US3833899A - Device for actuating an alarm in the case of breaking in - Google Patents

Device for actuating an alarm in the case of breaking in Download PDF

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Publication number
US3833899A
US3833899A US00255030A US25503072A US3833899A US 3833899 A US3833899 A US 3833899A US 00255030 A US00255030 A US 00255030A US 25503072 A US25503072 A US 25503072A US 3833899 A US3833899 A US 3833899A
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United States
Prior art keywords
locking
switch
keeper
closing member
closing
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 - Lifetime
Application number
US00255030A
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English (en)
Inventor
J Blosse
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BLOSCOP
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BLOSCOP
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Publication date
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Publication of US3833899A publication Critical patent/US3833899A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/083—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate
    • E05B45/086—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate by transverse movement

Definitions

  • the device comprises a lock for locking the door, a detecting mechanism for detecting the opening of the door and connected through an arming mechanism to an alarm signal generator.
  • the arming mechanism comprises a switch which is actuated directly by the bolt of the lock for either allowing or precluding actuation of the alarm.
  • the switch is of the type having a pushbutton and is successively closed and opened and vice versa by successive depressions of the pushbutton effected by the bolt.
  • the present invention relates to a device for actuating an alarm signal in the case of the breaking'in of a. premises or other enclosure.
  • Such devices are known in the art. They usually employ a detecting mechanism responsive to the movement of the closing member closing the access to the premises or enclosure, an arming mechanism for allowing or neutralizing the actuation of the alarm by enti-' tled persons from outside or inside the closing member, and an alarm signal generator placed near to, or remote from, the aforementioned detecting and arming mechanisms.
  • Two types of devices exist namely those in which the device can be armed only from inside the premises or enclosure and those in which the device can be armed from either inside or outside.
  • the arming is effected preferably by means of a lock, latch or like apparatus which is independent or specially provided for this purpose or con stitutes a locking meanswhich also serves to lock the closing member in the closing position.
  • the closing member defines a clearance with the frame which may vary widely from one closing member to another. Consequently, the device can only be mounted by a specialist and this is a disadvantage in respect of an article intended to have a wide market by direct sale to the public.
  • An object of the present invention is to remedy these drawbacks of known arrangements.
  • the invention provides a device for actuating an alarm when breaking into a premises or enclosure defined by a wall or like enclosure having an opening capable of being closed by a closing member such as a door, window or the like, which closing member is lockable by means of locking means such as a lock, the device comprising a detecting mechanism responsive to the opening of said closing memberand capable of actuating an alarm signal generator whichis connected to the detecting mechanism through an arming mechanism' which allows or precludes the actuation of the alarm, said arming mechanism being controlled by said locking means.
  • the arming mechanism is an electric switch having successive actuations and a pushbutton, the latter being actuated directly through the moving element performing the locking function of said locking means.
  • the switch having successive actuations is disposed in a case constituting a keeper and the movable bolt element of the locking means acts on the pushbutton of the switch in the closing position of the locking means.
  • FIG. 1 is an elevational view of an alarm actuating device according to the invention associated witha bolt or a safety lock of a door;
  • FIG. 2 is a plan view, partly in section taken on line 2-2 of FIG. 1, of the device shown in FIG. I, and
  • FIG. 3 is an elevational view, partly in section, of a modification of the device according to the invention.
  • FIGS. 1 and 2 The device shown in FIGS. 1 and 2 is associated with a door P, for example of an apartment, the latter constituting the enclosure to be protected.
  • a door P for example of an apartment
  • the enclosure may be, for example, a premises, an arcadefined by a wall or fence, a house, or individual building, a drawer, a refrigerator, or an automobile vehicle.
  • the closing member may be other than a door, for example a window or portal.
