Sunday 23 October 2016

Big Ben bongs 'out by up to six seconds'

Published 25/08/2015 | 22:03

Clocksmiths are working to put right Big Ben's famous chimes
Clocksmiths are working to put right Big Ben's famous chimes

The bongs of Big Ben have become "temperamental" and can be out by up to six seconds, parliament's clocksmiths have admitted.

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The famous hour markers have been fast for the past fortnight, interrupting BBC Radio 4 broadcasts that use the sound live.

The Houses of Parliament's three dedicated clocksmiths have tried to deal with the problem by removing weights from the pendulum.

But they have no idea why it has happened, saying that at 156 years old the Great Clock just has "fits every now and then".

Ian Westworth, one of the clocksmiths, told Radio 4's PM programme: "The error started building up and went slightly unnoticed over a weekend. You can't just wind the hands forward. You have to make a very gradual change by adding coins to speed the clock up or taking weight off to slow it back down again.

"We don't know why it happened. You're talking about a 156-year-old clock, it does have a little fit every now and then. It's a little temperamental.

"Imagine running your car for 24 hours a day, 365 days a year for the last 156 years."

Initial attempts by the team to correct the mechanism made it run slow.

Mr Westworth said: "We have been up there most days just getting it right...

"Traditionally we have to go up three times a week to wind the clock.

"We phone up the speaking clock and at five minutes to the hour, start a stopwatch, go up to the belfry, stand by the bell and the hammer.

"As it strikes the bell we'll stop the stopwatch. We can tell if it's going slightly fast or slow."

Press Association

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