sentences:  The Automatic tide signalling apparatus at Irvine harbour is probably unique, having been invented and patented by Martin Boyd, the Irvine harbour master, in 1905 and opened in 1906.In February 2009 the Lochrig or Lochridge Burn was severely polluted with diesel oil spilled from a train derailed at the railway bridge near Peacockbank farm, Stewarton.Mitigation measures were put in place, however pollution eventually reached the River Irvine.