Abandoned bikes

Have seen a bike locked to some railings that is quite rusty and missing its wheels and seat.

I was wondering if there was a process to to 'claim' the remains? Its an old 3 speed type bike, if that makes a difference.

Only the local authority can remove abandoned bikes from the public highway lawfully. There is a process by which a notice has to be placed on the bike, etc. I think I may know which one you mean, if it's been there for ages. It's now only a wreck and I'm suprised that no-one's taken action yet.