Based on the limited information provided, it seems you're asking about a specific type of combination lock, perhaps a "MK4 lock," that operates with a fixed sequence of dialing movements. Here's how it likely works:
The described lock, resembling a standard combination lock, utilizes a specific dialing sequence instead of requiring the memorization of different number combinations. This fixed sequence provides security while simplifying operation after the pattern is known.
Here's a breakdown of the typical process based on the reference:
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The Standard Appearance: The lock visually appears as a normal combination lock. This is important for concealing its unique functionality.
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The Fixed Sequence: The key to the lock is a pre-defined dialing sequence. This sequence involves turning the dial a specific number of times in alternating directions. In the example given:
- Five times clockwise to the first number.
- Four times anti-clockwise to the second number.
- Three times clockwise to the third number.
- Two times anti-clockwise to the fourth number.
- Finally, turn clockwise about half a turn.
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Unlocking: Completing this sequence correctly disengages the locking mechanism, allowing the lock to open.
Why this method?
This design offers potential advantages in specific scenarios:
- Simplified Operation: Once the sequence is learned, it is easier to remember and execute than a multiple-number combination.
- Tactile Memorization: The pattern of rotations can be memorized through muscle memory, making it easier to use even in low-visibility conditions.
Important Considerations:
- The reference example gives only one specific sequence. The principle could be implemented with many different sequences.
- The security of this type of lock depends on the secrecy of the sequence and the complexity of the movements. A simple sequence would be vulnerable to trial-and-error attacks.
- The "half turn" adjustment at the end could be a crucial element for proper alignment and unlocking.
In summary, this type of "manifoil lock" (likely the MK4 variant) uses a fixed sequence of rotations and directional changes rather than specific number combinations to unlock, potentially offering a balance of security and operational simplicity in certain applications.
