GB1125754A - Improvements relating to alarm apparatus - Google Patents

Improvements relating to alarm apparatus

Info

Publication number
GB1125754A
GB1125754A GB16123/65A GB1612365A GB1125754A GB 1125754 A GB1125754 A GB 1125754A GB 16123/65 A GB16123/65 A GB 16123/65A GB 1612365 A GB1612365 A GB 1612365A GB 1125754 A GB1125754 A GB 1125754A
Authority
GB
United Kingdom
Prior art keywords
switch
cavity
contact
panels
diaphragm
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
GB16123/65A
Inventor
Cecil Herbert Peek
Kenneth Rodney Peek
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.)
OASIS TECHNICAL INVEST Ltd
Original Assignee
OASIS TECHNICAL INVEST 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 OASIS TECHNICAL INVEST Ltd filed Critical OASIS TECHNICAL INVEST Ltd
Priority to GB16123/65A priority Critical patent/GB1125754A/en
Priority to US540865A priority patent/US3374323A/en
Priority to ES0325393A priority patent/ES325393A1/en
Priority to FR7782A priority patent/FR1494748A/en
Priority to CH535466A priority patent/CH463328A/en
Priority to NL6605000A priority patent/NL6605000A/xx
Priority to BE679528D priority patent/BE679528A/xx
Publication of GB1125754A publication Critical patent/GB1125754A/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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/20—Actuation by change of fluid pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/003—Switches operated by other part of human body than hands

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Burglar Alarm Systems (AREA)
  • Basic Packing Technique (AREA)

Abstract

1,125,754. Electric alarms. OASIS TECHNICAL INVESTMENTS Ltd. 6 April, 1966 [14 April, 1965; 11 Jan., 1966], Nos. 16123/65 and 1333/66. Heading G4N. Alarm apparatus comprises two panels 10, 11 sealingly united together to entrap a cavity 12. The pressure in cavity 12 is less than atmospheric and holds inoperative a switch 21 in an electric circuit incorporating alarm means. The panels 10, 11 may form part of a wall, window, door, floor, or ceiling. Switch 21 comprises a diaphragm 30 secured between plates 22, 27 by an insulating and sealing medium and having a contact 31 engageable by an adjustable contact 35 on a threaded pin 34. Pin 34 is adjustable in a stud 24 which secures switch 21 to a bush 17 provided in panel 10. A space 29 in switch 21 communicates, via a hole 32 in plate 22 and a groove 19 in bush 17, with space 12, the upper side of the diaphragm being open to atmosphere via holes 36. Brass pins 37, 38 extend from plates 22, 27 respectively and serve to connect switch 21 to a relay controlling an alarm system. Switch 21 is pre-set with contacts 31, 35 closed. When the partial vacuum in space 12 is destroyed diaphragm 30 pulls contact 31 from contact 35 breaking the electric circuit and releasing the relay to operate the alarm system. Panels 10, 11 may be provided with spacing means such as wire netting 13. In a modification, shown in Fig. 5, the spacing means are flexible porous pipes 61 and the cavity in which the pressure is less than atmospheric is formed by a bag 60 of plastics material housing the pipes 61. Bag 60 is shaped to fit around a projection 62 on a wall 63. In a further modification, Fig. 6 (not shown), the evacuated cavity may be formed in mutually interconnected non-porous pipes (65). Several double panel structures 10, 11 may be connected in series with a vacuum reservoir (90), Fig. 7 (not shown), associated with a pressure-sensitive switch (91).
GB16123/65A 1965-04-14 1965-04-14 Improvements relating to alarm apparatus Expired GB1125754A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB16123/65A GB1125754A (en) 1965-04-14 1965-04-14 Improvements relating to alarm apparatus
US540865A US3374323A (en) 1965-04-14 1966-04-07 Pressure responsive device for actuating an alarm
ES0325393A ES325393A1 (en) 1965-04-14 1966-04-12 Improvements related to alarm apparatus. (Machine-translation by Google Translate, not legally binding)
FR7782A FR1494748A (en) 1965-04-14 1966-04-13 Improvements to alarm devices
CH535466A CH463328A (en) 1965-04-14 1966-04-13 Pneumatic-electric alarm device
NL6605000A NL6605000A (en) 1965-04-14 1966-04-14
BE679528D BE679528A (en) 1965-04-14 1966-04-14

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB16123/65A GB1125754A (en) 1965-04-14 1965-04-14 Improvements relating to alarm apparatus
GB133366 1966-01-11

Publications (1)

Publication Number Publication Date
GB1125754A true GB1125754A (en) 1968-08-28

Family

ID=26236659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16123/65A Expired GB1125754A (en) 1965-04-14 1965-04-14 Improvements relating to alarm apparatus

Country Status (7)

Country Link
US (1) US3374323A (en)
BE (1) BE679528A (en)
CH (1) CH463328A (en)
ES (1) ES325393A1 (en)
FR (1) FR1494748A (en)
GB (1) GB1125754A (en)
NL (1) NL6605000A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530847A1 (en) * 1982-07-22 1984-01-27 Securiton Ag BUILDING ELEMENT FOR THE PRODUCTION OF COMPARTMENTS OR ROOMS WITH THE TEST OF THE DELETION
WO1987001228A1 (en) * 1985-08-12 1987-02-26 Millar Frederick W Security apparatus
US5203110A (en) * 1989-06-30 1993-04-20 Marantec Antriebs- Und Steuerungstechnik Gmbh & Co. Produktions Ohg Safety device for the closing edge of a door leaf

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594763A (en) * 1968-08-15 1971-07-20 Cecil H Peek Windows and the combination thereof with alarm means
US3573778A (en) * 1968-11-01 1971-04-06 Foxboro Co Cantileverlike device in fluid-mechanical alarm
US3593266A (en) * 1969-10-16 1971-07-13 Gen Motors Corp Disc brake wear monitor system
IT1062246B (en) * 1976-06-21 1983-09-20 Fontauto S N C ANTI-THEFT DEVICE FOR THE PROTECTION AGAINST BURGLAR ATTEMPTS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1684530A (en) * 1925-10-06 1928-09-18 Charles Tagliabue Mfg Co Pressure-controlled device
FR706159A (en) * 1929-11-25 1931-06-19 Time relays, especially for electrical switches and reversers
US1986479A (en) * 1929-12-27 1935-01-01 Automatic Sprinkler Co Means for supervising pneumatic fire alarm systems
DE563348C (en) * 1930-02-13 1932-11-03 Egon Lewin Electropneumatic protection against break-ins
US1974779A (en) * 1931-10-23 1934-09-25 John M Lupold Burglar alarm
US2972132A (en) * 1957-09-10 1961-02-14 Charles B Putney Control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530847A1 (en) * 1982-07-22 1984-01-27 Securiton Ag BUILDING ELEMENT FOR THE PRODUCTION OF COMPARTMENTS OR ROOMS WITH THE TEST OF THE DELETION
WO1987001228A1 (en) * 1985-08-12 1987-02-26 Millar Frederick W Security apparatus
US5203110A (en) * 1989-06-30 1993-04-20 Marantec Antriebs- Und Steuerungstechnik Gmbh & Co. Produktions Ohg Safety device for the closing edge of a door leaf

Also Published As

Publication number Publication date
US3374323A (en) 1968-03-19
FR1494748A (en) 1967-09-15
BE679528A (en) 1966-09-16
NL6605000A (en) 1966-10-17
CH463328A (en) 1968-09-30
ES325393A1 (en) 1967-02-16

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