Search results
Results from the WOW.Com Content Network
Crash bar. A crash bar (also known as a panic exit device, panic bar, or bump bar) [1][2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 September 2024. Device to open or close door Various examples of door handles throughout history A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including exterior doors of residential and commercial buildings, internal doors, cupboard ...
Electric strike with monitoring contact. An electric strike is an access control device used for door frames. It replaces the fixed strike faceplate often used with a latch (also known as a keeper). Like a fixed strike plate, it normally presents a ramped or beveled surface to the locking latch allowing the door to close and latch just like a ...
Operation. The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. The holding force should be collinear with the load, and the lock and armature plate should be face-to-face to achieve optimal operation. The magnetic lock relies upon some of the basic concepts of electromagnetism.
The K-tool, also known as a "K-spreader" or a "K-tool spreader," is a specialized forcible entry tool used by firefighters to gain access to buildings or other structures in emergency situations. It is named for its distinctive "K" shape, which allows it to be used for a variety of purposes. [1] It is used in conjunction with a Halligan bar and ...
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]
XMark Wall-Mounted Multi-Grip Pull-Up Bar. More grip options mean more ways to target your back muscles (of which there are many!). XMARK offers a wide 50-inch bar with neutral-grip handles that ...
Based on the earlier Kelly tool, the Halligan is a multipurpose tool for prying, twisting, punching, or striking. [6] It consists of a claw (or fork), a blade (wedge or adze), and a tapered pick, which is especially useful in quickly breaching many types of locked doors. One variant of the Halligan has a heavy sliding collar on the shaft.