The original screw pile mechanism was invented and patented by Irish engineer Alexander Mitchell in the 1830's. His original design was a simple but effective means of construction for lighthouses, ship moorings, beacons and other structures on mud banks and shifting sands.
Eugenius Birch, another British engineer, adopted the screw piling technique in his construction of many of our seaside piers. He built at least 14 piers. Piles were set down using dozens of cast iron threaded columns which were screwed into the seabed. A lattice of ties and girders provided the support the the promenade deck.
- http://www.helicalpiersystems.co.uk/history.html
- http://helicalfoundations.org/wp-content/uploads/2013/06/Historical-Development-of-Iron-Screw-Pile-Foundations.pdf
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