Clock Manufacturing

CNC Machining

From the 3D model, engineering drawings are produced so that CNC programmes can be generated via CAM software.

A planning card is produced for each component then these are then machined and inspected to the drawing. With the finished part these are then booked in on our stock control system and then placed into the correct clock kit.

Bells

The Octave of cast bells from a perfect blend of PB2 and tin. From the cast bell this is then turned down in 3 stages, skimming the bells at each stage, the pitch is measured and checked.

This process is repeated until the bells are at the correct pitch.

Then outside of the bell is polished the inside is left cast. Then the bell is protected using a renaissance wax. Our bells are used on our Three Train Skeleton clock and our Single Train Condliff clock with Passing Strike.

Cleaning and Inspection

After polishing, the parts are cleaned in an aqueous ultrasonic cleaning tank and meticulously inspected for any imperfections, which can still be corrected at this stage. At this stage the brass parts are separated and sent to be electroplated.

Assembly

We begin with the pinion assemblies and greasing of the mainsprings. With every part polished and every screw, pin and spring in place, the final assembly begins. Every bore is given a careful last burnish and any tapped holes re-tapped and cleaned.

Testing

Thorough checks are made at every stage to ensure that on completion the clock will operate perfectly from the very first moment.

The most exciting part in the whole process for us is when the movement starts ticking for the very first time.

Once each clock is finished, the regulation is monitored over a few weeks and the final checks are completed before the clock is ready to deliver. Each clock is signed off and comes with a certificate of authenticity and guarantee of faulty workmanship of the lifetime of the original owner.

And finally, we even make the flight cases! Our clocks are shipped all over the world, so we have worked hard to develop a style of case that ensures our clocks arrive at their destination in perfect working order.