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GB1081782A - Improvements in apparatus for actuating an alarm upon movement of a closure member relative to a stationary member - Google Patents

Improvements in apparatus for actuating an alarm upon movement of a closure member relative to a stationary member

Info

Publication number
GB1081782A
GB1081782A GB10255/66A GB1025566A GB1081782A GB 1081782 A GB1081782 A GB 1081782A GB 10255/66 A GB10255/66 A GB 10255/66A GB 1025566 A GB1025566 A GB 1025566A GB 1081782 A GB1081782 A GB 1081782A
Authority
GB
United Kingdom
Prior art keywords
alarm
door
chain
housing
switch
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
GB10255/66A
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.)
General Alarm Corp
Original Assignee
General Alarm Corp
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 General Alarm Corp filed Critical General Alarm Corp
Publication of GB1081782A publication Critical patent/GB1081782A/en
Expired legal-status Critical Current

Links

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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/36—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing comprising a flexible member, e.g. chains
    • E05C17/365—Security chains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/28—Extension link
    • Y10T292/283—Chain
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5164—Links to limit opening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7915—Tampering prevention or attack defeating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

1,081,782. Burglar alarms. GENERAL ALARM CORPORATION. March 9, 1966 [Oct. 4, 1965], No. 10255/66. Heading G4N. A door 10 is secured against more than a predetermined amount of movement relative to a jamb 11 by a chain 13 one end of which is detachably mounted in a slotted plate 12 on the door whilst its other end is fixed to a bolt 36 which projects from a switch operating lever (28), Fig. 3A (not shown), contained in a housing 16. If the chain is tensioned it causes lever (28) to actuate the operating handle (26) of an alarm switch (25), Fig. 2 (not shown), thus placing alarm (21) in circuit with a battery (22). The alarm may be a bell or buzzer in housing 16 or it may be a remote alarm, e.g. a flashing light. The alarm may also be sounded by a push-button 37. In a modification, Fig. 7, the chain is secured at one end to a strike plate 61 of a lock and at its other end to an anchor 91 which is slidable in a slot in a housing 60 secured to the door. Unlocking of the door from the outside by turning a key in lock cylinder 72 is prevented by a thumb-turn 71 which is slotted at 92 to receive a projection on chain anchor 91. If the door is forced the chain will cause housing 60 to tilt about a fulcrum 75. This causes a slot 81 in housing 60 to engage a switch handle 77 of alarm switch 79, thus placing alarm 80 in circuit with a battery 78. A lamp (86), Fig. 9 (not shown), lights up to indicate when bolt (67) is retracted.
GB10255/66A 1965-10-04 1966-03-09 Improvements in apparatus for actuating an alarm upon movement of a closure member relative to a stationary member Expired GB1081782A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492455A US3406386A (en) 1965-10-04 1965-10-04 Chain lock alarm

Publications (1)

Publication Number Publication Date
GB1081782A true GB1081782A (en) 1967-08-31

Family

ID=23956323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10255/66A Expired GB1081782A (en) 1965-10-04 1966-03-09 Improvements in apparatus for actuating an alarm upon movement of a closure member relative to a stationary member

Country Status (4)

Country Link
US (1) US3406386A (en)
CH (1) CH457180A (en)
DE (1) DE1553557A1 (en)
GB (1) GB1081782A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623062A (en) * 1970-06-25 1971-11-23 Minnesota Mining & Mfg Lock alarm structure
US3643250A (en) * 1970-12-08 1972-02-15 Paul F Sander Theft deterrent for office machines and small factory tools
DE2462872C2 (en) * 1974-12-11 1984-01-26 Fa. Aug. Winkhaus, 4404 Telgte Interlocking device that triggers an alarm
USD252850S (en) 1977-06-29 1979-09-11 Jorgensen Deceased Clarence W Burglar alarm
US5097253A (en) * 1989-01-06 1992-03-17 Battelle Memorial Institute Electronic security device
US5296841A (en) * 1992-09-21 1994-03-22 Alan Vormbrock Chain guard alarm apparatus
US5469139A (en) * 1995-02-16 1995-11-21 Ko; Joseph Y. Door block alarm
US6049276A (en) * 1998-03-02 2000-04-11 Agozzino; Andrew Burglar chain alarm
DE19810623A1 (en) * 1998-03-12 1999-09-16 Bosch Gmbh Robert Device for an intrusion detection system
US7847689B1 (en) * 2008-01-03 2010-12-07 Larry Woitalla Intruder alarm device
DE102008013685A1 (en) * 2008-03-11 2009-09-24 Bothe-Hild Gmbh Securing device for preventing opening of doors by unauthorized third-person, has locking device movable into locking position by door leaf relative to switching device in such manner that impulse is generated during movement of leaf
US10443267B2 (en) 2015-05-04 2019-10-15 Spectrum Brands, Inc. Lockset with cylinder integrity sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1157863A (en) * 1914-06-29 1915-10-26 Hamlau S Patents Company Combined burglar-alarm and lock.
US1156809A (en) * 1915-03-17 1915-10-12 Thomas L Pidgeon Burglar-alarm bolt.
GB636985A (en) * 1939-05-03 1950-05-10 Daniel Georg Martens An electric alarm device in connection with safety-chains for doors
US2818475A (en) * 1957-05-17 1957-12-31 Harry Frank Automatic alarm lock

Also Published As

Publication number Publication date
CH457180A (en) 1968-05-31
US3406386A (en) 1968-10-15
DE1553557A1 (en) 1969-06-19

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