GB1038624A - Improvements in door holders - Google Patents

Improvements in door holders

Info

Publication number
GB1038624A
GB1038624A GB1142362A GB1142362A GB1038624A GB 1038624 A GB1038624 A GB 1038624A GB 1142362 A GB1142362 A GB 1142362A GB 1142362 A GB1142362 A GB 1142362A GB 1038624 A GB1038624 A GB 1038624A
Authority
GB
United Kingdom
Prior art keywords
fastening member
door
solenoid
keeper
spring
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
GB1142362A
Inventor
Thomas Henry Nicholson
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.)
Dunford Fire Protection Services Ltd
Original Assignee
Dunford Fire Protection Services 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 Dunford Fire Protection Services Ltd filed Critical Dunford Fire Protection Services Ltd
Priority to GB1142362A priority Critical patent/GB1038624A/en
Publication of GB1038624A publication Critical patent/GB1038624A/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
    • E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E05B47/023—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving pivotally or rotatively
    • 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
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/10—Bolts of locks or night latches
    • E05B15/101—Spring-retracted bolts
    • 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
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Special Wing (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

1,038,624. Door holders. DUNFORD FIRE PROTECTION SERVICES Ltd. June 26, 1963 [March 26, 1962], No. 11423/62. Heading E2A. An electrically controlled door holder for holding a door open is designed to be mounted adjacent to a door 16 and to receive within it a keeper 15 attached to the door, the door holder comprising a box within which is pivotally mounted a fastening member 9 movable between two positions to free or engage said keeper, resilient means 11 biasing the fastening member into one of said two positions and an electromagnetic solenoid 6 the armature of which is connected to the fastening member, the solenoid being operative when energized to displace the fastening member to the other of said two positions against the bias of the resilient means. In the construction shown the resilient means is a coiled compression spring 11 which normally holds the fastening member away from the keeper and energization of the solenoid coil is necessary to move the fastening member to the keeper engaging position and to compress the spring. A switch 19 is provided to enable the solenoid circuit to be broken to allow the fastening member to release the door. A plurality of such door holders can be used in large buildings such as hospitals, stores or office blocks to hold doors open, the solenoids being connected to a common controlling device e.g. an electrical fire alarm, a heat or smoke detector or a push button master switch so that all the solenoids can be released simultaneously to release the doors to allow them to close under the urge of automatic closers fitted to the doors. With this arrangement failure of the electric circuit also causes the doors to open. In a modification the solenoid and spring can be arranged so that the spring normally holds the fastening member in its keeper-engaging position the solenoid being energized to release the fastening member. In this modification, as an alternative to the switch 19, an actuator such as a rotary cam or a push rod can be provided for engaging the fastening member to displace it against the bias of the spring 11, the actuator having a portion projecting from the box for hand or pedal operation.
GB1142362A 1962-03-26 1962-03-26 Improvements in door holders Expired GB1038624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1142362A GB1038624A (en) 1962-03-26 1962-03-26 Improvements in door holders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1142362A GB1038624A (en) 1962-03-26 1962-03-26 Improvements in door holders

Publications (1)

Publication Number Publication Date
GB1038624A true GB1038624A (en) 1966-08-10

Family

ID=9985956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1142362A Expired GB1038624A (en) 1962-03-26 1962-03-26 Improvements in door holders

Country Status (1)

Country Link
GB (1) GB1038624A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4857931U (en) * 1971-10-29 1973-07-24
US3819215A (en) * 1971-04-05 1974-06-25 Fuss F Kg Electric door opener
US3937505A (en) * 1974-03-13 1976-02-10 Lawrence Peska Associates, Inc. Electric hood latch for vehicles
GB2164384A (en) * 1984-09-15 1986-03-19 Barry Herbert Gwynne Locking mechanism
FR2659379A1 (en) * 1989-10-25 1991-09-13 Vincenti Henri Electric lock with pivoting lock bolt mounted on a door capable of being opened in the event of panic despite a thrust on the door
WO1997002399A1 (en) * 1995-07-04 1997-01-23 Winifred Cordwell Child proof remote locking of barriers such as doors and the like
CN102953596A (en) * 2011-08-17 2013-03-06 赵新华 Electromagnet bolt
WO2013068036A1 (en) * 2011-11-08 2013-05-16 Sellmore Bv Electromechanical lock for cabinets, showcases and drawers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819215A (en) * 1971-04-05 1974-06-25 Fuss F Kg Electric door opener
JPS4857931U (en) * 1971-10-29 1973-07-24
US3937505A (en) * 1974-03-13 1976-02-10 Lawrence Peska Associates, Inc. Electric hood latch for vehicles
GB2164384A (en) * 1984-09-15 1986-03-19 Barry Herbert Gwynne Locking mechanism
FR2659379A1 (en) * 1989-10-25 1991-09-13 Vincenti Henri Electric lock with pivoting lock bolt mounted on a door capable of being opened in the event of panic despite a thrust on the door
WO1997002399A1 (en) * 1995-07-04 1997-01-23 Winifred Cordwell Child proof remote locking of barriers such as doors and the like
CN102953596A (en) * 2011-08-17 2013-03-06 赵新华 Electromagnet bolt
WO2013068036A1 (en) * 2011-11-08 2013-05-16 Sellmore Bv Electromechanical lock for cabinets, showcases and drawers

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