A Legacy of Lock Brands and Models**

In the annals of history, locks have been the sentinels of security, nowhere more critical than in the coal-rich North East of England. This voyage takes us through the lock brands and models that shielded the region's coal pits, each name echoing a chapter of protection.

**1. Widdrington Colliery and the Stalwart Yale Iron Padlocks**

As coal mining emerged, Widdrington Colliery stood fortified by Yale iron padlocks. Their "Yale" insignia offered assurance, but their key-dependent mechanism had its vulnerabilities.

**2. Chubb Detector Locks: Esh Winning's Guardian**

In Esh Winning, Chubb Detector locks came into their own. These locks' intricate designs became synonymous with heightened security, defending the coal pits against tampering.

**3. Bramah's Craftsmanship at Burradon Colliery**

The pits of Burradon Colliery relied on Joseph Bramah's lever tumbler locks. Precision was key in navigating these locks, enhancing security to protect the coal riches.

**4. Sargent & Greenleaf Combination Locks at Seghill Colliery**

At Seghill Colliery, Sargent & Greenleaf combination locks took center stage. Their numeric secrets replaced keys, but diligent code management was vital to prevent unauthorized entry.

**5. SmartLock ProX: The Digital Era's Mark**

In the modern era, the SmartLock ProX found its place, though not historically connected to the pits. Its biometrics and remote control reflect the evolving coal pit security landscape.

**Conclusion:**

The tapestry of lock brands and models woven into the fabric of North East coal pits narrates a saga of security's evolution. From Yale's enduring padlocks at Widdrington Colliery to Chubb's vigilant watch at Esh Winning, from Bramah's artistry at Burradon Colliery to Sargent & Greenleaf's codes of defence at Seghill Colliery, each lock brand stood as a guardian of coal wealth. The legacy persists, commemorating the dedication to safeguarding what held immeasurable value.