User:Cdenning/Turret clocks

The 1956 Restoration
Messrs. John Smith & Sons, of Derby, received the clock in February 1956. It was taken apart for the transport. They reassembled the clock in their workshop and compared it to existing clocks in the Science Museum before deciding how to restore it.

The help of Rolls Royce was enlisted to have X-ray photographs of two of the wheel arbors taken. This confirmed that the two arbors of the going train had been lengthened when the clock had been converted to pendulum operation. Subsequent investigations revealed that the clock had actually been converted twice, as remains of an earlier pendulum escapement were discovered.