  • a. case I having a double function. It first actsas a keeper for a lock V of conventional type whose bolt A is horizontally slidable.
  • the case 1 also acts as a housing for an arming mechanism 2 and a part of a detecting mechanism 3.
  • the lock V has preferably two locking positions. In the first position, the bolt is introduced into the keeper, that is the case 1, through a slot or notch 4 provided in the conventional manner in the wall adjacent the edge of the door P. In the second position of the lock V, the bolt A extends still further into the case 1 so that its leading edge 5 comes in contact with a pushbutton 6 of the arming mechanism 2.
  • the latter is constituted by an electric switch of known type having successive positions or actuations, that is to say, the switch comprises two fixed contacts and a moving contact, the latter being capable of occupying two stable positions which are occupied in succession after two successive depressions on the push button 6.
  • the movingcontact is applied against the fixed contacts whereas in the: other position the switch is opened,.the moving contact being disengaged from the fixed contacts.
  • the fixed contacts of this switch are electrically connected to: two connecting screws 7 and 8 outside the housing. of the switch.
  • the housing is fixed tothe'case l by screw and nut means 9.
  • the detecting mechanism B comprises an- L-section member 10 which is-notdisposed in the case. 1 but fixed ontheedge of the door P' so that the flange 10 of the 3 member is capable of acting on the free end of a resiliently yieldable metal strip 11 which is mounted horizontally in the case 1 against the rear wall 12.
  • This strip has preferably a foldable free end portion which permits, when mounting or fitting the device on the door, regulating its operative length so as to adapt it to the clearance between the keeper and the edge of the door.
  • the member is maintained in position by two screws 13 which extend through oblong apertures 14 arranged to permit adjustment of the member in the horizontal plane.
  • the resiliently yieldable strip 11 is fixed in the case 1 by screw and nut means 15 which ex tend through an oblong aperture 16 allowing adjustment of the strip 11 in the horizontal plane.
  • the strip 11 is capable of acting on a switch 17 through a curved strip 18 and a curved spring 19 which ensures a sudden operation of the switch in the wellknown manner.
  • the switch or arming mechanism 2 and the switch 17 are electrically connected in series and connected by two wires 20 and 21 to an alarm signal generator 22 the diagram of which is shown in FIG. 1.
  • This generator is preferably placed at a distance from the door P in a place hidden from view. It comprises a source of voltage 23 supplying power to a circuit consisting of a siren 24 or like apparatus, a relay coil 25, a closing contact 26 actuated by the relay coil 25, and an on-off switch 27 which could be actuated by a key.
  • the closing contact 26 is connected in series with the series circuit of the switch 2 and switch 17.
  • the switch 17 and the L-sectioned member 10 may be replaced by a switch having a magnetic control for example of the type having blades under a glass ampoule, the magnet being mounted on the door and the switch being placed on the keeper or in another suitable place.
  • the device according to the invention operates in the following manner:
  • the member 10 If, under these conditions, an offender attempts to open the door, the member 10 is disengaged from the strip 11 so that the switch 17 closes in the manner described hereinbefore. At this moment, the circuit of the generator 22 is closed, the siren 24 is actuated and the relay coil closes the contact 26. Thus the siren continues to operate even if the offender cuts the wires 20 and 21 or destroys the switches enclosed in the case 1.
  • the case 7 is disposed in the same case as the arming and detecting mechanisms 2 and 3.
  • the case contains all the elements of the generator.
  • the lock 30 permits opening the case 28 for stopping the alarm, for example by withdrawing the source of voltage 23. In this arrangement, no on-off switch is provided outside the case which may be actuated by the offender.
  • FIGS. 1 and 2 The advantage of the embodiment shown in FIGS. 1 and 2 is that it may be employed with an existing lock, only the keeper being replaced by a case 1 containing the arming and detecting mechanism.
  • said moving contact being urged into contact with said two fixed contacts, to complete a circuit through said switch, by a movement of said locking member, against said pushbutton and to the one of the locking positions of said locking member to its fully extended position,
  • the detecting mechanism comprises a second electric switch disposed within said keeper and a thrust means which is carried by the closing member and is capable of opening the second switch when the closing member closes said opening.

