DCHP-1 Online
Port Colborne fair lead [after Port Colborne, Ontario, at the western end of the Welland Canal, where the lead was first devised] 
See quote.
- 1959 The Port Colborne fair lead is a revolving pulley in the ship's side through which a line is put ashore. The pulley turns as the ship moves through a lock or up and down in the lock so the line can move easily from the power winch on deck.
- 1959 The Port Colborne fair lead is a revolving pulley in the ship's side through which a line is put ashore. The pulley turns as the ship moves through a lock or up and down in the lock so the line can move easily from the power winch on deck.