Coupling lock

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Coupling lock in Meppen / Ems. Technical monument.

A coupling lock (also coupling lock ) is a special design of a lock .

A coupling sluice has two chambers lying one behind the other, in which the lower sluice gate of the higher sluice serves as the upper gate of the lower sluice. By arranging a gate in the middle of the lock one is able to overcome the difference in height in two stages. Coupling locks have the purpose of overcoming great heights in order to avoid the construction of a single large lock, which would be associated with a high construction effort.

Examples of coupling locks: Meppen on the old Ems-Hase Canal , Nordhorn coupling lock , Parey lock on the former Plauer Canal at the confluence with the Elbe, the Weilburg shipping tunnel and the spectacular, huge Gatun and Miraflores locks on the Panama Canal .

The locks of the Caledonian Canal in Scotland have a picturesque effect thanks to the world's largest number of locks on a hydraulic structure, a total of 29 over 97 km in length, of which two are double, three are three, one is four and one are five The lock staircase , popularly known as Neptune's Staircase , is linked to 8. In contrast to most of the slowly decaying British canals, the Caledonian Canal is used extensively by recreational boating and is integrated into the landscape.

Individual evidence

  1. meppen-tourismus.de ( Memento of the original from October 21, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.meppen-tourismus.de