You can use Storm internal tick tuple functionally to set a bolt to receive a tick tuple at a specified interval.
In the bolt section of the topology definition simply add the following configuration:
bolt MyBolt do
...
set Backtype::Config::TOPOLOGY_TICK_TUPLE_FREQ_SECS, 60
...
end
In your bolt, you can test for the tick tuple like this:
if tuple.source_stream_id == "__tick"
...
end