A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways...

items of importance Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Lock (film), a 2016 Indian Punjabi-language...

to the River Thames at Bow Creek; its first lock is Hertford Lock and its last Bow Locks. The Lee Navigation is named by Acts of Parliament and is so marked...

changes in ambient pressure Mechanisms with similar functions: Lock (water navigation) – Uses water levels instead of air Revolving door – Regulates building...

it included a clause that made the water companies responsible for the lock gates, because water from the navigation would be pumped to the reservoir,...

the size or the draft of the ship being contemplated for navigation and the seasonal water level. On others, it is quite objective, being caused by a...

Weybridge on the Wey Navigation had an additional single gate some 100 yards (91 m) below the lock, which when closed raises the water level above it, allowing...

The McClellan–Kerr Arkansas River Navigation System (MKARNS) is part of the United States inland waterway system originating at the Tulsa Port of Catoosa...

locks. The lowest lock was at Woodmill, where the navigation joined the estuary of the River Itchen, on its way to Southampton Water. The main wharves...

Wakefield, by the construction of 16 locks. Lock sizes were increased several times, as was the depth of water, to enable larger boats to use the system...