Mortise lock

History and Development of Mortise Locks
– Mortise locks have been used in the US since the 18th century.
– Early forms of mortise locks were combined with pulls to open the door, which were later replaced by knobs.
– Mortise locks were initially used only in formal rooms of expensive houses, while other rooms used box locks or rim locks.
– Thomas Jefferson ordered 26 mortise locks for the principal rooms in his home, Monticello.
– Depictions of mortise lock hardware were widely available in trade catalogues in the early 19th century.
– Developed in ancient Egypt around 4000 BC.
– Spread to Greece and Rome during the Roman Empire.
– Popularized in Europe during the Middle Ages.
– Became widely used in North America in the 18th century.
– Continues to be a common lock type today.

Components of Mortise Locks
– Mortise lock body or case.
Deadbolt or latchbolt mechanism.
– Keyed cylinder or thumbturn.
– Strike plate or box keeper.
– Escutcheon or faceplate.

Advantages of Mortise Locks
– High level of security and durability.
– Resistance to forced entry.
– Ability to withstand heavy use.
– Aesthetically pleasing and versatile design.
– Compatible with various door types.

Common Applications of Mortise Locks
– Residential homes and apartments.
– Commercial buildings and offices.
– Educational institutions such as schools and universities.
– Government facilities and institutions.
– Hospitality industry including hotels and resorts.

Maintenance and Troubleshooting of Mortise Locks
– Regular lubrication of moving parts.
– Cleaning and removal of debris from the lock mechanism.
– Adjustment of strike plate and latchbolt for proper alignment.
– Replacement of worn-out or damaged components.
– Consultation with a professional locksmith for complex issues.Sources: