Could this be the birth of a British Tea Party?

Taxpayers’ Alliance seizes on uncertainty in the coalition to press for a grass-roots right-wing mov

The scenes from Glenn Beck's "Restoring Honour" rally at the Lincoln Memorial in Washington, DC were astonishing. An estimated 87,500 conservative activists gathered in the US capital for a "non-partisan" rally that Beck said was intended to "reclaim the civil rights movement", falling on the 47th anniversary of Martin Luther King's "I have a dream" speech", made from the same spot.

The Tea Party movement is a phenomenal example of grass-roots activism of a kind that just doesn't exist in the UK. But this could be about to change, as it is revealed that the UK low-tax pressure group the Taxpayers' Alliance (TPA) has been taking advice from FreedomWorks, a Washington-based organisation which says it "recruits, educates, trains and mobilises millions of volunteer activists to fight for less government, lower taxes, and more freedom".

Members of both groups attended a conference in London yesterday to transmit the strategy required to build an "insurgent campaign" of UK low-tax lobbyists. Precisely how the Tea Party model might translate to the British political system has not been made clear, but the link forged between the two organisations has received some limited coverage in the national papers.

According to the Telegraph, the TPA has experienced a near-70 per cent rise in its membership over the past year. Matthew Elliott, chief executive of the TPA, told the Guardian that the anger at the recent HMRC errors that led to more than a million UK taxpayers being sent demands for backdated tax payments presents a unique opportunity for his organisation. He declared:

You could say our time has come. Take the strikes on the London Underground this week and how much they annoyed and inconvenienced people. Couldn't we get 1,000 people to protest [against] that?

A protest by 1,000 does not make a movement. But the Tea Party has grown from such demonstrations to fielding its own anti-incumbent candidates in the US midterm primaries, at least proving that such a rapid rise is possible, even if the environment in which it happened bears little similarity to that of the UK.

The TPA, however, is not a comparable organisation. In existence since 2004, it lacks the novelty and sheer momentum that have characterised the rise of the Tea Party in the US. A "British Tea Party" was launched by the Tory MEP Daniel Hannan in February, but little seems to have come of it.

For the TPA, being seen to be seeking advice from the media phenomenon that is the Tea Party is very possibly more valuable than the advice itself. However, a significant increase in grass-roots activism in the UK over the coming months is not at all out of the question. With the "big society" near the top of the government's agenda, the political discourse is very much leaning towards a return to localism and community-focused policy.

This is true of Labour, too -- the party's leadership campaign has been conducted in similar terms, the candidates repeatedly referring to their ability to "build a movement" and return control to the grass roots of the party. The clear front-runners, David and Ed Miliband, are no exception; both have referred to themselves as the preferred candidate of the party's grass roots.

With Britain facing an unfamiliar and unpredictable style of government, this could indeed be the high-water mark for groups such as the TPA. As well as left-leaning Liberal Democrats beginning to rebel, we have already begun to see more vocal dissent from the right of the Tory party, especially as issues such as the referendum on AV move up the agenda.

And as the TPA chief executive, Matthew Elliott, is also leading the "No to AV" campaign, his organisation is certainly going to be well placed to exploit growing unease on the right.

It seems more plausible than ever that if the TPA can add a swell of right-leaning popular support, the AV referendum and the local elections, both scheduled for May, could be the crucial turning point for this government.

Caroline Crampton is web editor of the New Statesman.

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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.