Canal inclined plane
Rollberge (also called rolling bridges ) replaced the former regionally and locks used to transport ships over land between two channels or waterways with unequal water table level. Rollberge were also precursors of boat lifts. The vertical uplift takes place by transport on an inclined plane specified in canal ramp. An ancient example of a Schiffskarrenweg is the Diolkos.
Rollberge were first applied under the name of taxiway bridges in the Netherlands for moderate height differences. When transporting small vessels also Bohlen documents or a slippery layer of wet clay were used. Since the development of the railway rolling mountains were equipped with tracks, which continued at both ends under water, which is why they are also called ship railways. The ships sailed up the whole car that a plane be left down by means of ropes, which simultaneously could be transported uphill a second car. The technique has been found in Germany only in the operated since 1860, five rolling mountains of the Elblag Canal application. These inclined planes are still in operation today.
The original form was the dry conveyance, where the ship is lifted out of the water. As supported at a few points hulls have only a low bending strength, we knew the car later, often with water basins. This also trough path mentioned technique has proven itself on the 1839 Scottish Monklandkanal built and completed in 1836 Chesapeake and Ohio Canal and is a boat lift is still state of the art. This is referred to as a wet financial support that can be done (eg when boat lift Ronquières ) in both the transverse (eg when boat lift Saint-Louis/Arzviller, see picture), as well as along the mountain.
Built as a last descent structure with dry Promotion boat lift is the new Big Chute Marine Railway in Ontario, Canada. This plant was put into operation in 1978.