Multi-unlocking gate - GIF

**Jon** · May 30, 2019, 04:46 PM

Multi-unlocking gate.

Previously:

Breaking a lock with two wrenches - GIF
Visible combination lock model - GIF
Lockout-tagout equipment safety lock - GIF and photo

**jimfols** · May 31, 2019, 06:34 PM

This is why I hang out here.

**Frank S** · May 31, 2019, 10:08 PM

on the gats leading across fields to a rig location sometimes the entire chain would be made out of padlocks which I always thought was kind of silly to have a locked gate attached to a barbwire fence but what do I know,

**Toolmaker51** · Nov 16, 2019, 07:14 PM

Multi-locking gate, more correctly security of a single access by opening just one of multiple locks.
Because cutting duplicate keys for one lock is so 1990's.

**NeiljohnUK** · May 7, 2024, 07:28 AM

Originally Posted by Toolmaker51

Multi-locking gate, more correctly security of a single access by opening just one of multiple locks.
Because cutting duplicate keys for one lock is so 1990's.

Often it's utilities that want to issue a single key that opens multiple locations to their employee's, but not to others who also have their own multiple locations but only share this one. One site near me has a lock daisy-chain, others have these https://www.everlocksystems.com/2016...ght-slx-model/

My work key chain carries 10 different sub-master keys and another 20 dedicated keys, such is our need to keep things secure, duplicates are a huge security issue.