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A lock bypass is a technique in lockpicking, of defeating a lock through unlatching the underlying locking mechanism without operating the lock at all. It is commonly used on devices such as combination locks , where there is no natural access (such as a keyhole) for a tool to reach the locking mechanism.
This design of door can be lighter than a plug door of the same dimensions due to the need for reinforcing the opening around a plug door. A door plug, not to be confused with a plug door, is used in some of Boeing's 737-900ER [2] and MAX 9s instead of an actual emergency exit door. It can be removed outwards for maintenance and requires stop ...
Advantages of sliding doors are the small space requirements for door-opening, and their relative ease of automation. The mechanism is also secure, since it cannot be lifted out of its hinges. [6] Sliding doors are commonly found as store, hotel, and office entrances, used in elevators, and used as patio doors, closet doors and room dividers. [7]
A doorstop (also door stopper, door stop or door wedge) is an object or device used to hold a door open or closed, or to prevent a door from opening too widely. The same word is used to refer to a thin slat built inside a door frame to prevent a door from swinging through when closed.
The opening of the door twists the skein further, when the door is released the rope's torsional force pushes the arm back against the door, thereby closing it. [ 5 ] [ 6 ] In more modern times the clock manufacturers Thwaites and Reed in 1850 claimed to be the original inventors of the spiral door spring. [ 7 ]
A conventional door, also known as a regular door or vehicle door is a type of door that is hinged at the front-facing edge of the door, and so allows the door to swing outward from the hull of the bus. These doors are relatively safe, in that if they are opened during forward motion of the vehicle, the wind resistance will work against the ...
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.
EN 16034 is a set of European standards which specify the technical performance characteristics for fire resistant and smoke control products, such as fire doors. Compliance with this standard requires to fulfill the requirements of the Construction Product Regulation [1] for construction products (short CPR).