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canal lock click to hear : canal lock

Structure with a lock-chamber that can be filled with water or emptied to raise or lower a ship from one water level to another.
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See canal lock in : french | spanish
lock filling and emptying opening upper gate lock filling opening lock filling intake ladder miter gate recess lock filling and emptying system canal bed lock emptying system approach wall lower gate line hook side wall

lock filling and emptying opening click to hear : lock filling and emptying opening

Holes through which the water flows in to fill the lock-chamber or out to empty it.

upper gate click to hear : upper gate

Watertight door or pair of doors made of wood or metal that open when the water levels between the lock-chamber and the upper level are the same.

lock filling opening click to hear : lock filling opening

Holes through which the water flows to fill the lock-chamber.

lock filling intake click to hear : lock filling intake

Conduit with a sluice that opens to raise the water level in the lock-chamber.

ladder click to hear : ladder

Ladder fixed to the side wall for climbing up out of and down into the lock-chamber.

miter gate recess click to hear : miter gate recess

Indentation in the side wall into which a gate fits when open.

lock filling and emptying system click to hear : lock filling and emptying system

System consisting of a conduit with sluices alongside the side wall and perpendicular conduits on the canal bed that together raise and lower the water level in the lock.

canal bed click to hear : canal bed

Thick concrete base that makes up the lock’s foundation.

lock emptying system click to hear : lock emptying system

Conduit that evacuates the water from the downstream side causing the water level in the lock-chamber to go down.

approach wall click to hear : approach wall

Wall along the side wall that guides ships into the lock.

lower gate click to hear : lower gate

Watertight door or pair of doors made of wood or metal that open when the water levels between the lock-chamber and the lower level are the same.

line hook click to hear : line hook

Piece of wood or metal attached to the side wall for securing the rope that holds a ship in place while it is in the lock-chamber.

side wall click to hear : side wall

Wall forming one side of the lock-chamber and supporting its doors.