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Although the term originated from the 1998 film Sliding Doors, written and directed by Peter Howitt and starring Gwyneth Paltrow, [2] the concept was explored earlier by J. B. Priestley in his 1932 play Dangerous Corner. [clarification needed] Examples of 'sliding doors moments' being used in modern vernacular include:
The magnetic lock is suitable for both in-swinging and out-swinging doors. Brackets (L bracket, LZ bracket, U bracket) are used to orient the armature for use with both applications. Filler plates are also used to provide a large, flat mounting area on the door frame when the electromagnet is larger than the available mounting space on the door ...
A simple electromagnetic door holder consists of a strong electromagnet, usually attached to a wall or mounted in a floor pedestal enclosure, next to the door it controls. The mechanism may be mounted near the floor, at the upper corner of the open door, or at any convenient height along the latch edge (away from the hinged edge).
Swinging glass doors are a better choice than the typical sliding glass doors, since they offer a much tighter seal, [7] but glass – even the best type of glass, chosen according to the climate zone – is always a poor insulator, making doors based on them a poor choice from a thermal comfort perspective.
Some sliding doors run on a wall-mounted rail, like this one Sliding doors in a modern wardrobe. The 'top-hung' system is most often used. The door is hung by two trolley hangers at the top of the door running in a concealed track; all the weight is taken by the hangers, making the door easier to move.
A door operator may be triggered in various ways: Approach Sensor (such as a radar sensor) - the door opens when a user approaches it. Pushbutton - the door opens when a user presses a button. Access control - the door opens when an access control system determines the user is authorized to go through. Automatically (in the case of elevators).
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