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2. Caisson lock - Wikipedia

   en.wikipedia.org/wiki/Caisson_lock

   Work on the second lock was suspended (the third lock had not been started) and early in the following year an inclined plane, to carry boats’ cargoes in wheeled tubs, was built instead. Eventually a flight of nineteen locks on a longer alignment up the slope was constructed, with a Boulton & Watt Steam Pumping Station, capable of lifting ...

3. 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 ...

4. Caisson (lock gate) - Wikipedia

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

   Most locks are closed by chevron or mitre gates rather than by caissons. These are pairs of hinged gates that form a "V" shape, with the deeper water outside the V. Water pressure thus holds them closed. These gates can be opened and closed quickly, so they are used for canal locks, to change levels, and also for most freight docks.

5. Locks on the Chesapeake and Ohio Canal - Wikipedia

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

   The advantage here is that the lock can fill faster with the wickets being in the gate, but will not swamp a boat in the lock chamber. In the 1830 design locks, the upper and lower gates are both the same height. [15] The majority of locks on the C&O canal are to this specification. Having the wickets in the gates, particularly if the gates are ...

6. 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 ...

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