[email protected] wrote: > Wikipedia at http://en.wikipedia.org/wiki/Canal_lock describes > rotating-sector gates thus: > > ===begins===== > Rotating-sector gates. These work very like traditional swinging > gates, but each gate is in the form of a sector of a cylinder. They > close by rotating out from the lock wall and meeting in the centre of > the chamber. English examples are the sea lock on the Ribble Link and > the lock at Limehouse Basin which gives access to the River Thames. A > dramatically-large one can be seen at the Rotterdam flood defences > (huge flood gates). > ===ends===== > > Now, I have been to Limehouse, but I've never been to the Ribble Link. > I've been looking at all the photos I could find of the sea lock on > the Ribble Link. Most of them show the gate with the tide full, but > there is no sign of a rotating gate. None of them show anything > looking like "traditional swinging gates ... rotating out from the > lock wall and meeting in the centre of the chamber." One photo shows > the gate at low tide; from that, and from one boater's account of the > gate being covered, it looks to me as if the gate rotates on a > horizontal axis, pivoting upwards from the bottom. > > Can anyone clarify this for me and point to a photo that shows the > nature of the gate? > > bjg >
A whole load of Ribble Link pictures has just come up on FUBC. Ron Jones Process Safety & Development Specialist Don't repeat history, unreported chemical lab/plant near misses at http://www.crhf.org.uk Only two things are certain: The universe and human stupidity; and I'm not certain about the universe. ~ Albert Einstein
