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  2. Astragal - Wikipedia

    en.wikipedia.org/wiki/Astragal

    The astragal closes the clearance gap created by bevels on one or both mating doors, and helps deaden sound. The vertical member (molding) attaches to a stile on one of a pair of either sliding or swinging doors, against which the other door seals when closed. Exterior astragals are kerfed for weatherstripping. The weatherstripping at the ...

  3. Espagnolette - Wikipedia

    en.wikipedia.org/wiki/Espagnolette

    Espagnolette locking device. An espagnolette is a locking device, normally mounted on the vertical frame of a French door or casement window.A handle or knob is connected to a metal rod mounted to the surface of the frame, about a metre above the floor.

  4. Lockset - Wikipedia

    en.wikipedia.org/wiki/Lockset

    Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]

  5. Trapped-key interlocking - Wikipedia

    en.wikipedia.org/wiki/Trapped-key_interlocking

    This is a trapped-key interlock on the door of an electrical switchgear cabinet. It is attached with one-way security screws to discourage casual removal, which would defeat the interlock scheme. Trapped-key interlocking utilizes locks and keys for sequential control of equipment and machinery to ensure safe operation. Trapped-key interlocks ...

  6. Mortise lock - Wikipedia

    en.wikipedia.org/wiki/Mortise_lock

    The parts included in the typical US mortise lock installation are the lock body (the part installed inside the mortise cut-out in the door); the lock trim (which may be selected from any number of designs of doorknobs, levers, handle sets and pulls); a strike plate (or box keep), which lines and reinforces the cavity in the door jamb or frame ...

  7. Physical security - Wikipedia

    en.wikipedia.org/wiki/Physical_security

    Door locking hardware - Electrified locks, electric strikes, or maglocks physically secure doors and release when valid credentials are presented. Integration allows doors to unlock when authorized. Request to exit devices - These allow free egress through an access point without triggering an alarm.

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