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  • Burglar Alarm Systems (AREA)
US00255030A 1971-05-19 1972-05-19 Device for actuating an alarm in the case of breaking in Expired - Lifetime US3833899A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7118129A FR2138203B1 (fr) 1971-05-19 1971-05-19

Publications (1)

Publication Number Publication Date
US3833899A true US3833899A (en) 1974-09-03

Family

ID=9077301

Family Applications (1)

Application Number Title Priority Date Filing Date
US00255030A Expired - Lifetime US3833899A (en) 1971-05-19 1972-05-19 Device for actuating an alarm in the case of breaking in

Country Status (4)

Country Link
US (1) US3833899A (fr)
DE (1) DE2223662A1 (fr)
FR (1) FR2138203B1 (fr)
IT (1) IT957906B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091866A (en) * 1976-11-19 1978-05-30 Frank Curatolo Combination door lock and electrical switch
US4845471A (en) * 1987-09-22 1989-07-04 Chu Kans C Door lock
US5311168A (en) * 1992-09-10 1994-05-10 Pease Industries, Inc. Lock set with self-contained door alarm and annunciator system
WO1994021877A1 (fr) * 1993-03-25 1994-09-29 Fankhauser, Peter Installation de securite pour elements de fermeture d'un acces
EP0720136A2 (fr) * 1994-12-21 1996-07-03 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. KG. Dispositif pour armer un système d'alarme et pour surveiller une porte d'entrée
US20070159628A1 (en) * 2003-03-05 2007-07-12 Basell Poliolefine Italia S.R.L. Control method in a polymerization process
US20090106536A1 (en) * 1998-08-24 2009-04-23 Microunity Systems Engineering, Inc. Processor for executing group extract instructions requiring wide operands
CN115331398A (zh) * 2022-07-05 2022-11-11 中国长江电力股份有限公司 一种水轮发电机组蜗壳进入门螺栓智能监测装置及方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9113493U1 (de) * 1991-10-30 1992-01-16 BKS GmbH, 5620 Velbert Vorrichtung zur Überwachung des Schließeingriffs von Treibriegelstangen, insbesondere an Treibstangenschlössern
FR2725749A1 (fr) * 1994-10-17 1996-04-19 Prieur Guy Gache-alarme
FR2725750A1 (fr) * 1994-10-17 1996-04-19 Prieur Guy Gache-alarme
EP0798435A1 (fr) * 1996-03-27 1997-10-01 Guy Prieur Gâche alarme

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US262393A (en) * 1882-08-08 James p
US567176A (en) * 1896-09-08 Contact device for electric burglar-alarms
US963301A (en) * 1909-05-08 1910-07-05 Hart Mfg Co Circuit-controller.
US1126951A (en) * 1914-01-30 1915-02-02 Pearl D Bucknum Electric switch.
US1820805A (en) * 1929-08-08 1931-08-25 Jakopec George Burglar alarm
US2446217A (en) * 1946-06-27 1948-08-03 Herman H Druffel Burglar alarm
US2492474A (en) * 1948-04-26 1949-12-27 Jesse L Gempp Bracket for burglar alarms
US2615083A (en) * 1946-09-21 1952-10-21 Krueger August Burglar alarm system
US2679039A (en) * 1950-11-13 1954-05-18 Koppl Adolf Bolt action operated alarm system and switches therefor
US2721239A (en) * 1954-06-02 1955-10-18 Kuffer Willy Burglar alarm
US2756300A (en) * 1953-11-30 1956-07-24 Arthur J Thiberville Lock controlled switch
US3147468A (en) * 1962-07-24 1964-09-01 Edward N Daniels Alarm systems
US3176093A (en) * 1963-07-02 1965-03-30 Edward C Pollak Closure operated switch actuator having sag compensation
US3274354A (en) * 1964-07-15 1966-09-20 Master Specialties Company Switch mechanism
US3288973A (en) * 1965-04-16 1966-11-29 Cutler Hammer Inc Push-push switch convertible to momentary switch
US3582592A (en) * 1968-02-21 1971-06-01 Rudolf Schadow Pushbutton switches
US3704460A (en) * 1970-08-18 1972-11-28 Stanley William Frank Self-contained alarm lock with tamper-proof interlocked casing formed from extrusion

