mortice lock meaning in Hindi

Examples

1. Mortice locks have historically, and still commonly do, use lever locks as a mechanism.
2. There were no mortice locks fitted as standard and children returning home were able to put their arms through the side mounted letter boxes and release the latches.
3. This has led to a popular confusion between the two; the term'mortice lock'is widely known and used, but usually in reference to lever keys.
4. It is not too difficult for a 3-lever lock ( typically 150 different combinations ), and remakably simple for the 1950s-style back-door mortice locks which were often identical, but it is a skilled task for a modern 5-lever lock ( thousands of different keys ), and would, in general, cost more than buying a new lock ( ?2 to ?0 in UK depending on quality ).