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soort term: 
Sluis
Waterbouw
Ook bekend als: 
Steek of zwaaideuren.
€ 45.00
€ 45.00
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€ 40.00

Gates are the watertight doors which seal off the chamber from the upper and lower pounds. Each end of the chamber is equipped with a gate, or pair of half-gates, made of oak or elm (or now sometimes steel). The most common arrangement, usually called miter gates, was invented by Leonardo da Vinci, sometime around the late 1400s.[11] When closed, a pair meet at an angle like a chevron pointing upstream and only a very small difference in water-level is necessary to squeeze the closed gates securely together. This reduces any leaks from between them and prevents their being opened until water levels have equalised. If the chamber is not full, the top gate is secure; and if the chamber is not completely empty, the bottom gate is secure (in normal operation, therefore, the chamber cannot be open at both ends). A lower gate is taller than an upper gate, because the upper gate only has to be tall enough to close off the upper pound, while the lower gate has to be able to seal off a full chamber. The upper gate is as tall as the canal is deep, plus a little more for the balance beam, winding mechanism, etc.; the lower gate's height equals the upper gate plus the lock's rise.
Puntdeuren van Sluis Panheel
Puntdeuren van Sluis Panheel
Puntdeuren
Puntdeuren
Puntdeuren
Puntdeuren
Puntdeuren Sluis Maasbracht