The UK hasn't had any sort of revolution since the 1600s, and it successfully weathered the storm of the revolutions of the 1800s and 1900s. What's so unique about the UK that enabled it to survive despite the revolutions gripping the rest of the world?
While waiting for more, this is an answer by /u/LBo87 on a similar question: https://www.reddit.com/r/AskHistorians/comments/67sjgr/why_didnt_great_britain_have_a_revolution_like/
While the answer does concentrate on the mid Victorian eras it does shed some light on the under the tensions in classes and also how Britian and how it's insitutions resolved these problems before it ending in violent revolution. It's a good read and more sources for further reading.