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US262393A (en) * 1882-08-08 James p
US567176A (en) * 1896-09-08 Contact device for electric burglar-alarms
US963301A (en) * 1909-05-08 1910-07-05 Hart Mfg Co Circuit-controller.
US1126951A (en) * 1914-01-30 1915-02-02 Pearl D Bucknum Electric switch.
US1820805A (en) * 1929-08-08 1931-08-25 Jakopec George Burglar alarm
US2446217A (en) * 1946-06-27 1948-08-03 Herman H Druffel Burglar alarm
US2615083A (en) * 1946-09-21 1952-10-21 Krueger August Burglar alarm system
US2492474A (en) * 1948-04-26 1949-12-27 Jesse L Gempp Bracket for burglar alarms
US2679039A (en) * 1950-11-13 1954-05-18 Koppl Adolf Bolt action operated alarm system and switches therefor
US2756300A (en) * 1953-11-30 1956-07-24 Arthur J Thiberville Lock controlled switch
US2721239A (en) * 1954-06-02 1955-10-18 Kuffer Willy Burglar alarm
US3147468A (en) * 1962-07-24 1964-09-01 Edward N Daniels Alarm systems
US3176093A (en) * 1963-07-02 1965-03-30 Edward C Pollak Closure operated switch actuator having sag compensation
US3274354A (en) * 1964-07-15 1966-09-20 Master Specialties Company Switch mechanism
US3288973A (en) * 1965-04-16 1966-11-29 Cutler Hammer Inc Push-push switch convertible to momentary switch
US3582592A (en) * 1968-02-21 1971-06-01 Rudolf Schadow Pushbutton switches
US3704460A (en) * 1970-08-18 1972-11-28 Stanley William Frank Self-contained alarm lock with tamper-proof interlocked casing formed from extrusion

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091866A (en) * 1976-11-19 1978-05-30 Frank Curatolo Combination door lock and electrical switch
US4845471A (en) * 1987-09-22 1989-07-04 Chu Kans C Door lock
US5311168A (en) * 1992-09-10 1994-05-10 Pease Industries, Inc. Lock set with self-contained door alarm and annunciator system
WO1994021877A1 (fr) * 1993-03-25 1994-09-29 Fankhauser, Peter Installation de securite pour elements de fermeture d'un acces
EP0720136A2 (fr) * 1994-12-21 1996-07-03 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. KG. Dispositif pour armer un système d'alarme et pour surveiller une porte d'entrée
EP0720136A3 (fr) * 1994-12-21 1996-07-31 Grundig Emv
US20090106536A1 (en) * 1998-08-24 2009-04-23 Microunity Systems Engineering, Inc. Processor for executing group extract instructions requiring wide operands
US20070159628A1 (en) * 2003-03-05 2007-07-12 Basell Poliolefine Italia S.R.L. Control method in a polymerization process
CN115331398A (zh) * 2022-07-05 2022-11-11 中国长江电力股份有限公司 一种水轮发电机组蜗壳进入门螺栓智能监测装置及方法
CN115331398B (zh) * 2022-07-05 2023-05-16 中国长江电力股份有限公司 一种水轮发电机组蜗壳进入门螺栓智能监测装置及方法

Also Published As

Publication number Publication date
IT957906B (it) 1973-10-20
FR2138203A1 (fr) 1973-01-05
DE2223662A1 (de) 1972-11-30
FR2138203B1 (fr) 1975-01-17

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