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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. Lockrod - Wikipedia

   en.wikipedia.org/wiki/Lockrod

   Powerbrace continues to manufacture lockrods, trailer door hinges, and security lock devices for trailer doors from its Kenosha plant. Trailer doors are secured to the end frame (end wall) of the trailer to make sure the cargo doesn't shift and break down the door, and second, to keep the doors aligned properly by not allowing them to move up ...

4. Panama Canal locks - Wikipedia

   en.wikipedia.org/wiki/Panama_Canal_locks

   Originally the locks also featured chain barriers, which were stretched across the lock chambers to prevent a ship from running out of control and ramming a gate, and which were lowered into the lock floor to allow the ship to pass. These fender chains featured elaborate braking mechanisms to allow a ship of up to 10,000 tons to be safely ...

5. Boat trailer - Wikipedia

   en.wikipedia.org/wiki/Boat_trailer

   An empty boat trailer. A boat trailer is designed to launch, retrieve, carry and sometimes store boats. As of 2024, the cost of a boat trailer can be anywhere between $700 to $8000, depending on the size and number of axles the trailer has. [1]

6. Big Chute Marine Railway - Wikipedia

   en.wikipedia.org/wiki/Big_Chute_Marine_Railway

   The old, outdated Swift Rapids Marine Railway was replaced with a single conventional lock in 1964, and plans were made for a single lock at Big Chute. Before construction began the sea lamprey , which had been devastating the fishing industry in the Great Lakes, was found in Gloucester Pool —at the bottom of the railway—and plans were put ...

7. Panamax - Wikipedia

   en.wikipedia.org/wiki/Panamax

   The usable length of each lock chamber is 1,000 ft (304.8 m). The available water depth in the lock chambers varies, but the shallowest depth is at the south sill of the Pedro Miguel Locks and is 41.2 ft (12.56 m) at a Miraflores Lake level of 54 ft 6 in (16.61 m).