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2. Locksmithing - Wikipedia

   en.wikipedia.org/wiki/Locksmithing

   Samuel Segal of the Segal Lock and Hardware Company invented the first jimmy-proof locks in 1916. Harry Soref founded the Master Lock Company in 1921 and patented an improved padlock in 1924 with a patent lock casing constructed out of laminated steel. Linus Yale Sr. invented a pin tumbler lock in 1848.

3. Slim jim (lock pick) - Wikipedia

   en.wikipedia.org/wiki/Slim_jim_(lock_pick)

   A slim jim (more technically known as a lockout tool) is a thin strip of metal (usually spring steel) roughly 60 centimetres (24 in) long and about 2–4 centimetres (0.79–1.57 in) wide originally marketed under that name by HPC Inc., a manufacturer and supplier of specialty locksmithing tools.

4. Lock picking - Wikipedia

   en.wikipedia.org/wiki/Lock_picking

   A set of lock picks and tension wrenches for pin/tumbler locks Picking while tensioning. Lock picking is the practice of unlocking a lock by manipulating the components of the lock device without the original key.

5. Deadbolt - Wikipedia

   en.wikipedia.org/wiki/Deadbolt

   A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [ 1 ] It is distinct from a spring bolt lock because a deadbolt can only be opened by a key or handle.

6. Lock bumping - Wikipedia

   en.wikipedia.org/wiki/Lock_bumping

   The lock is not visibly damaged, although the force of the bump can leave an indentation on the front of the cylinder. Certain clicking and vibrating tools designed for bumping can also be used. These allow for rapid repetition of bumping. Though some locks have advertised "bump proof" features, only a rare few key-pin locks cannot be bumped.

7. Segal Lock and Hardware Company - Wikipedia

   en.wikipedia.org/wiki/Segal_Lock_and_Hardware...

   The business was at first known as the Burglar-Proof Lock Company. [3] Segal was started by Samuel Segal, [4] formerly a New York City detective in 1912, [3] through his invention of a nearly burglar-proof lock. The vertical deadbolt lock eliminated a horizontal bolt, concentrating on the hinge principle. Segal had noticed that burglars forced ...