GB1419021A - Device for unbolting a door - Google Patents

Device for unbolting a door

Info

Publication number
GB1419021A
GB1419021A GB2370073A GB2370073A GB1419021A GB 1419021 A GB1419021 A GB 1419021A GB 2370073 A GB2370073 A GB 2370073A GB 2370073 A GB2370073 A GB 2370073A GB 1419021 A GB1419021 A GB 1419021A
Authority
GB
United Kingdom
Prior art keywords
light
recess
crank
motor
several
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
GB2370073A
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.)
INDUSTRA MATIC TOOLS Ltd
Original Assignee
INDUSTRA MATIC TOOLS 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 INDUSTRA MATIC TOOLS Ltd filed Critical INDUSTRA MATIC TOOLS Ltd
Priority to GB2370073A priority Critical patent/GB1419021A/en
Publication of GB1419021A publication Critical patent/GB1419021A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

1419021 Locks INDUSTRA-MATIC (TOOLS) Ltd 29 Jan 1974 [6 Feb 1973 18 May 1973] 5713/73 Heading E2A The fastening bolt of a garage door is operated by an electric motor controlled by a photosensor which may be responsive to vehicle headlights. The bolt 12 is operated through a cable 17 and connecting link 16 from a crank 15 driven by a motor 14 under the control of a light sensor 19 and amplifier 22. A recess 28 in the crank disc operates a switch 20 to stop the crank in a set position. When light shines on sensor 19, it moves switch 23 from its normal path 26 to contact 27. The motor is then fed over contact 24 while the follower 21 is in the disc recess, and then, contact 25 being made, the motor runs when the light is off, to withdraw the bolt. The disc continues to rotate until arm 21 engages the recess. Several recesses may be employed to complicate the opening sequence and make it necessary to flash the headlights several times, and several switches may be employed, one being controlled by a timer (Figs. 6 and 7, not shown). In another form (Figs. 8 and 9, also not shown) several light flashes are needed to cause a stepping rotor to move to a switch-operating position.
GB2370073A 1973-02-06 1973-05-18 Device for unbolting a door Expired GB1419021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2370073A GB1419021A (en) 1973-02-06 1973-05-18 Device for unbolting a door

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB571373 1973-02-06
GB2370073A GB1419021A (en) 1973-02-06 1973-05-18 Device for unbolting a door

Publications (1)

Publication Number Publication Date
GB1419021A true GB1419021A (en) 1975-12-24

Family

ID=26240092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2370073A Expired GB1419021A (en) 1973-02-06 1973-05-18 Device for unbolting a door

Country Status (1)

Country Link
GB (1) GB1419021A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159567A (en) * 1984-04-25 1985-12-04 Kenneth Ivor Jordan Security apparatus for controlling locks or latches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159567A (en) * 1984-04-25 1985-12-04 Kenneth Ivor Jordan Security apparatus for controlling locks or latches

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Legal Events

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