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Clock ticking down to Guildhall Timeball return as critical lifts complete for Hull treasure

70m high navigational aid for city's maritime community is being returned to its original splendour

Gently up, gently up, and very gently down... The 12 stone putties are elevated up the Guildhall clock tower.

The restoration of Hull’s historic Guildhall has taken another major step forward after 12 unique stone putties were lifted into position.

They will play an integral part in the return of the building’s famous timeball, which will take pride of place on the city’s skyline. The work is being carried out by Hull’s Hobson & Porter, and it is funded by The National Lottery Heritage Fund.

The company has already completed a major re-roofing programme at the Guildhall and in recent months it has been restoring the timeball and its internal mechanism as part of phase two of the project. Improvements and repairs have also been made to the clock tower and its historic stonework.

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This month, 12 sections of Portland stone, weighing a total of five tonnes, were lifted more than 70 metres into the air by crane, before being lowered onto a specially built reinforced deck above the clock tower. Each piece of stone has been repaired or replaced by specialist stonemasons from historic building restoration company, Stone Edge.

The team from Lancashire has now secured them into place ready to support the bowl that the 50kg timeball will drop into at 12 noon each day in winter and 1pm during summer.

Attention to detail: Final positioning is done by hand. (Image: David Lee Photography Ltd)


Dating back to 1918, it was a crucial navigational aid chosen for Hull due to its importance as a trading port, and its local connection with clockmaker John Harrison, who in the 1700s triumphed inventors around the globe to accurately determine longitude at sea. When the Guildhall Timeball dropped, it enabled navigators to verify and calibrate their maritime chronometers.

Liam Brown, site manager from Hobson & Porter, said: “This was a precarious part of the project. Each of these pieces of stone has either been restored or newly made, and each one had to be lifted and carefully, manually moved into position to sit below the new weathervane, which has been modelled on an 18th century merchant ship, and the new Timeball, which is the highest in the º£½ÇÊÓÆµ.