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2. Crash bar - Wikipedia

   en.wikipedia.org/wiki/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.

3. Single-point locking - Wikipedia

   en.wikipedia.org/wiki/Single-point_locking

   Single-point locking is a locking system in cabinet doors where locking takes places only at the point halfway up the edge of the door, where the latch engages with the doorjamb.

4. Bramah lock - Wikipedia

   en.wikipedia.org/wiki/Bramah_lock

   The Bramah lock used a cylindrical key and keyhole, as does the current lock. The end of the key has a number of slots of different depths which, when inserted into the lock and pressed against spring tension, would depress a number of wafers to a specified depth and enable the key to turn and open the lock.

5. Three-point locking - Wikipedia

   en.wikipedia.org/wiki/Three-point_locking

   Three point lock are also commonly used in wardrobes, like from Hettich [6] [7] Single-point locking may provide adequate security for some situations on tiered lockers, as the doors are shorter, and therefore more difficult to force open; however, the taller doors of full length lockers and cabinets are more susceptible to the application of leverage.

6. Electric strike - Wikipedia

   en.wikipedia.org/wiki/Electric_strike

   However, an electric strike's ramped surface can, upon command, pivot out of the way when the lock on the door is in the locked position and the door is opened, allowing a user to pull/push the door to open it without operating the mechanical lock or using a mechanical key.

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