Hull’s Guildhall carillon bells and Barnard Cook clock have fallen silent to make way for major repairs to one of the last remaining Time Balls in the UK. The historic Guildhall Greenwich Time Ball is the highest in the UK at 60 metres above ground level, which stands above the clock tower, is to be replaced with a new one and reclaim its position in the city’s skyline. Hobson and Porter are currently installing 21…