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2. Lock (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Lock_(water_navigation)

   The boat enters the lock. 8–9. The boat enters the lock. 3. The lower gates are closed. 10. The upper gates are closed. 4–5. The lock is filled with water from upstream. 11–12. The lock is emptied by draining its water downstream. 6. The upper gates are opened. 13. The lower gates are opened. 7. The boat exits the lock. 14. The boat exits ...

3. List of boat lifts - Wikipedia

   en.wikipedia.org/wiki/List_of_boat_lifts

   Combe Hay Caisson lock; Camden Lock, William Congreve's hydropneumatic lock. The inclined planes of Dukart's Canal; Falkirk Wheel; Foxton Inclined Plane (dismantled 1926, now remains only) The boat lifts of the Grand Western Canal; Hay Inclined Plane; Hobbacott Incline on the Bude Canal; Kelpie boatlift, part of the Falkirk Helix project

4. Bingley Five Rise Locks - Wikipedia

   en.wikipedia.org/wiki/Bingley_Five_Rise_Locks

   [2] [3] The locks also have an overflow 'by-wash' at the side, which water runs down when the lock is not open. When a descending boat enters each lock chamber the water level rises slightly and the excess flows via an overflow channel at the side which runs into the main by-wash. [4] The structure is Grade I listed. [5]

5. Boat lift - Wikipedia

   en.wikipedia.org/wiki/Boat_lift

   A boat lift, ship lift, or lift lock is a machine for transporting boats between water at two different elevations, and is an alternative to the canal lock. It may be vertically moving, like the Anderton boat lift in England , rotational, like the Falkirk Wheel in Scotland , or operate on an inclined plane , like the Ronquières inclined plane ...

6. Caisson (lock gate) - Wikipedia

   en.wikipedia.org/wiki/Caisson_(lock_gate)

   Ship caisson at Droogdok Jan Blanken at Hellevoetsluis. A caisson is a form of lock gate.It consists of a large floating iron or steel box. This can be flooded to seat the caisson in the opening of the dock to close it, or pumped dry to float it and allow it to be towed clear of the dock.

7. Locks on the Chesapeake and Ohio Canal - Wikipedia

   en.wikipedia.org/wiki/Locks_on_the_Chesapeake...

   Oddly enough, many of the lock numbers correspond to the contour elevation – e.g., Lock 26 is at the 260-foot elevation line, and lock 30 is at the 300-foot mark, although it is doubted that things were planned that way, and many locks do not correspond to the elevation: e.g., Lock 72 is at the 580-foot mark.

8. Caisson lock - Wikipedia

   en.wikipedia.org/wiki/Caisson_lock

   The caisson lock is a type of canal lock in which a narrowboat is floated into a sealed watertight box and raised or lowered between two different canal water levels. It was invented in the late 18th century as a solution to the problem posed by the excessive demand for water when conventional locks were used to raise and lower canal boats ...

9. Lock keeper - Wikipedia

   en.wikipedia.org/wiki/Lock_keeper

   When the boat did resume its journey, the lock keeper followed on horseback, all the way to Cumberland (the end of the canal) with a club threatening to settle things. [8] There were plenty of incidents with negligent lock keepers. On September 11, 1895 at Lock 22, the boat Excelsior arrived, and tried to lock through. The lock keeper was so ...