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  2. Halligan bar - Wikipedia

    en.wikipedia.org/wiki/Halligan_bar

    The FDNY now issues a modified Halligan Tool called the "PRO-BAR," manufactured by Fire Hooks Unlimited, for use as the primary forcible entry tool." [5] — New York City Fire Museum. Despite its popularity among FDNY ladder companies, the department initially refrained from purchasing the tool to avoid the appearance of a conflict of interest ...

  3. Latch - Wikipedia

    en.wikipedia.org/wiki/Latch

    A latch is not the same as the locking mechanism of a door or window, although often they are found together in the same product. Latches range in complexity from flexible one-piece flat springs of metal or plastic, such as are used to keep blow molded plastic power tool cases closed, to multi-point cammed latches used to keep large doors closed.

  4. Positive locking device - Wikipedia

    en.wikipedia.org/wiki/Positive_locking_device

    These practices are not a means of obtaining or maintaining torque, rather a safety device to prevent the disengagement of screws, nuts, bolts, snap rings, oil caps, drain cocks, valves, and parts. Three basic methods are used in safetying; safety-wire, cotter pins, and self-locking nuts. Retainer washers and pal nuts are also sometimes used. [2]

  5. 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]

  6. Robertson screw - Wikipedia

    en.wikipedia.org/wiki/Robertson_screw

    Many screws used in electrical applications (for example, a typical NEMA 5-15R, breaker screws, and conduit screws) use a combination of a slotted/Phillips/Robertson screw head. A few tool manufacturers make bits to engage this screw head better than the traditional Phillips allowing for more torque before camout, for example, the C1 and C2 ...

  7. Door chain - Wikipedia

    en.wikipedia.org/wiki/Door_chain

    Door chains normally come equipped with very short screws which easily rip out. Any amount of force capable of defeating a deadbolt will also defeat a door chain. The tracks are usually straight, and any number of simple tools will allow the chain to be separated from the track.

  8. Padlock - Wikipedia

    en.wikipedia.org/wiki/Padlock

    The term padlock is from the late fifteenth century. The prefix pad- is thought to be related to the Latin ped which may refer to the portability of a padlock; it is combined with the noun lock, from Old English loc, related to German loch, "hole".

  9. Door furniture - Wikipedia

    en.wikipedia.org/wiki/Door_furniture

    An Aldrop is similar, but incorporates a slot through the handle which can engage a hasp for securing the bolt with a lock. Latch bolt – A bolt that has an angled surface that acts as a wedge to push the bolt in while the door is being closed. By the use of a latch bolt, a door can be closed without having to operate the handle.

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