http://news.sky.com/story/1645947/your-eu-referendum-survival-guide
Think you may need this
The voting thing is the same in the UK Parliament. A bell rings if they have to vote because they can't agree something in the chamber. All the MP's vote, usually on party lines, so I assume this may have been something similar.
Part of the deal DC got is removing the ever closer union part so if we stayed there won't be anymore of that. Even if the MP's want to it is already in law that they have to have another referendum if they want to give away more powers. So we could all say no. Scotland is a strange case. The SNP don't want to be part of the UK but do want to be in Europe. Either way it's not really independence.
Thanks. That helps

Re. the voting, yes its a similar system. The other thing is that its a bit like 'Yes Minister' in big size. Its the unelected officials who seem to hold the real power. How many civil servants work for the EC.........about half of them!
even Abdy Burnham couldn't keep a straight face there.