-12-13 1977-12-13 BRAIDED METAL WIRE MESH FENCE FOR HIGH SECURITY INSTALLATIONS Granted FR2373655A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19762656349 DE2656349A1 (en) 1976-12-13 1976-12-13 High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit
DE19772746068 DE2746068A1 (en) 1977-10-13 1977-10-13 High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit

Publications (2)

Publication Number Publication Date
FR2373655A1 true FR2373655A1 (en) 1978-07-07
FR2373655B3 FR2373655B3 (en) 1980-09-05

Family

ID=25771248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737521A Granted FR2373655A1 (en) 1976-12-13 1977-12-13 BRAIDED METAL WIRE MESH FENCE FOR HIGH SECURITY INSTALLATIONS

Country Status (7)

Country Link
CH (1) CH624447A5 (en)
DK (1) DK546577A (en)
ES (1) ES464950A1 (en)
FR (1) FR2373655A1 (en)
IT (1) IT1090733B (en)
NL (1) NL7713795A (en)
SE (1) SE7713904L (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018619A1 (en) * 1979-05-05 1980-11-12 Kabelwerke Brugg A.-G. Security arrangement with at least one wire rope net for protecting objects situated behind it
DE3029712A1 (en) * 1979-08-07 1981-02-26 Ci Ka Ra Srl WIRE GRILLE FOR BURGLAR-PROOF ENCLOSURES OR THE LIKE AND METHOD AND DEVICE FOR PRODUCING THE SAME
DE3006999A1 (en) * 1980-02-25 1981-09-24 Ernst 4200 Oberhausen Blaser Circuit for security fence - has four wires forming arms of Wheatstone bridge to release alarm when short-circuited
EP0039371A2 (en) * 1980-02-25 1981-11-11 Ernst Blaser Surveillance device for the field behind a security fence
FR2510785A1 (en) * 1981-07-31 1983-02-04 Guerineau Yves Electronically monitored metal wire security fence - has sections linked in pairs for comparison of resistance to check possible break-in using A=D converter, comparator and memorised tables
FR2510786A1 (en) * 1981-07-31 1983-02-04 Guerineau Yves Security fence using plastics coated metal wire - has conductor for signalling intrusion combined with plastic coating
FR2638877A1 (en) * 1988-11-10 1990-05-11 Bosmy Ste Normande Clotures Et Device for detecting a break in a perimeter fence, localised by stretches

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723903A1 (en) * 1987-07-18 1989-01-26 Bernhard Haverkamp MESH WIRE FOR ELECTRICALLY MONITORED FENCES
DE102015226652A1 (en) * 2015-12-23 2017-06-29 Bernhard F. Haverkamp Steel ropes and mesh made of steel cables for alarm protection

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018619A1 (en) * 1979-05-05 1980-11-12 Kabelwerke Brugg A.-G. Security arrangement with at least one wire rope net for protecting objects situated behind it
DE3029712A1 (en) * 1979-08-07 1981-02-26 Ci Ka Ra Srl WIRE GRILLE FOR BURGLAR-PROOF ENCLOSURES OR THE LIKE AND METHOD AND DEVICE FOR PRODUCING THE SAME
DE3006999A1 (en) * 1980-02-25 1981-09-24 Ernst 4200 Oberhausen Blaser Circuit for security fence - has four wires forming arms of Wheatstone bridge to release alarm when short-circuited
EP0039371A2 (en) * 1980-02-25 1981-11-11 Ernst Blaser Surveillance device for the field behind a security fence
EP0039371A3 (en) * 1980-02-25 1982-03-24 Ernst Blaser Security fence, circuit arrangement and surveillance of the field behind the fence
FR2510785A1 (en) * 1981-07-31 1983-02-04 Guerineau Yves Electronically monitored metal wire security fence - has sections linked in pairs for comparison of resistance to check possible break-in using A=D converter, comparator and memorised tables
FR2510786A1 (en) * 1981-07-31 1983-02-04 Guerineau Yves Security fence using plastics coated metal wire - has conductor for signalling intrusion combined with plastic coating
FR2638877A1 (en) * 1988-11-10 1990-05-11 Bosmy Ste Normande Clotures Et Device for detecting a break in a perimeter fence, localised by stretches

Also Published As

Publication number Publication date
NL7713795A (en) 1978-06-15
ES464950A1 (en) 1979-08-16
DK546577A (en) 1978-06-14
CH624447A5 (en) 1981-07-31
IT1090733B (en) 1985-06-26
SE7713904L (en) 1978-06-14
FR2373655B3 (en) 1980-09-05

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