suhail 123 wrote:Essentially, it is a chain door which locks 2 doors together. I am not sure how it works, or what it is even called.
I am in the UK, so Mortice locks will be important to learn, but I agree with your reccomendations.
Thanks,
Suhail
Mortice really just refers to a lock that mounts 'inside' of the door as opposed to a 'rim' lock which mounts onto one side or face of the door. With a few exceptions most types of latch mechanism and most lock mechanisms can be found in both mortice and rim mount versions.
In no particular order, the lock mechanisms that are still in some use today are: Warded, Lever, Wafer, and Pin-tumbler. Wafer and pin-tumbler locks are the most common in modern production and can be picked with largely the same tools. Warded locks are common in either
very old installations (generally 100 years old or more) or on very low security or cheap padlocks, storage boxes and cabinets; these usually cannot be picked with the same tools that you would use in pin-tumbler or wafer locks but the tools for them are quite simple and can be made out of metal stock with some basic hand tools. Lever locks are not common in newer installations outside of the UK (as far as I know), they require specialized tools and use some different techniques than other modern locks.
Most common pick-sets are geared towards pin-tumbler and wafer locks. Warded 'picks' (which are essentially skeleton keys) are available from many manufacturers and are usually quite small and cheap to acquire. Tools for lever locks are slightly harder to find and more expensive than pin-tumbler, wafer, and warded tools (picks for lever locks are usually multi-part mechanical devices instead of just shaped pieces of metal) but many locksport-friendly retailers (particularly those catering to the UK market) sell them.