The Protection of Sonic Sound
When I was young our annual family holiday was a week in a boarding house in Newcastle, County Down (where the Mountains of Mourne sweep down to the sea!).
We travelled the 25 miles from our home in my dad's old Morris 8 two door car (a slow journey indeed). Around Dundrum Bay was St John's Point lighthouse and we used to watch the light and listen to the fog horns. Located at the northern tip of Dundrum Bay, the lighthouse started operation in 1844. Two years later, the captain of the SS Great Britain mistook the new lighthouse for the Chicken Rock Lighthouse on the Isle of Mann and ran aground on Dundrum Bay. The captain later blamed out-of-date sea charts for the accident. The SS Great Britain had been built by the ever industrious and entrepreneurial Isambard Kingdom Brunel and he wasn't going to give up on his ship. He travelled to the scene and commenced a huge and successful operation to refloat the ship.
At 45 feet in height (a total of 62 feet above sea level) and fitted with a whale-oil burning lamp, St John's Point Lighthouse was later improved by increasing its height to 102 feet. Various upgrades to the light have been made over the years, first to gas powered lamps, then to paraffin and most recently to electricity. The distinctive colour scheme, black with two yellow bands, was painted in 1954.
The fog horn shown on the right could have an effective range of 26 nautical miles (48 kilometres/30 miles) which you will agree, indicated the sheer power of the sound waves.
Our Primasonics range of Acoustic Cleaners with frequencies of between 420 Hz and 60 Hz have an even greater sonic sound wave force with the ability to debond granules, powders and ash from a wide range of industrial applications – from silos to power generation plants, from fans to SCRs, offering unrivalled protection from particulate build up.